For over a decade, Jinhand has solidified its reputation as a top-tier China Manufacturer and Supplier of electrical equipment. Our factory integrates advanced technologies—including fully automated assembly lines, robotic processes, and rigorous ISO 9001 quality management—to deliver products that meet and exceed international standards like IEC, GB, and CE. We offer a one-stop solution with:
In-house production of core components (contacts, coils, housings, electronic PCBs) ensures quality control and supply chain stability.
Products are certified (CCC, CE) and designed to perform reliably across diverse climates and grid conditions.
Competitive pricing without compromising on performance, offering significant value for large-scale projects and routine replacements.
Multilingual documentation, pre-sales configuration tools, global spare parts networks, and partnerships with international logistics providers for seamless delivery.
Selecting the appropriate component requires a systematic assessment of your system's needs:
Identify the primary use: motor protection, main distribution feeder protection, branch circuit protection, personnel safety (earth leakage), or automatic backup power switching.
Key specifications include:
Match the component to your system voltage (e.g., 230V, 400V, 690V).
Choose a frame current that exceeds the maximum continuous load current.
Must be higher than the prospective short-circuit current at the installation point to safely interrupt faults.
List required protections: overload (L), short-circuit (S/I), ground fault (G), undervoltage, etc.
For modern systems, evaluate the need for communication interfaces (Modbus, Profibus), remote monitoring/control capabilities, and compatibility with existing automation platforms.
Account for ambient temperature range, altitude, enclosure protection rating (IP), and mounting style (DIN rail, fixed panel).
Our extensive Low Voltage Components portfolio is designed to cover every critical function in an electrical system. Here are three of our flagship categories:
The JHW1 series represents the pinnacle of smart protection for demanding power distribution networks up to 1140V and 6300A.
Full-range intelligent protection (overload, short-circuit, undervoltage, ground fault), selective tripping to minimize outage scope, and open communication interfaces (Modbus, Profibus) for integration into SCADA systems.
The JHM1E series combines the flexibility of electronic protection with a compact design, suitable for systems up to 690V and 800A.
Programmable protection parameters (current, time, curves), optional residual current and phase-loss protection, "Z"/"B" models with communication for remote control, and adaptive ambient temperature compensation.
Offers M-Type (Higher Breaking) and H-Type (High Breaking) options, with Icu up to 100kA at 400V. Features an LCD display for on-site parameter setting and event logging.
Ideal for commercial buildings, data center power distribution, and industrial control panels where precise protection and space savings are crucial.
Jinhand's ATS solutions ensure uninterrupted power for critical loads by automatically switching between main and backup sources.
Compact, intelligent switches (16A-1250A) with microprocessor control. Supports automatic/manual/remote modes, features phase loss detection, and offers optional communication for building management systems. Switching time is typically ≤5-6 seconds.
Integrated electromechanical devices (100A-3200A) with a robust fiberglass enclosure. Features zero-crossing switching to reduce inrush, dual electrical/mechanical interlocks for safety, and supports a wide range of utilization categories (AC-31A to AC-35A).
Beyond the core products, our complete Low Voltage Components catalog includes:
Reliable thermal-magnetic protection for circuits up to 1250A, ideal for motor starting and infrequent switching.
Integrate earth leakage protection with overcurrent protection. Available in a wide range of sensitivities (30mA-1000mA) for personnel safety and fire prevention.
The fundamental protection for final circuits. Compact (18mm per pole), with B/C/D tripping curves, 4.5kA/6kA breaking capacity, and CCC/CE certification.
An innovative, space-saving device that combines the functions of a contactor, circuit breaker, and thermal relay into one unit. Programmable for motor protection (0.05KW-55KW) with adjustable current settings from 0.16A to 125A.
Provide safe, visible isolation for maintenance. Modular design from 125A to 3150A, with clear front status windows and optional rear observation windows for cabinet mounting.
Our manufacturing edge guarantees the reliability of every Low Voltage Component:
Utilization of SMT lines for electronics, automated robotic assembly, laser marking, and 100% end-of-line testing (withstand voltage, characteristic trip, communication).
Every product series undergoes full type testing—temperature rise, short-time withstand current, mechanical/electrical life, and EMC—as per international standards.
Use of high-strength, flame-retardant, recyclable plastics and lead-free, halogen-free processes for internal components.
Full-process MES and barcode systems allow traceability from raw material batches to the finished product serial number.
We provide end-to-end support to ensure successful project implementation:
Free technical consultation, product selection tools, and customized configuration assistance.
Detailed multilingual manuals (EN/CN), wiring diagrams, installation videos, and torque specifications.
Dedicated service hotline, remote fault diagnosis, on-site training, and a global network of spare parts warehouses for rapid response.
Industrial-grade, moisture-resistant packaging, flexible shipping terms (DDP/DAP), and partnerships with global freight forwarders for door-to-door delivery.
For over a decade, Jinhand has been at the forefront of electrical equipment manufacturing in China. Our commitment to quality, innovation, and customer service makes us the ideal partner for your next project. Whether you need a single component or a complete system solution, our team is ready to provide you with top-tier, competitively priced Low Voltage Components manufactured in our state-of-the-art factory.
Contact Jinhand today to discuss your requirements and request a quotation.Explore how our reliable, intelligent, and cost-effective Low Voltage Components can enhance the safety, efficiency, and uptime of your electrical installations.
