Siemens SIRIUS 3RT2038-3AL20-ZX95 Power Contactor
The Siemens SIRIUS 3RT2038-3AL20-ZX95 is a size S2 power contactor rated for 65 A at 480 V in AC-3 duty, making it suitable for switching motor loads up to that current in industrial control panels. The coil is wound for 230 V at 50 Hz. It mounts via screw and snap-on onto 35 mm DIN rail per DIN EN 60715, with a footprint of 55 mm width, 114 mm height, and 130 mm depth. The mounting position allows +/-180° rotation on a vertical surface and +/-22.5° tilt forward/backward. Main contacts are spring-type terminals accepting 2x (0.5 to 2.5 mm²) solid or stranded wire. An auxiliary switch is included.
Ratings and Operating Conditions
Rated operational current in AC-3 at 480 V is 65 A; at 230 V the motor rating is 15 hp. Mechanical life is typical 10,000,000 operations. Switching frequency limits: AC-1 resistive loads up to 700 operations per hour, AC-3 motor switching up to 500 ops/h, AC-4 plugging/reversing up to 150 ops/h. Operating temperature range is -25 to +60 °C; storage range is -55 to +80 °C. Arcing time is 10 to 20 ms.