The SENTRON 3VM1125-4ED22-0AA0 is a 2-pole molded case circuit breaker (MCCB) rated for line protection, carrying 25 A continuously at 40 °C and delivering a 121 kA interrupting capacity at 240 V AC — enough to handle high-fault utility feeds or large motor branch circuits without upstream fuses.
Thermal performance and real-world loading
The current rating holds flat at 25 A from 40 °C through 50 °C, then steps down to 24 A at 55–60 °C and 23 A at 65–70 °C — useful when the breaker sits inside a warm enclosure near drives or transformers. Maximum power loss is 6 W, so it won't cook adjacent components in a dense panel.
At 70 mm deep, 50.8 mm wide, and 130 mm tall, this 2-pole MCCB fits standard distribution panelboards and motor control center buckets.