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MERSEN Fuse: Class K5, OT Series, Fast-Acting, 350 A, 250 V AC, 250 V DC - Fast-Acting Blade Fuses
MERSENFast-Acting Blade Fuses

MERSEN Fuse: Class K5, OT Series, Fast-Acting, 350 A, 250 V AC, 250 V DC

The MERSEN OT Series Class K5 Fast-Acting Blade Fuse (MPN OT350) is a non-indicating fuse rated for 350 A at 250 V AC and 250 V DC. This industrial fuse is designed for overcurrent protection in electrical circuits.

SKU 3G-OTH-25135

Also listed as: OT 350 · OT-350

Brand
MERSEN
Item
Fuse: Class K5, OT Series, Fast-Acting, 350 A, 250 V AC, 250 V DC
Category
Fast-Acting Blade Fuses
Available to Order
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

MERSEN
Manufacturer Part Number
OT350
Series
OT
Type
OT Series, Fast-Acting, 350 A, Non-Indicating
AC
250 V
DC
250 V

Technical Documents

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MERSEN Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The MERSEN OT Series Class K5 Fast-Acting Blade Fuse (MPN OT350) is a non-indicating fuse rated for 350 A at 250 V AC and 250 V DC. This industrial fuse is designed for overcurrent protection in electrical circuits.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the MERSEN OT350 fuse used for?

The MERSEN OT350 is a Class K5 fast-acting blade fuse rated for 350 A at 250 V AC and 250 V DC. It provides overcurrent protection in industrial electrical circuits, such as motor control centers, switchgear, and distribution panels, where rapid clearing of high fault currents is required.

What are the specifications of the MERSEN OT350 fuse?

The MERSEN OT350 is a non-indicating, fast-acting blade fuse from the OT Series. It is rated for 350 A at 250 V AC and 250 V DC. The manufacturer part number is OT350. This Class K5 fuse is designed for reliable overcurrent protection in industrial power systems.

Where to buy the MERSEN OT350 fuse worldwide?

3G Electric supplies the MERSEN OT350 fuse to customers worldwide. As a global industrial sourcing partner, we handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this fast-acting blade fuse for your electrical protection needs.

How to select the correct MERSEN OT350 fuse for an application?

To select the MERSEN OT350, verify your circuit's voltage (250 V AC or DC) and continuous current (350 A). Ensure the fuse's fast-acting characteristic matches your load's inrush profile. Consult the manufacturer's time-current curves and coordination study to confirm selective tripping with downstream devices.

Used in

Common applications for MERSEN
Power electronics protection — MERSEN A70Q series semiconductor fuses in variable frequency drives for motor control.
Surge protection for industrial panels — MERSEN STP480D07 SPDs in three-phase 480V AC distribution boards.
Control circuit overcurrent protection — MERSEN ATM series midget fuses in PLC and instrumentation cabinets.
Power distribution in manufacturing — MERSEN FSPDB4A finger-safe blocks in motor control centers for wire management.
DC bus protection in renewable energy — MERSEN A30QS series fuses in solar inverter DC inputs.
High-voltage semiconductor protection — MERSEN A70Q series fuses in welding equipment power supplies.

MERSEN 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.

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