The Siemens 3VA2225-5HN32-0LE0 is a SENTRON 3VA2 molded case circuit breaker (MCCB) rated for 250 A continuous current at 40 °C, in a 3-pole configuration. It is designed for line protection and includes an undervoltage release and a universal trigger (UNI) auxiliary release, making it suitable for motor branch circuits and distribution panels where remote tripping or undervoltage protection is required.
Interrupting Capacity and Voltage Ratings
This MCCB delivers 187 kA interrupting capacity at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 4.5 kA at 690 V. These ratings cover the full range of common low-voltage distribution voltages, so the breaker can be applied in 480 V or 600 V class panels with ample fault-current headroom for most industrial installations.
Thermal Derating and Panel Fit
The 250 A rating holds flat from 40 °C through 50 °C, then derates to 241 A at 55 °C, 232 A at 60 °C, 222 A at 65 °C, and 213 A at 70 °C. For a panel running at 50 °C ambient, you get the full 250 A; above that, size the load or the breaker accordingly. Physical dimensions are 181 mm high, 105 mm wide, and 86 mm deep — a standard 3-pole MCCB footprint that fits most Siemens 3VA switchboard and panelboard mounting bases without modification.
Auxiliary and Release Configuration
The breaker ships with four HQ auxiliary switches and a universal trigger (UNI) auxiliary release. The undervoltage release and voltage trigger are both present, so the breaker can be wired for shunt trip or undervoltage protection without adding external modules. Maximum power loss is 50.5 W — account for this in enclosure thermal calculations.
Environmental and Storage Limits
Operating temperature range is -25 °C to 70 °C; storage range is -40 °C to 80 °C. The storage minimum is the handling limit — the breaker can sit in a cold warehouse and still commission fine once warmed to operating temperature.