Ensure superior machine guard locking and establish vital safe-access for personnel around hazardous machinery with the 440N-S32022 Sipha Non-Contact Safety Switch by Allen Bradley Guardmaster. This cost-efficient magnetic safety switch offers ease-of-installation and versatility due to its compact size and moulded-in brackets.

The 440N-S32022 Sipha S12 Safety Interlock Switch has 1NC and 1NO Safety Contacts, 1 NC Auxiliary Contact, and a 3m cable. The housing is S1 and made of moulded ABS plastic, in red. It has a sensing distance of 5mm (make), 11mm (break). It is IP67 rated (NEMA 6P), making it fully protected against ingress of dust and highly suitable for use in wet environments as it can withstand temporary immersion in water. The operating temperature range for this switch is -10°C to +55°C (+14° to +131°F). The Auxiliary Contact switching capability is: 300VDC, 250VAC, 0.5A including inrush.

The Sipha Safety Switches feature magnetically sensitive elements which must be activated in a specific sequence to operate correctly, ensuring greater reliability and security for complex applications. They cannot be defeated by a simple magnet. These dependable switches are perfectly suited for use with sliding, hinge, and lift-off safety guards. When the safety barrier is released the power is isolated, preventing dangerous machinery from running while personnel can access it and reducing risk of injury.

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.

• Can be mounted in any position
• Magnetic coded sensing for superior security
• Must be operated with its own safety control unit
• Non-contact actuation ensures less wear-and-tear and longer service life
• Slim moulded ABS housing with IP67 rating
• Easy to install and versatile due to compact size and moulded-in brackets

IP67 rated
EN954-1
ISO13849-1
IEC/EN60204-1
NFPA79
EN1088
ISO14119
IEC60947-5-1
IEC/EN60947-5-3
ANSI B11.19
AS4024.1
CE certified
UL listed
TUV 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. Allen Bradley Guardmaster, Rockwell Automation, are experts in machine safety devices and have an exceptional range to help you find your ideal solution.