Motor-protection circuit breaker, 3RV2011-1AA15-ZW97
Trip Class 10 means it trips within 10 seconds at 7.2× rated current — the standard for protecting standard induction motors during locked-rotor starts. Breaking capacity is 100 kA at 400 V, 500 V, and 690 V — that is high enough to sit downstream of a transformer or a large bus without requiring a current-limiting upstream device in most industrial installations.
Dimensions are 97 mm deep, 45 mm wide, 97 mm tall. Clearance: 50 mm above and below, 30 mm at the side — plan the enclosure depth to accommodate the 97 mm body plus wiring space. Main circuit terminals accept screw-type connections: 2× (0.5 to 1.5 mm²) or 2× (0.75 to 2.5 mm²) solid or stranded. Torque to M3 for the main contacts. Mounting position is any — vertical, horizontal, upside-down — no derating needed for orientation.