Frame Draw-out Type Circuit Breaker

Frame Draw-out Type Circuit Breaker is mainly applicable to power distribution networks with AC 50Hz, 60Hz, rated operating voltage of 400V to 1140V, and rated current of 200A ~ 6300A. It is used to distribute electric energy and protect lines and power supply equipment from overload, undervoltage, short circuit, grounding and other faults.

The core component of the Frame Circuit Breaker adopts an intelligent controller, which has precise selective protection, can avoid unnecessary power outages, and improve the reliability, continuity and safety of the power supply system.

1. Product Advantages: The Frame Draw-out Type Circuit Breaker produced by SDKC has high breaking capacity, zero arcing, and multiple intelligent protection functions. The product is available in fixed and draw-out types, fully meeting customers' needs for different currents, different breaking capacities, different wiring methods, and different sizes. Functions of the intelligent controller: It has protection functions such as overload long-time inverse time, short-time inverse time, short-time definite time, and instantaneous action. Trip unit types: intelligent controller, undervoltage instantaneous (or delayed) trip unit, shunt trip unit. It has remote communication function.

2. The Frame Draw-out Type Circuit Breaker produced by SDKC needs to undergo strict tests after completion, including overload, withstand voltage, short circuit, protection, appearance, etc., to ensure that the performance meets expectations.

1. Excellent Intelligent Protection Capability

The Frame Draw-out Type Circuit Breaker integrates an intelligent controller, supporting multiple protection functions such as overload, short circuit, undervoltage, and leakage. It has high action accuracy and a response time of ≤20ms. It is equipped with a fault arc detection function, which can early warn the risk of electrical fires. Combined with real-time temperature monitoring (automatic alarm when terminal temperature >75℃), it effectively reduces the accident rate.

2. Remote Monitoring and Data Analysis

It supports multiple communication methods, enabling remote switching on/off, parameter setting, and status query through mobile APP or cloud platform. It collects multiple electrical data such as voltage, current, and power in real time, generates energy consumption reports and fault logs, and helps users optimize energy management.

3. High Reliability and Long-Life Design

The Frame Draw-out Type Circuit Breaker adopts a three-dimensional frame structure, with the contact system and arc extinguishing chamber independently encapsulated. The short-circuit breaking capacity is up to 150kA, and it can withstand a short-time withstand current of 100kA. Key components use silver-plated contacts and high-temperature resistant materials, with a mechanical life of ≥10,000 times, meeting the requirements of long-term stable operation in harsh environments.

4. Flexible Customization and Convenient Maintenance

It provides multiple options for rated current (200A-6300A) and voltage (380V/660V/690V), supporting front/back panel wiring and customized tripping curves. The drawer-type structure design allows maintenance without disassembling the busbar. Combined with Liangxin's patented secondary wiring terminal technology, modules can be quickly replaced, reducing operation and maintenance costs.

Q: What are the precautions for inserting and extracting the draw-out type circuit breaker?

A: Before insertion, confirm that the circuit breaker is in the open state and check that there are no foreign objects on the contacts and guide rails; during operation, push it slowly and steadily to ensure that the contacts are fully engaged; when extracting, first disconnect the power supply of the secondary circuit, then use a special crank to shake the Frame Circuit Breaker to the separated position according to the operation instructions. It is strictly forbidden to force plugging and unplugging in the closed state, otherwise, it may damage the contacts or cause arcs.

Q: What does the daily maintenance of the draw-out type circuit breaker include?

A: 1. Regularly check whether the contact surface is oxidized or ablated. If there is slight damage, it can be polished with sandpaper; 2. Clean the internal dust of the Frame Draw-out Type Circuit Breaker to prevent affecting the insulation performance; 3. Test whether the protection function of the intelligent controller is normal, which can trigger tripping by simulating overload and short-circuit signals; 4. Check whether the secondary circuit wiring is loose to ensure stable communication and control signals.

Q: How to install the Frame Draw-out Type Circuit Breaker?

A: A drawer base (drawing frame) is added on the basis of the fixed type, and the circuit breaker body can be inserted or extracted through the guide rail. The main wiring is completed on the drawer base, and there is no need to modify the main circuit busbar when the body is extracted. The secondary wiring adopts automatic or manual connectors, such as nine-wire connectors, to ensure that the secondary circuit is reliably disconnected or remains connected when extracted.

Q: Does the Frame Draw-out Type Circuit Breaker provide ground fault protection?

A: Some Frame Draw-out Type Circuit Breakers (such as ACB or MCCB with electronic trip units) can provide ground fault protection to detect and cut off ground fault current.

Q: Are you a trading company or a factory? Can we visit your factory?

A: We have our own factory. Of course, you are warmly welcome to visit our factory.

We have a strict product quality inspection process: from the storage of raw materials to the delivery of finished products, each link undergoes strict quality inspection, including dimensional accuracy, electrical performance testing, and environmental adaptability testing, to ensure that each Frame Draw-out Type Circuit Breaker has high reliability. We have an efficient logistics system: the workshop cooperates closely with logistics partners to ensure that products can be delivered to customers quickly.

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