440N-Z21SS2H-AS
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Overview of Allen Bradley 440N-Z21SS2H
The Allen Bradley 440N-Z21SS2H is a SensaGuard rectangular plastic sensor and actuator designed for demanding safety applications. It features a plastic rectangular flat pack style that provides reliable, non-contact switching with assured sensing distance of 25mm (0.98 in). This safety switch includes advanced LED door status indication and diagnostics to enhance troubleshooting and system monitoring. Equipped with an 8-pin M12 micro connector and a 6-inch pigtail, this device offers easy integration into existing control systems. The 440N-Z21SS2H operates on 24V DC power and supports dual PNP outputs with auxiliary functionality, making it ideal for guarding and access control in industrial environments.
Key Features of Allen Bradley 440N-Z21SS2H
- Plastic rectangular flat pack sensor and actuator designed for safety guarding
- Assured sensing distance of 25 mm (0.98 in) for reliable detection
- Dual PNP safety outputs rated at 0.2A max per output
- One auxiliary PNP output providing additional control signaling
- Integrated LED indicators for door status and diagnostic feedback
- Compact rectangular plastic housing for durable, lightweight installation
- 6-inch pigtail with 8-pin micro M12 connector for simplified wiring
- Operating voltage range: 20.4 to 26.4 VDC with Class 2 PELV/SELV compliance
- Designed to meet international safety certifications including CE, UL, and cUL
Technical Specs of 440N-Z21SS2H
| Specification | Details |
|---|---|
| Type | Non-contact rectangular plastic sensor and actuator |
| Assured Sensing Distance | 25 mm (0.98 in) |
| Outputs | 2 x PNP safety outputs (0.2 A max each), 1 x Auxiliary PNP output |
| Operating Voltage | 20.4 - 26.4 VDC (Typical 24 VDC) |
| Connection | 6 in pigtail with 8-pin micro (M12) connector |
| LED Indicators | Door status and diagnostic feedback |
| Operating Temperature | -25°C to +70°C (-13°F to +158°F) |
| Protection Rating | IP66, IP67, IP69K (washdown capable) |
| Mechanical Life | Up to 500,000 cycles |
| Certifications | CE, UL, cUL, C-TICK, CCC, KC |
Applications / Use Case
The Allen Bradley 440N-Z21SS2H is ideally suited for safety guarding and access control in industrial automation environments. It is commonly used on safety doors, guards, and hatches where reliable, non-contact detection is critical to prevent unauthorized access and protect personnel. Its compact and durable design makes it appropriate for wet, washdown, or harsh environments due to its IP69K rating. This sensor can be integrated into machine guarding, robotic cells, packaging equipment, and conveyor safety systems. The combination of safety outputs and auxiliary signaling supports complex safety control schemes requiring comprehensive monitoring and diagnostics.
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