We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

MERSEN Fuse: Class K5, OT Series, Fast-Acting, 90 A, 250 V AC, 250 V DC - Fast-Acting Blade Fuses
MERSENFast-Acting Blade Fuses

MERSEN Fuse: Class K5, OT Series, Fast-Acting, 90 A, 250 V AC, 250 V DC

The MERSEN OT Series Class K5 Fast-Acting Blade Fuse (MPN OT90) is rated for 90 A at 250 V AC and 250 V DC. This non-indicating fuse is designed for overcurrent protection in industrial electrical circuits.

SKU 3G-OTH-25272

Brand
MERSEN
Item
Fuse: Class K5, OT Series, Fast-Acting, 90 A, 250 V AC, 250 V DC
Category
Fast-Acting Blade Fuses
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

MERSEN
Manufacturer Part Number
OT90
Series
OT
Type
OT Series, Fast-Acting, 90 A, Non-Indicating
AC
250 V
DC
250 V
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The MERSEN OT Series Class K5 Fast-Acting Blade Fuse (MPN OT90) is rated for 90 A at 250 V AC and 250 V DC. This non-indicating fuse is designed for overcurrent protection in industrial 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 OT90 fuse used for?

The MERSEN OT90 is a Class K5 fast-acting blade fuse used for overcurrent protection in industrial electrical circuits. It is rated 90 A at 250 V AC and 250 V DC, making it suitable for protecting motors, transformers, and other equipment in manufacturing and power distribution systems.

What are the specifications of the MERSEN OT90 fuse?

The MERSEN OT90 is a Class K5 fast-acting blade fuse from the OT Series. It is rated for 90 A at 250 V AC and 250 V DC, and is non-indicating. The manufacturer part number is OT90, and it is designed for overcurrent protection in industrial applications.

Where to buy MERSEN OT90 fuses worldwide?

3G Electric supplies MERSEN OT90 fuses worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us to source the OT90 fuse for your industrial overcurrent protection needs.

How to select the right MERSEN fuse for my application?

To select the right MERSEN fuse, match the voltage and current ratings to your circuit requirements. The OT90 is a fast-acting Class K5 fuse rated 90 A at 250 V AC/DC. For overcurrent protection, ensure the fuse's interrupting rating exceeds the available fault current. Consult a qualified engineer for specific applications.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Similar products

Matched by specification & description
MERSEN Fuse: Class K5, OT Series, Fast-Acting, 80 A, 250 V AC, 250 V DC, Non-Indicating (MPN OT80). Key specifications — Series: OT; Brand: MERSEN; Manufacturer Part Number: OT80.
MERSEN
MERSEN Fuse: Class K5, OT Series, Fast-Acting, 80 A, 250 V AC, 250 V DC, Non-Indicating (MPN OT80). Key specifications — Series: OT; Brand: MERSEN; Manufacturer Part Number: OT80.
MERSEN Fuse: Class K5, OTS Series, Fast-Acting, 90 A, 600 V AC, 300 V DC, Non-Indicating (MPN OTS90). Key specifications — Series: OTS; Brand: MERSEN; Manufacturer Part Number: OTS90.
MERSEN
MERSEN Fuse: Class K5, OTS Series, Fast-Acting, 90 A, 600 V AC, 300 V DC, Non-Indicating (MPN OTS90). Key specifications — Series: OTS; Brand: MERSEN; Manufacturer Part Number: OTS90.
MERSEN Fuse: Class K5, OT Series, Fast-Acting, 400 A, 250 V AC, 250 V DC, Non-Indicating (MPN OT400). Key specifications — Series: OT; Brand: MERSEN; Manufacturer Part Number: OT400.
MERSEN
MERSEN Fuse: Class K5, OT Series, Fast-Acting, 400 A, 250 V AC, 250 V DC, Non-Indicating (MPN OT400). Key specifications — Series: OT; Brand: MERSEN; Manufacturer Part Number: OT400.
MERSEN Fuse: Class K5, OT Series, Fast-Acting, 100 A, 250 V AC, 250 V DC, Non-Indicating (MPN OT100). Key specifications — Series: OT; Brand: MERSEN; Manufacturer Part Number: OT100.
MERSEN
MERSEN Fuse: Class K5, OT Series, Fast-Acting, 100 A, 250 V AC, 250 V DC, Non-Indicating (MPN OT100). Key specifications — Series: OT; Brand: MERSEN; Manufacturer Part Number: OT100.
MERSEN Fuse: Class K5, OT Series, Fast-Acting, 200 A, 250 V AC, 250 V DC, Non-Indicating (MPN OT200). Key specifications — Series: OT; Brand: MERSEN; Manufacturer Part Number: OT200.
MERSEN
MERSEN Fuse: Class K5, OT Series, Fast-Acting, 200 A, 250 V AC, 250 V DC, Non-Indicating (MPN OT200). Key specifications — Series: OT; Brand: MERSEN; Manufacturer Part Number: OT200.
MERSEN Fuse: Class K5, OT Series, Fast-Acting, 150 A, 250 V AC, 250 V DC, Non-Indicating (MPN OT150). Key specifications — Series: OT; Brand: MERSEN; Manufacturer Part Number: OT150.
MERSEN
MERSEN Fuse: Class K5, OT Series, Fast-Acting, 150 A, 250 V AC, 250 V DC, Non-Indicating (MPN OT150). Key specifications — Series: OT; Brand: MERSEN; Manufacturer Part Number: OT150.

More from MERSEN

View all MERSEN parts
MERSEN Fuse: Class K5, OTS Series, Fast-Acting, 110 A, 600 V AC, 300 V DC, Non-Indicating (MPN OTS110). Key specifications — Series: OTS; Brand: MERSEN; Manufacturer Part Number: OTS110.
MERSEN
MERSEN Fuse: Class K5, OTS Series, Fast-Acting, 110 A, 600 V AC, 300 V DC, Non-Indicating (MPN OTS110). Key specifications — Series: OTS; Brand: MERSEN; Manufacturer Part Number: OTS110.
MERSEN Fuse: Class K5, OTS Series, Fast-Acting, 400 A, 600 V AC, 300 V DC, Non-Indicating (MPN OTS400). Key specifications — Series: OTS; Brand: MERSEN; Manufacturer Part Number: OTS400.
MERSEN
MERSEN Fuse: Class K5, OTS Series, Fast-Acting, 400 A, 600 V AC, 300 V DC, Non-Indicating (MPN OTS400). Key specifications — Series: OTS; Brand: MERSEN; Manufacturer Part Number: OTS400.
MERSEN Fuse: Class K5, OT Series, Fast-Acting, 350 A, 250 V AC, 250 V DC, Non-Indicating (MPN OT350). Key specifications — Series: OT; Brand: MERSEN; Manufacturer Part Number: OT350.
MERSEN
MERSEN Fuse: Class K5, OT Series, Fast-Acting, 350 A, 250 V AC, 250 V DC, Non-Indicating (MPN OT350). Key specifications — Series: OT; Brand: MERSEN; Manufacturer Part Number: OT350.
Solar Fuse: HP10J Series, Gen Purpose, 200 A, 1 kV DC (MPN HP10J200EI). Key specifications — Series: HP10J; Brand: MERSEN; Voltage Compatability: AC/DC.
MERSEN
Solar Fuse: HP10J Series, Gen Purpose, 200 A, 1 kV DC (MPN HP10J200EI). Key specifications — Series: HP10J; Brand: MERSEN; Voltage Compatability: AC/DC.
MERSEN Fuse: Class K5, OTS Series, Fast-Acting, 10 A, 600 V AC, 300 V DC, Non-Indicating (MPN OTS100). Key specifications — Series: OTS; Brand: MERSEN; Manufacturer Part Number: OTS100.
MERSEN
MERSEN Fuse: Class K5, OTS Series, Fast-Acting, 10 A, 600 V AC, 300 V DC, Non-Indicating (MPN OTS100). Key specifications — Series: OTS; Brand: MERSEN; Manufacturer Part Number: OTS100.
MERSEN Fuse: Class K5, OTS Series, Fast-Acting, 250 A, 600 V AC, 300 V DC, Non-Indicating (MPN OTS250). Key specifications — Series: OTS; Brand: MERSEN; Manufacturer Part Number: OTS250.
MERSEN
MERSEN Fuse: Class K5, OTS Series, Fast-Acting, 250 A, 600 V AC, 300 V DC, Non-Indicating (MPN OTS250). Key specifications — Series: OTS; Brand: MERSEN; Manufacturer Part Number: OTS250.
Solar Fuse: HP10J Series, Gen Purpose, 100 A, 1 kV DC (MPN HP10J100). Key specifications — Series: HP10J; Brand: MERSEN; Voltage Compatability: AC/DC.
MERSEN
Solar Fuse: HP10J Series, Gen Purpose, 100 A, 1 kV DC (MPN HP10J100). Key specifications — Series: HP10J; Brand: MERSEN; Voltage Compatability: AC/DC.
MERSEN Fuse: Class K5, OT Series, Fast-Acting, 70 A, 250 V AC, 250 V DC, Non-Indicating (MPN OT70). Key specifications — Series: OT; Brand: MERSEN; Manufacturer Part Number: OT70.
MERSEN
MERSEN Fuse: Class K5, OT Series, Fast-Acting, 70 A, 250 V AC, 250 V DC, Non-Indicating (MPN OT70). Key specifications — Series: OT; Brand: MERSEN; Manufacturer Part Number: OT70.