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Allen Bradley Guardmaster Safety Relays 440N-Z21S26B

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440N-Z21S26B

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The Allen Bradley 440N-Z21S26B is a non-contact safety switch designed for reliable performance in safety applications. With RFID sensing technology, it offers a sensing distance of 25 millimeters and operates at a DC switching voltage of 24 volts.

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Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

Technical specifications for 440N-Z21S26B

ManufacturerAllen Bradley
Product TypeNon-Contact Safety Switch
Product LineGuardmaster Safety Relays
Part Number440N-Z21S26B
Weight5.00 lbs (2.27 kg)
UPC662074620593
Switching Current200 milliamperes
Housing MaterialRed plastic barrel
DC Switching Voltage24 Volts DC
Degree of ProtectionIP69K
Sensing MethodRadio-Frequency Identification (RFID)
Sensing Distance25 millimeters (0.98 inches)
Auxiliary Output TypeOne 0.2 Amperes Positive-Negative-Positive (PNP) output
Safety Output TypeTwo 0.2 Amperes Positive-Negative-Positive (PNP) outputs
Status IndicatorLED indicator
Connection Type10 meters (32.8 feet) cable
Actuator TypeCoded actuator
Housing Diameter18 millimeters (0.71 inches)
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The Allen Bradley 440N-Z21S26B non-contact safety switch functions effectively in ensuring safety in industrial applications. This unit utilizes Radio-Frequency Identification (RFID) technology for its sensing method, allowing for high precision with a sensing distance of 25 millimeters (0.98 inches). With its DC switching capabilities of 24 Volts, this switch efficiently handles various operational tasks.

Constructed with a red plastic barrel, the housing diameter measures 18 millimeters (0.71 inches) and is designed to offer superior durability. The IP69K rating ensures the switch is resistant to high-pressure water and dust, making it suitable for challenging environments.

The switch features both a safety output and an auxiliary output, with each providing 0.2 amperes in a Positive-Negative-Positive (PNP) configuration. For operational status monitoring, an LED indicator is integrated, delivering real-time visibility of the switch’s performance. Connectivity is achieved through a robust 10-meter (32.8 feet) cable, ensuring adaptability in various installation scenarios.

This safety switch is accompanied by a coded actuator, enhancing its ability to prevent accidental activation and ensuring reliable operation. The combination of exceptional environmental protection, precise sensing technology, and flexible connection options makes the 440N-Z21S26B a robust choice for safety-critical applications.