LiftMaster K23-10041 SPDT 10A Limit Switch for Select 1/2 HP Commercial Door and Gate Operators
The LiftMaster K23-10041 is a limit switch replacement kit used to control travel-stop signaling in compatible commercial operators. In a door or gate operator, the limit switch tells the control circuit when the moving system has reached the open or close limit. A worn or damaged limit switch can cause erratic stopping, failure to stop, short cycling, limit faults, or operator over-travel.
This part is commonly described as an SPDT limit switch rated 10A at 125/250VAC. That contact arrangement matters. LiftMaster and supplier references also list similar numbers such as K23-10041-1, but those may refer to a DPDT or stacked switch style and should not be substituted without checking the diagram. Always compare the existing switch and the operator parts breakdown.
Compatible With / Common Applications
Commonly associated with the following applications when the parts diagram calls for K23-10041 or one of its related numbers:
- Select 1/2 HP LiftMaster commercial door operators
- LiftMaster H commercial operator references where listed
- LiftMaster LGO operator references where listed
- SL575GL slide gate operator references where listed
- SL585GL and SL595GL slide gate operator references where listed
- SL585U and SL585UL operator references where listed
- Commercial sectional, rolling, or gate operator limit circuits using a 10A SPDT 125/250VAC switch by diagram
Features and Specifications
| Feature / Specification | Details |
|---|
| Manufacturer | LiftMaster |
| Product Type | Limit switch replacement kit |
| Part Number | K23-10041 |
| Switch Type | SPDT |
| Current Rating | 10A |
| Voltage Rating | 125/250VAC |
| Application | Travel limit control |
| Compatible Operator Type | Select 1/2 HP commercial door operators and listed gate operators |
| Related Version | K23-10041-1 DPDT version is separate and should be verified |
| Notes | Match contact arrangement, terminals, actuator, and mounting |
Also Known As / Related Part Numbers
- K23-10041
- K23-LMTGATE
- 23-10041
- 2310041
- 23-10041-3A
- 450230
- MG4101300
- LiftMaster SPDT limit switch
- 10A 125/250VAC limit switch
Technician Note
SPDT and DPDT limit switches are not the same. If the original switch is stacked, double-pole, or has a different terminal layout, verify whether K23-10041-1 or another switch is required instead.
Before Ordering Checklist
- Confirm the old part number or operator diagram calls for K23-10041
- Check whether the switch is SPDT or DPDT
- Match 10A 125/250VAC rating and terminal layout
- Verify mounting holes, actuator lever, and bracket orientation
- Adjust and test open/close limit operation after replacement
Professional Advisory
Limit switch replacement may involve live voltage and moving door or gate equipment. Disconnect power before service and use a qualified technician if testing or adjustment cannot be done safely.
Product Questions and Answers
What is the contact type for K23-10041?
K23-10041 is commonly listed as an SPDT limit switch rated 10A at 125/250VAC.
Is K23-10041-1 the same as K23-10041?
No. K23-10041-1 is commonly described as a DPDT or stacked version and should be verified separately before substitution.
Which operators commonly use K23-10041?
It is used on select 1/2 HP LiftMaster commercial door operators and is also listed for certain H, LGO, SL575GL, SL585GL, SL595GL, SL585U, and SL585UL references.
What symptoms can a bad limit switch cause?
It can cause over-travel, failure to stop, short travel, intermittent stopping, or limit-related operator faults.
Can I install this switch without adjusting limits?
The operator limits should be checked and tested after replacement to make sure open and close stopping positions are correct.
