Fixed-mount breaker with backplate mounting support, 120 mm wide, 205 mm high, 105 mm deep. Connection pitch is 40 mm; both upside and downside connections are front-facing screw terminals. Mounts horizontally or vertically — no derating required for orientation, which simplifies panel layout in tight enclosures. The grey (RAL 7015) housing is standard for the EasyPact Solar line.
Durability and thermal management
Power dissipation per pole is 18 W, so at full load the three poles together dissipate 54 W — factor that into enclosure ventilation if the breaker is in a sealed cabinet with other heat sources. Thermal memory is built into the TM-D trip unit, meaning the breaker remembers prior heating from overloads and will trip faster on repeated events — useful for motor or transformer starting duty where inrush is followed by sustained load.