Keep a close watch on electrical faults with this monitoring relay from ABB. Designed for use with a 3-phase machine, this handy device monitors the phase sequence of the circuit, detecting failure and unbalance. You can adjust the ON-delay between 0 and 30s, programming the unit to trip instantly or after a set period. It's a cinch to install as it simply snaps onto a DIN rail, removing the need for any tools.

• Mechanical durability of 30 million cycles for long-term performance
• Mountable in any position for flexible assembly
• Repeat accuracy of

• Conveyor belts
• Laboratories
• Security devices
• Traffic management systems

This monitoring relay has a voltage measuring range between 300 and 500V AC, so you can adjust it to track multiple voltage conditions.

Thanks to the built-in LED indicators that show its operating status, you can quickly tell if this relay senses an electrical fault.