Allen Bradley Guardmaster 440N Series Magnetic Non-Contact Safety Switch, 250 V ac, 300V dc, Plastic Housing, NO/NC, 3m

Guarantee improved protection for personnel by ensuring safe-access to machinery with the Sipha 440N-S32014 Magnetic Non-Contact Safety Switch by Allen Bradley Guardmaster. This innovative switch helps to minimise downtime and enhance efficiency.

The highly tamper resistant Sipha interlock switch is designed specifically to operate with its actuator and cannot be defeated by a simple magnet. It features magnetically sensitive elements which must be activated in a specific sequence to operate correctly, ensuring greater reliability and security. It is ideal for use with sliding, hinge, and lift-off safety guards and gates. 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 control unit is used with a single sensor to ensure a high-integrity system in high-risk applications. The Sipha switch has facilities for connecting a manual reset button and monitoring external devices, such as contactors. For other applications, multiple sensors (including mechanical switches) can be connected to one Sipha control unit.

The 440N-S32014 Sipha safety switch has a supply voltage rating of 250V ac, 300V dc at 0.5A current, 1NC/1NO safety contacts (No auxiliary contacts), and comes with S1 housings and a 3m cable. It has an operating temperature range of -10°C to +55°C and a sensing distance of 5mm (Make) to 11mm (Break). It has an Ingress Protection rating of IP67 (NEMA 6P), which makes it highly suitable for use in wet environments.

• Non-contact actuation - long lasting due to less wear-and-tear, simple set-up, guard door can be opened immediately
• Reliable magnetic coded sensing for exceptional tamper resistance
• Must be operated with its own safety control unit, giving a monitored circuit
• Simple to install and versatile due to its compact size and moulded-in brackets
• Sealed to IP67 – fully protected against dust ingress and can withstand temporary immersion in water
• Slim moulded ABS plastic housing

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

A magnetically coded non-contact switch is a device used for monitoring the position of machine safety barriers. They are typically used in industrial environments. It uses a magnetically-actuated reed contact and a specially-coded actuator. When the barrier is opened the contacts will either open or close due to the magnetic force interrupting the circuit. As there is no contact between the sensor and actuator they take less wear, are resistant to shocks and vibrations, and are highly tamper-proof, which gives them a long service life. They are often used for sliding, hinge, and removable gates.

The Allen Bradley Guardmaster range of machine safety guard components offers flexible, cost-effective solutions to boost productivity and safety in the workplace. Their products are thoroughly tested to global standards to ensure high quality and reliability, and keep your machine processes running smoothly.