Product Description
The MMTC 1KFX is a NEMA 4-rated exterior tamperproof key switch designed for flush mounting on outdoor gate posts, pillars, or access control panels. Its weatherproof enclosure seals against windblown dust and rain, making it suitable for residential and commercial exterior installations. The base model features a standard cylinder with two-position open-close operation and spring center return - delivering momentary open and close commands with no integrated stop function. The tamperproof faceplate deters vandalism, and the back box (3-3/4" x 3-3/4") installs in a surface cutout for a clean, flush finished appearance.
Key Features
- NEMA 4 weatherproof enclosure rated for exterior and outdoor installations
- Two-position Open/Close operation with spring center-return for momentary actuation
- Tamperproof design deters unauthorized access and vandalism
- Flush-mount form factor with integrated back box for clean, recessed installation
- Standard key cylinder included - keyed to operate gate or door access
- Dry-contact outputs compatible with a wide range of gate operators and access control systems
Compatibility Guide
- Sliding gates
- Swing gates
- Overhead doors
- Barrier arm operators
- Electric door strikes
- Access control panels
- Any 24VAC/VDC or 120VAC gate or door operator with open/close dry-contact inputs
Professional Specs
| Feature | Specification |
|---|
| Model | MMTC 1KFX |
| Item Type | Key Switch |
| Voltage | Dry-contact (voltage-free) switch; compatible with low-voltage and line-voltage systems - typically rated 10A at 125VAC / 5A at 250VAC (verify with manufacturer datasheet) |
| Contact Configuration | Two-position (Open / Close) with center return spring - momentary SPDT or DPDT dry contacts, one set per position; no stop contact |
| Enclosure Rating | NEMA 4 (weatherproof, suitable for outdoor use) |
| Materials | Zinc die-cast or heavy-gauge metal faceplate and back box with weatherproof gasket seal; tamperproof stainless or plated steel hardware |
| Dimensions | Faceplate: H 6" x W 4-3/4" x D 2-7/8"; Back Box: H 3-3/4" x W 3-3/4" |
| Mounting | Flush mount with integrated back box; panel or post installation |
| Alternate Part Numbers | MMTC-1KFX, 1KF-X, 1KFX |
Frequently Asked Questions
Q: Does the 1KFX include a stop button or stop position?
A: No. The 1KFX is a two-position open-close only switch with center return. It does not include a stop button or stop contact. If you need a stop function, look at the MMTC 1KFSX, which adds a center stop position.
Q: What is the enclosure rating of the 1KFX and can it be used outdoors?
A: The 1KFX is rated NEMA 4, meaning it is sealed against windblown dust and rain and is suitable for outdoor or exterior installations. This contrasts with the 1KFS, which is NEMA 1 rated for interior use only.
Q: How is the 1KFX mounted?
A: The 1KFX is designed for flush mounting into a wall, post, or panel surface using the integrated back box (3-3/4" x 3-3/4"). The faceplate covers the finished opening and is secured with tamperproof hardware to deter vandalism.
Q: What type of key cylinder does the 1KFX use?
A: The 1KFX ships with a standard key cylinder. It is the base model with no suffix. Variants with different cylinders include the 1KFXBC (Best/SFIC core), 1KFXCC (Corbin/Russwin), and 1KFXSLF (schlage), though cylinder availability should be confirmed with your distributor.
Q: What gate operators or access control systems is the 1KFX compatible with?
A: The 1KFX provides dry-contact (voltage-free) momentary outputs for Open and Close commands. It is compatible with virtually any gate operator, door operator, or access control panel that accepts dry-contact open/close inputs, regardless of operating voltage (low-voltage or line-voltage systems).
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