RCCB

2 Pole RCD residual current circuit breaker Type AC or Type A RCCB JCRD2-125

JCR2-125 RCD is a sensitive current breaker designed to protect the user and their property from electric shock and potential fires by breaking the current as is passes through your consumer unit/ distribution box in the event of a detected imbalance or disruption to current path.

Product Details

Introduction

A residual-current device (RCD), residual-current circuit breaker (RCCB) is an electrical safety device that quickly breaks an electrical circuit with leakage current to ground. It is to protect equipment and to reduce the risk of serious harm from an ongoing electric shock. Injury may still occur in some cases, for example if a human receives a brief shock before the electrical circuit is isolated, falls after receiving a shock, or if the person touches both conductors at the same time.

JCR2-125 are designed to disconnect the circuit if there is a leakage current.

JCR2-125 Residual current devices (RCDs) prevent you from receiving fatal electric shocks. RCD protection is life-saving and protects against fires. If you touch a bare wire or other live components of a consumer unit, it will keep the end user from being harmed. If an installer cuts through a cable, residual current devices will switch off the power flowing to the earth. The RCD would be used as the incoming device which feeds the electrical supply to the circuit breakers. In the event of an electrical in-balance, the RCD trips out and disconnects the supply to the circuit breakers.

A residual current device or better known as an RCD is a key safety device in the electrical world. An RCD is used primarily to protect a human being from a hazardous electrical shock. If there is a defect with an appliance in the household, the RCD reacts because of the power surge and disconnects the electric current. The RCD is fundamentally designed to respond quickly. The residual current device oversees the electric current and the instant of any abnormal activity the device rapidly reacts.

RCD's exist in various different forms and react differently depending on the presence of DC components or different frequencies. The level of safety they provide for live currents is greater than an ordinary fuse or circuit breaker. The following RCD's are available with the respective symbols and the designer or installer is required to select the appropriate device for the specific application.

Type S (Time-delayed)

A Type S RCD is a sinusoidal residual current device incorporating a time delay. It can be installed upstream from a Type AC RCD to provide selectivity. A time-delayed RCD cannot be used for additional protection because it will not operate within the required time of 40 mS

Type AC

Type AC RCDs (General Type), which are most commonly installed in dwellings, are designed to be used for alternating sinusoidal residual current to protect equipment which is resistive, capacitive or inductive and without any electronic components.

General Type RCDs do not have a time delay and operate instantaneously on detection of imbalance.

Type A

Type A RCDs are used for alternating sinusoidal residual current and for residual pulsating direct current up to 6 mA..

Product Description

1-22v0k

Main Features

●Electromagnetic type, reliable operation

● Provide leakage protection to prevent the risk of electric shock

● High breaking capacity up to 6kA, enhanced safety

● Current ratings up to 100A, including 25A, 32A, 40A, 63A, 80A and 100A options

● 30mA, 100mA and 300mA trip sensitivity options for customized protection

● Available in Type A or AC configuration options to meet specific requirements

● Positive status indication contacts for easy monitoring

● Designed for 35mm DIN rail installation, easy to install

● Flexible installation, you can choose to connect the line from the top or bottom

● Comply with IEC 61008-1 and EN61008-1 quality and safety assurance standards

These key features underline the product's versatility and reliability, making it suitable for a wide range of applications. The electromagnetic type ensures continued reliable operation, while leakage protection and high breaking capacity contribute to a safer electrical environment. The device has multiple current rating and trip sensitivity options and can be customized to meet specific needs. Additionally, positive status indication contacts and flexible mounting options enhance convenience and ease of use. In addition, compliance with IEC and EN standards emphasizes the product's commitment to quality and safety.

Tripping sensitivity

Trip sensitivity is a key aspect of residual current devices (RCDs) and plays a key role in providing targeted protection against various electrical hazards. Different trip sensitivity options provide specific levels of protection to address different types of risks.

At 30mA, the RCD provides additional protection against direct contact, ensuring that even minimal leakage currents quickly trigger a disconnect to prevent electric shock.

When set to 100mA, the RCD coordinates with the grounding system according to the formula I△n<50/R to provide indirect contact protection. This setup ensures that any imbalance in the electrical system is quickly detected and the circuit is isolated to prevent potential harm.

At 300mA, the RCD provides protection against indirect contact and fire hazards. This higher level of sensitivity ensures that any abnormal current flow that could result in a fire hazard is quickly addressed by opening the circuit.

By offering these different trip sensitivity options, RCDs can be customized to provide targeted protection against specific electrical risks, thereby enhancing overall safety in a variety of applications.

Technical Data

●Standards: Comply with IEC 61008-1 and EN61008-1 to ensure compliance with international safety and quality standards.

● Type: Electromagnetic type is available, with the option of detecting leakage A or AC waveforms, providing flexibility to meet specific requirements.

● Number of poles: Two configurations, 2 poles and 1P+N, are provided to meet a variety of installation needs.

● Rated current: Provides a variety of rated currents such as 25A, 40A, 63A, 80A, 100A, etc. to meet various application needs.

● Rated working voltage: supports different rated working voltages such as 110V, 230V, 240V~ (1P+N), etc. to ensure compatibility with different electrical systems.

● Rated sensitivity I△n: Provides trip sensitivity options of 30mA, 100mA, and 300mA, which can provide customized protection for different types of electrical hazards.

● Rated breaking capacity: The rated breaking capacity is up to 6kA, with reliable performance and higher safety.

● Insulation voltage: Provides 500V insulation voltage to ensure the overall safety and reliability of the equipment.

● Rated frequency: supports 50/60Hz rated frequency, suitable for use in various electrical systems.

● Rated impulse withstand voltage (1.2/50): It can withstand the rated impulse withstand voltage of 6kV, ensuring the ability to withstand surges and transients.

● Pollution Level: Designed to withstand pollution level 2, making it suitable for a variety of environmental conditions.

● Mechanical life: The mechanical life is up to 2000 times, ensuring durability and long-term performance.

● Electrical life: The electrical life is up to 2000 times, ensuring long-term stable and reliable operation.

● Protection level: IP20 protection level, which can prevent solid objects from entering and ensure the safety of the indoor environment.

● Ambient temperature: Suitable for operation in ambient temperatures from -5°C to +40°C, with the daily average temperature not exceeding 35°C, ensuring versatility under different environmental conditions.

● Contact position indicator light: Equipped with contact position indicator light, green means OFF and red means ON, making it easy to monitor the status of the equipment.

● Terminal connection method: supports cable or pin busbar terminal connection, flexible installation.

● Installation: Designed to be installed on DIN rail EN 60715 (35mm) using a quick clamp device to ensure simple and safe installation.

● Recommended torque: The recommended torque is 2.5Nm, and the connection is firm and reliable.

● Connection method: Top or bottom connection method is provided, and flexible installation method is provided according to specific requirements.

	Standard	IEC61008-1 , EN61008-1
Electrical features	Rated current In (A)	25, 40, 50, 63, 80, 100, 125
	Type	Electromagnetic
	Type (wave form of the earth leakage sensed)	AC, A, AC-G, A-G, AC-S and A-S are available
	Poles	2 Pole
	Rated voltage Ue(V)	230/240
	Rated sensitivity I△n	30mA,100mA,300mA are available
	Insulation voltage Ui (V)	500
	Rated frequency	50/60Hz
	Rated breaking capacity	6kA
	Rated impulse withstand voltage(1.2/50) Uimp (V)	6000
	Dielectric test voltage at ind. Freq. for 1 min	2.5kV
	Pollution degree	2
Mechanical features	Electrical life	2, 000
	Mechanical life	2, 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 (℃)	-25...+70
Installation	Terminal connection type	Cable/U-type busbar/Pin-type busbar
	Terminal size top/bottom for cable	25mm2 , 18-3/18-2 AWG
	Terminal size top/bottom for Busbar	10/16mm2 ,18-8 /18-5AWG
	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 or bottom

Test different types of RCDs

When testing different types of Residual Current Devices (RCDs), it is important to understand the specific requirements and considerations for each type. For example, the installer can check correct operation when subjecting DC residual currents without additional requirements. This testing is done during the manufacturing process and is called type testing, similar to how we rely on circuit breakers under fault conditions. Types A, B and F RCDs are tested in the same way as AC RCDs. For details on test procedures and maximum disconnect times, see IET Guide Note 3.

AC type RCD discovered during electrical inspection

If an electrical inspector discovers an AC-type RCD during an electrical installation condition report and is concerned that residual DC current may affect its operation, it is critical to notify the customer. The customer should be made aware of the potential hazards that may arise and the amount of residual DC fault current evaluated to determine whether the RCD is suitable for continued use. Depending on the magnitude of the residual DC fault current, an RCD affected by the residual DC fault current may not operate as expected, creating potential hazards similar to those of installing no RCD at all.

RCD operational reliability

Extensive research has been conducted on the operational reliability of RCDs installed in various installations. These studies provide valuable insights into the impact of environmental conditions and external factors on RCD operation. Understanding the operational reliability of RCDs is critical to ensuring their continued effectiveness and safety in a variety of practical applications.