The Square D / Telemecanique XCKT2710N12S23 is a compact, modular severe duty limit switch from the Osiswitch XCKT family. It carries a 2NC slow make/break contact configuration rated 10 A at 240 VAC and 0.27 A at 250 VDC, housed in a wide plastic body with a top push rod plunger actuator. Enclosure ratings cover NEMA 1/2/4/6/12/13 plus IP66 and IP67, meaning it withstands hose-down and temporary submersion — suitable for washdown zones on packaging lines or outdoor conveyor sections. Approvals include UL 508 and CSA C22.2, so it slots into North American panels without a waiver.
The 10 A at 240 VAC contact rating is the resistive (general-use) figure; for DC switching the 0.27 A at 250 VDC limit governs — that is the number to watch when breaking DC solenoids or brake coils. The 2NC slow make/break configuration gives positive opening of the normally-closed circuit, required for safety-related interlock circuits per EN/IEC 60947-5-1. Operating temperature spans -13 to 158 °F (-25 to 70 °C), covering most indoor and sheltered outdoor installations. The 1/2 inch NPT conduit entry accepts standard metallic or liquid-tight fittings, with screw-clamp terminals inside for field wiring.