440P-MSRS11B

Overview of Allen Bradley 440P-MSRS11B

The Allen Bradley 440P-MSRS11B is a large metal IEC-style safety limit switch engineered for demanding industrial environments where reliable machine safety and position sensing are critical. This full switch unit combines a rugged head and body with a spring rod actuator, offering snap-action switching for immediate, positive operation. The Allen Bradley 440P-MSRS11B features two circuits with conduit entry, a single normally open contact configuration, and a 30 mm horizontal mounting hole spacing for flexible installation. Built to operate in ambient temperatures from -25 to +65°C, it is designed for enduring performance in harsh conditions. The switch is UL Listed, CSA Certified, and CE Marked, ensuring compliance with international safety standards. Its robust construction makes it a trusted choice for OEMs and system integrators requiring dependable safety and control functions in automated systems.

Key Features of Allen Bradley 440P-MSRS11B

• Large metal IEC-style safety limit switch for industrial automation
• 30 mm full switch with head and body, spring rod actuator, and snap acting mechanism
• Two circuits, conduit entry, and one normally open contact
• UL Listed, CSA Certified, and CE Marked for safety compliance
• Operator head can be rotated in 90° increments for flexible mounting
• Operates in a wide temperature range (-25 to +65°C)

Technical Specs of 440P-MSRS11B

• Actuator Type: Spring rod, snap acting
• Contact Configuration: 1 normally open (2 circuits)
• Mounting Hole Spacing: 30 mm
• Temperature Range: -25 to +65°C
• Switch Type: Large metal IEC-style
• Electrical Connection: Conduit entry for secure wiring
• Operator Head: Rotatable in 90° increments
• Certifications: UL, CSA, CE

Applications / Use Case

The Allen Bradley 440P-MSRS11B is widely used in industrial applications requiring reliable machine guarding, safety interlocking, and position detection. It is frequently installed on machinery such as presses, conveyors, packaging equipment, and material handling systems, where unintended machine movement must be prevented for operator safety. Its robust metal enclosure and snap-acting contacts ensure rapid response to mechanical input, making it suitable for high-cycle applications and environments with moisture, dust, or vibration. System designers and maintenance teams value this switch for its ease of installation, consistent performance, and compliance with international safety standards. The 440P-MSRS11B is a core component in safety circuits for North American and international machinery OEMs.

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