Page 559 - Motor_protection_and_control_Manual_motor_starters_ contactors

Interlocks

Technical data

Mechanical interlock unit

Types VM4, VM96 VM19 ... VM750 VM1650H
Mechanical durability Number of operating cycles 5 millions operating cycles 1 million operating cycles 500 000 operating cycles
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 5
Rated control circuit voltage Uc
AC 50/60 Hz control voltage 24...500 V AC
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 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 IP20
acc. to IEC 60947-1 / EN 60947-1 and IEC 60529 / EN 60529
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

1SBC101594S0201 - Rev. A

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