The A165E series emergency stop (E-stop) switch is a product manufactured by Omron Automation and Safety. It belongs to the category of switches and is specifically designed for emergency stop applications. This A165E switch has a single-pole, single-throw normally closed (SPST-NC) circuit, providing a safety mechanism for quickly stopping machinery or equipment in emergency situations. It operates at an operating temperature range of -10°C to 55°C and is dust tight, oil and water resistant with an IP65 ingress protection rating. The A165E switch is panel mounted and comes in a bulk package, which includes 3 pieces: 1 switch, 1 locking ring, and 1 nut. It is commonly used in industrial automation, machinery, and control systems where emergency stop functionality is required. With its durable construction, reliable operation, and easy installation, the A165E series emergency stop switch is a critical component for ensuring safety in various industrial applications.