Allen Bradley Guardmaster 440N Series Magnetic Non-Contact Safety Switch, 250 V ac, 300V dc, Stainless Steel Housing,

The 440N-S32047 Sipha Magnetic Non-Contact Switch provides highly reliable safe-access to machinery and is an ideal solution for your safety system.

This Sipha safety switch is highly tamper-resistant as it features magnetically sensitive elements which must be activated in a specific order to operate correctly, ensuring superior reliability and security for complex applications. It cannot be defeated by a simple magnet. When the safety barrier is released the power is isolated, which prevents dangerous machinery from running while personnel have access and decreases the risk of injury.

The 440N-S32047 Sipha safety switch has 1NC/1NO safety contacts, 1NC auxiliary contact, and an 8 Pin Micro (M12) connector. It has S4 stainless-steel housing, ensuring high durability. The sensing distance is 10mm (make), 13mm (break), and the supply voltage is 250VAC and 300VDC. This dependable unit is sealed to IP67 (NEMA 6P) which makes it highly suitable for use in wash-down environments as it is water-tight. It is also protected against dust ingress. The switch can be used with hinged, sliding, and lift-off machine guards.

The Sipha sensor must be connected to the control unit to give a monitored circuit. The control unit can be used with a single sensor to provide a high-integrity system for high risk applications. It has facilities for connecting a manual reset button and monitoring external devices such as contactors.

• Easy to install and versatile due to compact size and moulded-in brackets
• Tamper-proof - Magnetic coded sensing ensures excellent level of security
• Can be mounted in any position for application flexibility
• Must be operated with its own safety control unit
• Resilient stainless-steel housing with high IP67 rating
• Non-contact actuation ensures less wear-and-tear and longer service life

IP67 rated
EN1088
EN292
EN60204-1
UL approved
CSA certified
TUV certified
CE certified

Rockwell Automation is a global leader in industrial automation and digital transformation, and brings smart manufacturing to life. With a long legacy of creating Allen-Bradley® integrated control and information solutions, we help make you as productive as possible. Our portfolio of sensing, safety and motor control products can support your move towards smart machine applications. Allen-Bradley® IO-Link sensors are data-enabled and communicate with all field buses, providing diagnostic and health information about the device before a machine stops, and enabling quick production changeovers through fast parameter downloads from PLCs into the device. This reduces machine downtime and increases manufacturing OEE. For safety components, products with built-in diagnostics simplify the set-up of the smart device, and reduce maintenance, leading to a more efficient, machine data-driven approach.

Non-contact safety switches are highly reliable and durable. They take less wear and tear and are low-maintenance, as well as resistant to shocks and vibrations. They cannot be easily manipulated or tampered with and are ideal for use with machine guard doors to restrict access to unsafe areas. They are often used in industrial environments, such as in factory production lines.