160 A MCCB with flat thermal derating and high interrupting capacity
Three-pole construction with an adjustable thermal-magnetic trip range of 240 A minimum to 1 600 A maximum, making it suitable for feeder or main breaker duty in distribution panels where the load can be sized within that window. Interrupting capacity follows the voltage curve: 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 3.7 kA at 690 V — the 690 V figure is low enough that this breaker should not be the primary fault-clearing device on a 690 V bus unless upstream coordination is confirmed.
Configuration and integration notes
This variant ships without undervoltage release, ground-fault monitoring, communication module, or trip indicator — it is a bare line-protection MCCB. Four auxiliary switches (HQ type) are included for status feedback to the PLC or panel indication. Maximum power loss of 25.5 W at rated current — account for this in enclosed panel thermal calculations, especially when grouping multiple breakers in a single enclosure.
The storage minimum matters for unheated warehouses in cold climates — the breaker can sit at -40 °C without damage.