Please enter keywords to search

Global |EN

Choose your country & Language

Asia Pacific

Australia & New Zealand
India
Indonesia
Korea
Malaysia
Philippines
Singapore
Singapore (Sunlight)
Vietnam

Middle East & Africa

CHINT-EGEMAC
Saudi Arabia
South Africa
UAE
CHINT AJLAN
Egypt
Kenya

Europe

France
Kazakhstan
Netherlands
Italy
Spain
Turkey
United Kingdom

North America

Mexico
USA
Canada

Latin America

Brazil
Colombia
Ecuador
Peru

Choose your country & Language

Australia & New Zealand
India
Indonesia
Korea
Malaysia
Philippines
Singapore
Singapore (Sunlight)
Vietnam
CHINT-EGEMAC
Saudi Arabia
South Africa
UAE
CHINT AJLAN
Egypt
Kenya
France
Kazakhstan
Netherlands
Italy
Spain
Turkey
United Kingdom
Mexico
USA
Canada
Brazil
Colombia
Ecuador
Peru

Please enter keywords to search

Your search term contains restricted words. Please use different keywords.

Switch Disconnector: Function, Applications and Advantages

JUN 26, 2022

Intelligent-Manufacturing-of-CHINT-1536x895 20220626
Intelligent-Manufacturing-of-CHINT-1536x895 20220626
Intelligent-Manufacturing-of-CHINT-1536x895-20220626

Table of Contents

  1. What is a switch disconnector?
  2. Why switch disconnectors are used?
  3. Advantages of switch disconnectors
  4. Chint Switch Disconnectors
  5. Conclusion

Chint provides you with a variety of high-quality electrical products to purchase. However, when it comes to switch disconnectors, there is much more to consider before you can safely make an order of the product. This includes the functionality, application areas, and some of the product’s benefits when installed.

Therefore, it’s essential to begin by looking at the meaning of a switch disconnector, and how this device works in the electrical circuits. The disconnectors are used in electrical circuits. These devices are used to cut off electrical circuits for safety purposes. Therefore, if you want to know more about switch disconnectors as one of the commonly used disconnectors in different electrical circuits, then this article is for you.

What is a switch disconnector?

A switch connector is an electrical device with the same functionality as a disconnector. As stated earlier, a disconnector is always designed to disconnect electrical current flow for safety reasons. For instance, when electrical equipment is undergoing repair and maintenance, the electrical flow in the equipment must be disconnected for safety.

For this reason, the main objective of a switch disconnector is to stop the electric flow to all the connected devices in an electrical circuit. As you know, electricity is fatal when handled without precautions; cutting off the flow of the power enables you to manage any electrical device safely during repair and maintenances purposes.

The switch disconnectors will isolate the power to the equipment by cutting off the electrical flow from the primary input or at the main output. The switch disconnectors are also of many types; some are operated manually while others are automatic. For this reason, there exist manual disconnectors and automatic disconnectors.

However, the use of these two switch disconnectors varies based on the disconnector. What you need to note is that the switch disconnectors serve both as a disconnector and also as a load switch. They are always designed to combine the qualities of being an electrical isolator and a load switch.

This makes the switch disconnectors widely used in electrical circuit networks today. It is perfect and reliable in isolating electrical devices from power and has many more benefits, including breaking and energizing the electrical circuits. Many types of switch disconnectors found in the market are frequently used in electrical circuits today.

They include fuse switch disconnectors, normal disconnectors, and famous circuit breakers. However, these switch disconnectors are uniquely designed to operate for different purposes, but all have similar objectives. For this reason, you will always find all these types of disconnectors used together in different electrical circuits.

NH2-Switch-Disconnector 20220626
NH2-Switch-Disconnector 20220626
NH2-Switch-Disconnector-20220626

Why switch disconnectors are used?

As you know, a switch disconnector, also called a disconnector switch or an isolator switch is mainly used to isolate power from electrical equipment connected to a circuit for safety reasons during maintenance activities. These disconnectors also break the electrical circuits in a large electrical distribution.

For this reason, they are widely used in many industrial applications, both manual and motor-operated disconnectors. During their operation, these disconnectors are always paired with switches linked with the earthing wires to provide the safety required for the electrical engineering experts to fix electrical issues during repair and maintenance activities safely.

In addition, the disconnectors with high voltage ratings are always used in larger electrical substations. Their main purpose in the substations is to disconnect extensive powers in transmission lines and transformers for safety maintenance.

The disconnectors, especially from Chint, are always safe and efficient in isolating the large power, making them the most frequently used disconnectors in larger electrical distribution circuits and substations. However, the electrical disconnectors do not have the mechanism to control circuits; they are only safe in isolating the power flow.

Advantages of switch disconnectors

Some of the main benefits of these devices are providing a remote indication, especially in the disconnector position, electrical interlocking, and power transfer switching. As stated earlier, the main objective of an electrical switch disconnector is to isolate power flow.

However, how do they achieve this? Since these disconnectors can either be automatic or manually operated, you will need to choose the best operating method before using the device in your circuit, especially for larger power supply circuits such as in power substations.

These disconnectors are commonly connected to the earthing switches as they are associated with their functionality. For this reason, the interlocking switches are permanently mounted in a frame. A separate mechanism is also applied to the system connection to eliminate the need for an extra post insulator when connecting the earth switches.

In most cases, the earth switches are designed to disconnect dead circuits. For this reason, most switches always lack a fault-making mechanism. However, specific designs of the earth switches come with the fault-making tool that you may consider if you need such kind.

NH4-Switch-Disconnector 20220626
NH4-Switch-Disconnector 20220626
NH4-Switch-Disconnector-20220626

Chint Switch Disconnectors

The Chint store offers you different varieties of switch connectors. These connectors include:

• NH2 Switch disconnector

This is a high-quality product that complies with the design requirement of power isolating functions. This disconnector is perfectly designed to match the DZ series of the RCBO/MCBs in an electrical circuit. In addition, it has certificates and approvals with detailed information on how to use it.

• NH4 Switch Disconnector

This is another powerful switch disconnector available from the chint store that has safe power isolation in an electrical circuit. This device also complies with the isolation function requirements. It is designed to match the MCB/RCBOs that are in the NB series. This device also comes with approvals and certificates that contain information you need to know concerning the product.

• NXHB-125 Switch Disconnector

When looking for the most reliable isolation switch, the NXHB-125 isolation switch from Chint will be the best option for you. It is efficient and perfect for power disconnection and will offer you a safe environment for maintenance purposes in a circuit. It has a wide range of current ratings from 20-125A with an isolation voltage rated at 500V.

Conclusion

A switch disconnector is one of the most frequently used electrical devices in different circuits today. It is mainly used as a disconnector to isolate the flow of electrical current into equipment. The power cut-off is always necessary to provide a safe working environment.

This is essential during repairing and maintaining the electrical circuits and equipment. The disconnectors also make it easier for professionals to repair and maintain circuits in larger power distributions such as in power stations. Therefore, you can make an order for your switch disconnector from the Chint store today and experience their quality services during your electrical maintenance activities.

The Latest
DECEMBER 17, 2025 Understanding Power Losses: How Modern Switchgear Mitigates Inefficiency

Learn how power quality devices, LV switchgear, and shunt reactor solutions cut energy waste and improve electrical performance.

DECEMBER 15, 2025 Power Components for Solar and Storage Equipment

Discover the functions of the different specialized DC components and how these work together to protect, isolate, and measure solar and storage systems.

DECEMBER 12, 2025 Designing Turnkey Substations: From Specification to Commissioning

Learn how EPC teams use MV switchgear, HV switchgear, AIS, and HV MCCB to design efficient turnkey substations from spec to commissioning.

DECEMBER 10, 2025 Preventing Electrical Fires in Multi-Unit Buildings

Learn practical ways to improve electrical fire safety in multi-unit buildings with modern electrical safety devices and layered protection.

DECEMBER 8, 2025 Integrating Renewable Energy into Existing Grid Networks

Integrate renewables smoothly with modern power transformer solutions that stabilize voltage, support bidirectional flow, and strengthen grid reliability for clean energy growth.

DECEMBER 5, 2025 5 Ways to Cut Energy Costs in High-Load Industrial Environments

Energy efficiency is important in high-load industrial environments. Learn why knowing your power factor and reactive power compensation is important.

DECEMBER 5, 2025 Integrating VFDs to Optimize Motor Control in Heavy Industry

VFDs optimize your motor control, especially if you’re in a heavy industry setting. Learn how a variable frequency drive improves your process automation.

DECEMBER 5, 2025 Safe and Reliable Power Components for Smart HVAC Systems

Reliable electrical protection keeps HVAC systems safe, efficient and working smoothly. Explore how contactors, overload relays, and VFDs optimize performance.

DECEMBER 5, 2025 Choosing UL and IEC Components for Dual Market Equipment

Dual standards and dual certification are important in MCCBs. Learn how to choose UL and IEC components for dual market equipment to ensure safety.

DECEMBER 5, 2025 A Complete Guide to Selecting MCBs and RCCBs for Modern Buildings

Discover how to choose the right devices in the MCB vs RCCB lineup for safer, more reliable systems. Learn practical steps to strengthen electrical protection in modern buildings.