Functional Devices RIB2401D-N4 Relay 318423-701 Signs of failure include water

Signs of failure include water pooling around the furnace base

including the F400B-33 and F400-33 series

This specific model is a standard double-wire ear mount designed to secure the motor circumference

For models with visual indicators

Functional Devices RIB2401D-N4 Relay 318423-701 Signs of failure include waterThe Functional Devices RIB2401D N4 is a NEMA 4 rated enclosed relay designed for demanding building automation and industrial control applications. This DPDT dry contact relay features a 24Vac dc or 120Vac coil input, providing versatile integration for HVACR sequencers and panel logic. With a 10 Amp contact rating, this pilot relay is built to handle inductive and resistive loads in environments where moisture, dust, or outdoor exposure is a concern.