Electrical and Installation Guides Page 6: 257 technical guides for choosing Electrical and Installation products: selection criteria, standards, common mistakes and frequently asked questions.
What Is a Nickel-Plated Brass Gland? Types and Selection Criteria — A nickel-plated brass gland is a metal cable gland that holds the cable where it enters a panel, box or machine housing and seals the entry against dust and water. What Are HDMI, Audio and Speaker Sockets? Types and Selection Criteria — HDMI, audio and speaker sockets are low-voltage mechanisms that terminate TV, projector and sound system cables in the wall, matching the switch and socket range. What Is a Surface-Mounted Opaque Junction Box? Types and Selection — A surface-mounted opaque junction box is a plastic connection box mounted on a wall or ceiling surface with a solid cover, protecting splices in exposed wiring. What Is a CEE Angled Panel Socket? Types and Selection Criteria — A CEE angled panel socket is an IEC 60309 female socket flange-mounted on a panel door or machine housing, with an opening angled downwards that guides the plug cable down. What Is a Ring-Type Insulated Cable Terminal? Types and Selection Criteria — A ring-type insulated cable terminal has a closed ring-shaped connection end and a colour-coded insulated crimp barrel; it cannot come off the terminal unless the screw is fully removed. What Is a Wet Location Socket? Types and Selection Criteria — A wet location socket is an earthed wall socket with a covered, sealed housing that protects it against dust and splashing water, used in bathrooms, on balconies and in garages and basements. What Is a Euro-Metric Sealed Gland? Sizes and Selection Criteria — A euro-metric sealed cable gland is a metric-threaded (M x 1.5) plastic entry that takes a cable into a panel, box or device housing and seals and holds it. What Is a Standard or Eco Type Cable Lug? Differences and Selection — A standard or eco type cable lug is a tubular lug crimped onto a copper conductor that connects the cable to the bolt on a breaker, busbar or motor terminal. What Is a Standard DIN Rail Terminal Block? Types and Selection Criteria — A standard DIN rail terminal block is a single-level feed-through block that snaps onto a DIN rail and joins the conductor on one side to the one on the other. What Is a USB Charging Socket? Types and Selection Criteria — A USB charging socket is a wall socket with USB-A or USB-C outputs that connects to the 230 V mains and charges phones, tablets and laptops without an adapter. What Is an Empty Combination Box? Types and Selection Criteria — An empty combination box is the empty enclosure of a socket distribution box, supplied so you can fit sockets, circuit breakers and a residual current device to suit your project. What Is a Wall-Mount Metal Enclosure? Types and Selection Criteria — A wall-mount metal enclosure is a painted sheet steel housing hung on a wall or machine frame that holds switchgear and control devices. What Is a Wet Location Switch? Types and Selection Criteria — A wet location switch is a wall switch with an IP54 housing protected against dust and splashing water, used to control lighting and bell circuits on balconies, in garages and in basements. What Is a Twin Entry Ferrule? Colour Codes and Selection Criteria — A twin entry ferrule is a twin wire end ferrule with a plastic collar that is crimped onto two stranded conductors of the same size so they can be connected to a single terminal point. What Is a Screw Connection Terminal Block? Types and Selection Criteria — A screw connection terminal block mounts on a DIN rail and connects the conductor with a screw-tightened clamp; in panels it serves as the connection point for control and power cables. What Is a Connector Insert? Types and Selection Criteria — A connector insert is the insulating part of a multi-contact industrial connector that carries the contacts and fits into the housing; male on the plug side, female on the socket side. What Are Spiral Conduit Distributors and Clips? Types and Selection Criteria — A spiral conduit distributor is a T- or Y-shaped fitting that splits a branch off the main spiral conduit to route cables to points such as sensors, valves or motors. What Is Fiberglass Sleeving? Types and Selection Criteria — Fiberglass sleeving is a flexible sleeve braided from glass fibre and usually coated with an insulating layer; it does not shrink and protects cables and conductors in hot areas. What Is a Rubber Power Strip? Types and Selection Criteria — A rubber power strip is a portable socket unit that combines two, three or four outlets in an impact-resistant flexible rubber body and connects to the end of an extension cable. What Are Metal Trunking Hangers and Brackets? Types and Selection Criteria — Metal trunking hangers and brackets are galvanised steel supports that fix cable trunking to the ceiling, wall or floor and carry its weight to the structure. What Is a Welded Type Cable Lug? Types and Selection Criteria — A welded type cable lug is a copper crimp ring lug whose barrel seam is closed by brazing; the copper conductor is crimped in and connected to a screw or stud. What Is a Switch and Socket Box? Types and Selection Criteria — A switch and socket box is the mounting box, set into the wall or fitted on its surface, into which a switch or socket mechanism is screwed and in which the cables are housed. What Is a Power Strip with Cable? Types and Selection Criteria — A power strip with cable is an extension multiple socket with several earthed outlets, supplied ready to use with its cable and plug fitted. What Is a Single-Phase Rubber Plug? Types and Selection Criteria — A single-phase rubber plug is a 16 A single-phase plug with an impact-resistant flexible rubber body, fitted to the end of a power tool, work lamp or extension cable.