nVent HOFFMAN PWB03 is a 3U 19-inch mild steel power distribution box for circuit breakers, switches and sockets, featuring capacity for up to 22 modular devices, an adjustable DIN rail, twin earthing rails and a brushed rear cable entry.
£217.00
The nVent HOFFMAN PWB03 is a 3U 19-inch power distribution box designed for installing circuit breakers, switches and sockets within electrical and electronic equipment racks. By housing power switching equipment in a dedicated enclosure, the PWB03 helps segregate these components from other equipment installed within the cabinet and reduces the potential for unwanted interference.
The PWB03 provides an opening for up to 22 modules of 18 mm and incorporates a DIN rail that can be adjusted in depth by 15 mm. Two integrated 10 mm x 8 mm earthing rails are provided, each measuring 120 mm long and offering 15 M5 connection points, supporting organised protective earth connections within the distribution assembly.
Manufactured from 1.5 mm mild steel with a light grey RAL 7035 powder-coated finish, the PWB03 mounts directly onto standard 19-inch profiles at the required position. A large rear 400 mm x 35 mm cable entry fitted with a cable brush provides a practical route for incoming and outgoing wiring while helping maintain an organised rack installation.
Separating power switching devices from other equipment within a rack can improve organisation and help avoid unwanted interaction with neighbouring components. The nVent HOFFMAN PWB03 provides a dedicated enclosure for circuit breakers, switches and sockets, allowing the power distribution equipment to be positioned on the 19-inch profiles where it is most appropriate for the installation.
The combination of a depth-adjustable DIN rail, twin earthing rails and a brushed rear cable opening makes the PWB03 particularly practical for professional enclosure builds. Its 3U format provides capacity for up to 22 modular devices while retaining compatibility with standard 19-inch rack infrastructure.
| Manufacturer | nVent HOFFMAN |
|---|---|
| Series | PWB |
| Model | PWB03 |
| Product type | 19-inch power distribution box |
| Rack height | 3U |
| Height | 133.35 mm |
| Width | 482.6 mm |
| Depth | 135–150 mm |
| Material | 1.5 mm mild steel |
| Finish | Powder coated |
| Colour | RAL 7035 light grey |
| Module capacity | Up to 22 x 18 mm modules |
| DIN rail adjustment | 15 mm depth adjustment |
| Earthing rails | 2 |
| Earthing rail size | 10 mm x 8 mm |
| Earthing rail length | 120 mm |
| Earthing connections | 15 x M5 connections per rail |
| Rear cable entry | 400 mm x 35 mm |
| Mounting | 19-inch profiles |
| Pack quantity | 1 piece |
| EAN | 8713574062894 |
The PWB03 is a 3U 19-inch power distribution box designed to house circuit breakers, switches or sockets within racks while segregating power switching equipment from other installed components.
The nVent HOFFMAN PWB03 has an opening designed to accommodate up to 22 modules measuring 18 mm each.
Yes. The PWB03 incorporates a DIN rail that can be adjusted in depth by 15 mm, providing flexibility when positioning compatible electrical devices.
Yes. The PWB03 is equipped with two 10 mm x 8 mm earthing rails, each 120 mm long with 15 M5 connection points.
The PWB03 has a 400 mm x 35 mm rear cable entry fitted with a cable brush, providing a convenient route for wiring into the power distribution box.
nVent HOFFMAN 19-inch mounting accessories provide practical solutions for professional electrical and electronic enclosure installations, with the PWB03 combining dedicated power equipment segregation, modular device capacity, adjustable DIN rail mounting, integrated earthing and organised cable entry in a robust 3U steel enclosure.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...