Maximise uptime, safeguard machine operators, and secure your guard door with the Sensaguard 440N-Z21S16B RFID Non-Contact Safety Switch by Allen Bradley Guardmaster.

This switch has high tamper resistance and dependability due to advanced latest generation Radio Frequency Identification technology for coding and inductive technology for sensing. It has tolerance to door misalignment and a large sensing range. It is expertly designed to be installed on machine guard doors and provides a superior level of security and protection to reduce risk of injury, damage to equipment, and overall downtime. The Sensaguard range is perfectly suited to meet a wide range of industrial applications.

The 440N-Z21S16B Sensaguard switch has a 10m cable and an 18mm standard code actuator. It offers fast diagnostics and door status due to the LED indication located on the switch. The housing is an 18mm plastic barrel, in red. This cost-efficient safety switch has an excellent environmental protection rating of IP69K, which ensures that it can withstand powerful jets of water and is dust-tight. It has a supply voltage rating of 24Vdc and the assured sensing distance is 15mm. This unit can be connected standard safety relays, SmartGuards and safety I/O blocks. It also maintains PLe, SIL 3, Cat 4 rating even with multiple units connected in series.

• Highly tamper-proof due to secure RFID sensing
• No dedicated controller is required
• Multiple sensing directions offers greater flexibility
• Superior reliability due to short-circuit and over-voltage protection
• LED indication for rapid troubleshooting and immediate identification of faults
• Can be connected in series with other safety components (light curtain, E-stops, key interlock switches)
• Uses the standard proximity brackets
• High IP69K rating

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.