Technical Parameters
Parameter Value
Product Series ABB SACE Tmax XT
Frame Size XT2
Frame Rating 160 A
Rated Current (In) 40 A (adjustable)
Trip Unit TMA – Thermal Magnetic Adjustable
Thermal Overload Adjustment 28 – 40 A
Magnetic Short-Circuit Adjustment 300 – 400 A
Number of Poles 4P
Breaking Capacity Class H (High breaking capacity)
Rated Operational Voltage (Ue) Up to 690 V AC
Rated Frequency 50 / 60 Hz
Rated Insulation Voltage (Ui) 1000 V
Rated Impulse Withstand Voltage (Uimp) 8 kV
Rated Ultimate Short-Circuit Breaking Capacity (Icu) Up to 150 kA @ 400 V AC
Rated Service Short-Circuit Breaking Capacity (Ics) 100% of Icu
Mounting / Execution Fixed
Terminal Type Front terminals (FF)
Protection Functions Overload and short-circuit protection
Standard Compliance IEC / EN 60947-2
Operating Mechanism Manual
Typical Applications Power distribution, feeders, industrial panels
The ABB SACE Tmax XT2H160 TMA40-400 FF 4P is a molded case circuit breaker (MCCB) from the ABB Tmax XT series, designed for reliable protection of low-voltage electrical distribution systems.