Relay Units Help Keep Temperatures Under Control

These new 12-zone heater control modules are set to maintain constant temperature for multiple heaters. These compact units, measuring about the size of a razor blade, are capable of switching up to 1,200W. They can control up to 240V at 5A at an ambient temperature of up to 30°C. Designed to interface with a programmable logic controller, the relays can be controlled by 15V to 32V at 20 mA.