Product Details
The MMTC 1MHC is an exterior mushroom-head control station for gate, door, and equipment control circuits that need a large momentary push button in a weather-resistant enclosure. The mushroom head is easier to hit than a small push button, making it useful at service doors, loading areas, parking gates, commercial door openings, and equipment stations where a clear manual command button is preferred. The 1MHC uses double-pole momentary contacts in a compact non-metallic enclosure, so it can be wired for applications that require more than one contact state or isolated control circuits. It is commonly used as an open, close, stop, hold-to-run, reset, or auxiliary command button depending on how the controller is wired. It is not a universal emergency-stop solution by itself; emergency-stop and safety circuits must be wired according to the operator manufacturer instructions and local code.
Compatible With
This control station is compatible by control-circuit design, not by brand name alone. Use it only when the operator or control panel supports the same button functions and contact style.
- Select automatic gate operators with low-voltage dry-contact command inputs
- Select commercial garage door, rolling door, rolling grille, and industrial door operators
- Exterior stations for service doors, loading docks, parking controls, barrier arms, and equipment controls
- Control circuits needing a large momentary mushroom-head push button
- Applications requiring double-pole contacts in a NEMA 3R/4/12 style exterior enclosure
Features and Specifications
| Manufacturer | MMTC |
| Product Type | Exterior mushroom-head push button control |
| Part Number | 1MHC |
| Application | Manual control station for gate, commercial door, overhead door, parking, or equipment-control circuits |
| Button Function | One red mushroom-head button |
| Contact Style | Momentary double-pole contacts |
| Enclosure / Mounting | NEMA 3R/4/12 style non-metallic exterior enclosure |
| Approximate Dimensions | Approx. 3-1/4 in H x 2-3/4 in W x 2-1/2 in D |
| Compatible Operator Type | Select operators or control panels with matching dry-contact control inputs |
| Included Components | Control station assembly only unless otherwise stated |
| Notes | Verify button function, stop-circuit logic, contact style, and wiring diagram before replacement |
Also Known As / Related Part Numbers
- 1MHC
- MMTC-1MHC
- 1 MHC
- MHC
- MMTC mushroom head control
- 1MHL
- 1MHD
- 1BXT
- NEMA 4 mushroom push button
Technician Note
This is a momentary-contact control. Do not substitute it for a maintained/latching mushroom button unless the controller specifically calls for momentary operation. These stations are typically wired to low-voltage or control-voltage terminals, but the actual circuit rating and wiring method must follow the operator manufacturer instructions.
Before Ordering Checklist
- Confirm the exact MMTC part number on the old station or parts list.
- Confirm the number of buttons and the intended button functions.
- Check whether the application is interior or exterior and whether the enclosure rating is appropriate.
- Match the contact style, including momentary, maintained, single-pole, double-pole, normally open, and normally closed requirements.
- Compare the enclosure footprint, conduit entry, and available mounting space.
- For any stop or emergency-stop circuit, verify the control logic before changing parts.
Professional Advisory
Do not use a push-button station to bypass monitored safety devices, entrapment protection, interlocks, or required stop circuits. If the operator moves unexpectedly, has damaged controls, or involves high-voltage wiring, have the system checked by a qualified gate or commercial door technician.
Questions and Answers
What is the MMTC 1MHC used for?
The MMTC 1MHC is used as a manual control-station device for compatible gate, commercial door, overhead door, parking, or equipment-control circuits. The exact button function depends on how the control station is wired to the operator or panel.
Is the MMTC 1MHC compatible with all gate and garage door operators?
No. It may be used with select operators that accept the same dry-contact input style, button count, enclosure type, and contact arrangement. Always match the wiring diagram and the original control-station function before ordering.
Can this control station be used as a safety device?
No. This is a manual command device. It is not a monitored photo eye, safety edge, loop detector, or entrapment protection device, and it should not be used to bypass required safety devices.
What should be checked before replacing an existing 1MHC?
Check the original part number, button labels, enclosure footprint, conduit entry, contact type, stop-circuit logic where applicable, and whether the operator expects normally open or normally closed control contacts.
Can a similar MMTC station with the same number of buttons be substituted?
Not automatically. Similar-looking MMTC stations may differ by enclosure material, NEMA rating, double-pole contact construction, latching versus momentary action, stop contact logic, or mounting footprint.
