MCCB for line protection — 20 A, 4-pole, high interrupting capacity
It carries a continuous current rating of 20 A across an ambient range of 40 °C to 55 °C, derating to 19 A at 60 °C through 70 °C — so the full 20 A holds in most ventilated enclosures without headroom loss. Breaking capacity is the standout: 121 kA at 240 V AC, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 500 V and 690 V. The TM210 thermal-magnetic release (fixed thermal, fixed magnetic) is set for line protection, not motor starting; no adjustment needed, no mis-coordination risk.
The breaker measures 70 mm deep, 101.6 mm wide, and 130 mm high — a compact footprint that fits standard panel-mount cutouts for 4-pole MCCBs. Maximum power loss is 12 W, which is modest for a 4-pole 20 A device — panel thermal rise stays manageable even in densely packed enclosures.