Safety switching

The Allen-Bradley Guardmaster 440P compact metal series of safety limit switches comprises 14 models and features a 2 m pre-terminated side- or bottom-entry cable and a rugged compact 22 mm metal housing. The safety limit switch series also boasts a broad choice of operator configurations, such as dome, roller or cross-roller plunger and short-roller lever. Each member of the 440P safety limit switch series is equipped with positively driven contacts, making them suitable for both safety and standard switching applications.

When ganged together to provide two ‘normally closed’ circuits, or used in conjunction with a safety PLC, the 440P series can accommodate safety applications up to SIL3 and Cat4. Alternatively, the switches can be used in isolation for standard switching applications.

The 440P series’ pre-terminated cable and compact, industry-standard 22 mm housing construction permit simple and quick installation, especially in hard-to-access areas. Further installation flexibility can be realised due to the 440P’s slotted mounting holes, which permit a wide variety of mounting orientations. Additionally, some of the 440P range is available with a threaded panel-mount configuration.

Boasting an IP67 and NEMA 1 enclosure rating, the 440P safety limit switch series is built to withstand arduous operating environments. The 440P series is IEC approved, CE marked, UL recognised and TÜV approved.