440N??21SS2HN
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Overview of Allen Bradley 440N-Z21SS2HN
The Allen Bradley 440N-Z21SS2HN is a SensaGuard plastic rectangular non-contact safety switch designed for industrial safety applications. It features a plastic rectangular flat pack actuator and offers an assured sensing distance of 25 mm (0.98 in). This device is equipped with dual PNP safety outputs and an auxiliary output, supporting maximum load currents of 0.2A. Its 6-inch pigtail with an 8-pin Micro (M12) connector allows for straightforward integration into control systems. The 440N-Z21SS2HN includes LED indication for door status and troubleshooting, enhancing operational diagnostics. Its plastic housing is suited for environments demanding reliable safety interlocks in a compact form factor.
Key Features of Allen Bradley 440N-Z21SS2HN
- Non-contact safety switch with 25 mm assured sensing distance
- Two PNP safety outputs rated at 0.2A max load current each
- One auxiliary PNP output for additional signaling
- Plastic rectangular flat pack actuator, 6-inch pigtail with 8-pin Micro M12 connector
- LED door status and diagnostic indication for easy troubleshooting
- Solid state contact configuration ensuring reliable operation
- Operating voltage of 24V DC (±10%/-15%)
- IP66, IP67, and IP69K protection ratings for use in harsh or washdown environments
- Operating temperature range from -25 to +70 °C (-13 to +158 °F)
- Compliance with safety standards suited for safety-related control systems
Technical Specs of 440N-Z21SS2HN
| Specification | Details |
|---|---|
| Assured Sensing Distance | 25 mm (0.98 in) |
| Safety Outputs | 2 x PNP, 0.2A max load each |
| Auxiliary Output | 1 x PNP, 0.2A max |
| Connection Type | 6 inch pigtail with 8-pin Micro (M12) connector |
| Operating Voltage | 24V DC +10% / -15% |
| Protection Rating | IP66, IP67, IP69K |
| Operating Temperature | -25 to +70 °C (-13 to +158 °F) |
| Housing Material | Plastic |
Applications / Use Case
The Allen Bradley 440N-Z21SS2HN is ideal for use in safety-related industrial automation applications requiring non-contact interlocking. It is commonly implemented in machine guarding systems where door position monitoring and operator safety are critical. Its robust IP ratings and operating temperature range make it suitable for environments exposed to washdowns, dust, and humidity, including food processing facilities, packaging lines, and manufacturing plants. The reliable electrical outputs provide safe signals to machinery control systems to halt operations when safety barriers are opened. Its compact design and standardized connector allow straightforward deployment in new or retrofit projects within safety control systems.
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