Technical Parameters
Parameter Specification
Product Name ABB Tmax T5N 400 MCCB with Electronic Trip Unit
Part / Order Code 1SDA058151R1
Series ABB Tmax T5N
Type Moulded Case Circuit Breaker (MCCB)
Number of Poles 3-pole
Rated Current (I<sub>n</sub>) 400 A
Rated Operational Voltage 600 V AC
Rated Insulation Voltage (U<sub>i</sub>) 1000 V
Rated Impulse Withstand Voltage (U<sub>imp</sub>) 8 kV
Trip / Release Type PR221DS-LS/I (Electronic solid-state trip unit)
Terminal Connection Fixed front terminals
Interrupting Capacity (UL489) 65 kA @ 240 V AC; 25 kA @ 480 V AC; 18 kA @ 600 V AC
Mechanical Durability ~20,000 cycles
Protection Functions Overload and short-circuit protection (via electronic release)
Mounting Style Fixed MCCB
Standards / Certifications UL and CSA listed
Degree of Protection IP20
Release Adjustment Ranges Short-circuit and delayed settings (as configured on PR221DS-LS/I)
Motor Drive Option Optional motor operator available
The ABB 1SDA058151R1 is a fixed three-pole moulded case circuit breaker (MCCB) from the ABB Tmax T5N series, designed for industrial and commercial electrical protection. It features an electronic solid-state trip unit (PR221DS-LS/I) that provides reliable current protection for AC circuits. The breaker has front-mounted terminals for easy installation and is suitable for use in power distribution systems where UL and CSA certification is required.