Siemens SENTRON 3VA2163-5MN36-0CH0 — Motor Protection MCCB, 63 A, 3-Pole
The Siemens SENTRON 3VA2163-5MN36-0CH0 is a 3-pole molded case circuit breaker (MCCB) rated at 63 A continuous, designed specifically for motor protection. It carries a 187 kA interrupting capacity at 240 V, dropping to 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V — the steep fall at 690 V means this breaker is best applied in 240–500 V systems where its high interrupting rating delivers real selectivity headroom. Built into the SENTRON platform, this MCCB includes an undervoltage release and phase failure detection as standard — two features that matter for motor circuits: the UVR drops the breaker if control voltage dips below the dropout threshold, and phase-loss detection prevents single-phasing damage on a three-phase motor. The auxiliary switch configuration carries two auxiliary switches plus one trip alarm switch, giving the PLC or DCS a clean status signal on open/close and fault conditions.
Panel Fit and Mounting
Dimensions are 105 mm wide, 181 mm tall, and 86 mm deep — a standard SENTRON 3VA footprint that drops into existing panel cutouts and DIN-rail or screw-mount arrangements. The 86 mm depth leaves clearance for rear-connected busbars or cable lugs in a typical 200 mm deep enclosure.
Thermal and Electrical Ratings
The 63 A rating holds flat from 40 °C through 70 °C ambient — no derating needed across the typical panel temperature range. Maximum power loss is 6.5 W, manageable for thermal budgeting inside a sealed enclosure. Operating temperature span is -25 °C to 70 °C; storage range is -40 °C to 80 °C.