It uses the ETU850 electronic trip unit. Breaking capacity is the headline number here: 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 9 kA at 690 V. It also carries communication and other measurement functions onboard, meaning it can report status and metering data back to a controller — useful for a panel that needs load monitoring without a separate power meter. The N-conductor protection is adjustable from OFF to 20% up to 130%, so it handles 4-wire systems with neutral protection as needed.
Dimensions: 248 mm high, 184 mm wide, 110 mm deep. Power loss is 63.3 W maximum at rated current.
The ETU850 trip unit allows fine-tuning of the long-time pickup, short-time pickup, and instantaneous settings.