The Schneider Electric Masterpact NW32H2 Air Circuit Breaker (ACB) is a heavy‑duty protective device designed for electrical distribution systems that require high current handling and reliable fault protection. Rated at 3200 A with 4 poles (4P) and designated with a breaking capacity code H2, this breaker is used to safeguard electrical networks from overloads, short circuits, and other fault conditions. It complies with international standards for low‑voltage switchgear and can be configured with electronic trip units (e.g., Micrologic) for tailored protection and metering. This robust breaker is suitable for main distribution panels, switchboards, and critical power applications in industrial, commercial, and utility installations.
Technical Parameters
Parameter Specification
Product Name Schneider Electric Masterpact NW32H2 Air Circuit Breaker
Model / Frame Masterpact NW32, H2 interrupt rating
Device Type Air Circuit Breaker (ACB)
Rated Current (In) 3200 A
Poles 4 poles (4P)
Rated Operational Voltage (Ue) Up to 690 V AC, 50/60 Hz
Rated Insulation Voltage (Ui) 1000 V AC
Impulse Withstand Voltage (Uimp) 12 kV
Breaking Capacity Code H2 (~100 kA Icu @ 220/440 V AC)
Service Breaking Capacity (Ics) Up to 100 % of Icu
Network Type AC power distribution, 50/60 Hz
Suitability for Isolation Yes, IEC 60947‑2 compliant
Control / Operation Manual push-button or optional trip unit control
Mounting Type Fixed or draw-out
Protection Functions Depend on installed electronic trip unit (overload, short-circuit, earth fault)
Standards Compliance IEC 60947‑2 and related IEC low-voltage switchgear standards
Typical Applications Main and sub-distribution power panels in industrial/commercial systems