MCB

JCB2-40M Miniature Circuit Breaker 6kA 1P+N

JCB2-40M Miniature Circuit Breaker 6kA 1P+N

The JCB2-40 miniature circuit breaker is designed for use in a wide range of applications including domestic installations, commercial environments and industrial distribution systems. The unique design of these circuit breakers focuses on ensuring user safety and protection of the electrical system. They have features such as short circuit and overload protection, a breaking capacity of up to 6kA, and are equipped with contact indicators for added convenience. The 1P+N-in-one module design allows for flexibility and ease of installation, and these breakers can be customized to handle current ratings from 1A to 40A. In addition, they are available in B, C or D curve options to meet specific application requirements. Importantly, these circuit breakers comply with the IEC 60898-1 standard, guaranteeing their quality and reliability.

Product Details

Introduction

JCB2-40M is a low voltage miniature circuit breaker (MCB) with advanced protection features. This 1P+N circuit breaker is 1 module wide (18 mm) and is designed to protect individuals and equipment from electrical hazards. It provides reliable overload current and short circuit protection as well as switching functionality. The JCB2-40M circuit breaker's quick closing mechanism and high performance limits help extend its service life.

The JCB2-40M MCB is equipped with thermal and electromagnetic releases that respond to overloads and provide short circuit protection. The short-circuit breaking capacity under 230V/240V AC is up to 6kA, complying with IEC60897-1 and EN 60898-1 standards. In addition, it complies with the industrial standard EN/IEC 60898-1 and the residential standard EN/IEC 60947-2. JCB2-40M circuit breaker has a rated electrical life of up to 20,000 times and a mechanical life of up to 20,000 times.

The circuit breaker is compatible with pin power bus/DPN pin bus and is designed for 35mm DIN rail mounting. Its terminal protection level is IP20 according to IEC/EN 60529 standard. Operating temperature range is -25°C to 70°C, storage temperature range is -40°C to 70°C. The operating frequency is 50Hz or 60Hz, the rated insulation voltage of Ui is 500VAC, and the rated impulse withstand voltage of Uimp is 4kV.

The JCB2-40M circuit breaker is a versatile solution with B, C and D trip characteristics, providing flexibility to meet various application requirements. Equipped with red and green contact position indicators, which can effectively communicate the device status, increasing convenience and safety.

This circuit breaker is designed for a wide range of applications, including overload and short-circuit protection of lighting, distribution lines, and equipment in office buildings, residences, and similar structures. Can also be used for infrequent switching operations and line transfers. Its versatility makes it suitable for use in a variety of environments including industrial facilities, commercial spaces, high-rise buildings and residential properties.

JCB2-40M circuit breakers are specially designed to protect circuits from overloads and short circuits. Its upstream and downstream bi-stable DIN rail latches facilitate easy mounting to DIN rail, providing a safe and secure installation. Additionally, an integrated locking device on the toggle allows the circuit breaker to be locked in the off position, enhancing safety and providing a safe working environment for all personnel. This feature allows the insertion of 2.5-3.5 mm cable ties and the attachment of warning cards if necessary.

Like all our company's products, the JCB2-40M circuit breaker comes with a 5-year warranty, giving our customers peace of mind. This warranty ensures that if a fault occurs within five years, we will cover the cost of replacement of the product and its installation by an authorized electrician. In other words, we stand behind our products and are committed to providing our customers with reliable and long-lasting solutions.

Product Description

The most important features

● Highly compact design - only 1 module, width 18mm, 1P+N is located in one module, which can effectively utilize the space of distribution board and distribution board.

● Provide reliable short circuit and overload protection to protect electrical systems and equipment from potential damage.

● The rated switching capacity in accordance with IEC/EN 60898-1 is 6 kA, ensuring safe interruption of fault currents under specified conditions.

● Supports rated current up to 40A to meet a wide range of electrical load requirements for various applications.

● Trip characteristics B and C are available, allowing customization to specific application requirements and load types.

● The mechanical life span reaches 20,000 times and the electrical life span reaches 4,000 times, ensuring long-term durability and reliability.

● Equipped with contact position indicator, green means "OFF", red means "ON", the status indication is clear at a glance.

● Meets the insulation coordination requirements, the safety distance between contacts is ≥4mm, and complies with safety standards.

● It can be flexibly installed on the top or bottom busbar as needed, providing installation versatility.

● Compatible with front-out power supply bus/DPN bus, providing compatibility with different types of bus systems.

● It has a tightening torque of 2.5N to ensure a firm and reliable connection during installation.

● Can be installed quickly and easily on 35mm DIN rail (IEC60715), simplifying the installation process and saving time.

● Comply with IEC 60898-1 standard to ensure that circuit protection devices comply with international safety and performance standards.

Technical Data

●Standards: Comply with IEC 60898-1 and EN 60898-1 standards to ensure compliance with international safety and performance requirements.

● Rated current: 1A, 2A, 3A, 4A, 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A, 80A, multiple options to meet different electrical load needs.

● Rated working voltage: Supports multiple rated working voltages such as 110V, 230V, 240V, etc., providing flexibility for different electrical systems and applications.

● Rated breaking capacity: It has a high rated breaking capacity of 6kA, ensuring that fault current can be safely broken under specified conditions.

● Insulation voltage: rated 500V, ensuring sufficient insulation protection of the circuit breaker.

● Rated impulse withstand voltage (1.2/50): It can withstand 4kV rated impulse voltage and provides surge and transient voltage protection.

● Thermomagnetic release characteristics: There are three options: B curve, C curve, and D curve, which can be customized according to specific application requirements.

● Mechanical life: The mechanical life is up to 20,000 operating cycles, ensuring long-term durability and reliability under various working conditions.

● Electrical life: The electrical life is 4000 operating cycles, providing consistent performance over an extended period of time.

● Protection level: IP20, which means it can protect solid objects larger than 12mm, and can protect fingers or similar objects.

● Ambient temperature: Suitable to operate within the ambient temperature range of -5°C to +40°C, with the daily average temperature not exceeding 35°C, ensuring reliable performance under various environmental conditions.

● Terminal connection method: Supports cable and pin busbar connections, with flexible installation and connection methods.

● Installation: It can be easily installed on DIN rail EN 60715 (35mm) using the quick clamp device, simplifying the installation process and saving time.

● Recommended torque: The recommended torque is 2.5Nm to ensure a firm and reliable connection during installation.

Technical Data

Technical data:

●Standards: Comply with IEC 60898-1 and EN 60898-1 standards to ensure compliance with international safety and performance requirements and provide quality and reliability assurance.

● Rated current: 1A, 2A, 3A, 4A, 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A, 80A, multiple options to meet the electrical load needs of various occasions. app.

● Rated working voltage: Supports multiple rated working voltages such as 110V, 230V, 240V, etc., providing flexibility for different electrical systems and applications, ensuring compatibility with multiple voltage requirements.

● Rated breaking capacity: It has a high rated breaking capacity of 6kA, ensuring the ability to safely break fault currents under specified conditions and providing reliable protection for electrical systems and equipment.

● Insulation voltage: rated 500V, ensuring sufficient insulation protection of the circuit breaker, which is conducive to the safety and reliability of electrical installation.

● Rated impulse withstand voltage (1.2/50): It can withstand a rated impulse voltage of 4kV, provides surge and transient voltage protection, and ensures the durability and robustness of the circuit breaker.

● Thermal magnetic tripper characteristics: There are B curve, C curve, and D curve to choose from, which can be customized according to specific application requirements to ensure accurate and reliable tripping characteristics.

● Mechanical life: The mechanical life is up to 20,000 operating cycles, ensuring long-term durability and reliability under various working conditions, which is beneficial to the service life of the circuit breaker.

● Electrical life: The electrical life is up to 4,000 times, and the long-term performance is stable, ensuring the reliability and service life of the circuit breaker.

● Protection level: IP20, which means it can protect solid objects larger than 12mm, and can protect fingers or similar objects to ensure the high safety of the circuit breaker.

● Contact position indicator: It has a clear and intuitive indicator, green means "OFF" and red means "ON", providing intuitive status indication to increase convenience and safety.

● Terminal connection method: Supports cable and pin busbar connections, flexible installation and connection methods, and compatible with various wiring methods.

● Installation: Conveniently installed on DIN rail EN 60715 (35mm) via quick clamp device, simplifying the installation process and saving time, and ensuring a safe and reliable installation solution.

● Recommended torque: The recommended torque is 2.5Nm to ensure a firm and reliable connection during installation, which is beneficial to the overall safety and performance of the circuit breaker.

	Standard	IEC/EN 60898-1	IEC/EN 60947-2
Electrical features	Rated current In (A)	1, 2, 3, 4, 6, 10, 16,
		20, 25, 32, 40, 50, 63,80
	Poles	1P, 1P+N, 2P, 3P, 3P+N, 4P	1P, 2P, 3P, 4P
	Rated voltage Ue(V)	230/400~240/415
	Insulation voltage Ui (V)	500
	Rated frequency	50/60Hz
	Rated breaking capacity	10 kA
	Energy limiting class	3
	Rated impulse withstand voltage(1.2/50) Uimp (V)	4000
	Dielectric test voltage at ind. Freq. for 1 min (kV)	2
	Pollution degree	2
	Power loss per pole	Rated current (A)
		1, 2, 3, 4, 5, 6, 10,13, 16, 20, 25, 32,40, 50, 63, 80
	Thermo-magnetic release characteristic	B, C, D	8-12In, 9.6-14.4In
Mechanical features	Electrical life	4, 000
	Mechanical life	20, 000
	Contact position indicator	Yes
	Protection degree	IP20
	Reference temperature for setting of thermal element(℃)	30
	Ambient temperature (with daily average ≤35℃)	-5...+40
	Storage temperation (℃)	-35...+70
Installation	Terminal connection type	Cable/U-type busbar/Pin-type busbar
	Terminal size top/bottom for cable	25mm2 / 18-4 AWG
	Terminal size top/bottom for Busbar	10mm2 / 18-8 AWG
	Tightening torque	2.5 N*m / 22 In-Ibs.
	Mounting	On DIN rail EN 60715 (35mm) by means of fast clip device
	Connection	From top and bottom
Combination with accessories	Auxiliary contact	Yes
	Shunt release	Yes
	Under voltage release	Yes
	Alarm contact	Yes

When selecting the right type of circuit breaker for a specific application, several key criteria must be considered to ensure optimal performance and safety. The following three criteria must be considered:

1) Current limiting level (=selectivity level)

MCBs are classified into current-limiting (selective) Level 1, Level 2 and Level 3 based on off-time under short circuit conditions. These categories determine the circuit breaker's ability to limit the magnitude of short-circuit current and provide selectivity in the distribution system. Category 1 offers the highest selectivity, while Category 3 offers the lowest selectivity. Understanding selectivity levels is critical to ensuring proper coordination and protection within electrical installations.

2) Rated current

The rated current of a circuit breaker indicates the current value that the MCB can permanently withstand at an ambient temperature of 30°C, especially in residential and commercial applications. It is important to select a circuit breaker with an ampere rating that matches the specific electrical load requirements of the application to ensure reliable and safe operation.

3) Trip characteristics

Circuit breakers with Type B and Type C trip characteristics are the most common types as they are the standard for residential and commercial applications. The tripping characteristics determine the circuit breaker's response to overcurrent. Characteristic B is suitable for circuits with mainly resistive loads, while characteristic C is suitable for circuits with mixed resistive loads and inductive loads. Understanding the tripping characteristics is critical to ensuring that a circuit breaker provides effective overload and short-circuit protection in a specific application.

By carefully considering these criteria, the most appropriate circuit breaker can be selected for a specific application, ensuring optimal performance, safety and protection of electrical systems and equipment.