The BC7933N series Time Relay ranges between 0.05 seconds and 10 hours. It features thermoplastic with V0 behaviour according to UL subject 94 housing, the control input operated with nominal voltage, no voltage free contact necessary and 1 changeover contact. The relay needs a supply voltage continuously connected to A1 to A2. At relays with auxiliary supply <180VAC the control input must not be operated before the auxiliary supply is present for at least 150ms. In this case also the recovery time after time delay is 150ms.
