MMTC CP-1 NEMA 4 Exterior Ceiling Pull Switch SPST
The MMTC CP-1 is a NEMA 4 exterior ceiling pull switch for simple manual activation of a compatible door, gate, dock, or access-control input. It is commonly used where a pull cord is the easiest control method for forklifts, warehouse staff, service vehicles, guard stations, or industrial personnel moving through an opening. The SPST contact configuration is suited for one command circuit and should be matched to the operator control input. This basic CP-1 version does not include the rotating head or rotating/pivoting cam used on some MMTC ceiling pull models, so pull direction and mounting alignment matter. It is a practical replacement when the existing installation uses a standard SPST exterior pull station with the same enclosure style and wiring behavior.
Common Applications
- Automated driveway gate and commercial gate control stations
- Commercial overhead, rolling steel, and sectional door operator inputs
- Loading dock, warehouse, parking, and service-bay manual activation points
- Access-control interfaces where a keyed or pull-cord dry-contact command is required
- Exterior or damp-location installations when the enclosure rating matches the job
Compatible With
Select gate operators, commercial door operators, rolling door controls, dock equipment controls, parking control panels, and industrial access systems that accept a compatible SPST pull-station dry-contact input. Best matched to applications where a simple single-circuit pull command is required. Verify whether the original system uses SPST or DPST switching and whether a rotating head or angled-pull cam is needed. Compatible with commercial door operators, rolling steel door operators, sectional overhead door operators, automated gate operators, barrier gate controllers, loading dock controls, parking controls, and access-control panels when the control board accepts the same low-voltage dry-contact command and the enclosure style is suitable for the location. Verify the original wiring diagram, contact type, stop circuit requirements, mounting style, and enclosure rating before ordering.
Features and Specifications
| Manufacturer | MMTC |
| Product Type | Exterior ceiling pull switch |
| Part Number | CP-1 |
| Application | Manual keyed or pull-cord control for compatible gate, door, dock, parking, and access-control systems |
| Compatible Operator Type | Low-voltage control circuits that accept matching dry-contact input; verify wiring diagram |
| Operation | SPST pull switch |
| Enclosure / Rating | NEMA 4 exterior enclosure |
| Mounting Style | Ceiling pull / surface mount |
| Dimensions | Approx. 4 in. H x 3-3/4 in. W x 2-3/4 in. D |
| Included Components | Control station assembly only unless otherwise noted |
| Notes | Not an entrapment protection device; do not bypass required safety devices |
Also Known As / Related Part Numbers
Also known as or commonly searched as:
- CP-1
- MMTC CP-1
- MMTC-CP-1
- CP1
- CP 1
- NEMA 4 ceiling pull switch
- SPST ceiling pull switch
- CP-1B related rotating head version
- CP-1SW related rotating pivoting cam version
Technician Note
Control stations can look alike but behave differently electrically. Match the original contact action and wiring diagram before replacing a key switch or pull switch. A switch with the wrong contact type can cause no operation, unexpected operation, or a missing stop/control function.
Before Ordering Checklist
- Confirm the MMTC part number on the existing switch or job specification.
- Match SPST, DPST, open-close, center-return, heater, and mounting requirements before ordering.
- Verify the operator control board accepts the same dry-contact input and does not require a different station.
- Check enclosure rating, weather exposure, conduit entry, and mounting clearance.
- Do not remove or bypass photo eyes, safety edges, loop detectors, or other required safety devices.
Professional Advisory
Have a qualified gate or commercial door technician handle wiring when the circuit is not clearly identified, when heater power is involved, or when the operator has unsafe movement, missing safety devices, or line-voltage control wiring. This product is for manual command input only and should never be used to bypass monitored entrapment protection.
Product Questions and Answers
What is the CP-1 used for?
The CP-1 is used as a pull-cord activation switch for compatible gate, door, dock, and industrial control circuits.
Is the CP-1 a single-circuit switch?
Yes. The CP-1 is an SPST switch, commonly used where one dry-contact command circuit is needed.
Does the CP-1 have a rotating head?
No. If a rotating head is required, compare the CP-1B or CP-1SW depending on the pull-angle requirement.
Can CP-1 replace CP-2?
Not normally. CP-1 is SPST while CP-2 is DPST, so the wiring and circuit requirements are different.
Is CP-1 an entrapment safety device?
No. It is a manual control switch only and does not replace required monitored safety devices.
