MMTC CP-1SW NEMA 4 Exterior Ceiling Pull Switch with Rotating Pivoting Cam SPST
The MMTC CP-1SW is an exterior NEMA 4 ceiling pull switch with SPST contacts and a rotating/pivoting cam design. It is used when the pull cord may be pulled from different angles, such as near an overhead door, dock bay, warehouse opening, car wash lane, parking lane, or gate control point. The rotating and pivoting cam helps the switch respond more consistently than a basic fixed pull switch when operators or vehicles approach from slightly different positions. This makes it a better choice than a standard CP-1 when the rope is not always pulled straight down. It should be matched to a compatible single-circuit command input and installed so the pull cord has a clear path without interfering with moving doors, gates, vehicles, forklifts, or pedestrians.
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 commercial door operators, rolling door operators, gate operators, dock controls, parking systems, and industrial access-control panels with a compatible SPST dry-contact pull input. Commonly selected for exterior pull-cord installations where angled pull operation is expected. Verify whether the job requires SPST, DPST, rotating head only, heated operation, or explosion-proof construction. 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-1SW |
| 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 with rotating and pivoting cam |
| Enclosure / Rating | NEMA 4 exterior enclosure |
| Mounting Style | Ceiling pull / surface mount |
| Dimensions | Verify by current MMTC drawing before replacing |
| 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-1SW
- MMTC CP-1SW
- MMTC-CP-1SW
- CP1SW
- CP 1SW
- CP-1 SW
- SPST rotating pivoting cam pull switch
- NEMA 4 rotating pull switch
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
How is CP-1SW different from CP-1?
CP-1SW adds a rotating and pivoting cam to better handle angled pull-cord operation, while CP-1 is the simpler SPST pull switch.
Is CP-1SW the same as CP-2SW?
No. CP-1SW is SPST, while CP-2SW is the related DPST version. Match the contact type to the wiring diagram.
Where is a rotating/pivoting cam useful?
It is useful in ceiling pull applications where the rope may be pulled from different directions instead of straight down.
Can CP-1SW be used on a gate?
Yes, when the gate controller accepts the proper SPST dry-contact command and the installation is safe and code-compliant.
Does this switch control safety reversal?
No. It is a manual activation switch and should not be used as a substitute for monitored safety equipment.
