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Allen Bradley Guardmaster 440N Series RFID Non-Contact Safety Switch, 24V dc, Plastic Housing, 3m Cable

  • NG # 02712-HW-ALBR-051

  • MF # 440N-Z21SS2AN

Manufactured By :
Allen Bradley
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Overview

Allen Bradley Guardmaster Sensaguard 440N-Z21SS2AN RFID Non-Contact Safety Switch


Upgrade security for your machine guard door with the 440N-Z21SS2AN Sensaguard non-contact safety switch by Allen Bradley Guardmaster. This interlock unit offers greater protection for personnel and equipment, helping to minimise downtime.


The Sensaguard range features advanced latest generation Radio Frequency Identification technology for coding and inductive technology for sensing, providing high reliability and tamper-resistance. The switches have a large sensing range and ensure tolerance to door misalignment.


The 440N-Z21SS2AN Sensaguard safety switch has 2 x PNP safety outputs, 1 x PNP auxiliary output, and an assured sensing distance of 18mm. It has a 3m cable and comes with a standard code actuator. This switch has LED indication which allows easy visibility of door status and rapid diagnostics. It also features margin indication. The rectangular housing is made of durable plastic, in red for highly visibility. This switch is IP69K rated, which ensures that it can withstand powerful jets of water and is fully protected against dust ingress. It is ideal for use with sliding, hinged, and lift-off machine guard doors.


The Sensaguard safety interlock switches can be connected to standard safety relays, SmartGuards and safety I/O blocks to suit your needs. They also maintain PLe, SIL 3, Cat 4 rating even with multiple units connected in series. These cost-effective safety switches are designed meet a broad range of industrial applications.


Features and Benefits:


• Superior reliability due to short-circuit and over-voltage protection
• Multiple sensing directions and high tolerance to misalignment
• Uses standard proximity brackets
• Highly tamper-proof due to secure RFID sensing
• No dedicated controller is required
• Excellent IP69K environmental protection rating
• LED indication for door status and fast troubleshooting
• Can be connected in series with other safety components (light curtain, E-stops, key interlock switches)


Certifications:


IP69K rated
IEC60947-5-3
IEC61508
EN954
CE certified
UL 508 approved
TÜV 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.


What is RFID?


RFID stands for Radio Frequency Identification, which is a non-contact method of transferring digital data via radio frequency waves. Equipment 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.

Specification

Supply Voltage24V dc
Housing MaterialPlastic
Connection Type3m Cable
Actuator TypeCoded
Sensor PrincipleRFID
Safety Category4
Actuator IncludedYes
Series440N
Switching Distance18 mm
RangeSensaguard
IP RatingIP69K
Depth20.65mm
Length88.14mm
Width24.99mm

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