Positive Trip‑Free Snap Action Mechanism to Ensure Reliable Switching
AC & DC Voltages Available In One Series
UL489 Branch Circuit Protective Device
Cuttable Bus Bar Connecting System
UL1077 Equipment Protection
Visual Status Indication
17.5mm Width per Pole
Single pole and multi‑pole thermal‑magnetic miniature circuit breakers (MCBs) in accordance with EN 60947‑2, UL 1077 and UL 489 for DIN rail mounting with toggle actuation, visual status indication and high interrupt capacity. A positively trip‑free snap action mechanism ensures reliable switching behavior. A range of trip characteristics and add‑on accessories make the UMBW suitable for a variety of applications.