Bourns PAC18R 18mm Low Profile Absolute Encoders offer a 1mA @ 10VDC contact rating, 10MΩ @ 500VDC insulation resistance, and IP64 rating. The PAC18R encoders feature an insulated plastic shaft sealing for an enhanced IP level and superior, high-class rotational feel. These encoders have a low profile and up to 30,000 rotation cycle rating. Bourns PAC18R 18mm Low Profile Absolute Encoders are designed for applications where a sealed menu select absolute encoder is required, including professional audio equipment, communications equipment, and industrial automation controls.