MMTC CP-2B NEMA 4 Exterior Ceiling Pull Switch with Rotating Head DPST
The MMTC CP-2B is the DPST rotating-head version of MMTCs exterior ceiling pull switch. It is selected when the installation requires a pull-cord station with two switched poles and a rotating head for more flexible cord routing or switch orientation. This type of switch is commonly seen in commercial door, industrial door, dock, parking, and gate-control applications where the operator wiring calls for a DPST pull station instead of a basic SPST switch. The outside appearance can be similar to other MMTC ceiling pull models, so matching the part number and contact configuration is important. The CP-2B is a command device only. It should be wired according to the operator diagram and should not be used to bypass or replace required monitored safety equipment.
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 overhead door operators, rolling door controllers, gate operators, dock equipment controls, parking systems, and industrial access panels that require a compatible DPST dry-contact pull input. Use where the job calls for a rotating-head DPST ceiling pull switch. Verify CP-2B vs CP-1B, CP-2, CP-2SW, and any heater or explosion-proof requirements before ordering. 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-2B |
| 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 | DPST pull switch with rotating head |
| 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-2B
- MMTC CP-2B
- MMTC-CP-2B
- CP2B
- CP 2B
- DPST rotating head pull switch
- NEMA 4 DPST rotating head ceiling 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
What is the CP-2B used for?
The CP-2B is used as a rotating-head DPST ceiling pull switch for compatible commercial door, gate, dock, parking, and industrial control circuits.
How is CP-2B different from CP-1B?
CP-2B is DPST, while CP-1B is SPST. The operator wiring diagram determines which one is correct.
Does CP-2B have a rotating/pivoting cam?
It is listed as a rotating-head model. If the job requires the rotating and pivoting cam style, compare the CP-2SW family.
Can CP-2B replace a standard CP-2?
Only if the DPST contact requirement matches and the rotating-head enclosure style fits the installation.
Does CP-2B provide monitored safety protection?
No. It is a manual command switch, not a monitored safety sensor or entrapment protection device.
