



Craig & Derricott EDFG03153NL i-Switch Light Grey Sheet Steel TPN Fuse Combination Unit With Safety Handle IP65 315A 415V Height: 800mm - Width: 600mm - Depth: 367mm
EDFG03153NL
Range Options
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EDFG00323NL | 32A, H300 W300 D217mm | £270.25 £225.21 |
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EDFG00633NL | 63A, H300 W300 D217mm | £295.75 £246.46 |
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EDFG01003NL | 100A, H500 W400 D267mm | £423.92 £353.27 |
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EDFG01253NL | 125A, H500 W400 D267mm | £465.97 £388.31 |
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EDFG01603NL | 160A, H500 W400 D267mm | £496.84 £414.03 |
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EDFG02003NL | 200A, H600 W400 D267mm | £734.82 £612.35 |
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EDFG02503NL | 250A, H600 W400 D367mm | £875.40 £729.50 |
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EDFG03153NL | 315A, H800 W600 D367mm | £1,070.52 £892.10 |
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EDFG04003NL | 400A, H800 W600 D367mm | £1,159.54 £966.28 |
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EDFG06303NL | 630A, H1000 W600 D367mm | £2,075.98 £1,729.98 |
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Craig & Derricott i-Switch TPN 315A Fuse Combination Unit – IP65 Industrial Isolator with High Fault Capacity and Secure Safety Handle
The Craig & Derricott EDFG03153NL i-Switch is a robust 315A TPN fuse combination unit, purpose-built for high-load industrial isolation. Housed in a corrosion-resistant IP65-rated steel enclosure, it features advanced safety interlocking, clear contact visibility, and flexible installation options for demanding site conditions.
- Lockable Safety Handle: Prevents access while isolated, padlockable in the ‘Off’ position with space for up to three padlocks.
- Interlock Override Function: Allows authorised access for testing or emergency scenarios by competent personnel.
- Clear Contact Indication: Switch body includes viewing windows for instant visual confirmation of contact status.
- Installer-Friendly Design: Includes top and bottom removable gland plates and galvanised chassis-mounted switch for simplified installation.
- Enhanced Protection Options: Compatible with optional fuse covers for improved safety compliance.
Technical Specification
- Configuration: 3 Pole + Unswitched Neutral
- Current Rating: 315A (Ithe)
- Breaking Capacity: 2520A (AC23A/415V)
- Construction: IP65 Sheet Steel – Grey RAL 7035
- Dimensions: 800mm (H) x 600mm (W) x 367mm (D)
✅ Count on the Craig & Derricott 315A i-Switch for heavy-duty isolation, maximum safety, and long-lasting performance in high-power applications.

Fuse System | BS88 |
Range | Craig & Derricott i-Switch |
Product | Switch Fuses & Disconnectors |
Type | Fuse Switch |
Ingress Protection | IP65 |
Length | 800 mm |
Voltage | 415 V |
Pole Configuration | Four Pole (4P) |
Material | Sheet Steel |
Width | 600 mm |
Depth | 367 mm |
Current Rating | 315A |
Finish | Powder Coated |
Standards | IEC / BS EN 60947-3 |
Number Of Poles | Four Pole (4P) |
Voltage Rating | 415 V |
Rated Current | 315 A |
Breaking Current | 80 kA |
Enclosed | Y |
Terminal Type | Lug |
Height | 800 mm |
Number Of Contacts | 4 |
Switched | Y |
Lockable? | Y |
C/w Fuses | Y |
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.