Details:
Oen India Ltd offers series 51 Relays for industrial controls and instrumentations. The relay incorporates a clearly visible mechanical indicator (flag indicator) by means of a LED in the coil circuit, such that input and output conditions are visible at a glance. The series 51 relay incorporate a test button, which when actuated simulates the operated position of the relay contacts and the mechanical flag indication becomes visible.

A special key is provided to activate the test button either instantaneously by just inserting the test key and taking it out or for long duration by turning the key and leaving it inserted in the relay. The size and colour of the key makes it foolproof so that it is virtually impossible to accidently leave the test function activated.

The contacts of the series 51 relay are rated for switching upto 440 VAC with a breaking capacity of 2500 VA and maximum current rating of 10 A. Gold plating is provided on the contacts optionally either when the contacts are to handle dry circuits/low level switching.