Liftmaster LA500HDTKITSTD Toroidal Power Supply Kit for Standard Control Box for The LA500 Swing Gate Operators Opener
The LiftMaster LA500HDTKITSTD toroidal power supply kit is used with LA500 swing gate operator systems that use the standard control box and are configured for the heavier-duty toroidal transformer option. In practical field use, this kit is selected when a property needs stronger charging and power support than a basic low-use configuration, especially on frequently operated swing gates or installations exposed to demanding weather. The toroidal transformer helps provide efficient, stable power for the compatible LA500 control system, but it is not a universal LA400, LA412, RSW, or commercial swing gate power kit. Correct fitment depends on the LA500 control box style, firmware level, voltage input, and operator layout. Because the kit involves line-voltage power and control-board connections, installation should be handled carefully with power disconnected and all safety accessories left in service.
Features and Specifications
| Manufacturer | LiftMaster |
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| Product Type | Toroidal power supply kit |
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| Part Number | LA500HDTKITSTD |
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| Application | LA500 swing gate operator power upgrade/service |
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| Compatible Operator Type | LA500 standard control box systems |
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| Input Voltage | 120 VAC / 240 VAC dual-voltage capable where configured correctly |
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| Firmware Requirement | Published guidance notes firmware 5.1 or higher |
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| Notes | Standard control box version; not the large metal control box version |
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Compatible With
- LiftMaster LA500 swing gate operators using the standard control box
- LA500 primary control-box installations where firmware and wiring support the toroidal transformer kit
- Select LA500 dual-gate systems when the primary control box and instructions call for LA500HDTKITSTD
- Not intended for LA400, LA412, RSW12, CSW24, LA500 large metal control box versions, or unrelated gate operators unless the manual specifically calls for this kit
Also Known As / Related Part Numbers
- LA500HDTKITSTD
- LA500 HDT Kit Standard
- LA500 toroidal transformer kit standard control box
- LA500 heavy-duty transformer kit
- LA500 standard control box toroid
Technician Note
Before ordering, confirm the control box style. The STD version is for the standard LA500 control box; installations using a large metal control box may require a different kit/version.
Before Ordering
- Verify the operator is a LiftMaster LA500 system.
- Confirm standard control box, not large metal control box.
- Check control board firmware version; published instructions reference version 5.1 or higher.
- Confirm site input voltage and electrical supply requirements.
- Inspect batteries, fuses, grounding, and surge protection before installing power components.
Professional Advisory
This is a line-voltage gate operator power component. A qualified gate technician or electrician should install and test the kit, especially on dual-gate systems or sites with power-quality problems.
Important Ordering Warnings
- Do not install this kit on an unsupported firmware version.
- Do not use it as a universal transformer for other LiftMaster swing gate families.
- Do not bypass fuses, safety devices, or monitored entrapment protection during installation.
Product Questions and Answers
What does LA500HDTKITSTD do?
It provides the toroidal power supply kit for compatible LA500 swing gate operators using the standard control box.
Does this fit every LA500 system?
No. The control box style and firmware matter. Published instructions reference firmware version 5.1 or higher.
Is this the kit for the large metal control box?
No. LA500HDTKITSTD is written for the standard control box. Large metal control box installations may require a different version.
Can this be installed on LA400 or LA412 operators?
No. It should not be used on LA400 or LA412 systems unless LiftMaster documentation specifically calls for it, which is not the normal application.
Who should install this power kit?
A qualified gate technician should install it because it involves line-voltage power, control-board wiring, and post-installation system testing.
