JBX Pro
Designed for use with Wago® 221-4XX connectors.
The JBX Pro builds on the trusted performance of the Connexbox® enclosure range with enhanced features for more complex or space-constrained installations. It’s ideal for electricians who regularly work across both power and lighting circuits, smart home systems, or need extra capacity and flexibility on the job.
With an improved cable clamping system, space for more connectors, and added entry points, the JBX Pro is built for those moments when your project needs extra capacity and flexibility.
Connexbox® JBX Pro. More capacity. More flexibility. Same confidence.
Features & Benefits
Technical Specifications:
Ratings per IEC/EN: | 450V/ 32A |
Conductor sizes: | 0.14mm² to 4.0mm² |
Max individual conductor connections: | 24 when using 8 x 221-403 connectors |
Cable sizes: | 3 - 10 mm diameter |
Dimensions (mm): | 51 (W) x 42(H) x 113(L) |
Standard: | BS EN 5733 (Maintenance Free) |

Multi-Position Gripper Mechanism
Removable grippers can be configured to ensure a firm grip on cables with a diameter of 3mm to 10mm.

Additional cable entry points
Offers increased flexibility for different wiring layouts and on-site installation scenarios.

Four connector receptacles
Expanded connector capacity (up to 8 three-way connectors) simplifies wiring configurations and improves workflow.

Dual-angle mounting bracket
Enables mounting at two angle mounting options, giving greater control over positioning and access in tight or awkward spaces.
Try the Connexbox® JBX Pro - on us!
Want to get your hands on the new Connexbox® JBX Pro? We’re giving away a limited number of free samples so you can put it to the test!
There’s no charge, no catch, and we’ll even cover the postage.
All we ask? Let us know what you think. And if you rate it, spread the word!