Provide secure, weather-resistant local control for commercial doors and gates with the MMTC 3BLM-BC Exterior Three-Button Control Station.

Designed for outdoor installations, this heavy-duty surface-mount control station combines dedicated OPEN, CLOSE, and STOP push buttons with a BEST-style cylinder or equivalent keyed ON/OFF lockout.

The metal enclosure is rated NEMA 3R, NEMA 4, and NEMA 12, making it well suited for demanding commercial and industrial environments where the control station may be exposed to rain, dust, moisture, and other outdoor conditions.

Key Features

• MMTC 3BLM-BC

• Exterior commercial control station

• OPEN / CLOSE / STOP push-button control

• BEST cylinder or equivalent keyed lockout

• ON/OFF lockout function

• Surface-mount installation

• Heavy-duty metal enclosure

• Fully guarded controls

• Buttons arranged vertically

• NEMA 3R rated

• NEMA 4 rated

• NEMA 12 rated

• Suitable for exterior applications

• Ideal for commercial doors, rolling doors, overhead doors, and compatible gate operators

Three-Button OPEN / CLOSE / STOP Control

The 3BLM-BC provides three dedicated operator commands:

OPEN – Normally Open contact
CLOSE – Normally Open contact
STOP – Normally Closed contact

This configuration is commonly used with commercial door and gate operators designed for standard three-button control circuits.

BEST-Style Keyed Lockout

An integrated BEST cylinder or equivalent keyed lockout provides an additional level of control over the station.

The keyed switch provides:

ON / OFF Lockout

When placed in the appropriate lockout position, unauthorized use of the push-button controls can be prevented.

This makes the station particularly useful for:

• Warehouses

• Loading docks

• Service entrances

• Industrial facilities

• Parking areas

• Secured commercial openings

• Rolling steel doors

• Commercial gate systems

NEMA-Rated Exterior Enclosure

The 3BLM-BC enclosure carries:

• NEMA 3R

• NEMA 4

• NEMA 12

ratings for demanding exterior and industrial environments.

The metal housing helps protect the internal switches and wiring from environmental exposure while providing a rugged mounting point for commercial installations.

Fully Guarded Controls

The push buttons are fully guarded, helping reduce accidental activation and providing added physical protection around the controls.

The three buttons are arranged vertically for quick, intuitive operation:

OPEN
CLOSE
STOP

Electrical Ratings

Manufacturer-published button rating:

6A @ 125/250VAC

Contact configuration:

OPEN: Normally Open
CLOSE: Normally Open
STOP: Normally Closed

Always verify the operator's control circuit and wiring requirements before installation.

Dimensions

Height: 7"
Width: 2-3/4"
Depth: 3-1/2"

The narrow vertical housing provides a compact surface-mounted control station while retaining full three-button operation and keyed lockout.

Common Applications

Ideal for compatible:

• Rolling steel doors

• Coiling doors

• Commercial overhead doors

• Sectional doors

• High-lift doors

• Vertical-lift doors

• Industrial doors

• Commercial gate operators

• Loading dock doors

• Warehouse openings

• Parking-control systems

Product Specifications

Brand: MMTC
Model: 3BLM-BC
Product Type: Exterior Three-Button Control Station
Controls: OPEN / CLOSE / STOP
Lockout: BEST Cylinder or Equivalent Keyed Lockout
Lockout Function: ON / OFF
Mounting: Surface Mount
Enclosure: Metal
Button Layout: Vertical
Guarding: Fully Guarded
NEMA Rating: 3R, 4 & 12
Button Rating: 6A @ 125/250VAC
OPEN Contact: Normally Open
CLOSE Contact: Normally Open
STOP Contact: Normally Closed
Height: 7"
Width: 2-3/4"
Depth: 3-1/2"
Application: Exterior Commercial Door & Gate Operator Control

What's Included

• MMTC 3BLM-BC exterior control station

• OPEN push button

• CLOSE push button

• STOP push button

• BEST-style cylinder / equivalent keyed lockout configuration

• Surface-mount metal enclosure

Not Included Unless Specifically Stated

• Door or gate operator

• Field wiring

• Conduit

• Power supply

• Operator control board

• Additional access-control components

Important Ordering Information

Before ordering, verify:

• Operator supports standard OPEN / CLOSE / STOP control

• Normally Open OPEN and CLOSE circuits are compatible

• Normally Closed STOP circuit is compatible

• BEST-style keyed lockout is required

• Surface mounting is appropriate

• Available mounting space

• Required NEMA enclosure rating

• Control-circuit voltage and current

This is a control station, not a motor controller or operator power disconnect. It should be wired to the appropriate low-voltage or control circuit specified by the door or gate operator manufacturer.