What is an isolator switch?
In electrical engineering, a disconnector, disconnect switch or isolator switch is used to ensure that an electrical circuit is completely de-energized for service or maintenance. The disconnector is usually not intended for normal control of the circuit, but only for safety isolation.
Where are isolator switches used?
Isolator switches are used for opening an electrical circuit in the no-load condition. It is not proposed to be opened while current flows through the line. Generally, these are employed on circuit breaker both the ends thus the circuit breaker repair can be done easily without any risk.
What is a rotary isolator switch?
A rotary isolator is designed to switch power on and off in commercial or light industrial applications, with a brightly coloured design for quick identification.
What is a 3 pole isolator?
The MK Three Pole Fan Isolator provides a safe and simple method of isolating mechanical fan units and is particularly useful in bathrooms, toilets, storerooms and basements where there is little or no natural light.
What is 3 pole isolator switch?
3 phase isolator switches are a type of fused switch disconnector mechanism. As the name suggests, these switch devices help to ensure that electrical systems and circuits are completely and safely powered down. They do so by isolating (i.e. cutting off the power supply to) a particular part of the circuit in question.
Is isolator a reciprocal device?
ANV002 ISOLATOR An Isolator is defined as non-reciprocal, passive two ports, ferromagnetic device in which power is transmitted in one direction and absorbed in the other direction. Isolators are non-reciprocal devices, meaning their behavior in one direction is very different from that in the other direction.
What is pantograph isolator?
Pantograph Isolators are designed for independent single pole operation or three pole mechanical ganged operation. The relevant standards for Disconnectors are IEC: 62271-102 and 62271-1 (Supersedes IEC: 60694) and IS: 9921 and for insulators IEC: 60273 and 60168 and IS: 2544.
What is the BS number for a rotary isolator?
Conforms to BS-EN 60947-3.
What does 2 pole isolator mean?
A double pole isolator or 2 pole isolator switch is installed to allow a specific appliance or circuit to be powered down so that testing, maintenance and servicing can be carried out safely. They are normally used for high power fixed wiring appliances such as cookers, electric showers and fire alarm boxes.