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Murphy Time Switches can automatically start or stop engines or electrical motors after a pre- determined time. These time switches can be wired for a open or closed circuit when time expires. They require no electrical current to operate and have an SPDT contact arrangement. These switches feature a precision movement that gives years of reliable service. A built-in stop prevents overwinding.
The 12T (12 hour) and 24T (24 hour) time switches are enclosed in a NEMA 4 weather- proof enclosure. A hinged, gasketed cover and 1/2 NPT conduit connection allow for a dust- tight installation. The enclosure includes a clasp and eye for padlock to prevent unauthorized operation. Instructions for popular engine appli- cations are secured inside of the lid.
The 5T (5 minute) and 15T (15 minute) timers mount directly in control panels for short range timing with manual reset. These switches are perfect for disconnecting shutdown circuits while equipment is being started.
Murphy Time Switches are designed for use in the oil field, irrigation systems or anywhere equipment must operate or be controlled for a predetermined time. Mounted on a post or in a panel away from vibration and shock, these time switches give accurate, long term service.
12T: 0-12 hours in 15 minute intervals.
24T: 0-24 hours in 30 minute intervals.
5T: 0-5 minutes.
15T: 0-15 minutes.
Operating Temperature Range: 0°C to 85°C (32°F to 185°F).
Contact (all models): SPDT, rated 5 A @ 480 VAC; 10 A @ 250 VAC; 15 A @ 48 VDC.
12T, 24T: 4 lbs. 12 oz. (2.15 kg).
5T and 15T: 6 oz. (11.66 g)
12T, 24T: 9-1/4 x 8-1/4 x 5-1/2 in. (235 x 210 x 140 mm).
5T and 15T: 3 x 2-3/4 x 2-3/4 in. (76 x 70 x 70 mm).
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