COMMERCIAL DOOR OPERATOR NOTE: 1. On steel insulated doors, a gauge back panel is assumed 2. Maximum recommended duty cycles 12 cycles per hour Standard Features • Motor Powerful 1/2 HP, V single-phase motor with instant reverse, capacitor start and overload protection. Removable without affecting limit switch settings. • Emergency Disconnect Spring-loaded disconnect for emergency manual operation. • Operator/Motor Control Solid-state Medium-Duty Logic circuit board. • Control Circuit 24V NEC Class 2. • Wiring Type All operators are factory preset to C mode, providing momentary contact to open and stop, with constant contact to close. Monitored entrapment protection, using approved photo sensors or sensing edges, is optional, although recommended, when using this wiring type. Momentary contact to close (B mode) is an available optional wiring type, but can only be selected when the appropriate monitored entrapment protection device, either LiftMaster ® CPS-U / CPS-UN4 photo sensors or a monitored wire sensing edge (via the CPS-EI interface, is present. The Medium-Duty Logic operator is pre-wired to accept CPS-U/ CPS-UN4 / CPS-EI monitored entrapment protection devices.