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ABB 4P Pole Panel Mount Isolator Switch - 80A Maximum Current, 37kW Power Rating, IP20

ABB 2P Pole Isolator Switch - 16A Maximum Current, IP20, IP40

ABB 4P Pole Isolator Switch - 50A Maximum Current

ABB 1P Pole Isolator Switch - 25A Maximum Current

ABB 4P Pole Isolator Switch - 40A Maximum Current

ABB 2 Pole DIN Rail Changeover Switch - 16A Maximum Current, IP20


Isolator switches, also known as disconnect switches or circuit breakers, are electrical devices used to safely disconnect electrical circuits from their power sources. These switches enable the isolation of circuits or equipment for maintenance, repair, or safety purposes. By providing a physical barrier, isolator switches prevent accidental contact with live electrical components. They are widely used across industrial, commercial, and residential settings in NZ to protect personnel and equipment during maintenance or emergency scenarios.

## **Benefits of Isolator Switches?**

### **Safety**

Isolator switches are vital for enhancing safety by providing a dependable method for cutting off power. This feature significantly reduces the risk of electrical shocks and accidents during equipment maintenance or repair.

### **Maintenance**

These switches enable safe de-energisation of equipment or circuits, allowing maintenance or servicing without the dangers of electrical shock or equipment damage.

### **Emergency Response**

In emergency situations, isolator switches allow for the rapid disconnection of power, helping to prevent further hazards or damage.

### **Energy Management**

Isolator switches contribute to efficient energy management by controlling power supply to designated areas or pieces of equipment, ensuring that energy usage is optimised.

### **Fault Identification**

Equipped with indicators or clear disconnect features, isolator switches make it easy to determine the energisation status of circuits or equipment, aiding in swift fault diagnosis.

### **Compliance**

Meeting safety codes and regulations often requires the use of isolator switches. Their implementation helps fulfil these requirements, ensuring that safety measures are upheld across electrical systems.

### **Enhanced Power Distribution**

Isolator switches play a crucial role in managing power distribution within complex setups. They ensure efficient power flow, especially in systems that require auxiliary power sources for high-demand applications like winches, without compromising the main power system.

## **Single-Phase vs. Three-Phase Isolator Switches**

Isolator switches are available in both single-phase and 3-phase configurations, depending on the specific application and electrical system requirements.

### **Single-Phase Isolator Switches**

These switches are designed for single-phase electrical systems, where power is supplied by a single line and a neutral conductor. They are commonly used in residential and small commercial applications where the electrical load is relatively low.

### **Three-Phase Isolator Switches**

These switches are designed for three-phase electrical systems, where power is supplied by three separate lines and a neutral conductor. 3-phase systems are commonly used in industrial, commercial, and larger residential applications due to their higher power requirements.

## **Applications of Isolator Switches**

Isolator switches are crucial across multiple sectors, ensuring safety and efficiency in managing electrical systems:

**Electrical Distribution Systems:** Used in power grids and substations, isolator switches enable safe maintenance of high-voltage equipment such as [transformers](https://nz.rs-online.com/web/c/automation-control-gear/process-control/current-transformers/) and [circuit breakers](https://nz.rs-online.com/web/c/fuses-circuit-breakers/circuit-breakers/) by providing a physical disconnect and an extra layer of safety.

**Industrial Machinery and Equipment:** These switches are integral in manufacturing settings for safely isolating machinery during repairs, ensuring that maintenance staff are not exposed to live connections.

**Renewable Energy Systems:** In solar and wind installations, there are main isolating switches to manage and protect the energy flow, facilitating safe maintenance and preventing backflow to the grid.

**HVAC Systems:** Essential for the installation and maintenance of [HVAC equipment](https://nz.rs-online.com/web/c/hvac-fans-thermal-management/), isolator switches allow for safe servicing, especially in systems like air conditioners, where they prevent faults during storms and reduce risk during maintenance.

**Manufacturing and Process Industries:** Isolator switches help control and isolate electrical components and heavy machinery, ensuring operational safety and compliance with regulatory standards.

**Data Centres:** Used to manage power distribution and safeguard critical infrastructure against electrical hazards, enhancing system reliability and uptime.

**Domestic Appliances:** For appliances like refrigerators and electric showers, especially those placed in damp or hazardous locations, isolator switches provide an essential safety mechanism for maintenance and emergency isolation.

## **Ensure Safety with Reliable Isolator Switches – Shop Now**

Elevate your safety standards with top-quality isolator switches from RS New Zealand, your reliable supplier and distributor. We stock a diverse range of isolating switches from trusted brands like [ABB](https://nz.rs-online.com/web/b/abb/), [Siemens](https://nz.rs-online.com/web/b/siemens/), and [Schneider Electric](https://nz.rs-online.com/web/b/schneider-electric/), ensuring you have the right switches to maintain safety and efficiency. Choose RS NZ for your isolator switch needs and experience our commitment to quality and reliability.

## **Ordering & Delivery Information for NZ**

Simply select your preferred products from our extensive online catalogue and enjoy swift delivery throughout New Zealand. For more detailed information on delivery times and charges, please refer to our [Delivery Information page](https://nz.rs-online.com/web/content/support/all-articles/delivery). With RS, you can expect a seamless ordering process and reliable delivery, ensuring you have the necessary equipment when you need it most.



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Unveiling the Essentials: A Comprehensive Guide to Isolators

Schneider Electric 3 Pole Isolator Switch - 100A Maximum Current

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