Diligent Ac Relays

These Diligent AC relays are available for Over Load (OL), Single Phasing (SP), Phase Reversal (PR), etc. The overload relays are available in 1ph and 3ph types. 1ph-relays are useful on single phase load and can also used as economical solution for 3 ph applications whenever load is balanced. These are classified depending on the response to the overload condition and the classification is as follows -
a c INStantaneous (INS) type. In this relay changes the state as soon as overload occurs.
a c Time-Delayed (DLY) type. In this the relay changes the state only after elapse of present period from the time overload occurred & stayed.
a c Jam (JAM) type. In this, the control relay does not respond to the overload condition for a preset time from switching on the load but after elapse of this time, the relay responds immediately to any overload.