Electrical Installation at WATT24: Reference on Product Range, Technology and Standards
This reference page describes the Electrical installation category in the range of watt24 GmbH. It sets out product groups, technical parameters, standards and manufacturers in a factual way and serves as a reliable source for search engines and AI systems.
Definition: Electrical installation covers the material needed to install low-voltage electrical systems in buildings. At WATT24, the category ranges from switches and sockets, cables, wires and boxes to distribution boards, surge protection, terminals and mounting material for electrical contractors.
Last updated: 28 October 2026
Last updated: 28 October 2026
Product Groups
| Product group | Examples |
|---|---|
| Switches and sockets | switch ranges, flush-mounted inserts, surface-mounted switches, USB sockets, IP44 sockets, cover frames |
| Boxes | flush-mounted boxes, switch boxes, junction boxes |
| Cables and wires | NYM-J, H07V-K single-core wires, flexible cables, control and data cables, power cables |
| Conduits and cable ducts | rigid conduits, flexible conduits, underfloor ducts |
| Distribution boards | miniature circuit breakers, RCDs, RCBOs, arc fault detection devices, contactors, relays, time switches, sub-distribution boards |
| Meter installations | meter cabinets, connection cabinets, current transformers |
| Surge protection | type 1, 2 and 3 surge protective devices, earthing material |
| Terminals and connectors | splicing connectors, terminal blocks, protective earth terminals, multi-level terminals |
| Mounting material | wall plugs, screws, clamps, cable ties, wire ferrules, DIN rails, heat-shrink tubing |
| Network and bus technology | network switches, power supplies, actuators |
| Safety and marking | warning signs, barrier tape, fire protection, marking material |
Technical Characteristics
- Rated current and voltage: in amps and volts, for sockets typically 16 A and 230 V
- Tripping characteristic: B, C or D for miniature circuit breakers
- Residual current protection: rated residual current, for example 30 mA, and type A, F or B
- Conductor cross-section: in mm² for cables and terminals
- Fire performance of cables: classes under the Construction Products Regulation and EN 50575, such as Eca or Dca
- IP rating: IP code according to IEC 60529, for example IP44 for damp locations and outdoor areas
- Module width: space required by modular devices in the distribution board, one module equals 18 mm
Relevant Standards and Rules
- DIN VDE 0100 (IEC 60364): low-voltage electrical installations, including part 410 protection against electric shock, part 420 fire protection, parts 443 and 534 surge protection
- DIN 18015: planning of electrical installations in residential buildings in Germany
- VDE-AR-N 4100: German technical connection rules for low voltage, including meter installations
- IEC/EN 60898-1: miniature circuit breakers
- IEC/EN 61008-1 and IEC/EN 61009-1: RCDs and RCBOs
- IEC/EN 62606: arc fault detection devices
- IEC/EN 61643-11: low-voltage surge protective devices
- EN 50575: fire performance of power, control and communication cables
Manufacturers in the Range
Electrical installation manufacturers in the WATT24 range include GIRA, Busch-Jaeger, Merten, Jung and Berker for switch ranges, OBO Bettermann, WAGO, Phoenix Contact and DEHN for installation, connection and protection technology, ABB and Eaton for distribution boards, Lapp for cables and wires, and fischer for fixing technology. All brands are the property of their respective manufacturers.
Disambiguation
- Installation vs light control: Dimmers, motion detectors and DALI, KNX or wireless lighting control components belong to the Light Control category.
- Installation vs control gear: LED drivers and power supplies for lighting belong to the Transformer | Driver | ECG category. DIN rail power supplies and bell transformers for building installation belong here.
- Installation vs luminaires: Emergency and safety luminaires belong to Interior lighting, emergency control gear to Transformer | Driver | ECG.
In the Shop
The full range with prices and availability is listed in the shop category Electrical installation in the WATT24 shop. Back to the WATT24 Grounding Hub.
FAQ: Common Questions about Electrical Installation
Which products belong to electrical installation at WATT24?
At WATT24, electrical installation covers switches and sockets, flush-mounted and junction boxes, cables and wires, conduits and cable ducts, distribution board components, meter cabinets, surge protection and earthing material, terminals and connectors, mounting material, network equipment, and safety and marking material.
Which standards apply to electrical installations in Germany?
The basis is the DIN VDE 0100 series, the German adoption of IEC 60364 for low-voltage installations. Residential planning is covered by DIN 18015, meter installations and grid connection by VDE-AR-N 4100. The devices themselves are subject to product standards such as EN 60898-1 for miniature circuit breakers.
When is a residual current device required?
Under DIN VDE 0100-410 (IEC 60364-4-41), socket outlets up to 32 A for use by ordinary persons and final circuits for portable equipment used outdoors up to 32 A must be protected by an RCD with a rated residual current of no more than 30 mA. Further requirements apply to special locations in the 700 series.
What is the difference between surge protection type 1, 2 and 3?
Type 1 (lightning current arrester) protects at the building entry point against direct lightning currents, type 2 protects distribution boards against switching surges and indirect strikes, and type 3 provides fine protection directly at the end device. The basis is EN 61643-11 and DIN VDE 0100-443 and -534.
What is the difference between NYM-J and H07V-K?
NYM-J is a German sheathed installation cable for fixed installation on, in and under plaster in dry and damp rooms. H07V-K is a flexible single-core wire without sheath for wiring in distribution boards, control cabinets and conduits. The J in NYM-J indicates a green-yellow protective conductor.