Allen Bradley Guardmaster 440N Series RFID Non-Contact Safety Switch, 24V dc, Plastic Housing, 10m Cable

Keep your machine guard totally secure and improve safety for operators with the 440N-Z21SS2BN Sensaguard RFID Non-Contact Safety Switch by Allen Bradley Guardmaster. The Sensaguard range is perfectly suited to meet a wide range of industrial applications. This switch has advanced latest generation Radio Frequency Identification technology for coding and inductive technology for sensing. It features a wide sensing range and tolerance to guard door misalignment. Designed to be installed on machine guard doors, it offers a higher level of protection to reduce risk of injury and downtime.

The 440N-Z21SS2BN Sensaguard Safety Interlock Switch comes with a plastic rectangular sensor, rectangular standard type actuator, and a 10m cable. The operating voltage is 24 V dc, and this unit has an assured sensing distance of 18mm. It features LED indication on the switch for door status and fast diagnostics. It also has margin indication. The enclosure can withstand high-pressure wash downs and is also dust-tight, giving it an excellent IP69K environmental protection rating. Non-contact safety interlock switches are a dependable, cost-efficient solution for protecting machine operators as they ensure that power supply to the machine is isolated when the door is open. This helps to prevent personnel from accessing potentially hazardous areas where dangerous machine processes may be in motion.

Safety Outputs: 2 x PNP, 0.2A, max: Status: ON (+24V DC)
Auxiliary Outputs: 1 x PNP, 0.2A, max

• Short-circuit and over-voltage protection provides optimal stability
• No dedicated controller is required
• Uses the standard proximity brackets
• Multiple sensing directions for maximum application flexibility
• LED is located on the switch for door status and troubleshooting
• Can be connected in series with other safety components (light curtain, E-stops, key interlock switches)

Note: Stainless steel version is more suitable for use in harsh environments. This product is supplied with an actuator.

Sliding
Hinge
Lift-off machine guard doors

IP69K rated
IEC60947-5-3
IEC61508
EN954
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.

RFID stands for Radio Frequency Identification, which is a non-contact method of transferring digital data via radio frequency waves. Devices with this type of wireless communication usually consist of an RFID tag, an RFID reader, and an antenna. The tag transmits data when triggered by an electromagnetic pulse from the reader. This technology is used widely in many industries, for example with tracking inventory goods, personnel tracking and identification, and restricted area access. Non-contact switches with this technology are highly tamper-proof as they cannot be manipulated, providing a higher level of security.