The B3S-1000 is an Electro-mechanical limit switch manufactured by Omron. It is a low-profile switch with an easy-to-mount design and a slim body. The B3S-1000 is suitable for use in a range of applications such as controlling the operation of conveying systems, as a contact switch in various instrumentation, and as a presence sensor in automated machines. It has a snap-action mechanism, protected contact structure, and no coil. It is rated at 10A 250VAC, 5A 250VAC, and with a working temperature of -25°C to 70°C.