Siemens 3VA5102-1MU31-0AA0 Motor Circuit Protector

This motor circuit protector uses magnetic-only, instantaneous tripping for short-circuit protection. Coordinate it with motor overload protection so the motor circuit has protection against both short circuits and sustained overloads.

Use the 2A rated current when evaluating the motor circuit's current requirements. Treat rated current and magnetic pickup as separate selection considerations, because the adjustable magnetic setting controls instantaneous tripping.

Adjustable magnetic tripping lets you coordinate instantaneous pickup with motor-starting inrush and short-circuit protection requirements. Select the setting as part of the motor circuit's protection coordination.

The voltage ratings are 480VAC and 690VAC. At 480VAC, the 65kA interrupting rating must meet or exceed the available fault current at the installation point.

The three-pole configuration serves the three phase conductors of a three-phase motor circuit. Plan the power connections around those three poles; a neutral connection is not applicable.

The terminals are lugs, so plan for lug-terminated conductors. Use 14 AWG as the minimum wire size when selecting conductors for these terminations.

Use the -25C to 70C temperature rating when evaluating the installation environment. Account for temperature conditions at the device location, including heat within the enclosure.

Use the 5.50 in height, 3.00 in width and 3.70 in depth to plan the mounting location. Arrange conductor routing so the rocker lever remains accessible.