Description
The Honeywell BXM4N-1A Snap Action Limit Switch is a heavy-duty, explosion-proof switch designed for hazardous locations requiring precise and reliable mechanical control. Featuring a side rotary roller actuator, DPDT contact configuration (2NC/2NO), and IP67-rated enclosure, it provides dependable performance in demanding industrial environments.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Honeywell |
| Category |
Industrial Controls |
| Part Number |
BXM4N-1A |
| Subcategory |
Limit Switch |
| Series |
BXM Series |
| Type |
Hazardous Location Snap Action Limit Switch |
| Contact Form |
DPDT (2NO / 2NC) |
| Switch Function |
Momentary Off-Momentary (Mom-Off-Mom) |
| Actuator Type |
Side Rotary Roller |
| Head Type |
Side Rotary Head |
| Mounting Type |
Chassis Mount |
| Termination Style |
Screw Terminals |
| Voltage Rating (AC) |
120V / 600V AC Max |
| Voltage Rating (DC) |
120V DC |
| Current Rating (AC) |
10A |
| Current Rating (DC) |
800mA |
| Operating Force |
46 gf·cm (gram-force centimeter) |
| Operating Position |
15° |
| Pretravel |
15° |
| Differential Travel |
7° |
| Overtravel |
60° |
| Type Port |
3/4" NPT Conduit Entry |
| Enclosure Rating |
IP67 – Dust Tight, Waterproof |
| Protection Feature |
Explosion-Proof / Hazardous Location Rated |
| Material |
Metal Alloy Body with Sealed Head |
| Operating Temperature Range |
-40°C to +85°C (Typical for BXM Series) |
| Certifications |
UL, CSA, ATEX Compliant (Explosion Proof) |
| Country of Origin |
United States |
| Weight |
3.00 lbs |
Information About BXM4N-1A
The BXM4N-1A belongs to Honeywell’s BXM Series of MICRO SWITCH hazardous location limit switches, engineered for precise control and long-term reliability in explosive or high-risk industrial environments. It features a side rotary roller actuator that provides consistent snap action response with high mechanical endurance. The switch’s double-pole, double-throw (DPDT) configuration with 2NO/2NC contacts supports flexible circuit control in both AC and DC systems. Constructed from rugged, explosion-proof materials and sealed to an IP67 rating, it ensures safe operation in environments exposed to gas, dust, or moisture. The 3/4" NPT conduit entry and screw terminal connections simplify installation and maintenance in heavy-duty field applications.
Key Features:
- Explosion-Proof Design: Certified for hazardous locations, ensuring safe operation in environments with flammable gases or dust.
- DPDT Contact Configuration: Provides two normally open and two normally closed contacts for versatile circuit control options.
- Side Rotary Roller Actuator: Enables precise mechanical actuation for applications requiring smooth, repeatable switching.
- Snap Action Mechanism: Delivers rapid switching performance with minimal contact bounce and extended electrical life.
- High Electrical Ratings: Handles up to 10A at 120–600V AC and 800mA at 120V DC for both control and power circuits.
- IP67 Environmental Protection: Fully dust-tight and waterproof for reliable use in harsh or outdoor conditions.
- Durable Metal Construction: Heavy-duty body ensures strength, corrosion resistance, and long service life.
- Wide Mechanical Travel Range: Offers 15° pretravel, 7° differential, and 60° overtravel for flexible application design.
The BXM4N-1A delivers the reliability and precision required for position detection, safety interlocking, and control applications in hazardous industrial environments.
