DN71 Series 20A Glass DP Switch

SPECIFICATIONS

Glass DP Switch vs Standard SP Glass Switch — When Full Isolation Is Required

Three Premium Panel Finishes — A Glass 20A DP Switch That Matches Your Interior

British Standard 20A DP Switch for Glass — The Water Heater Double Pole Glass Disconnect Switch features a panel made of either Aluminum, PC, or Glass materials.

The DN71324 is a 20A double pole switch designed according to British standards specifically as a glass water heater switch and double pole isolator for fixed appliance circuits. This glass double pole switch disconnects both the live and neutral connections; it is a part of safety requirements for water heaters, immersion heaters, air conditioning units, and fixed kitchen appliances. The skin-feeling glass panel provides a perfect tactile experience while using this switch; at the same time, the DP mechanism allows having a full electrical isolation for maintenance. It can be made of one of the three premium materials: PC for mass production, tempered glass for luxury interiors, or brushed aluminum for metallic industrial style. The copper switch mechanism made of red copper with the Φ3.0×25mm contact point made of silver alloy can handle 20A with a good arc control. There are two variants for middle plate made of either steel or plastic-covered steel. IEC certification has been obtained for countries using British standards and a warranty of 12 years has been provided for this model. The product can be supplied on the container level with a minimum order quantity of 20GP.

We are the manufacturer of the glass water heater switch directly from the factory. We are proud to provide competitive wholesaler prices, as well as OEM branding for any material used in the production of your panel. In addition, our company provides a 12-year warranty on the entire DN71 series.

20A DP Isolation — The Correct Glass Specification for Water Heaters and Fixed Appliances

Whenever the UK and Commonwealth wiring regulations require a local point of total disconnection, the glass water heater double pole switch is the appropriate specification. For water heaters and immersion heaters, using a double pole switch is compulsory. This double pole switch ensures full isolation making the appliance safe to maintain and emergency shutdown. The double pole isolator makes sure that the air-conditioning units are switched off both live wires and neutral before servicing. If the appliance is in the kitchen, having physically visible means of disconnection – a double pole switch, thus guarantees to all the services and users that the powered circuit is totally dead. Using red copper for the bus bar and Φ3.0×25 mm silver for the contact point will allow the switch to operate without failure at the current of 20 A.

Matching the DN71 Series — 20A Glass DP Switch in PC, Glass, or Aluminum

This DP switch made from tempered glass and aluminum is a member of the DN71 range, with identical dimensions of 88×86mm and the same luxurious finishes as the DN71 series of 1-4 gang glass switches and door bells. The DN71324 water heater switch may be mounted next to DN71 light switches since both are DP isolators that share the same glass finish and touch with the light switches. The overall dimensions of the device are 88×86mm, thus enabling installation into standard British back boxes. The product can be packed in bulk but with a variety of mixes of materials used. It is available in White, Gold, Gray, and Black to suit any interior design choice.

Factory-Direct Supply for Wholesale & OEM Partners

Buyer’s Guide

Where to Specify a 20A Glass DP Switch: Water Heaters, AC Units & Fixed Appliances

A practical guide to identifying DP isolator applications, panel material selection, and wiring for British standard glass DP installations.

Where Is a 20A Glass DP Switch Required?

According to UK and Commonwealth electrical codes, certain circuits for fixed appliances require the installation of a local 2A DP isolator. It is necessary to isolate water heaters and immersion heaters using a DP isolator so necessary work may be safely carried out with them. One such DP isolator is the DN71324 glass switch. When it comes to air conditioning units, they also need DP isolation so that maintenance may be provided for them, while built-in ovens and electric hob have to have a DP switch located at an accessible location. Therefore, an ordinary single-pole glass switch does not satisfy any of these norms, and a glass DP switch is required.

Panel Material Selection — PC, Tempered Glass, or Aluminum?

PC panel: Budget-friendly and sturdy with skin-feel surface— favorite option for either home usage or business applications. Tempered glass panel: Superior gloss finish with fingerprint resistance— perfect for luxury residential and hotel installations when the switch for heater remains open. Brushed aluminium panel: Metallic industrial design— resistant to scratches and the best choice for contemporary commercial kitchens and modern homes. In addition, all three make use of the same ultra slim dimensions of 88x86mm, 20A DP mechanism, and a warranty of 12 years.

Wiring & Installation

The DN71324 contains four main terminals: incoming live, outgoing live, incoming neutral, and outgoing neutral with an earth continuity terminal. The device is rated at 20A, which means that it is important to use the right size of the supply cable, which is generally 2.5mm² only for short runs. During installations, you need to use a standard 86mm back box for the UK market. Always make sure to isolate the circuit at the consumer unit before working and check if the connections are tightly torqued to support the full 20A current.

Frequently Asked Questions

What is a 20A glass DP switch used for?

A 20A glass DP switch is designed for circuits used in fixed appliances requiring the complete separation of live and neutral wires. Usually, the switch is used in water heaters, immersion heaters, air conditioning systems, built-in ovens, and electric cookers. The DN71324 is a British standard 20A glass double pole switches that provide a visible point of full disconnection in an elegant glass front panel while being compliant with UK and Commonwealth regulations for fixed appliance circuits up to 20A.

What is the difference between a glass DP switch and a glass light switch?

A glass light switch is a single pole switch that only breaks the live conductor but keeps the neutral connected. A glass DP switch, or a double pole switch such as the DN71324 breaks both the live and the neutral at the same time providing total electrical isolation. This is mandatory for immersion heaters, water heaters, and some designated circuits. Although they look the same with 88×86 mm glass panel and skin feeling touch the internal workings are very different in terms of safety.

Can this glass DP switch be used as a water heater isolator?

Indeed, the DN71324 has been created specifically as a glass water heater switch and DP isolator, conforming to regulatory requirements for a local point of complete isolation on circuits of water and immersion heaters. The 20A rating allows the use of standard household water heaters with power of around 4.8kW at 240V. The glass plate product is a sophisticated finish, matching the design of DN71 glass light switches throughout the house.

What panel materials is this 20A glass DP switch available in?

The DN71324 comes with three top-notch finishes: PC (high-quality polycarbonate with a smooth surface that is inexpensive for production), tempered glass (shiny but fingerprint resistant in function, perfect for luxury environments), and brushed aluminum (industrial look, resistant against scratches and best for modern commercial outlets). They have the same luminous 88×86 size, 20A DP mechanism, and 12 years of warranty.