CAM OPERATED ROTARY SWITCHES CAM OPERATED ROTARY SWITCHES are defined as set of contacts arranged to make and break in a sequential fashion by which the connected outputs will either close or open the circuits. The main areas of operation are in making, breaking and isolation of power circuits and switching of auxiliary circuits. The Cam which does the function of closing & opening of the contacts have multiple positions ( Rotary Movement) which allows multiple circuit functions controlled through a single operation. These switches are suitable for AC as well as DC applications. By virtue of CAM design functions like Make Before Break type of contacts can be easily achieved. The number of positions and the switching angle are flexible and will offer the user a choice to decide based on the requirement. Another advantage, which can be derived, is the flexibility in the Contact block selection, which gives the user the option to select the number of contacts as per his requirement. The choice also covers the rating of the applicable Operational Duty. This will ensure that the right switch is chosen for the application. CAM operated rotary switches also offers design flexibility to assemble complex switching programmes to customize any switching application. The basic operating mechanism of these switches depends on the type of application. Quick-Make, Quick-Make-Quick-Break and Spring return operating mechanisms can be chosen. Usage of high quality engineering materials for various components ensure that the switches have long life with higher degree of Electrical and Mechanical endurance. Double Butt contacts with silver bimetal on copper ensure better making and breaking over conventional knife-edge switches. Usage of high-grade engineering plastics like Nylon and Celcon for the components and glass filled polyamide construction provides greater mechanical strength to the switches. These Cam operated rotary switches have versatile mounting options to suit any kind of application. Special mounting options like single hole, door interlocking and padlocking are also available. Greater importance is attached to the aesthetics of the switches. These switches come with attractive combination of knobs and front plates to render greater compatibility to the panel design. User defined marking on the script plate with different sizes of script plates eliminate the need to label the switch on the panel. The enclosed sheets will give an indepth view into the various types of switches, Mountings, Switching Programmes, Optional Accessories and the Ordering procedure for CAM OPERATED ROTARY SWITCH. INTRODUCTION
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Transcript
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CAM OPERATED ROTARY SWITCHES are defined as set of contacts arranged to
make and break in a sequential fashion by which the connected outputs will either
close or open the circuits.
The main areas of operation are in making, breaking and isolation of power circuits and
switching of auxiliary circuits.
The Cam which does the function of closing & opening of the contacts have multiple
positions ( Rotary Movement) which allows multiple circuit functions controlled through
a single operation.
These switches are suitable for AC as well as DC applications. By virtue of CAM
design functions like Make Before Break type of contacts can be easily achieved. The
number of positions and the switching angle are flexible and will offer the user a
choice to decide based on the requirement.
Another advantage, which can be derived, is the flexibility in the Contact block selection,
which gives the user the option to select the number of contacts as per his requirement.
The choice also covers the rating of the applicable Operational Duty. This will ensure
that the right switch is chosen for the application. CAM operated rotary switches also
offers design flexibility to assemble complex switching programmes to customize any
switching application.
The basic operating mechanism of these switches depends on the type of application.
Quick-Make, Quick-Make-Quick-Break and Spring return operating mechanisms can be
chosen.
Usage of high quality engineering materials for various components ensure that the
switches have long life with higher degree of Electrical and Mechanical endurance.
Double Butt contacts with silver bimetal on copper ensure better making and breaking
over conventional knife-edge switches. Usage of high-grade engineering plastics like
Nylon and Celcon for the components and glass filled polyamide construction provides
greater mechanical strength to the switches.
These Cam operated rotary switches have versatile mounting options to suit any kind
of application. Special mounting options like single hole, door interlocking and padlocking
are also available.
Greater importance is attached to the aesthetics of the switches. These switches
come with attractive combination of knobs and front plates to render greater compatibility
to the panel design. User defined marking on the script plate with different sizes of
script plates eliminate the need to label the switch on the panel.
The enclosed sheets will give an indepth view into the various types of switches,
Mountings, Switching Programmes, Optional Accessories and the Ordering procedure
for CAM OPERATED ROTARY SWITCH.
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CONTENTS
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CAM ASSEMBLY CONTACT ASSEMBLY
Salzer switches S, TP & RT series are designed to accomodate two isolated Double break silver alloy contacts per stage at 180 degreedisposition. AC Switches are characterised by “Quick make-slow break” action by the inbuilt feature in our latching device and camconstruction, these switches can be applied for DC Switching also by Derating and by adding additional contacts in series according to theDC Switching voltage.
Operating Temp : -25OC to 55oC
Operating Frequency : Upto 10KHz
Humidity 95% Rh : 48 hours
Contacts : Double break Type AgCdO
Insulation : Glass Filled polyamide with High Tracking Index
S SERIESSTANDARD
TP SERIESTOUCH PROOF
RT SERIESREAR TERMINATION
* Available from 6 to 400 Ampere
* Open Terminals for easy Accessibility
* Available from 6 to 16 Ampere
* Touch Proof (Finger Protected)Terminals (IP20)
* Available from 16 to 63 Ampere
* Rear Facing Terminals for convenientAccess
* Touch Proof (Finger Protected)Terminals (IP20)
AC Duty Rating DC Duty Rating
Category Typical AC Application Category Typical DC Application
AC-1 Non-Inductive or slightly Inductive Loads, DC-1 Non-Inductive or slightly Inductive Loads,Resistance furnaces. Resistance furnaces.
AC-3 Squirrel-cage motors : starting switching DC-22 Switching of resistive loads, IncludingOff motors during Running. moderate overloads
AC-15 Control of AC electromagnetic loads DC-13 Control of DC electromagnets
AC-21A Switching of resistive loads, Including DC-23 Switching of motor loads or othermoderate overloads (frequent switching) highly inductive loads
AC-23-A Switching of motor loads or other highly ---- -----inductive loads (frequent switching)
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Sw
itch
Life
(U
nder
sta
ndar
d O
pera
ting
cond
ition
s)
Mec
hani
cal
Life
: 1
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Ope
ratio
ns @
300
cyc
les
/ ho
urE
lect
rical
Life
:
10,
000
Ope
ratio
ns a
t 10
0 %
Rat
ed d
uty
at 1
20 c
ycle
s /
hour
AC
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S10
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10S
16T
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RT
16R
T20
S25
RT
25S
32R
T32
S40
RT
40S
63R
T63
S80
S10
0S
125
S20
0S
400
Rat
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( Ie
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220-
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Sin
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Fin
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Term
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scr
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A V V kV A KW
KW
KW
KW
KW
KW
KW A KA A A mm
2
mm
2
mm
2
mm
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Met
ric
Nm
6 440
250 4 8 1 2.2 -
0.25 0.8
1.5 - 6 3 6 4 0.7
1.5
0.7
1.5
M3
0.5
10 440
250 4 12 1.8 3 -
0.37 1.5 3 - 10 3 10 6 0.7
1.5
0.7
1.5
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16 690
415 6 20 3 7.5
7.5
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5.5
5.5
16 5 16 16 1.5 4 1 2.5
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8
16 690
415 6 20 3 7.5
7.5
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5.5
5.5
16 5 16 16 1.5 4 1 2.5
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50.
8
20 690
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7.5
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5.5
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25 690
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11 11 1.5 4 7.5
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15 15 2.2
5.5
11 11 32 10 32 32 2.5 6 1.5 4 M4
1.2
40 690
500 6 50 11 18.5
18.5
2.5
7.5
15 15 40 20 40 40 2.5
10 2.5 6 M5 2
63 690
500 6 80 15 22 22 3 15 18.5
18.5
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10 M5 2
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690 6 100
22 33 30 -18
.522 22 80 25 80 80 6 25 6 16
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5
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690 6 125
30 41 37 - 22 33 33 100
25 100
100
10 35 10 252x
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690 6 150
31 45 41 8.3
17.2
37 37 125
25 125
125
10 50 10 352x
M5
2.5
200
690
690 6 225
37 55 45 - 22 45 45 200
25 160
160
10 70 10 50 M10 2.5
320
690
690 6 425 - - - - - - -
400
50 250
250
20 140
20 100
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CU
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CU
S
CS
A /
UL
RA
TIN
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AC
Rat
ing
Co
de
Un
itS
6S
10T
P16
RT
20T
P25
TP
32S
16S
25S
32
RT
16R
T25
RT
32S
40S
63R
T40
RT
63S
80S
100
S12
5S
200
A V HP
HP
HP
HP
HP
HP
6 300
0.25 0.5
0.75 1 - -
10 300
0.33
0.75 1 1 - -
15 300
0.33 1 1 2 - -
20 440
0.33 1 1 2 - -
20 600 1 3 2 5 10 15
30 600 1 3 2 5 10 15
40 600 2 5 5 10 20 24
55 600 3 7.5
7.5
15 30 40
70 600 - - 10 20 40 50
95 600 - - 15 25 50 50
125
600 - - 15 25 50 50
175
600 - - 20 25 50 50
Am
pere
Rat
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Ope
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olta
geH
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atin
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Pha
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20
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80
V6
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ISOLATORS:
Isolators which are ON/ OFF switches are used for making/breakingelectrical circuits for isolation purpose. In rotary switches isolatorsare offered in very compact versions from 1 pole to 12 pole formultiple circuit isolation. The duty category utilisation of the isolatorsare categorized as AC1/AC21 for higher duty like motor duty operationthe rating AC3/AC23 should be considered
Isolators can be offered with stayput /spring return and preclosecontacts for neutral & earth closing applications.
Application: Isolation of Main,Control & Instrumentation circuits alsofor motor ON / OFF & Machine tool main incomer isolation
Description Programme Code Programme Code Programme Code No of Stage
1 Pole 61001 61191 611952 Pole 61002 61192 611983 Pole 61003 61199 611974 Pole 61004 61194 611965 Pole 61005 - -6 Pole 61006 61906 -7 Pole 61007 - -8 Pole 61008 - -9 Pole 61009 - -
10 Pole 61010 - -11 Pole 61011 - -12 Pole 61012 - -
112233445566
CONNECTING DIAGRAM
1 to 12 pole
1 3 5 7 9 11 13 15 17 19 21 23
2 4 6 8 10 12 14 16 18 20 22 24
ISOLATORS WITH PRECLOSE CONTACT SPRING RETURN ISOLATORS 45 Degree
611944 to 5 pole
90 Degree 1 3 5 7
2 4 6 8
1 3 5 7 9
2 4 6 8 10
Description Programme codeNo ofStage
4 Pole - 1 Pole Preclose 61194 24 Pole - 3 Pole Preclose 61904 25 Pole - 3 Pole Preclose 61905 3
3 Pole with Neutral Terminal 61178 2Feasible Ampere. Rating :
6,10,16,25,32,40,63,80,100,125,200 & 400 Amps
45 Degree Spring Return to OFF
Description Programme codeNo ofStage
1 Pole Spring Return 61351 12 Pole Spring Return 61352 13 Pole Spring Return 61353 24 Pole Spring Return 61354 2
These switches are also called as Pole-Way switches, they areavailable with OFF & without OFF. Multistep does the function ofconnecting different circuits to a common supply or vice-versa.1 pole, 2 pole & 3 pole is popular for 1 Ph, 2 Ph & 3 Ph supply.
Application:- Typical usage Tap changing switch for Transformer /Stablizer and other special application circuits.
With the help of these switches we can * Measure Currents in different circuitswith Current Transformer, a single Ammeter & a switch * Measure Voltages betweenphases and phase & Neutral with one voltmeter & a switch * Measure Voltages &Currents of a circuit with one Voltmeter, one Ammeter and a single switch.
These switches directly operate the motor with AC3 or AC4 Duty Rating. They are mainly used for motor Forward - Reversing , Star -Delta,Two speed Forward -Reversing and other special switches designed to operate with a Contactor with buit-in tripping feature in the eventof Power failure and Overload.
These switches are called Gang switches, as they increase the capacity of circuits by ganging. They are used for Serialing or Paralleling toderive different circuit capacity . The power of Battery supply can be increased by serialing .The power of resistor can be increased byParalleling.
Applications: In Railway coaches for controling the Battery supply, In Dept of Telecommunication panels and special application circuits.
Control switches are used to energise contactors for controlling motor operations. Most of the switches are of Spring return type to enablelatching of the circuit with Contactor’s NO contact to facilitate tripping by Contactor’s Tripping device.
Applications: Control switches are a unique alternative for many of the “Push Button“ stations, where it is preferred to control a system withone switch instead of many Push Buttons. Many positions of the switch are possible to derive combinations.
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B00 Front Mounting S25/S32 Switches with 48x48 plate ✯ ✯ ✯ ✯
B02 Rear/Back Mounting with Standard Front Plate ✯ ✯ ✯ ✯ ✯ ✯
B03 Front Mounting, Standard Mounting Plate ✯ ✯ ✯ ✯ ✯ ✯
B12 Rear/Back Mounting with next size plate ✯ ✯ ✯ ✯ ✯
B13 Front Mounting with next size plate ✯ ✯ ✯ ✯ ✯ ✯
B14 Single Hole Mounting 48x48 plate for S6 to S32 ✯ ✯ ✯ ✯ ✯ ✯
B19 Single Hole Mounting 32x32 plate for S6 & S10 ✯ ✯ ✯ ✯ ✯ ✯
B21 Din Rail Mounting on 35 mm Rail ✯ ✯ ✯ ✯ ✯ ✯
B30 Front Mounting with Rectangular padlock ✯ ✯ ✯ ✯ ✯
STOP-START SWITCHWith Spring Returnto run for 2 units
Without Jumper
Contactor ControlWith Spring Return
to OFF
Motor VoltageControl Switch
1
2
1
2
2
2
Feasible Ampere Rating : 6,10,16,25,32,40 & 63
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ØD
S
L H
F3 Max.
Panel gap
3
13
Locking lever
23
Drilling plan
6/10 Amps only
ØB2
A
Panel gap
3 to 5Drilling plan
SQ B1
B2 B3
SQ
F
Features : * Standard 4 hole Front panel Mounting * Knob / Handle operatable * Suitable for all switching angles & Spring return switches *Front Assembly in 4 different colors Yellow/Red, Grey/Black, Black/Black, Aluminum Finish.
*Quote B13 for next Bigger size Front plate
B14/B19
Features : - * Single hole mounting with std dia 22.5 mm * Eleminates the need for screws / Hardware for panel fixing * Easy Termination *Suitable upto 32 Ampere
Features : - * Key Operated safety switch, prevents operational access to unauthorised personnel., * Available with or without Front plate* Suitable up to 32 Ampere.
Features : - * Four Hole Rectangular Padlockable mounting * Secure with max four padlocks in OFF position.* Prevents Operational Acessto Unauthorised Personnel * Suitable for switches with 900 Switching angle .
Length L = No of Stages x S + W
B 33
Features : - * Four Hole Round padlockable mounting * Secure with max. 3 padlocks in OFF position. prevents operational access tounauthorised personnel.* Suitable for switches only with 900 Switching angle
Length L = No of Stages x S + W
* IP 55 Protection from front
* IP 55 Protection from front
Features : - * Knob / handle operatable Switch * With Key lockable Assembly prevents switching by unauthorised personnel. *Key lock / Keyremovable only in OFF position * Lock Assembly can also be provided on top
Features : - * Switches Mounted in ABS Plastic Enclosure * Provides protection from dust & hazardous material * with Round PadlockableDevice * Secure with max 3 Padlocks in OFF position * Prevents operational access to Unauthorised Personnel * Suitable for 900 switches.
Features : - * Switches Mounted in sheet metal enclosures *Provides protection from dust & hazardous enviorement. *Knob / Handleoperatable * Suitable for switches upto 32 Ampere
Features : - * Four hole base mounted on Rear side of the Panel * Knob/ Handle operatable
Features : - * Mounted on rear side of the panel and operated from the front door * Door interlockable mechanism & door openable only inOFF position. with round padlockable device.* Secure with max 3 Padlocks in OFF position
Length L = No of Stages x S + W
Features : * Snap mounting base on Din EN50022 ( Omega) rail 35mm & 1.2 mm thick * or Two Hole rear mounting.* Provides Easy Termination
Length L = No of Stages x S + W
* IP 40 Protection from front
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Features : - * Mounted on Rear side of the panel and operated from the front door * Door interlockable mechanism & panel door openableonly in OFF position. * Provides a safety feature.* Knob / Handle operatable
Always mounted on switch supplied as optional for S40 and S63
S80, S100, S125,
ALWAYS MOUNTED ON SWITCH
EXTENDED TERMINALS
PUSH ON TERMINALSS16
Mating terminal socket Code No : 1653
S400
Always mounted on switch
ACCESSORIES
S16
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Rectangular
SHROUDING COVERS
* Other special size mounting plates at Front or Rear can besupplied against requirement.
ACCESSORIES
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S-Series
DH
L
H
D
STANDARDSTYLE FRAME SIZE
BIGGERSTYLE
S6/S10TP6/TP10 --
S16TP16RT16
S6/S10TP6/TP10
S16TP16RT16
S25/S32RT25/RT32
S25/S32RT25/RT32
-- S40 & Above
S16TP16RT16
--
S16TP16RT16
S40 & Above
S25/S32RT25/RT32
SPECIAL FRONT PLATES
48 x 60
64 x 80
TYPE L D HNO. OF
STAGES
S63
S200
175210175210
110200
115200
3333
10090115100
TYPE ØDH
2 STAGE 3 STAGES25/S32
S6365+0.2
89+0.2
48118
63182
CODE - YR CODE - GB CODE - BB CODE - AB
Yellow Front PlateRed Knob
Grey Front PlateBlack Knob
Black Front PlateBlack Knob
Aluminium Foil withBlack Knob
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The switch design and construction gives flexibility for makingcustomised programmes within a very short period. Basically anengineer trying to specify the customised programme shouldconcentrate on the following points.
(a) Number of Operating positions of switch handle
(b) Total number of Contacts required
(c) Contact closing sequence of all the contacts required in variouspositions of handle. Please Note :-
(d) Each position should be identified and Script plate marking requiredin those postions should be mentioned .
(e) The latching angle (angle between positons) Standard latching /switching angles are 600, 900, 450 & 300 .Spring return are alsopossible for 450 & 900 switching angle.
Note:-The above Construction carries a five digit number starting with( 7xxxx ) alloted by us .This Number alone is sufficent for futurecorrespondance & further Ordering
( f ) Total number of contacts can be decided based on the actualneed. You may arrange the contacts to your convenience andnumber them as 1/2, 3/4, 5/6...etc.. While making the switch, wemay rearrange the contacts to use solid jumpers so as to avoidloose wire jumpers
(g) Fill up the Programme sheet by marking ‘X’ at places where con-tacts have to Close ( NC ).
Also Ensure to specify the Ampere Rating, Mounting Style, Switchingangle, Script Plate markings ,Terminal marking, Lockable Position(If any)
For example refer the sample Customised programme sheet of aBedroom switch having 3 contacts controlling a Tube,Fan & Nightlamp
Switch Positions
NIGHT LAMP
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Ampere SelectionProgramme Selector Table
Example:-
Type Selection
Mounting Selection
6 1 1 9 7 S E B O 3 T D Y R
Programme Code Type Ampere Mounting Knob Color
Programmes Prog CodeIsolators Pg 3Changeovers with OFF Pg 4Changeovers without OFF Pg 5Multistep with OFF Pg6Multistep without OFF Pg 7Instrumentation Switches Pg 8 & 9Motor Control Pg 10 & 11Gang Switches Pg 12Control Switches Pg 13
Type Code Possible AmpsS-Series S 6 to 400 AmpsTouch Proof T 6 to 16 AmpsRear Acess Termination R 16 to 63 AmpsDC Switches D 16 to 500 AmpsPhase Selector only for1 pole 3 way with OFF P 25 to 63 Amps
Yellow front plate Grey front plate Black front plate Aluminum Foil withRed knob Black knob Black knob Black knob
Knob / Handle Selection
CODE - TD CODE - FH CODE - PG CODE - LV
TEAR DROP
CODE - BG
FLAG KNOB PISTOL GRIP BALL GRIP LEVER HANDLE
CODE - YR CODE - GB CODE - BB CODE - AB
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FEATURES
■ Specially designed spring returnmechanism for reliable operation.
■ Robust handle design for better gripand operating leverage.
■ Facility to add on multiple contacts inLMD operations.
■ Possibility of adding upto 9 main contactsfor trip / close operations.
BREAKER CONTROL SWITCHES
OPERATIONS
Main contact operations
Breaker control switches have 3 operatingpositions viz., Trip, Neutral & Close either instayput or in spring return mechanism. Inspring return mechanism handle returns toneutral position after trip / close operation.Main contacts operates in trip or in closepositions according to the operation of theswitch.
LMD operations
LMD contacts can either be fitted in trip orin close position. When the switch makesclosing operation the LMD contacts fitted inthe closing position will close and stays inthat position even after the switch handlegoes back to neutral position. Similarly theLMD contacts fitted in the trip positionremains in that position when the switchhandle makes trip operation and goes backto neutral position.These LMD contactsgenerally used for annunciation purposethus helps the user to indicate triping ofbreaker due to fault conditions and help indiagonising the feeder fault problems.
SIL Operations
This device fitted along with this breakercontrol switch will act as a blocking devicefor consecutive closing of the switch, willprevent closing coil of the breaker gettingcharged repeatedly and hence eliminatesburning of this closing coil.
TECHNICAL SPECIFICATION
GENERAL :-
ENDURANCE
Mechanical * - 1 Lac Operations at 300cycles /hour
Electrical * - 10,000 Operations at 120cycles/ hour
Operational Temperature :-250 C to 550 C
Frequency up to 5 KHz
SG 25 SG 32
Inductive L / R AmpsVoltage
No ofContacts in
seriesResistive
Amps
Inductive L / R AmpsResistive
Amps10m sec
20m sec
40m sec
10m sec
20m sec
40m sec
50 V
125 V
250 V
123123123
20--3
20-
1.05
20
20--
2.515200.52
10
1520-
1.510200.31.04
614201.05
100.20.51
25--5
25-
1.26
25
25--3
18250.62.512
1825-2
12250.41.25
818251.26
120.30.61.2
DESCRIPTION UNIT SG25 SG326902506
40
146
32
10
2.56
1.54
M41.2Nm
60030
690250
632
85
25
10
1.541
2.5M4
1.2Nm
60020
V acV dckVA
AA
A
kA
mm2
mm2
VA
AC-720 VADC-275 VA
Rated Operational voltage Ue
Resistance to surge voltage UimpRated uninterrupted current IthRated Operational Current IePilot Duty AC15
20-240V AC380-440V AC
Short circuit protectionHRC fuse size
Rated short circuitTerminal cross sectionRigid wire min
maxFlexible wire min
maxTerminal ScrewTerminal Tightening Torque
CSA / UL RATINGSVoltage RatingAmpere Rating
VA Rating
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BREAKER CONTROL SWITCHES
MOUNTING STYLES
B03
B90
TYPE D WSG25 58 14SG32 62 16
TYPE D WSG25 58 14SG32 62 16
65
3 to 5Panel gap
Ø5.5 Ø12
SQ4880
spring return
stayput 15
50
MxW17.50LxW13
seq.locking
&LMD
NEUTRAL
C
L
O
S
E
T
R
I
P
SQ64
SALZER
M
L
No Of Stages in Main Contacts
No Of Stages in LMD Contacts
DRILLING PLAN
ØD
Main
Contacts
LMD
Contacts
55
3 to 5Panel gap
Ø5.5 Ø12
DRILLING PLAN
SQ48
75
spring return
stayput 15
40
MxWLxW
NEUTRAL
C
L
O
S
E
T
R
I
P
SQ64
SALZER
No Of Stages in Main Contacts
No Of Stages in LMD Contacts
ØD
Main
Contacts
LMD
Contacts
R
Seq.locking & LMD
13 17.50
M
L
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BREAKER CONTROL ORDERING CODE
25 Ampere Spring return TNC with 1 set of Main Contact 1NO+1NC,1 LMD contact in Trip position & 1 LMD contact in Close position withSequential locking and Barrell Lock Mounting
Example:- 1 Q S L 1 1 E B 9 0 P G B B
Digit 1
Digit 2
Digit 3
Digit 4
Digit 8, 9, 10
Digit 5
Latching Mechanism CodeSpring Return SStayput C
Sequence Locking CodeIf required QNot required O
Digit 7
Digit 6
1 2 3 4 5 6 7 8 9 10 P G B B
BREAKER CONTROL SWITCHES
No of LMD Contacts in Trip PositionDescription Code1 Contact 12 Contact 23 Contact 34 Contact 45 Contact 56 Contact 6If not required 0
■ All DC power circuits – Railways,Telecommunications & Power plants.
D40 R
170PCD
1
24
1.5
L 138.5
S
1.5
0.8
3.1
236.0
0
D100 - D500
DESCRIPTION UNIT D100 D200 D300 D400 D500DUTY RATING - DC 22A L/R 2M secOperational Voltage VDC 250 250 250 250 250Voltage for AC Rating VAC 460 460 460 460 460Operational Current A 100 200 300 400 500Thermal Current ? I th ? A 125 250 375 500 625Switching Angle Deg 90 90 90 90 90Maximum Contact Stages 9 9 9 9 9
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Construction & Features
D series switches are designed for DC Switching applications ,these switches are Constructed using Snap action Mechanism whichprovides Quick make Quick break of the contacts which is essential for DC switching. The Contacts are of AgCdO Double break Butt type,housed in a Glass filled Polyamide Contact stage and are operated through cams for higher Electrical endurance & smooth operation.
Suitable for 90 & 60 Degree Switching programmes & applicable for both AC & DC Switching. Suitable Switching Programmes * Isolators *Changeovers * Multistep Switches & * Gang Switches etc ( Refer Page 3 to 7 & 12 )
D16 - D63
D16 - D63
TYPE B1 B2 B3 D F SD16 48 12 5.5 50 64 12D25 / D32 48 12 5.5 50 64 15D40 / D63 68 15 5.5 70 64 21