Main Incomers Archives

Mains isolators, also known as mains switch disconnectors or main switches, are electrical devices designed to provide a safe and reliable means of disconnecting the electrical supply to an entire electrical installation or a specific section of it. These devices are an important component of electrical installations and play a critical role in ensuring safety during maintenance, repairs, or emergencies while complying with BS 7671 (the IET Wiring Regulations) and other relevant standards. Here are key features and considerations related to mains isolators:

Purpose: Mains isolators are used to disconnect the electrical supply from the utility grid or power source. They provide a means of isolating the entire electrical installation or specific parts of it for maintenance, repairs, or emergency shutdowns.
Voltage Rating: Mains isolators are designed for specific voltage levels, and their selection should match the voltage of the electrical installation they serve. Common voltage ratings include 230V and 400V for single-phase and three-phase systems, respectively.
Current Rating: The current rating of mains isolators should match the maximum expected current flow in the installation. These devices come in various current ratings, such as 60A, 80A, 100A, and higher, depending on the application.
Isolation Function: Mains isolators provide a means of electrical isolation. They typically have an “on” and “off” position, allowing the electrical supply to be disconnected when in the “off” position.
Lockable Handles: Many mains isolators are equipped with lockable handles or mechanisms to prevent unauthorized access or tampering, enhancing safety and security.
Visible Switch Positions: These devices often feature clear and visible switch positions (such as “on” and “off”) to indicate the status of the electrical supply, making it easy for personnel to identify whether power is connected or disconnected.
Mounting Options: Mains isolators are designed for various mounting options, including wall mounting, surface mounting, or panel mounting, depending on the installation requirements.
Compliance with Standards: Mains isolators should comply with relevant standards and regulations, including BS 7671, to ensure electrical safety and proper performance in electrical installations. Compliance ensures that the devices meet specific requirements related to isolation and protection.
Installation and Location: Mains isolators should be installed by qualified electricians in accordance with the wiring regulations. The installation location should be accessible and comply with any specific requirements outlined in the regulations.
Documentation: Proper documentation of the mains isolator’s location, purpose, and switch positions is essential for maintenance and safety purposes. Clear labeling helps personnel understand the function of the device.

Mains isolators are a critical safety feature in electrical installations, providing a reliable means of disconnecting power for maintenance and emergencies. Proper selection, installation, and maintenance of mains isolators in accordance with BS 7671 and other relevant standards contribute to electrical safety and compliance with regulations

Warmup Repair Kit (New 2019)

Warmup 6iE Smart WiFi Underfloor Heating Thermostat Onyx Black

Warmup 6iE Smart WiFi Underfloor Heating Thermostat White

Pebble Mini Plug&Play Hand Dryer - Black

Hafele Loox LED Door Sensor Switch

Timeguard Fused Spur 7 Day FST77

GEFL - Ceiling Mounted PIR Presence Detector

Leyton Discreet Miniature Recessed Double Door Sensor - Black

Aurora EN-DLM981X EFD™ Pro Fixed Fire Rated Downlight

G4 LED 3W Dimmable 3000K Warm White

Aurora AU-X7/30 7W LED Warm White 3000K Dimmable Downlight White Bezel Included

Aurora / Enlite ICE™ 5W Dimmable GU10 LED Warm White 3000K

DC Jolly MD Driver 122260 Dimmable LED Driver

DC MAXI Jolly DALI 1 & 2 / 1-10V 60W Dimmable LED Driver 127413

Aurora 1-10W Dimmable 700mA Constant Current LED Driver

Hafele LED Driver 12V Constant Voltage 60W

Hager Sollysta 2 Gang Double Pole Switched Socket Dual Earth

Syncbox SB-Power

Hager Sollysta Double Pole Switched Socket 2 Gang With Twin USB A+C Ports

V-Pro Grid - Long Spindle 24mm LED Dimmer 120W

FuseBox 32A RCBO Type A

Meter Supply Isolator with Surge Protection

FuseBox 6A RCBO Type A

Fusebox Din Rail Mounted MCB / RCBO Blank

Aico Ei146e Optical Smoke Alarm

Aico Ei3016 Optical Smoke Alarm

Aico Ei650iRF RadioLINK+ Battery Optical Alarm

Aico Ei3024 Multi-Sensor Fire Alarm

Vent-Axia VASF100HT Dual Speed Silent Humidistat Timer

Vent Axia VASF100T Dual Speed Silent with Timer

Envirovent SILDES100HT Silent Design 100mm White Ultra Quiet Extractor Fan With Timer & Humidistat

AirVent Tile Fan with Timer

NAPIT EICR Codebreakers A2:2022

Requirements for Electrical Installations IET Wiring Regulations Eighteenth Edition BS 7671:2018+A2:2022

On-Site Guide (BS 7671:2018+A2:2022) 8th Edition

Guidance Note 3: Inspection & Testing 9th Edition

Wago Wagobox 221-4 Enclosure 4mm²

Wagobox-Light Wago Junction Box

Wago 221-412 2 Way Lever Connector - Pack of 100

Wago Junction Box

M6 X 20mm Penny Washer BZP

SWA No. 7 Cable Cleat

Deligo M6 x 30mm Penny Washer BZP

SWA No. 6 Cable Cleat

Milwaukee Inkzall™ Marker Black - 1 PC

Ideal Flat Cable Stripper for Twin & Earth

Mandrex One-Click (MXqs) Hole Extension Adapter Set

Mandrex One-Click Starter Kit HEX11 HSS

POD POINT S7-2C-3 Solo 3 Tethered 7kW EV Car Charger

Pod Point Solo 3 Home Untethered Universal 7kW Mode 3 EV Charger

POD POINT SOLO LOCKING MECHANISM

Sync EV - Home Car Charger EVCP-7KW-S-1PH: 32A Black

Sync EV - Home Car Charger EVCP-7KW-S-1PH: 32A White

G4 LED 3W Dimmable 3000K Warm White

Live Electrical 125 Amp 6 Way TPN Distribution Board with SPD

Pebble Mini Plug&Play Hand Dryer - Black

Aurora R6™ Fixed 6W Fire Rated Downlight Warm White 3000K

The Back Box Repair Clip - Pack of 5

Main Incomers

Labels

Ideas & Inspiration