The SZ 415-1 with Service lock; AZ 16 manufactured by Schmersal is an electronic safety switch designed for the protection of people, machines, and plants. This multifunctional safety switch has an indicator for circuit status, visual signaling, and coded actuation. The coded actuation design prevents unauthorized use, and the Service lock feature ensures that unintended actuation is blocked. The SZ 415-1 also features IP67 protection, as well as protection against electrostatic interference, water, dust, and vibration. The product is rated with a 100 µ-A maximum leakage current and is UL listed.