Product Description
The MMTC 1KXS-BC is a NEMA 4-rated exterior tamperproof key switch combining an integrated stop button with a Best Cylinder (BC) interchangeable core for installations requiring both emergency stop functionality and advanced key management. The Best Cylinder format allows authorized personnel to rekey or swap the lock core using only a control key, while the stop button provides immediate gate halt capability independent of key operation. Built on the 1KXS tamperproof aluminum die-cast platform: NEMA 3R/4/12 rating, SPDT center-return open-close contacts plus stop button, 15A at 125/250V AC, 4-3/8" H x 4-1/8" W x 2-5/8" D surface-mount.
Key Features
- Integrated stop button for emergency stop and override functionality - key differentiator from standard 1KX series
- Best Cylinder (BC) format for compatibility with Best Access Systems master key programs
- NEMA 3R / 4 / 12 rated aluminum die-cast enclosure for exterior and harsh-environment use
- Tamperproof operation via Best-format cylinder
- SPDT center-return switching for Open and Close functions
- 15A @ 125/250VAC contact rating
- Surface-mount installation
- Compact form factor suitable for post or wall mounting at gate and door entry points
Compatibility Guide
- Gate operators
- Barrier arm operators
- Door operators
- Access control systems requiring emergency stop
- Best lock cylinder compatible access control hardware
- Industrial machinery with key-switch interlock
Professional Specs
| Feature | Specification |
|---|
| Model | 1KXS-BC |
| Item Type | Key Switch |
| Voltage | 125VAC, 250VAC |
| Contact Configuration | SPDT center-return (Open-Close) with integrated Stop button |
| Enclosure Rating | NEMA 3R / NEMA 4 / NEMA 12 |
| Materials | Aluminum die-cast enclosure |
| Dimensions | 4-3/8" H x 4-1/8" W x 2-5/8" D |
| Mounting | Surface mount |
Frequently Asked Questions
Q: What is the purpose of the integrated stop button on the 1KXS-BC?
A: The integrated stop button provides emergency stop and override functionality, allowing an operator to immediately halt gate or door movement without using the key. This is the primary differentiator from the standard 1KX series, which does not include a stop button.
Q: What cylinder format does the 1KXS-BC use?
A: The 1KXS-BC uses a Best-format cylinder (BC), which is compatible with Best Access Systems keying infrastructure. If you require a standard 5-pin mortise cylinder, refer to the 1KXS variant instead.
Q: Is the 1KXS-BC rated for outdoor use?
A: The 1KXS-BC is rated NEMA 3R, NEMA 4, and NEMA 12, making it suitable for exterior installations exposed to rain, sleet, windblown dust, and hosedown conditions.
Q: Can the 1KXS-BC directly switch a gate operator?
A: Yes. The 1KXS-BC is rated 15A at 125/250VAC, making it suitable for direct switching of most residential and light commercial gate and door operators.
Q: Why would I choose the 1KXS-BC over the standard 1KXS?
A: The Best Cylinder format allows the 1KXS-BC to be integrated into facilities or campuses already using Best Access Systems master key programs, enabling unified key control across locks and key switches.
Q: What does 'tamperproof' mean in the context of the 1KXS-BC?
A: The tamperproof design uses a key-operated Best-format cylinder that prevents unauthorized actuation of the open or close functions, while the stop button remains accessible for emergency use.
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