Sollysta 20A Isolator Switch
Hager is first to market with a 20A double pole switch with isolation function independently certified to BS EN 60669-2-4.
Compliant with BS EN 60669-2-4
Sollysta Isolator Switch
Hager’s Sollysta range uniquely offers a 20 Amp switch compliant with BS EN 60669-2-4, meaning it is certified as an isolation device as identified in Table 537.4 of the wiring regulations BS 7671.
The current edition of the wiring regulations, BS 7671, requires that devices used for isolation shall be of the type for which the isolation function is explicitly recognised by the relevant product standard.
Many electricians assume that a 20A double pole (DP) switch is an isolating switch. In fact, the ECA highlighted the unawareness of their members in specifying the correct standard for an isolating switch and agreed that, generally, a 20 A DP switch is selected and used for isolation.
If the switch is selected and used for functional switching only, BS EN 60669-1 is appropriate, as indicated in Table 537.4 of BS 7671. However, if the switch is selected for an isolation function, then the appropriate standard is BS EN 60669-2-4.
"Hager continues to deliver on its commitment to innovate and create product solutions that meet the needs of electricians and their customers."
Safe & Simple
Safety is paramount
Specifically designed to inspire confidence, the modern design combines stylish aesthetics and quality without compromising on functionality, reliability or safety.
Benefits
Flexible Solution
Our Sollysta Isolator Switch gives electricians the choice of switching to the appropriate required function by offering both our current functional 20A Double Pole switches and now our BS EN 60669-2-4 compliant 20A DP Isolation switches.
BEAMA Safety Checklist
Isolating switches for household and similar fixed electrical installations
This checklist outlines simple measures to help you to safeguard against being deceived into buying counterfeit and / or non-compliant products.
FAQ
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Where would I use an Isolator switch?
If the device being installed requires an isolator switch to be fitted, then it is required by the wiring regulations BS 7671 that the switch conforms to the standard BS EN 60669-2-4. The new Sollysta 20A DP Switch with Isolation function has been tested and conforms to this standard, making it a true isolator. Typical applications include but are not limited to immersion heaters, extractor fans, dishwashers, and washing machines.
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Do isolators need to come with the Isolator symbol on them?
True Isolators that conform to BS EN 60669-2-4 need to have the symbols, so any switch without the Isolator symbol does not conform to the standard and may not have undergone the tests and passed the requirements to be a true Isolation device.
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When would I use an Isolator switch?
BS 7671 requires that devices for isolation shall be of a type for which the isolation function is explicitly recognized by the relevant product standard or as identified in Table 537.4 of the Wiring Regulations BS 7671. Household or similar fixed electrical devices would normally require a switch with isolation function.
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How does an Isolator switch work?
An Isolator switch will completely isolate the conductive parts that take power from the switch to the equipment it is connected to when put in the off (open) position. An isolator switch will undergo a rigorous series of tests including, short circuit and test voltage as required to be classified as an isolator.
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How can I identify a switch with an Isolating Function?
Isolating switches conforming to BS EN 60669-2-4 must be marked with the symbols for isolating function and for the closed (on) and open (off) position. These markings must be visible from the front after installation. The isolation function symbol may be included in a wiring diagram or combined with symbols of other functions, provided that it is visible from the front. It is not mandatory but Sollysta have also marked the rear of the switch with the relevant standard BS EN 60669-2-4.
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Why would I use an Isolator switch as opposed to a functional 20A Double Pole switch?
Due to the onerous testing required for BS EN 60669-2-9 the isolation function is used for reasons of safety. Using BS EN 60669-2-4 helps with dielectric strength tests and ensures performance, safety and quality assurance.
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What kind of testing has gone into the 20A Double Pole Isolator switch?
The switches have been independently tested and certified by Eurofins London to BS EN 60669-2-4.
Short-circuit withstanding capability according to § 18.101.1 of EN 60669-2-4:2005. Using the Hager MTN120 6kA B curve MCB in accordance with values in table 102 of EN 60669-2-4 : 2005.
Application of 3000V during 60 seconds.
Switch on and off at rated current and at rated voltage.
An additional tripping test on MCB's MTN120 according to Annex ZA 8.2.3.2 a) of BS EN 61439-3.