The HDFA Series low cost adjustable recycling timers are packaged in the familiar hockey-puck enclosure and may be used to alternately switch power to two independent loads. Both OFF and ON times are independently adjustable by means of built-in potentiometers. Load power is controlled by an isolated SPDT relay contact. Timing ranges are adjustable of a 100:1 span and cover 0.25 seconds to 100 minutes. Contact Rating: 10 amperes maximum @ 250 VAC or 30 VDC. Operating Temperature Range: –40°C to +65°C. Mounting: Single center hole mount. Timing Cycle Interrupt Transfer: None.