Product Details
The RIB® dry contact input relay RIB21CDC-N4 is an enclosed model with a pilot rating of NEMA 4/4X, designed for input voltages of 120-277VAC and capable of handling up to 10A with a Single Pole Double Throw (SPDT) configuration. This relay can be activated by various dry contacts, including thermostats, switches, other relays, and solid-state switches, utilizing low-voltage (Class 2) power for activation without the need for external power, allowing it to be self-powered by simply closing the dry-contact input. The energizing power can be supplied either through a separate pair of wires or from a nearby local power source. The relay contacts are isolated from the input power and dry contact input, enabling wiring to switch additional power loads or low-voltage loads, with contact ratings detailed in the specifications. The RIB21CDC model is versatile, operating over a voltage range of 120VAC to 277VAC, and specific input power requirements can be found in the specifications for other models. The product comes with a warranty of five years.








