Liftmaster K25-2008 Overload Switch 8A Commercial Door Operators / Gate Openers
The LiftMaster K25-2008 is a replacement 8 amp overload switch used in select LiftMaster commercial door operators and gate operators. The overload device is part of the operator protection circuit and is intended to respond to excessive current conditions in equipment designed for this rating.
This part is commonly listed as 25-2008 and G252008. Broad catalog references describe it for various LiftMaster commercial door and gate operators, while some listings specifically connect it with BG790 barrier gate operator applications and selected older gate operators. Because overload parts are electrical protection components, the amperage rating and operator diagram must match before replacement.
Compatible With
Common Compatible Applications
- Select LiftMaster commercial door operators requiring an 8A overload identified as K25-2008 or 25-2008
- Select LiftMaster gate operators requiring an 8A overload identified as K25-2008 or G252008
- LiftMaster BG790 barrier gate operator applications where the parts diagram calls for K25-2008
Additional Operator References to Verify
- Older LiftMaster gate operator parts references that list 25-2008 8 amp overload hardware
- Selected SL, SW, BG, and commercial operator configurations only when the model parts diagram specifies the 8A overload
Important Compatibility Notes
- Do not replace an overload device by appearance only.
- The amp rating, voltage environment, wire terminals, and operator circuit must match.
- Do not substitute K25-2008 for 5.5-8A relay-style overloads or higher/lower amp devices unless the parts diagram specifically calls for it.
Features & Specifications
| Feature / Specification | Details |
|---|
| Manufacturer | LiftMaster |
| Product Type | Overload switch / overload protection component |
| Part Number | K25-2008 |
| Amperage Rating | 8A |
| Application | Select commercial door and gate operator electrical protection circuits |
| Compatible Operator Type | Select LiftMaster commercial door, gate, and barrier gate operators |
| Related References | 25-2008, G252008 |
| Notes | Match original amp rating and operator parts diagram before replacement |
Also Known As / Related Part Numbers
- K25-2008
- LM-K25-2008
- 25-2008
- G252008
- 25-2008_F
- LiftMaster 8A overload
- LiftMaster 8 amp overload switch
- LiftMaster K25-2008 overload switch
Technician Note
If an overload has tripped or failed repeatedly, look for the cause before replacing parts. Binding doors, stuck gates, incorrect voltage, failing motors, damaged wiring, or shorted components can overload the circuit and damage the replacement part.
Before Ordering
- Match K25-2008, 25-2008, or G252008 to the old part or operator diagram.
- Confirm the original device is rated 8A.
- Verify the operator model, voltage, phase, and horsepower requirements.
- Inspect the operator for binding, motor problems, or wiring damage before replacing the overload.
- Do not bypass the overload or install a different amp rating to keep the operator running.
Professional Advisory
This is an electrical protection component. Do not bypass overload protection or work inside a live operator cabinet. High-voltage diagnosis and repeated overload failures should be handled by a qualified gate or commercial door technician.
Product Questions & Answers
What does the K25-2008 overload switch do?
It provides 8 amp overload protection in select LiftMaster commercial door and gate operator circuits designed for this component.
What numbers are related to K25-2008?
Common related references include 25-2008 and G252008.
Is this overload used on BG790 barrier gate operators?
Some references list K25-2008 for LiftMaster BG790 barrier gate applications. Verify the exact parts diagram before ordering.
Can I replace an 8A overload with a different amp rating?
No. The amp rating must match the operator design and parts diagram. A wrong rating can create equipment damage or unsafe operation.
What should I check if the overload keeps failing?
Check for a binding door or gate, wrong voltage, motor issues, damaged wiring, shorted components, or excessive load. A technician should handle live electrical diagnosis.
