DINKONDA GLOBAL Power Plants Special GM5FB Series 10kA/20kA Breaking Ability，65A/250A/800A Shell Level Rated Current, DC Small Circuit Breaker Switch

DINKONDA GLOBAL Power Plants Special GM5FB Series 10kA/20kA Breaking Ability,65A/250A/800A Shell Level Rated Current, DC Small Circuit Breaker Switch

Product Overview

The GM5FB series DC miniature circuit breaker is a modular DC protection component that adopts a standard DIN rail installation structure. It is a 2P specification with a maximum frame current of 63A. The product is designed specifically for DC circuits and integrates overload long delay protection and short-circuit instantaneous protection functions. It can provide fault protection for DC distribution lines and DC loads, as well as have on/off and isolation functions. Widely used in small energy storage systems, photovoltaic DC branches, UPS DC side, DC control cabinets, and other scenarios as terminal DC circuit protection components.

Structural Composition

1. * * Flame retardant shell and modular body**
The shell is made of high-strength temperature resistant and flame retardant engineering plastics, with excellent insulation performance, arc resistance and aging resistance. The product is a modular small structure that meets the national standard modular size and supports quick clamping with standard 35mm DIN rails, making disassembly and assembly convenient.

2. * * Bipolar contact and DC dedicated arc extinguishing chamber**
Two pole linkage operation, internally equipped with arc extinguishing grid components adapted to DC arc characteristics. Optimize the arc extinguishing structure based on the zero crossing characteristics of DC without current, quickly cool and extinguish short-circuit arcs, effectively suppress arc reignition, and ensure reliable interruption during DC circuit short circuits. Two pole synchronous opening and closing can simultaneously cut off the positive and negative DC poles, improving maintenance safety.

3. * * Thermal Magnetic Release Protection Unit**
Adopting a thermal magnetic integrated release mechanism: bimetallic plates achieve overload long delay protection; Electromagnetic release realizes short-circuit instantaneous protection. C-type protection curve, suitable for resistive loads and low impact inductive DC loads.

4. * * Manual operating mechanism**
Integrated black operating handle with ON logo on the panel, clearly indicating the closing and opening status; The handle is linked with two poles of contacts, and the mechanical action is stable and reliable. It can manually complete the connection and disconnection of the circuit.

5. * * Terminal block assembly**
The upper and lower ends are equipped with locking type wiring screw terminals, suitable for multi strand copper wires and single strand hard wires, with tight wiring and low contact resistance, reducing the risk of long-term heating during operation; A transparent protective cover plate is installed above the terminal to enhance the safety protection level and prevent accidental contact with live terminals.

Product Features

1. * * DC dedicated arc extinguishing design, safe and reliable breaking**
Specially optimized for DC working conditions, the arc extinguishing system solves the problem of difficult extinguishing of DC arcs and has qualified short-circuit breaking capability, which can safely cut off DC side short-circuit faults. Bipolar synchronous disconnection, with both positive and negative poles simultaneously disconnected, forming a complete isolation breakpoint.

2. * * C-type protection curve, suitable for various DC loads**
C-type trip characteristics, suitable for photovoltaic branches, energy storage auxiliary power, DC control circuits, etc., slow tripping due to overload, instantaneous action due to short circuit, effectively protecting cables and backend DC equipment.

3. * * Standard rail installation, flexible cabinet layout**
Modular small volume, card mounted guide rail installation, can be densely arranged in DC combiner boxes and control cabinets, saving cabinet space and facilitating complete equipment integration.

4. * * High flame retardant insulation shell with good environmental adaptability**
The shell has high flame retardant grade, temperature resistance and aging resistance, is suitable for indoor power distribution cabinet environment, can withstand conventional temperature and humidity fluctuations, and has certain dust resistance ability.

5. * * Transparent terminal protective cover**
Comes with a transparent protective cover to cover the wiring terminals, preventing personnel from accidentally touching live parts and improving on-site operation safety.

6. * * Mechanical linkage is stable and can achieve maintenance isolation**
The opening position has a clear disconnection point, which can be used as an isolation breakpoint under no-load conditions to meet the power outage isolation requirements for equipment maintenance.

Technical Parameters

-Product Model: GM5FB Series (Example GM5FB-63 C63, 2P)
-Product type: DC miniature circuit breaker
-Number of poles: 2 poles
-Release curve: C-type
-Rated current range: 1~63A
-Installation method: 35mm DIN rail card mounting
-Protection functions: overload thermal protection, short-circuit instantaneous electromagnetic protection
-Operation mode: manual operation
-Shell material: Flame retardant engineering plastic
-Additional configuration: Transparent terminal protective cover

FAQ:
Q1.What about the lead time?
A: 5-7 days for Sample preparing ,15-20 working days for mass production.

Q2. Is it OK to print my logo on led light product?
A: Yes. Please inform us formally before our production.

Q3: Do you offer guarantee for the products?
A: Yes, we offer 1 years warranty to our products.

Q4: How to deal with the faulty?
A: Firstly, Our products are produced in strict quality control system and the defective rate will be less than 0.2%.

Secondly, during the guarantee period, we will send new lights with new order for small quantity. For defective batch products, we will repair them and resend them to you or we can discuss the solution including re-call according to real situation.

Company Profile

DINKONDA GLOBAL has been developing and supplying equipment and components for specialized thermal power plants and related industries for 20 years and is one of the a market-leading global manufacturers and providers in the industry. We have a professional technical research and development team, professional management talents and dozens of quality inspection personnel. The company has more than 50 CNC machining centers, CNC lathes, various inspection equipment and other professional equipments.
Our comprehensive product portfolio and over 20 years of industry knowledge mean customers can rely on us to deliver innovative, reliable and economic products. Chenglei products are designed and manufactured with quality components and clear user interfaces for quick and safe operation in the field. Our strict product development and testing ensures long-lasting performance and continued reliability. Our independently developed and produced CL series valve electric actuators are widely used in various industries such as Oil & Gas, Water & Power, and Chemical, Process & Industrial .
Customers rely on us for innovative, high quality and dependable products for managing the flow of liquids, gases and powders. We help customers around the world to reduce emissions, improve efficiency, minimize their environmental impact and assure safety.