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The Altech Corporation 3G15UM is a manual motor controller designed for various AC applications, including motor starting, general use, resistance loads, and lighting circuits. This 3-pole circuit breaker utilizes a thermal magnetic trip mechanism and is rated for 15A at 480V AC.
Key specifications include a short circuit withstand rating of 10kA and a calibration temperature of 40°C. The operating temperature range is -25°C to 70°C, with a storage temperature range of -40°C to 70°C. The device is designed for DIN rail mounting and features a lever actuator for operation. Terminal sizes are acceptable for 18-3 AWG wire on the top and 18-2 AWG on the bottom, with a recommended torque of 2 to 2.5 Nm.
Compliance is noted with UL508 listing and CSA approval. The degree of protection is IP20. The circuit breaker is suitable as a motor disconnect and is available with B, C, or D trip curves, though this specific model is listed with B, C, D curves.
Applications include AC Motor Starting, Across the Line, AC General Use, AC Resistance, AC Discharge Lamps (Ballast), and AC Incandescent Lamps (Tungsten).
480Y/277V AC (line-to-line/line-to-neutral).
DIN Rail.
-25°C to 70°C (-13°F to 158°F).
10kA with UL-listed RK5 back-up fuse or MCCB.
B, C, and D.
CSA and UL508.
40°C (104°F).