GE 12HFA51A42H Multicontact Auxiliary Relay

Overview

The GE 12HFA51A42H is a high-performance multicontact auxiliary relay engineered for demanding industrial control systems. It belongs to the trusted HFA series and supports simultaneous switching of multiple circuits. With six independent contact circuits, users can configure them as normally open or normally closed. This design makes it reliable for protective relay schemes, automation panels, and coordinated control applications.

Technical Specifications

• Coil Voltage: 125 VDC

• Contact Configuration: 6 independent circuits, reversible between normally open and normally closed

• Contact Ratings:

• Closing Current: 30 A per contact

• Continuous Current: 12 A

• Short-Term Current: 30 A for 1 minute

• Operating Time:

• Standard DC model: ~5 cycles (60 Hz basis)

• Tripping duty: ~1 cycle with adjusted coil voltage

• Dropout Function: Instantaneous with automatic reset

• Mounting Options:

• Front-connected: surface mount only

• Back-connected: surface or semi-flush mount with steel flange

• Case Type: S2 draw-out case available

• Operating Temperature: –30°C to +65°C

• Type: Multicontact auxiliary relay, HFA type, self-reset

• Weight: 6.59 lbs