At 690 V it still clears 3.8 kA, enough for most 690 V distribution. The ETU560 release gives you adjustable long-time delay (tr) from 0.5 to 25 seconds, plus adjustable N-conductor protection (OFF, 40% to 160%) — useful for sizing the neutral on 4-wire systems where harmonics or unbalanced loads are a concern. Communication function is built in, so it can talk to a BMS or SCADA without an add-on module.
The 3VA2125-5JQ42-0AA0 measures 140 mm wide, 181 mm tall, and 86 mm deep — a 4-pole MCCB that fits standard SENTRON mounting plates and busbar systems.