Page 167 - contactors_motor_protection_for_rolling_stock_application

VM4, VEM4 Interlocks

Connection with standard ferrules
Technical data

Mechanical interlock unit
Contact utilization characteristics according to IEC
Types VM4 VM19, VM140/190, VM205/265
Mechanical durability Number of operating cycles 5 millions operating cycles 1 million operating cycles 2
Max. mechanical switching frequency 1800 cycles/h 300 cycles/h

Mechanical and electrical interlock set

Contact utilization characteristics according to IEC
Types VEM4
Standards IEC 60947-5-1 and EN 60947-5-1
Rated insulation voltage Ui acc. to IEC 60947-5-1 690 V
Rated impulse withstand voltage Uimp 6 kV
Rated control voltage Uc
DC control voltage 20...500 V DC
Conventional thermal current Ith - θ ≤ 40 °C 16 A
Mechanical durability Number of operating cycles 5 millions operating cycles
Max. mechanical switching frequency 1800 cycles/h
Electrical durability Max. electrical switching frequency 1200 cycles/h

Contact utilization characteristics according to UL / CSA
Types VEM4
Standards UL 508, CSA C22.2 N°14
Max. operational voltage 500 V AC, 500 V DC

Connecting characteristics
Types VEM4
Connection capacity (min. ... max.)
Rigid solid 1 x 1...2.5 mm²
2 x 1...2.5 mm²
Flexible with non insulated ferrule 1 x 0.75...2.5 mm²
2 x 0.75...2.5 mm²
Flexible with insulated ferrule 1 x 0.75...2.5 mm²
2 x 0.75...1.5 mm²
L Lugs L < 8 mm
6
Connection capacity acc. to UL/CSA 1 or 2 x AWG 18...14
Stripping length 10 mm
Tightening torque 1.2 Nm / 11 lb.in
Degree of protection
acc. to IEC 60947-1 / EN 60947-1 and IEC 60529 / EN 60529 IP20
Screw terminals Delivered in open position, screws of unused terminals must be tightened
All terminals M3.5
Screwdriver type Flat Ø 5.5 / Pozidriv 2

1SBC101809S0201 - Rev. A

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