Description
The Littelfuse ORB120A25 is a 120V delay-on-break time delay relay designed for control and automation applications that require delayed de-energization after a trigger signal is removed. It provides reliable timing for industrial, HVAC, and equipment control systems. The relay allows the output to stay energized for a set time after the initiate switch opens, protecting equipment and ensuring safe operation.
Key Features:
- Delay-on-break function: output de-energizes after timing delay
- Input voltage: 120 VAC
- Adjustable time delay range: approximately 3–300 seconds
- SPDT or DPDT isolated output contacts
- Contact rating: 10 A resistive at 120/240 VAC and 28 V DC
- Surface mount design with quick connect terminals
- Ideal for control circuits, motor starters, pumps, heaters, alarms, and safety interlocks






