1-pole MCCB for line protection — 20 A, TM210 release, 53 kA at 240 V
The interrupting capacity is 53 kA at 240 V AC and 8 kA at 415 V AC — the 415 V figure is the one that governs most European 400 V distribution, so verify your available fault current against that lower value, not the 240 V headline. The 1-pole form factor (25.4 mm wide) fits a single module on a DIN rail, leaving adjacent slots for other breakers or accessories. The TM210 release is fixed — no interchangeable trip units — so the 20 A rating is baked in at the factory. Maximum power loss is 4 W.
At 60 °C it derates to 19 A, and stays at 19 A through 70 °C. That means in a warm panel — say 50 °C internal ambient — you still get the full 20 A; no need to oversize for a typical industrial enclosure.
Depth is 70 mm, height 130 mm, width 25.4 mm — a single 1-pole module.