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 high short-circuit ratings at common low-voltage levels mean it handles faults upstream without cascading, a key consideration for selective coordination studies.
Overcurrent release and communication
The breaker uses an ETU850 electronic overcurrent release, which provides adjustable trip curves and communication capability — the listing confirms a communication function is present, so this unit can integrate with a higher-level monitoring or energy management system over a bus protocol (typically PROFIBUS or PROFINET on the SENTRON platform, though the exact protocol is not specified here). The ETU850 release allows fine-tuning of long-time, short-time, and instantaneous pickup for selective coordination.
Dimensions are 181 mm height, 140 mm width, and 86 mm depth. The 140 mm width matches the standard 4-pole MCCB footprint in the SENTRON 3VA range, so it drops into an existing busbar or lug kit layout without panel rework. Depth of 86 mm leaves clearance behind a 200 mm deep enclosure for wiring and lug access.