24v relays for sale, brand-new and used.

Schlage Electronics PS904 4-Amp Class 2 Power Supply with 4-Relay Output Board and Fire Alarm Interface Board, 12/24VDC Output, 120/240VAC at 50/60 Hz Input

Up for auction we have a very large industrial quality Heatsink assembly. As you can see from the pictures the top is removable. It is also very very light.

AUBE RC840T-240 On/Off Switching Electric Heating Relay with Built-in 24 V Transformer This is the greatest thing since sliced bread! Put it in a circuit where you want to operate a line voltage (208v to 240v) resistance heater with a low voltage thermostat, and - voila - you have the 24v power for the thermostat and the relay switch to operate it. Plays nice with Wi-Fi and programmable thermostats, too!

This listing is for a NEW Honeywell Modutrol Motor, Cat. No. M945A1017 1 Amp, 50/60 Hz, Proportional Action, 60 Second Timing, 160° St

This is a 16 beam infrared intruder detection system consisting of four transmitters, four receivers, and the associated electronics, alignment aids, instructions Etc.  It has a range of 10-25 meters (about 33-82 feet).  It does not include the required mounting towers, which are readily available online, or could easily be fabricated.

Securitron AQD6-8F8R Proprietary Power Supply - Power Supply 6A, 12/24VDC, 8 Fused Outputs, Relays, FT 120 V AC, 230 V AC Input Voltage 12 V DC, 24 V DC Output Voltage External 90% Efficien

Rugged Industrial Relay Board The IR104 is a PC104 rugged industrial relay module featuring 20 optoisolated digital inputs and 20 relay outputs, sufficient for many industrial control applications. Each input can accept either AC or DC voltages with a range of 3-24V and are accessed through a 40-pin header that mates with a standard ribbon cable.