SQUARE D HJ 150

Product Overview The SQUARE D HJ 150 is PowerPact HJ frame moulded case circuit breaker under Square D (Schneider Electric), engineered for low voltage power distribution and motor circuit protection, built to comply with UL 489, IEC and CE electrical standards. Built for low voltage circuit safeguarding, overload current tripping, short-circuit fault interruption, this robust panel-mounted circuit breaker withstands cabinet temperature fluctuation, dust and mechanical vibration, delivers stable 24/7 continuous operation, and serves as core power protection hardware for industrial control panels, generator systems, marine auxiliary switchboards and commercial power distribution networks.

Featuring 150A frame rating, thermal-magnetic trip unit, optional 2-pole or 3-pole configuration, arc quenching chamber & mechanical toggle status indicator. It supports I-Line plug-on or lug connection panel mounting inside low voltage switchgear, adapting to limited installation space in industrial power rooms. The modular assembly allows separate replacement of trip units and auxiliary accessories without full power system shutdown, greatly reducing equipment downtime for service. Equipped with adjustable thermal trip setting, high short-circuit interrupting capacity & embedded mechanical fault indication function, mature hardware structure prevents electrical interference and guarantees dependable power protection performance during continuous duty.

For dependable low voltage circuit safeguarding, overload current tripping, short-circuit fault interruption, HJ 150 continuously monitors load current in the distribution circuit, automatically trips under sustained overload conditions and rapidly cuts off dangerous short-circuit fault current to protect cables, motors and downstream electrical equipment. Reliable low voltage circuit safeguarding, overload current tripping, short-circuit fault interruption, premium industrial-grade insulating and conductive components provide excellent long-term operational stability, extending service life in harsh industrial power cabinet working environments. Practical adjustable thermal trip setting, high short-circuit interrupting capacity & embedded mechanical fault indication function, maintenance technicians can inspect breaker status and conduct protection testing during routine power system maintenance.

During continuous low voltage circuit safeguarding, overload current tripping, short-circuit fault interruption, this moulded case circuit breaker is fully compatible with Square D I-Line panelboards, auxiliary switches, shunt trip coils and industrial power monitoring systems. Stable low voltage circuit safeguarding, overload current tripping, short-circuit fault interruption, mature Square D PowerPact MCCB technology with easy spare parts replacement and convenient after-sales maintenance. Robust adjustable thermal trip setting, high short-circuit interrupting capacity & embedded mechanical fault indication function, simplifies switchboard layout and reduces installation workload for industrial power retrofitting and low voltage distribution system overhaul projects.

Technical Specifications Brand: SQUARE D Model: HJ 150 Product Type: PowerPact HJ Frame Moulded Case Circuit Breaker Mounting: Switchgear panel mount, I-Line plug-on / lug connection Power Supply: Up to 600V AC Communication: Optional auxiliary contact module Function: Overload protection, short-circuit protection, load isolation, circuit switching, fault status indication Protection: Vibration resistance, wide operating temperature, EMC anti-interference, high short-circuit breaking capacity, UL certified Application Field: Industrial LV power distribution, motor protection, generator auxiliary panel, marine auxiliary power system, commercial building power cabinet

Key Features Designed for low voltage circuit safeguarding, overload current tripping, short-circuit fault interruption, panel-mounted moulded case circuit breaker for industrial low voltage power distribution and motor protection application. Adopts 150A HJ frame, thermal-magnetic trip unit, optional 2/3 pole design, arc quenching chamber & mechanical status indicator, switchgear installation simplifies layout and reduces wiring work. Equipped with adjustable thermal trip setting, high short-circuit interrupting capacity & embedded mechanical fault indication function, mounting adapts limited power switchgear cabinet space. Modular structure allows trip unit and accessory replacement without full power distribution system shutdown, cutting downtime. Premium rugged components resist mechanical shock and temperature variation, stable performance under variable workshop and marine conditions and long-hour operation. Spare SQUARE D HJ 150 circuit breaker for retrofitting and overhaul of industrial low voltage power distribution systems.

Application Scope Industrial power protection unit: moulded case circuit breaker performing low voltage circuit safeguarding, overload current tripping, short-circuit fault interruption, protects low voltage power circuits and motor loads for electrical operators. Compact switchgear installation: 150A HJ frame, thermal-magnetic trip, I-Line or lug terminal connection, compact molded casing saves switchboard installation space. Low-maintenance continuous operation: adjustable thermal trip setting, high short-circuit interrupting capacity & embedded mechanical fault indication function, accessory replacement without dismantling the whole breaker assembly. Spare-part maintenance: replacement SQUARE D HJ 150 breaker for overhaul and hardware renewal of industrial low voltage distribution and motor protection systems.

Package & Delivery Each SQUARE D HJ 150 moulded case circuit breaker is packed with shockproof export carton for industrial electrical spare parts shipment. Complete delivery includes HJ 150 main breaker unit; installation manual and maintenance guide are provided for reference. Matching auxiliary contacts, shunt trip coils and mounting accessories are available as optional spare parts.