LiftMaster K24-115-1 120V 10A DPDT Relay Replacement Kit for Mechanical Commercial Operators
The LiftMaster K24-115-1 is a relay replacement kit used in select mechanical commercial door operators and related LiftMaster operator control circuits. A relay acts as an electrically operated switch, allowing one part of the control circuit to energize or interrupt another circuit. When a relay fails, the operator may not respond, may not switch direction correctly, may chatter, or may show intermittent control behavior.
This relay is rated 120V and 10A and is commonly described as a DPDT relay. It uses a multi-tab connection style that must match the operator socket or wiring diagram. Because several relays can look similar but differ in coil voltage, contact rating, contact arrangement, and terminal layout, it should be ordered by the exact part number and schematic reference.
Compatible With / Common Applications
Commonly associated with the following applications when the wiring diagram calls for K24-115-1 or 24-115-1:
- Select LiftMaster mechanical commercial door operators
- Mechanical and industrial operator relay-control circuits requiring a 120V 10A DPDT relay
- LiftMaster BG790 industrial barrier gate references where listed
- LiftMaster SW490 swing gate references where listed
- Applications using the 24-115-1 / 241151 / 241152 relay path
- Operators with matching relay socket, coil voltage, and contact arrangement
Features and Specifications
| Feature / Specification | Details |
|---|
| Manufacturer | LiftMaster |
| Product Type | Relay replacement kit |
| Part Number | K24-115-1 |
| Relay Type | DPDT |
| Voltage Rating | 120V |
| Current Rating | 10A |
| Application | Mechanical commercial operator control circuit |
| Compatible Operator Type | Select commercial door and gate operators by wiring diagram |
| Connection Style | Commonly described with eight external socket tabs |
| Notes | Match coil voltage and contact arrangement before installing |
Also Known As / Related Part Numbers
- K24-115-1
- 24-115-1
- G241151
- G241152
- 241151
- 241152
- 2411502
- 6002296
- AB117-00193
- 160B83
- 120V 10A DPDT relay
Technician Note
Relay symptoms can be caused by bad control voltage, a failed limit circuit, a welded contact, or a shorted load. Confirm the circuit problem before replacing the relay.
Before Ordering Checklist
- Confirm the wiring diagram calls for K24-115-1 or 24-115-1
- Match 120V coil/rating and DPDT contact arrangement
- Check the relay socket or terminal connections before ordering
- Inspect for shorted loads, damaged wiring, and failed limit switches
- Test the operator through a full cycle after replacement
Professional Advisory
This relay may be part of a line-voltage control circuit. A qualified commercial door or gate technician should perform diagnosis and replacement when voltage testing or rewiring is required.
Product Questions and Answers
What type of relay is K24-115-1?
It is commonly listed as a 120V, 10A DPDT relay replacement kit.
Is K24-115-1 used only on garage door operators?
No. It is mainly listed for mechanical commercial door operators, and some supplier references also list BG790 and SW490 gate operator applications.
Are 24-115-1 and K24-115-1 the same part path?
Yes. 24-115-1 is a common related reference for the K24-115-1 relay kit.
Can I match this relay by shape?
No. Match the part number, coil voltage, contact rating, and terminal layout. Similar-looking relays may not be interchangeable.
What can cause a new relay to fail?
Shorted wiring, a stuck load, wrong voltage, failed limit circuit, or incorrect installation can damage a replacement relay.
