Product Description
The MMTC 3BFL is a NEMA 1 rated interior flush-mount three-button OPEN-CLOSE-STOP control station with a key-controlled lockout function. The key-operated lockout switch (ON/OFF) disables all three push buttons when in the locked position, preventing unauthorized or unsupervised gate operation. Push buttons are fully guarded, color-coded, and arranged in a triangular pattern rated at 6A @ 125/250VAC. The key lockout uses a standard (non-Best) cylinder. The 3BFL is the base lockout variant; facilities requiring a Best-compatible interchangeable core cylinder should specify the 3BFL-BC, and applications requiring a mortise lockout mounting should specify the 3BFLM.
Key Features
- Three-button OPEN-CLOSE-STOP pushbutton configuration in color-coded, fully guarded triangular pattern
- Key-operated supervisory lockout (ON/OFF) disables all pushbuttons to prevent unauthorized gate operation
- Standard key cylinder included (non-Best); BC and mortise cylinder variants available separately
- Flush mount design for clean, recessed wall installation
- Metal enclosure rated NEMA 1 for interior dry-location use
- Pushbutton contacts rated 6A @ 125/250VAC for broad operator compatibility
Compatibility Guide
- Slide gates
- Swing gates
- Barrier arm operators
- Any gate or door operator requiring three-button (OPEN-CLOSE-STOP) control with supervisory lockout
Professional Specs
| Feature | Specification |
|---|
| Model | MMTC 3BFL |
| Item Type | Lockout Control Station |
| Voltage | 125VAC, 250VAC |
| Contact Configuration | Three pushbuttons (OPEN, CLOSE, STOP); key-operated lockout switch (ON/OFF) disables all three pushbuttons when locked out |
| Enclosure Rating | NEMA 1 |
| Materials | Metal enclosure |
| Mounting | Flush mount (interior wall box) |
Frequently Asked Questions
Q: What does the key lockout on the 3BFL actually do?
A: The key-controlled lockout is a supervisory feature - turning the key to the OFF position disables all three pushbuttons (OPEN, CLOSE, STOP), preventing unauthorized or unsupervised operation of the gate or door operator. Turning the key back to ON restores normal pushbutton function. The key does NOT directly command gate movement; it simply enables or disables operator access to the buttons.
Q: Can the 3BFL be used outdoors?
A: No. The 3BFL is rated NEMA 1, which is designed for indoor, dry-location use only. For outdoor or wet/damp environments, a NEMA 3R or NEMA 4 rated control station would be required. Installing the 3BFL outdoors will void any warranty and may result in equipment failure or safety hazards.
Q: What type of key cylinder does the 3BFL use, and how does it differ from the 3BFL-BC or 3BFLM?
A: The 3BFL uses a standard (non-Best) key cylinder for the lockout mechanism. If you require a Best-compatible or interchangeable-core cylinder, the 3BFL-BC variant is available with a Best Cylinder Equivalent. For a mortise-style lockout cylinder, the 3BFLM variant should be specified instead.
Q: What is the electrical rating of the pushbutton contacts?
A: The 3BFL pushbuttons are rated at 6 amperes at 125/250VAC. This rating is suitable for direct control of most low-voltage relay inputs and motor control circuits on standard commercial gate and door operators. Always verify that your operator's control input requirements do not exceed this contact rating before wiring.
Q: How is the 3BFL mounted, and is a wall box required?
A: The 3BFL is a flush mount control station, meaning it is designed to be mounted into a wall box or enclosure cutout with the face plate sitting flush with the surface. It is not designed for surface (pendant) or conduit-mount installation without an appropriate flush-mount wall box. Ensure the wall box depth is compatible with the 3BFL back box before installation.
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