Intelligent Molded Case Circuit Breaker

JHW1 Intelligent Molded Case Circuit Breaker from China's Jinhand Electrical offers versatile protection for AC 50Hz/60Hz networks up to 1140V and 6300A. This factory-direct solution provides smart overload, short-circuit, undervoltage, and ground-fault protection with selective tripping and remote automation via an open communication interface. As a reliable manufacturer and supplier, we ensure reliable power distribution and enhanced operational safety.

Advantages

1.Intelligent Protection: Features precise selective tripping to enhance power supply reliability and prevent unnecessary outages.
2.Wide Current Range: Supports rated currents from 200A to 6300A, making it suitable for various power distribution needs.
3.Remote Functionality: Equipped with an open communication interface for remote control, signaling, measurement, and adjustment, facilitating integration with automation systems.

MAIN TECHNICAL PARAMETERS

Main Features

1.Rated Specifications: Suitable for AC 50Hz/60Hz power distribution networks with rated voltages up to 400V to 1140V.
2.Comprehensive Fault Protection: Protects against overload, under-voltage, short-circuit, and single-phase ground faults, safeguarding electrical lines and equipment.
3.High Impulse Withstand Voltage: Capable of withstanding impulses of 8000V at 2000 meters altitude, adjustable for different altitudes (maximum 12000V).
4.Isolator Functionality: Can function as an isolator when not equipped with an intelligent controller or sensors, ensuring versatility in applications.

Product Highlights

1.Full-Current Range Intelligent Protection: Covers the entire current range from 200A to 6300A, integrating overload, short-circuit, under-voltage, and ground fault protection.
2.Smart Selective Tripping: Features time-current discrimination for selective coordination between upstream and downstream protection, minimizing fault outage areas and enhancing power supply continuity.
3.Open Communication Interface: Supports protocols such as Modbus, Profibus, and DeviceNet, enabling remote monitoring, parameter setting, and fault diagnosis.
4.High Breaking Capacity: Maximum short-circuit breaking capacity up to 120 kA (400V systems), suitable for demanding power distribution environments.

Operational Cost Optimization

1.Intelligent Alerts and Condition Monitoring: Built-in sensors for temperature, current, and fault waveform recording support predictive maintenance and reduce unexpected failures.
2.Modular Plug-and-Play Design: Intelligent controllers, communication modules, and auxiliary contacts are pluggable for quick replacement, minimizing maintenance downtime.
3.Long Electrical and Mechanical Life: Electrical life up to 7,500 operations, mechanical life up to 15,000 operations, significantly reducing replacement frequency.
4.Power Quality Monitoring Function: Optional power quality analysis module for real-time monitoring of harmonics and voltage fluctuations, aiding energy efficiency management.

Logistics & Installation

1.Standardized Compact Packaging: Industrial-grade shock and moisture-resistant packaging with clear labeling, suitable for pallet or container shipping.
2.Ready-to-Install Design: Pre-configured and functionally tested before shipment, supports DIN rail or fixed mounting with clearly marked terminals.
3.Flexible Mounting Options: Supports vertical or horizontal installation, compatible with various distribution panels, withdrawable units, and fixed compartment switchgear.
4.Global Logistics Network: Partners with professional logistics providers for door-to-door delivery, customs clearance, and localized support.

Durability & Stability

1.High Protection Rating Design: Enclosure protection rating up to IP40 (IP54 when installed in cabinets), dust and finger-safe, suitable for industrial environments.
2.High-Altitude Electrical Performance: Maintains 8,000V impulse withstand voltage at 2,000 meters altitude, adjustable up to 12,000V for high-altitude applications.
3.Wide Operating Temperature Range: Reliable operation from -25℃ to +70℃, with an even broader storage temperature range for global climate adaptability.
4.Strong Interference Immunity: Electromagnetic compatibility complies with IEC 60947-2, resistant to surge and fast transient interference.

Production Process Advantages

1.Fully Automated Assembly and Testing Lines: Key processes use robotic assembly with integrated visual inspection and laser marking.
2.Rigorous Type Testing Validation: Each product series undergoes full type tests including temperature rise, short-time withstand, lifespan, and EMC testing.
3.Eco-Friendly Material Application: Enclosure made of high-strength, flame-retardant, arc-resistant plastic; internal metal parts feature silver or tin plating.
4.Full-Process Quality Traceability: MES system enables comprehensive data recording and traceability from raw materials to finished products.

FAQ

1.Is it suitable for DC systems?
This series is designed for AC systems only; dedicated DC circuit breaker models are required for DC applications.
2.Can the intelligent controller be upgraded on-site?
Supports firmware online upgrades via communication interfaces or USB ports.
3.Are heat dissipation considerations needed during installation?
Adequate ventilation space above and below is recommended; avoid dense clustering of multiple units to ensure heat dissipation and performance.
4.Does it support balanced four-pole protection?
Four-pole models offer neutral pole rated current options of 50% or 100%, with full-pole protection support.
5.Are communication interfaces isolated?
Communication interfaces feature optocoupler isolation for strong interference immunity and long-distance transmission.

Contact us

Through over a decade of consistent growth, Jinhand ranks among China’s prominent manufacturers and suppliers of electrical equipment. Our factory has adopted numerous state-of-the-art technologies and facilities, and we invite you to procure our high-quality, cost-effective products manufactured in China.