It carries a rated continuous current Iu of 100 A at 40 °C, holding that figure through 50 °C before a gentle derating curve kicks in: 96.25 A at 55 °C, 92.5 A at 60 °C, 88.75 A at 65 °C, and 85 A at 70 °C. The interrupting capacity is the headline number for a fault-current study: 187 kA at 240 V, 121 kA at 415 V and 440 V, 79 kA at 500 V, and 3.4 kA at 690 V.
Trip unit and intelligence
The overcurrent release is an ETU850 — an electronic trip unit that provides adjustable long-time, short-time, instantaneous, and ground-fault protection curves, plus communication and measurement functions. Maximum power loss is 13.5 W, which factors into enclosure thermal calculations when multiple breakers are ganged in a panel.
Mounting and environment
Front face carries IP40 protection — splash protection is adequate for a dry indoor panel; the body itself is open-frame behind the panel.