Siemens 3RB31334WB0 20-80A Solid State Overload Relay

Siemens 3RB31334WB0 Overload Relay

The Siemens 3RB31334WB0 is a solid-state overload relay that protects motors from overheating, phase failure, and unbalance. It supports motor currents from 20 to 80 amps and is designed for direct mounting to Siemens contactors. It includes both manual and automatic reset options, plus 1 NO + 1 NC auxiliary contacts.

Key Specs:

Current Range: 20 – 80 A

Reset Type: Manual or Automatic

Aux Contacts: 1 Normally Open + 1 Normally Closed

Mounting: For Siemens contactors (screw terminals)

Power Rating: Up to 75 kW

Protection Rating: IP20

Operating Temp: –25°C to +60°C

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