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VTR51K, from 0.11 to 14 A

● Overload protection and phase-failure protection.
● Implementing short-circuit protection by means of a fuse or circuit breaker.
● Used for the protection of motors.
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Techinical specifications for assembled thermal relay of type VC51K

  • Type: VTR51K

  • Standard: IEC 60947-4-1

  • Tripping class: 10 A

  • Number of connecting pin: 4

  • Rated operational voltage Ue (V): up to 690

  • Rated insulation voltage Ui (V): 690

  • Rated impulse withstand voltage Uimp (kV): 6

  • Rated current range In (A):

0.11-0.16, 0.16-0.23,

0.23-0.36, 0.36-0.54,

0.54-0.8, 0.8-1.2,

1.8-2.6, 2.6-3.7,

3.7-5.5, 5-8,

8-11.5, 10-14

  • Signalling: Trip indicator

  • Tightening torque (N·m): 0.8

  • Degree of protection: IP20

  • Ambient air temperature (ºC): -5 to +40, max. 95 % humidity

  • Storage temperature (ºC): -40 ~ +75

  • Maximum operating altitude (meters): 2000

  • Flame resistance: V1

  • Mounting: directly under the contactor




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VTR51K Thermal Overload Relay
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