Relay Circuit Unit (Contact Annunciator), Operation: Lock-in, Alarm: NO, Without auxiliary contacts, 24 VAC

Relay Circuit Unit (Contact Annunciator), Operation: Lock-in, Alarm: NO, Without auxiliary contacts, With fault recovery reset confirmation circuit, 100/110 VAC

Relay Circuit Unit (Contact Annunciator), Operation: Lock-in, Alarm: NO, Without auxiliary contacts, With fault recovery reset confirmation circuit, 200/220 VAC

Relay Circuit Unit (Contact Annunciator), Operation: Lock-in, Alarm: NO, Without auxiliary contacts, With fault recovery reset confirmation circuit, 24 VAC

Relay Circuit Unit (Contact Annunciator), Operation: Lock-in, Alarm: NO, With auxiliary contacts, 100/110 VAC

Relay Circuit Unit (Contact Annunciator), Operation: Lock-in, Alarm: NO, With auxiliary contacts, 200/220 VAC

Relay Circuit Unit (Contact Annunciator), Operation: Lock-in, Alarm: NO, With auxiliary contacts, 24 VAC

Relay Circuit Unit (Contact Annunciator), Operation: Lock-in, Alarm: NC, 100/110 VAC

Relay Circuit Unit (Contact Annunciator), Operation: Lock-in, Alarm: NC, Without auxiliary contacts, 200/220 VAC

Relay Circuit Unit (Contact Annunciator), Operation: Lock-in, Alarm: NC, Without auxiliary contacts, With fault recovery reset confirmation circuit, 100/110 VAC