Schneider NW50H23PEDO6.0A Air Circuit‑Breaker Unit

Module Feature

NW50H23PEDO6.0A is Schneider MasterPact NW‑series draw‑out type low‑voltage air circuit breaker. Model decoding: NW50 = frame size 5000A; H2 = high short‑circuit breaking capacity; 3 = 3‑pole; PED = draw‑out chassis; O = without over‑voltage release; 6.0A = Micrologic 6.0A electronic protection trip unit. Rated current 5000A. Micrologic 6.0A provides LSIG multi‑function protection: long‑time overload, short‑time delay, instantaneous short‑circuit and ground‑fault protection. Draw‑out trolley structure supports working / test / isolated position switching, convenient for inspection, maintenance and spare‑part replacement. Widely applied for main incoming power supply, bus tie and large‑capacity load protection in industrial and commercial low‑voltage power distribution rooms.

Working principle

Under overload or short‑circuit fault condition, Micrologic 6.0A protection unit detects abnormal current value and sends tripping command. Operating mechanism drives main contacts to open, arc is quenched inside arc‑chamber to cut‑off fault circuit and protect downstream transformers, busbars and loads. Supports manual / electrical closing‑opening operation, with anti‑jump and mechanical interlock functions.

Onboard components

Arc‑chamber assembly, spring energy‑storage operating mechanism, draw‑out trolley chassis, main contact assembly, secondary control terminal block, mechanical ON/OFF / test‑position indicator, Micrologic 6.0A electronic protection unit, status LED panel, metal draw‑out housing.

LED indicators

Front‑panel LED indicators display power‑on, alarm, overload pre‑warning, fault‑trip information; Micrologic 6.0A screen shows measured current, protection parameters and fault records.

Hardware self‑diagnosis

Micrologic 6.0A performs self‑check for current‑sensor anomaly, internal hardware fault. Stores fault trip event records; measured value and diagnostic information can be read locally or via communication.

Programming software

Protection parameters can be set on Micrologic 6.0A local panel; use Schneider EcoStruxure Power software for remote parameter configuration, event‑log reading and communication management.

Electrical & Process Parameters

Model:NW50H23PEDO6.0A Brand:Schneider Electric Device type:Draw‑out Air Circuit Breaker Frame / Rated In:5000A Pole:3‑pole Trip unit:Micrologic 6.0A (LSIG + ground‑fault protection) Breaking capacity:H2 grade Ue:690V AC Function:Overload, short‑circuit, ground‑fault protection for low‑voltage main incoming‑feed and busbar system

Mechanical & Structure

Mounting:Draw‑out trolley installation inside low‑voltage switchgear cubicle Protection class:IP20 (cabinet overall protection grade) Housing:Heavy‑duty metal draw‑out trolley assembly

Environmental

Operating temperature:-5℃ ~ +40℃ Storage temperature:-40℃ ~ +85℃ Ambient humidity:5~95% non‑condensing Certification:Compliant with IEC 60947‑2 standard Status:Schneider original MasterPact NW‑series air circuit breaker

Installation

Push draw‑out trolley into switchgear cabinet and lock at working or test position. Complete secondary control wiring. Set LSIG protection threshold parameters on Micrologic 6.0A. Execute manual / electric closing‑opening test, then commission whole power‑distribution system.

Interface

Main‑circuit tulip contacts, secondary control wiring terminals, Modbus communication port, mechanical interlock interface.

Diagnostic

Cannot close:Energy‑storage incomplete, interlock condition not satisfied or closing‑coil damage. Trip‑on overload:Over‑load actual current exceeds long‑time protection setting. Short‑circuit trip:Instantaneous protection triggered, need check downstream short‑circuit fault. Ground‑fault alarm:Ground‑fault protection actuated, inspect equipment insulation condition.

Product Brief

Schneider NW50H23PEDO6.0A draw‑out air circuit breaker,5000A 3‑pole, equipped with Micrologic 6.0A LSIG ground‑fault protection unit, used for main incoming‑feed and busbar protection of large‑capacity low‑voltage power‑distribution system.