LiftMaster MA201 Thermostat Control Heater & Plate
The LiftMaster MA201 is a thermostat-controlled heater plate used inside compatible LiftMaster commercial gate operator control enclosures. It helps keep the enclosure temperature above freezing in cold climates, reducing moisture and cold-weather issues that can affect control boards, relays, wiring, and other electronics. Public references list it as a 150W heater for MSL, MA, and MAS operator applications.
MA201 is commonly associated with Mega Arm, Mega Arm Sprint, Mega Slide, and related commercial access-control operator families, but it should be verified by exact model and enclosure style. It is different from UN201, which is associated with larger MAT/MAST tower style applications, and different from HTR/HTRNB/HTR460 frame-mounted heater kits. Use the parts diagram and installation manual before substituting heater assemblies.
Compatible With
- LiftMaster MSL gate operator applications where MA201 is specified
- LiftMaster MA operator applications where MA201 is specified
- LiftMaster MAS operator applications where MA201 is specified
- Mega Arm and Mega Arm Sprint style control enclosures when the parts diagram calls for MA201
- Mega Slide style applications where MSL compatibility is confirmed
- Cold-weather control enclosure heating applications below 32 degrees F
Also Known As / Related Part Numbers
- MA201
- LiftMaster thermostat control heater and plate
- LiftMaster 150W heater plate
- Mega Arm heater plate
- MSL heater plate
- Related UN201 heater plate - MAT/MAST applications, verify before substitution
- Related HTR, HTRNB, and HTR460 heater kits - different operator families
Features & Specifications
| Manufacturer | LiftMaster |
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| Product Type | Thermostat control heater and plate |
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| Part Number | MA201 |
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| Power Rating | 150W |
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| Application | Control enclosure heating for compatible commercial gate operators |
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| Compatible Operator Type | MSL, MA, and MAS operator families where specified |
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| Temperature Notes | Commonly listed for use below 32 degrees F |
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| Mounting | Mounts inside compatible control enclosure using the heater plate layout |
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| Notes | Not the same as UN201, HTR, HTRNB, or HTR460 |
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Technician Note
MA201 is a control-enclosure heater plate, not a universal gate heater. Match the plate layout and operator family before ordering, especially on Mega Arm, Mega Arm Tower, Mega Sprint, and Mega Slide systems.
Before Ordering Checklist
- Confirm the operator family is MSL, MA, or MAS.
- Verify the enclosure has the correct mounting layout for MA201.
- Confirm the site power and heater rating.
- Do not substitute UN201, HTR, HTRNB, or HTR460 without manual confirmation.
- Have a qualified technician install and test the heater wiring.
Professional Advisory
Heater plates use powered electrical wiring inside the control enclosure. Disconnect power before service and have a qualified gate technician perform installation where line voltage is present.
Product Q&A
What operators is MA201 commonly used with?
MA201 is commonly listed for LiftMaster MSL, MA, and MAS operator families.
What is the wattage of MA201?
MA201 is commonly listed as a 150W thermostat control heater and plate.
Is MA201 the same as UN201?
No. UN201 is a different heater plate commonly associated with MAT/MAST tower applications.
When does the heater help?
It helps in cold environments, especially where temperatures fall below 32 degrees F and control components need enclosure heat.
Can MA201 be installed without verifying the operator?
No. The operator family, enclosure layout, and parts diagram should be verified before ordering or installing it.
