JCH2-125 Main Switch Isolator 100A 125A: Detailed Overview

The JCH2-125 Main Switch Isolator is a versatile and reliable switch disconnector that meets the isolation needs of both residential and light commercial applications. With its high-rated current capacity and compliance with international standards, it provides safe and efficient disconnection for electrical circuits, making it a dependable choice for local isolation tasks.

Overview of the JCH2-125 Main Switch Isolator

TheJCH2 125 Main Switch Isolator 100A 125A  is designed to offer effective disconnection for both live and neutral wires. Its ability to function as a switch disconnector makes it ideal for installation in residential homes, office buildings, and light commercial spaces. This isolator ensures that the circuit can be safely severed, protecting users and equipment from potential electrical hazards.

One of the key features of the JCH2-125 isolator is its broad current rating, accommodating various operational needs. The device can handle rated currents of up to 125A, with options available for 40A, 63A, 80A, and 100A. This flexibility allows the isolator to cater to a wide range of applications.

Key Features and Functions

The JCH2-125 Main Switch Isolator is designed to meet the requirements of modern electrical systems with enhanced safety and operational reliability. Its standout features include:

• Rated Current Flexibility: The isolator comes in five different current ratings: 40A, 63A, 80A, 100A, and 125A, making it adaptable to various electrical loads.
• Pole Configurations: The device is available in 1 Pole, 2 Pole, 3 Pole, and 4 Pole variants, allowing for compatibility with different circuit designs and needs.
• Positive Contact Indicator: A built-in contact position indicator provides clear identification of the switch’s operational status. The indicator shows a green signal for the ‘OFF’ position and a red signal for the ‘ON’ position, ensuring accurate visual confirmation for users.
• High-Voltage Endurance: The JCH2-125 Isolator is rated for a voltage of 230V/400V to 240V/415V, providing insulation up to 690V. This makes it capable of withstanding electrical surges and maintaining stable performance under high loads.
• Compliance with Standards: The JCH2-125 complies with IEC 60947-3 and EN 60947-3 standards, which cover low-voltage switchgear and control gear, ensuring that the device adheres to globally recognized safety and performance guidelines.

Technical Specifications

The technical specifications of the JCH2-125 Main Switch Isolator provide crucial details about its performance, durability, and suitability for various applications. Here’s an in-depth explanation of each specification:

1. Rated Impulse Withstand Voltage (Uimp): 4000V

This specification refers to the maximum voltage the isolator can withstand for a short duration (typically 1.2/50 microseconds) without breaking down. The 4000V rating indicates the isolator’s ability to endure high voltage transients, such as those caused by lightning strikes or switching surges, without damage. This ensures the isolator can protect the circuit during transient voltage spikes.

2. Rated Short Circuit Withstand Current (lcw): 12le for 0.1 Seconds

This rating indicates the maximum current the isolator can handle during a short circuit for a short period (0.1 seconds) without sustaining damage. The “12le” value means the device can withstand 12 times the rated current for this brief duration. This capability is crucial for ensuring the isolator can protect against high fault currents that might occur during a short circuit.

3. Rated Short Circuit Making Capacity: 20le, t=0.1s

This is the maximum short circuit current that the isolator can safely interrupt or “make” for a short time (0.1 seconds). The “20le” value signifies that the isolator can handle 20 times its rated current during this brief interval. This high capacity ensures that the device can manage sudden and severe fault conditions.

4. Rated Making and Breaking Capacity: 3le, 1.05Ue, COSØ=0.65

This specification details the isolator’s ability to make (close) or break (open) circuits under normal operating conditions. The “3le” represents the capacity to handle 3 times the rated current, while “1.05Ue” indicates it can operate up to 105% of the rated voltage. The “COS?=0.65″ parameter denotes the power factor at which the device operates effectively. These ratings ensure the isolator can handle regular switching operations without degradation in performance.

5. Insulation Voltage (Ui): 690V

This is the maximum voltage the isolator’s insulation can handle before breakdown occurs. The 690V rating ensures that the isolator provides adequate insulation to protect against electrical shock and short circuits in circuits operating at or below this voltage.

6. Protection Degree (IP Rating): IP20

The IP20 rating signifies the level of protection the isolator offers against solid objects and moisture. An IP20 rating means it is protected against solid objects larger than 12mm but not against water. It’s suitable for indoor use where the risk of exposure to water or dust is minimal.

7. Current Limiting Class 3

This class indicates the isolator’s ability to limit the duration and magnitude of short-circuit currents, providing protection for the downstream equipment. Class 3 devices offer a higher degree of current limiting than lower classes, ensuring better protection against electrical faults.

8. Mechanical Life: 8500 Times

This represents the number of mechanical operations (opening and closing) the isolator can perform before it may require replacement. With a mechanical life of 8,500 operations, the isolator is designed for long-term use and reliability.

9. Electrical Life: 1500 Times

This indicates the number of electrical operations (under load conditions) the isolator can perform before showing signs of wear or requiring maintenance. An electrical life of 1,500 operations ensures the isolator remains functional under regular use over an extended period.

10. Ambient Temperature Range: -5℃~+40℃

This temperature range specifies the operating environment in which the isolator can function effectively. The device is designed to operate within this temperature range without performance issues, making it suitable for most indoor environments.

11. Contact Position Indicator: Green = OFF, Red = ON

The contact position indicator provides a visual signal of the switch’s status. Green indicates the isolator is in the ‘OFF’ position, while red shows it is in the ‘ON’ position. This feature helps users quickly verify the state of the switch and ensures correct operation.

12. Terminal Connection Type: Cable/Pin-type Busbar

This indicates the types of connections that can be used with the isolator. It is compatible with cable connections as well as pin-type busbars, providing flexibility in how the isolator can be integrated into different electrical systems.

13. Mounting: On DIN Rail EN 60715 (35mm) by Means of Fast Clip Device

The isolator is designed to be mounted on a standard 35mm DIN rail, which is commonly used in electrical panels. The fast clip device allows for easy and secure installation on the DIN rail, simplifying the setup process.

14. Recommended Torque: 2.5N.m

This is the recommended torque for securing terminal connections to ensure proper electrical contact and avoid loosening over time. Proper torque application helps maintain the integrity and safety of the electrical connections.

These technical specifications collectively ensure that the JCH2-125 Main Switch Isolator is a robust, reliable, and versatile device suitable for various residential and light commercial applications. Its design meets stringent safety standards and provides the necessary features to handle typical electrical demands effectively.

Versatility and Installation

The JCH2-125 Isolator is engineered for ease of use and installation, incorporating features that make it suitable for a wide range of applications:

• Mounting Method: It is designed for easy mounting on standard 35mm DIN rails, making installation straightforward for electricians and maintenance personnel.
• Busbar Compatibility: The isolator is compatible with both pin-type and fork-type busbars, ensuring integration with different types of electrical distribution systems.
• Locking Mechanism: A built-in plastic lock allows the device to be locked in either the ‘ON’ or ‘OFF’ position, providing an added layer of security for maintenance procedures.

Safety and Compliance

Safety is at the forefront of the JCH2-125 Main Switch Isolator design. Its adherence to IEC 60947-3 and EN 60947-3 standards ensures that the isolator meets international requirements for low-voltage switchgear. The isolator’s design also incorporates a contact gap of 4mm, ensuring safe disconnection during operations, which is further verified by the green/red contact position indicator.

This isolator does not include overload protection but serves as a main switch that can disconnect the entire circuit. In cases of sub-circuit failure, the device acts as a protective measure, preventing further damage and maintaining system integrity.

Applications

The JCH2-125 Main Switch Isolator is suitable for a variety of uses:

1. Residential Applications: The isolator provides a safe means of disconnecting electrical circuits within homes, protecting residents from electrical hazards during maintenance or emergencies.
2. Light Commercial Applications: In offices, small factories, and commercial buildings, the isolator ensures that circuits can be quickly disconnected to prevent equipment damage and ensure worker safety.
3. Local Isolation Needs: The isolator is ideal for use in systems where local isolation is required, such as in distribution boards or near essential electrical appliances.

Conclusion

The JCH2-125 Main Switch Isolator stands out for its robust design, versatility, and compliance with international safety standards. Its rated current options and compatibility with multiple pole configurations make it a versatile choice for residential and light commercial applications. Additionally, the positive contact indicator and DIN rail mounting ensure ease of use and secure installation. Whether used as a main switch or an isolator for local circuits, the JCH2-125 provides reliable performance, safeguarding electrical systems and ensuring peace of mind for users.

If you are looking for a durable, high-performing, and safety-compliant isolator for your electrical systems, the JCH2-125 Main Switch Isolator is a top-tier option that delivers efficiency and protection in one compact design.