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LITTELFUSE Fuse: Class RK5, FLNR Series, Time-Delay, 400 mA, 250 V AC, 125 V DC - Time-Delay Cylindrical Fuses
LITTELFUSETime-Delay Cylindrical Fuses

LITTELFUSE Fuse: Class RK5, FLNR Series, Time-Delay, 400 mA, 250 V AC, 125 V DC

The LITTELFUSE FLNR.400T is a Class RK5, time-delay cylindrical fuse from the FLNR Series, rated at 400 mA, 250 V AC and 125 V DC, with a non-indicating design. 3G Electric interprets this demand and sources the…

SKU 3G-OTH-28424

Brand
LITTELFUSE
Item
Fuse: Class RK5, FLNR Series, Time-Delay, 400 mA, 250 V AC, 125 V DC
Category
Time-Delay Cylindrical Fuses
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Technical Specifications

LITTELFUSE
Manufacturer Part Number
FLNR.400T
Series
FLNR
Type
FLNR Series, Time-Delay, 400 mA, Non-Indicating
AC
250 V
DC
125 V
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LITTELFUSE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The LITTELFUSE FLNR.400T is a Class RK5, time-delay cylindrical fuse from the FLNR Series, rated at 400 mA, 250 V AC and 125 V DC, with a non-indicating design. 3G Electric interprets this demand and sources the exact OEM part, backed by specialist expertise across 14 industrial departments — including electrical, power transmission, and controls — to ensure you get the right solution, not just a catalog listing.

Frequently Asked Questions

What is the LITTELFUSE FLNR.400T fuse used for?

The LITTELFUSE FLNR.400T is a Class RK5, time-delay cylindrical fuse rated 400 mA at 250 V AC or 125 V DC. It protects industrial motor circuits, lighting, and control transformers from overcurrent and short circuits. Its non-indicating design suits applications where visual fuse status is not required.

What are the specifications of the LITTELFUSE FLNR.400T fuse?

The LITTELFUSE FLNR.400T is a Class RK5, time-delay fuse rated 400 mA, 250 V AC, and 125 V DC. It is part of the FLNR series and is non-indicating. The manufacturer part number is FLNR.400T. It provides overcurrent protection for industrial equipment requiring a compact, cylindrical form factor.

Where to buy the LITTELFUSE FLNR.400T fuse worldwide?

You can source the LITTELFUSE FLNR.400T fuse through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply genuine LITTELFUSE components for industrial applications.

How to select the correct LITTELFUSE FLNR series fuse for an application?

To select the correct LITTELFUSE FLNR series fuse, match the voltage rating (250 V AC or 125 V DC) and current rating (e.g., 400 mA) to your circuit requirements. Ensure the time-delay characteristic accommodates inrush currents from motors or transformers. Consult the FLNR series datasheet for interrupting capacity and application guidelines.

Used in

Common applications for LITTELFUSE
Power electronics protection — Littelfuse PSR Series semiconductor fuses for IGBT and diode protection in variable frequency drives.
Solar photovoltaic systems — Littelfuse SPF Series fast-acting fuses for string overcurrent protection in PV arrays.
Automotive electrical systems — Littelfuse MIDI® 498 Series bolt-on fuses for battery and alternator protection in vehicles.
Industrial control panels — Littelfuse KLKD Series midget fuses for branch circuit protection in control transformers and relays.
Motor control centers — Littelfuse BLF Series fast-acting fuses for short-circuit protection of motor starters and contactors.

LITTELFUSE Products

3G Electric supplies LITTELFUSE time-delay cylindrical fuses. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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