Provide worldclass protection for machine operators and ensure vital safe-access to machinery with the 440N-Z21S16A Sensaguard RFID Non-Contact Safety Switch by Allen Bradley Guardmaster. This cost-efficient safety switch is perfectly suited to meet a wide range of industrial applications due to its wide sensing range and tolerance to door misalignment. It has advanced latest generation Radio Frequency Identification technology for coding and inductive technology for sensing to keep your machine processes secure and running smoothly.

The 440N-Z21S16A Sensaguard RFID safety switch has an 18mm standard type actuator, an 18mm cylindrical barrel and a 3m cable. It has a supply voltage of 24 V dc. The sensing distance is 15mm and it also features LED indication on the switch for door status and rapid troubleshooting, helping to minimise downtime. The housing material is made of VALOX® DR 4. It has an operating temperature range of -10 to +55°C. The enclosure has an excellent environmental protection rating of IP69K, ensuring that it can withstand regular high-pressure wash downs and is also dust-tight.

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

Non-contact safety interlock switches improve safety for personnel by isolating the power supply to machinery when the guard door is released. This reduces the risk of injury to machine operators by preventing dangerous machine processes from running while the barrier is open.

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

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.