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Enclosed Changeover Switches

Sustaining the needs of critical power applications is paramount through changeover switches by selection of an apt source of switching and control. Proper industrial weatherproof protection is provided to these devices via enclosed changeover switches. IPD provides you with enclosed changeover switches for ABB switches and Telergon accessories, leading brands with a well proven track record within this environment.

The enclosed changeover switches are designed to facilitate changeover switches with current ratings from 63A to 630A, with Ingress protection up to IP66 against dust and strong jets of water. You can find them in polyester or mild steel enclosures, with a lightweight design and RAL7035 smooth finish unlike the powder coated mild steel range, which shows high impact strength and is tested to comply with IEC 60947.3.

Browse our range of enclosed changeover switches below. If you would like to find out more information about our products, get in touch with us on 1300 556 601 today.

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      Frequently Asked Questions

      ABB enclosed changeover switches operate under the following utilization categories, 

      • AC-31 for non-inductive or slightly inductive load  
      • AC-33 for motor loads or mixed loads including motors 
      ABB change-over switches are rated according to IEC 60947-6-1 standard. 

      In order to comply with BS8519 which states “Where the availability of the life safety and fire-fighting equipment is conditional to the occupation of the building, a bypass arrangement should be incorporated to enable the changeover device to be maintained without loss of service from the critical plant”, the bypass switches consist of the following;  

      Single or mains bypass: A closed transition manual changeover switch is included to allow for the seamless (no 0-position giving no break in supply when moving to bypass) transition to bypass. The front of the panel should indicate that it has been bypassed and is safe to carry out maintenance.  

      Dual Bypass: A closed transition manual changeover switch is included to allow for the seamless (no 0-position giving no break in supply when moving to bypass) transition to bypass. Together with a standard manual changeover switch to allow you to choose between supply 1 or supply 2. The front of the panel should indicate that it has been bypassed and which supply is feeding the load and is safe to carry out maintenance. 

      The enclosed ABB changeover switches have an ingress protection rating of up to IP66 against dust and strong jets of water, thus very well suited for outdoor installations. Available in polyester or mild steel enclosures, with a lightweight design and RAL7035 smooth finish unlike the powder coated mild steel range, which shows high impact strength. 

      Most portable generators will come in 2 main types, defined by the internal wiring of the generator related to the neutral and ground. The neutral and ground are both tied together, or separated, inside the generator. A bonded-neutral generator is a generator with the neutral and ground tied together. It might also be described as?neutral bonded to frame. A generator with the neutral and ground isolated and separated from each other, is referred to as a?floating-neutral?generator. 

      Certain industrial or commercial generators must be bonded-neutral to pass OSHA inspection on job sites, which is why there are many generators with the bonded-neutral attribute. Certain bonded-neutral generators also might have GFCI (Ground Fault Circuit Interruption) protection built-in, due to other necessities on installation sites related to ground fault protection. It’s essential to identify these generator attributes at the time of selecting a generator and transfer switch, because it’s possible that some on site generators with GFCI protection will require a special type of transfer switch installation. 

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