Seimens

3RU21

FEATURES

Siemens 3RU thermal overload relays are designed for the protection of three-phase and single phase AC and DC motors.
Siemens 3RU thermal overload relays up to 100 A are designed for current-dependent protection of applications with normal start-up conditions.

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3RB30

FEATURES

Overload Protection
Trip Class 5 to 30 settable
Thermistor motor protection
Phase failure protection
Phase unbalance protection
Large setting range (1:10)
Overload warning
LED indicationfacility
Analog Output (4-20mA)
Internal earth fault protection
Internal earth fault protection
Overload warning

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