
BG Electrical 604 Brown 4 Terminal Junction Box With Selective Entry 20A 80mm 3¼ Inches
604
BG Electrical 604 Brown 4-Terminal Junction Box – 20A, Selective Entry Design for Compact Ring Circuit Installations
The BG Electrical 604 is a compact 4-terminal 20A junction box in a brown finish, ideal for discrete and reliable electrical connections. With robust terminals and knockout entries, it supports unbroken ring circuit installations in residential and light commercial applications.
- Compact Form Factor: 80mm (3¼") diameter design is ideal for confined or discreet installation points.
- 4-Terminal Layout: Enables neat and efficient termination of unbroken ring or radial circuits.
- Reliable Cable Fixing: Large grub screws in generous capacity slot terminals ensure strong clamping.
- Selectively Knocked Out Entries: Simplifies cable entry while maintaining a clean enclosure.
- Built to Standards: Manufactured from durable brown urea and conforms to BS EN 60670.
Technical Specification
- Standard(s): BS EN 60670
- Rating: 20 Amp 250V~
- No. of Terminals: 4
- Material: Moulded Brown Urea
- Dimensions: 80mm dia (approx. 3¼")
✅ Choose the BG 604 for a compact, compliant solution where secure ring wiring connections are essential!

Ean Code | 5021166604203 |
Product | Junction Box |
Type | 4 Terminal |
Colour | Brown |
Fixing Centres | 50.8 mm |
Voltage | 250 V |
Width | 80 mm |
Current Rating | 20 A |
Standards | BS EN 60670 |
Height | 31 mm |
Delivery Options:
- PRIORITY DELIVERY – Next Working Day (All items in stock and ordered before 3 pm) - £7.08 inc-VAT. (£5.90 ex-VAT)
- Orders Over £100 (before VAT): We offer free standard shipping on all orders shipped to UK mainland addresses
- Orders under £100 (before VAT): Our standard delivery fee to UK mainland addresses is £5.90 ex-VAT (£7.08 inc-VAT)
*Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £12 ex-VAT for all orders (Prices subject to change).
Items requiring specialist shipping:
- Orders containing Solar Panels, Batteries and/or Inverters: Up to 50 qty will be dispatched on a pallet and incur a £120 ex-VAT delivery charge**.
**Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £180 ex-VAT (Prices subject to change).
Contact us if you have any further questions.