MERSEN Fuse: Class K5, OT Series, Fast-Acting, 400 A, 250 V AC, 250 V DC
The MERSEN OT Series Class K5 Fast-Acting Blade Fuse (MPN OT400) is a 400 A, 250 V AC and 250 V DC non-indicating fuse. This industrial fuse is designed for overcurrent protection in electrical circuits.
SKU 3G-OTH-25156
Also listed as: OT 400 · OT-400
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Delivery
- Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
- Ships to
- Singapore
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Product Description
The MERSEN OT Series Class K5 Fast-Acting Blade Fuse (MPN OT400) is a 400 A, 250 V AC and 250 V DC non-indicating fuse. This industrial fuse is designed for overcurrent protection in electrical circuits.
Frequently Asked Questions
What is the MERSEN OT400 fuse used for?
The MERSEN OT400 is a Class K5 fast-acting blade fuse rated 400 A at 250 V AC and 250 V DC. It provides overcurrent protection in industrial electrical circuits, such as motor control centers, panelboards, and switchgear, where rapid interruption of fault currents is required.
What are the specifications of the MERSEN OT400 fuse?
The MERSEN OT400 is a 400 A, fast-acting, non-indicating blade fuse from the OT Series. It operates at 250 V AC and 250 V DC. The manufacturer part number is OT400. It is a Class K5 fuse designed for reliable overcurrent protection in industrial applications.
Where to buy MERSEN OT400 fuse worldwide?
3G Electric supplies the MERSEN OT400 fuse worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time. We source and deliver genuine MERSEN components to any country.
How to select the correct MERSEN OT400 fuse for an application?
To select the MERSEN OT400, verify your circuit's voltage does not exceed 250 V AC or 250 V DC and that the continuous current rating matches 400 A. Ensure the fuse is fast-acting for applications requiring rapid response to overcurrents. Consult a qualified engineer for coordination with upstream protection devices.
Used in
Common applications for MERSENMERSEN Products
3G Electric supplies MERSEN fast-acting blade fuses. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
