Metallic Class T fuse for campervan, off-grid, and marine electrical systems, 200-400A rating

Blue Sea Class T Fuse A3T (200-400Amp)

£36.18

Tax included.

Product info

The Blue Sea Systems Class T Fuse A3T (200–400 Amp) provides fast-acting, high-current protection for inverters, lithium battery banks, and high-amperage DC systems. Designed for van conversions, motorhomes, boats, and off-grid solar installations, this Class T fuse delivers reliable short-circuit protection with high interrupt capacity for maximum safety.

Ideal as a main battery fuse in 12V, 24V, and 48V systems, it safeguards your electrical setup from catastrophic faults while supporting high-power inverter installations.

Key Features:

Available in 200A, 225A, 250A, 300A, 350A & 400A
Fast-acting Class T fuse for DC systems
High interrupt rating for lithium battery protection
Suitable for campervans, marine & off-grid solar systems

Protect your power system with trusted Blue Sea Systems performance.

Hurry up, only 9 items left in stock.

Amp: 200 (5116-BSS)

200 (5116-BSS) 225 (5117-BSS) 250 (5118-BSS) 300 (5119-BSS) 350 (5120-BSS) 400 (5121-BSS)

Changed your mind? Return your order within 30 days.

When you’re running serious power in your van, RV, boat, or off-grid system, protection isn’t optional — it’s essential. The Blue Sea Systems Class T Fuse A3T (200–400 Amp) delivers fast-acting, high-interrupt protection designed specifically for large battery banks and high-amperage DC systems.

Built to safeguard inverters, lithium battery systems, and high-output charging setups, this Class T fuse reacts instantly to short circuits and fault conditions, preventing catastrophic damage to your electrical system. Its compact footprint makes it ideal for tight installation spaces, while its robust construction ensures reliable performance in demanding mobile and marine environments.

Whether you're building a fully off-grid van conversion or upgrading your marine electrical system, this fuse provides the heavy-duty protection your power system deserves.

Key Features:

Available in 200A to 400A ratings
Fast-acting Class T protection for high-current DC systems
High interrupt capacity for superior fault protection
Ideal for inverters, lithium battery banks, and main battery protection
Compact design for space-conscious installations
Marine-grade quality from Blue Sea Systems

Perfect For:

Campervans & motorhomes
Marine electrical systems
Off-grid solar setups
High-capacity lithium battery installations

Protect your investment and power your adventures with confidence — trust Blue Sea Systems for uncompromising electrical safety.

Delivery & Returns

🚚 Fast Dispatch: Order by 2pm and we’ll aim to ship your order the same day, Monday to Friday.

🇬🇧 UK Delivery: DPD, Parcelforce, or Royal Mail

📦 30-Day Returns: Unused items in original packaging

💬 Need Help? info@nomadicleisure.co.uk

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