PEM1G12X single‑throw limit switch. A37-A83X

Limit switch with roller plunger and connecting cable

This device acts as a safety mechanism in industrial automation systems – it responds to physical contact, opening the circuit via a normally‑closed contact. It is used where precise and reliable position detection is required, e.g., on production lines, in packaging machines, or in sliding robots.

The housing is made of metal, powder‑coated, providing resistance to mechanical damage and corrosion. Dimensions 31.5 × 49 × 16 mm allow installation in confined spaces, and the 1 m connecting cable (as verified from online data) simplifies wiring without the need for additional leads.

The roller plunger with a 12 mm steel roller and parallel alignment operates smoothly – it minimizes friction and reduces the risk of jamming when contacting uneven surfaces. The roller is designed for intensive use, and its construction ensures stable force transmission without deformation.

Protection rating IP67 guarantees full dust tightness and temporary immersion in water – making the device suitable for humid, dusty, or frequently washed environments (e.g., food‑processing or pharmaceutical industries). It does not include a status indicator or electronic output – it is a purely mechanical switch.

Rated for AC-15 voltage: up to 3 A at 125 V, up to 1.5 A at 230 V. For DC-13: up to 1.1 A at 24 V, up to 0.22 A at 125 V. These values match typical loads in automation – the switch is not intended for high‑power motor control but is ideal for control circuits, signaling, or safety interlocks.

Forced opening ensures the contact does not remain closed unintentionally – even if the plunger becomes jammed or damaged. This is a key feature for systems where safety takes precedence over continuous operation.

Operating temperature from ‑25 °C to +70 °C allows use in cold warehouses as well as near hot machinery. The device is not certified for explosion‑prone zones – it is not intended for hazardous areas.

Installation is straightforward: the housing is a rectangular block with a side cable outlet – simply mount it on a panel or machine frame so the roller contacts the moving part. No calibration or adjustment is required.