Contactors LTNS line Applications Transit and railway systems Control of cranes Mining equipment Renewable energy Rolling mills Microelettrica Scientifica LTNS series have been developed to answer to the constantly increasing market need of reduced dimensions and weight, taking most of the huge know-how in designing and manufacturing of industrial bar mounted contactors. These contactors have been designed starting from the N series electric arc management concept, grafted on the light and compact structure of a rail unit, developed around the control electromagnet. The LTNS contactors, characterised by a nominal voltage of 750V, are available in a wide range of current ratings, from 80A up to 1300A (up to 3 poles). They can be configured in any combination of Normally Open or Normally Closed poles, with a common rating. They have been designed and tested according to the international standard IEC 60947-4-1 and are suitable for almost any industrial low voltage application, such as: cranes, rolling mills, electric energy production and transformation, photovoltaic panels, induction furnaces, galvanic treatments. • The extra heavy duty flexible line, up to 1000VDC/AC application, up to 1500A/pole • Stationary application only, derived from LTHS line • 1-2-3 pole configuration, NO and NC poles indirect or direct arc blow out options available • Flexible control and auxiliary contacts options, high unit customization possible General Characteristics
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LTNS line - 上海方逸自动化仪表有限公司 ... · Microelettrica Scientifica LTNS series have been developed to answer to the constantly ... LTNS 320 320 750 1000 105-277
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C o n t a c t o r s
LTNS lineApplications
Transit and railway systems
Control of cranes
Mining equipment
Renewable energy
Rolling mills
Microelettrica Scientifica LTNS series have been developed to answer to the constantlyincreasing market need of reduced dimensions and weight, taking most of the huge know-how in designing and manufacturing of industrial bar mounted contactors.These contactors have been designed starting from the N series electric arc managementconcept, grafted on the light and compact structure of a rail unit, developed around the control electromagnet.The LTNS contactors, characterised by a nominal voltage of 750V, are available in a wide range of current ratings, from 80A up to 1300A (up to 3 poles). They can be configured in any combination of Normally Open or Normally Closed poles, with a common rating.They have been designed and tested according to the international standard IEC 60947-4-1and are suitable for almost any industrial low voltage application, such as: cranes, rolling mills,electric energy production and transformation, photovoltaic panels, induction furnaces,galvanic treatments.
• The extra heavy duty flexible line, up to 1000VDC/AC application, up to 1500A/pole• Stationary application only, derived from LTHS line• 1-2-3 pole configuration, NO and NC poles indirect or direct arc blow out options available• Flexible control and auxiliary contacts options, high unit customization possible
* For details please refer to dedicated technical note
LTHS800
1 NO
Horizontal - Vertical
12 ÷ 220
Max 4x(1 NO + 1 NC or 2 NO)
SK - SL - LP - RK
Ceramic
S6
Description
Contactor with single interruption in air, electromagnetic control by full power coil. Single state functioning.
Reference Standard IEC 60077.
Electrical CharacteristicsRated Operational Voltage [Vac / Vdc]Max Operational Voltage [Vac / Vdc]Rated Insulation Voltage [V]Conventional Free Air Thermal Current [A] at 75°CDC-Rated Operational Current (τ=15ms) [A]
Component Category / Operational Frequency ClassShort Circuit Withstand Capacity for 5ms [kA]Critical Current Range [A]Fault Making Capacity [kA]Blow Out Circuit Type
Minimum clearancesfrom metal parts [mm]X = 300; Y = 80 ; Z = 40
150020002000800
11002200
18003600
22004500
A2 / C312
None7,2
Indirect with arcing contact
Mechanical CharacteristicsMechanical Endurance (cycles)Shock and Vibrations (IEC61373)Weight [kg]
Auxiliary ContactsTips materialRated Operational Voltage [Vac / Vdc]Rated Current [A]Minimum Switching Current at 16Vdc [mA]Electrical Connections
Environmental ConditionsStock Temperature RangeOperational Temperature RangePollution Degree - Overvoltage Category (EN 50124-1)Max Altitude without Performance Derating [m]
LTHS08001*A03
Control CircuitControl Voltage RangePower Consumption (Uc and T = 20°C) at Pick Up - when Holding [W]Mechanical Operation Time (Uc and T = 20°C) when Closing - Opening [ms]Time Constant (L/R) at Pick Up - when Holding [ms]Electrical Connections
* For details please refer to dedicated technical note
LTHS 1500
1 NO
Horizontal - Vertical
24 ÷ 220
Max 4x(1 NO + 1 NC or 2 NO)
SK - SL - LP - RK
Ceramic
S4 - S6
Description
Contactor with single interruption in air, electromagnetic control by full power coil. Single state functioning.
Reference Standard IEC 60077.
Electrical CharacteristicsRated Operational Voltage [Vac / Vdc]Max Operational Voltage [Vac / Vdc]Rated Insulation Voltage [V]Conventional Free Air Thermal Current [A] at 75°CDC-Rated Operational Current (τ=15ms) [A]
Component Category / Operational Frequency ClassShort Circuit Withstand Capacity for 5ms [kA]Critical Current Range [A]Fault Making Capacity [kA]Blow Out Circuit Type
Minimum clearancesfrom metal parts [mm]X = 300; Y = 80 ; Z = 40
1500200020001250
11002200
18003600
22004500A2 / C316
< 50 (U > 1500Vdc)9.6
Indirect
Mechanical CharacteristicsMechanical Endurance (cycles)Shock and Vibrations (IEC61373)Weight [kg]
Auxiliary ContactsTips materialRated Operational Voltage [Vac / Vdc]Rated Current [A]Minimum Switching Current at 16Vdc [mA]Electrical Connections
Environmental ConditionsStock Temperature RangeOperational Temperature RangePollution Degree - Overvoltage Category (EN 50124-1)Max Altitude without Performance Derating [m]
LTHS15001*A01
Control CircuitControl Voltage RangePower Consumption (Uc and T = 20°C) at Pick Up - when Holding [W]Mechanical Operation Time (Uc and T = 20°C) when Closing - Opening [ms]Time Constant (L/R) at Pick Up - when Holding [ms]Electrical Connections
Short Circuit Withstand Capacity for 5ms [kA]Critical Current Range [A]Fault Making Capacity [kA]Component Category / Operational Frequency ClassBlow Out Circuit Type
Minimum clearances from metal parts [mm]X = 80; Y = 420 ; Z =30
1500 2000 2000
1250 2300
2600 15505200 3100
3200 19506400 3900
3600 21007200 4200
16 24<30 at 1500Vdc <50 at 1500Vdc
9.6 14.4A2 / C3Indirect
LTHS15002*A01
Mechanical Characteristics
Mechanical Endurance (cycles)Shock and Vibrations (IEC61373)Weight [kg]
Auxiliary Contacts
Tips materialRated Operational Voltage [Vac / Vdc]Rated Current [A]Minimum Switching Current at 16Vdc [mA]Electrical Connections
Environmental Conditions
Stock Temperature RangeOperational Temperature RangePollution Degree - Overvoltage Category (EN 50124-1)Max Altitude without Performance Derating [m]
Control Circuit
Control Voltage RangePower Consumption (Uc and T = 20°C) at Pick Up - when Holding [W]Mechanical Operation Time (Uc and T = 20°C) when Closing - Opening [ms] Time Constant (L/R) at Pick Up - when Holding [ms] Electrical Connections