Liftmaster K23-10916 Interlock Switch 15A, 125/250VAC
The LiftMaster K23-10916 is a replacement interlock switch rated 15A at 125/250VAC. It is commonly used on select 3/4 HP LiftMaster commercial door operator applications where the operator parts diagram calls for this switch. The switch helps the control system confirm a specific interlock condition before allowing normal operation.
Switches in this family can look alike, but amperage rating, terminal configuration, mounting, actuator style, and operator function can differ. K23-10916 should not be substituted with a limit switch, stop switch, or lower-rated microswitch unless the parts diagram confirms the same part.
Typical replacement reasons include a broken switch lever, damaged terminals, failed continuity test, intermittent operator response, or a confirmed interlock circuit fault. Electrical troubleshooting should be done carefully because the switch may be tied into a powered control circuit.
Compatible With
Common Compatible Models and Applications
- Select 3/4 HP LiftMaster commercial door operators requiring K23-10916
- Commercial door operator interlock circuits that specify a 15A 125/250VAC SPDT switch
- LiftMaster commercial operator control assemblies when confirmed by parts diagram
Additional Model Families to Verify
- BMT, MJ, MH, and related commercial door operator references have appeared in some cross-reference listings, but must be verified by parts diagram
- Other 3/4 HP commercial door operators only when the original part number is K23-10916 or 23-10916
Important Compatibility Notes
- Match the switch by part number, rating, terminal layout, and actuator style.
- Do not replace a safety or interlock switch with a different amperage or configuration.
- Commercial door operator wiring should be serviced with power disconnected.
Features and Specifications
| Feature / Specification | Details |
|---|
| Manufacturer | LiftMaster |
| Product Type | Interlock switch |
| Part Number | K23-10916 |
| Electrical Rating | 15A, 125/250VAC |
| Switch Type | SPDT style interlock switch |
| Application | Commercial door operator interlock/control circuit |
| Compatible Operator Type | Select 3/4 HP LiftMaster commercial door operators |
| Notes | Verify terminal layout and parts diagram |
Also Known As / Related Part Numbers
- K23-10916
- 23-10916
- LM-K23-10916
- K23 10916
- 23 10916
- SPDT interlock switch 15A 125/250VAC
Technician Note
Before condemning the switch, test for proper mechanical actuation and continuity with power off. Intermittent symptoms can also come from loose terminals, misadjusted linkages, damaged wiring, or a control circuit issue.
Before Ordering
- Confirm the original part number is K23-10916 or 23-10916.
- Confirm the operator is a compatible 3/4 HP commercial door operator.
- Match the 15A 125/250VAC rating.
- Compare terminal count, common/normally open/normally closed layout, and actuator style.
- Do not bypass the interlock circuit to make the operator run.
Professional Advisory
Never bypass an interlock or control safety device. If the operator only works when a switch is jumped or defeated, stop and have the circuit diagnosed by a qualified commercial door technician.
Important Ordering Warnings
- Similar LiftMaster switches may have different ratings or functions.
- Do not confuse this interlock switch with K23-10041, K23-2016, or K23-30716 without checking the parts diagram.
Product Questions and Answers
Is K23-10916 a limit switch?
It is listed as an interlock switch, not a general replacement for every LiftMaster limit switch.
What is the electrical rating?
K23-10916 is rated 15A at 125/250VAC.
Can I bypass this switch if the operator will not run?
No. Do not bypass interlock or safety-related switches. The cause should be diagnosed and corrected.
What operators use K23-10916?
It is commonly listed for various 3/4 HP LiftMaster commercial door operators, but the exact model should be verified by parts diagram.
What should I compare before ordering?
Compare the part number, amperage rating, voltage rating, terminal layout, actuator style, and mounting position with the original switch.
