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03453LS1H Littelfuse 03453LS1H is a panel mount cartridge fuse holder rated for 250V AC and 20A, with quick connect 0.187" terminals and accepts 3AG, 3AB, 5x20mm, and 2AG fuses.
Mfr Part #:

03453LS1H

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Littelfuse 03453LS1H is a panel mount cartridge fuse holder rated for 250V AC and 20A, with quick connect 0.187" terminals and accepts 3AG, 3AB, 5x20mm, and 2AG fuses.
Total Stock: 50 pcs

03453LS1H Available from 1 distributor

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03453LS1H Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Body Material
Compatible Fuse Sizes
Contact Finish
Contact Material
Contact Resistance
Current Rating
Current Rating (Amps)
For Use With
Fuse Size
Fuse Type
Fuseholder Type
Ingress Protection
Insulation Resistance
Knob Material
Lead Style
Mounting Torque
Mounting Type
Number of Circuits
Operating Temperature Range
Tape & Reel
Termination Style
Voltage
Voltage Rating

03453LS1H Description

Short technical summary and product information.

The Littelfuse 03453LS1H is a panel mount enclosed fuse holder from the 345 Series, designed to provide shock-safe protection as per IEC 60127-6. It accepts a variety of fuse sizes including 3AG, 3AB, 5x20mm, and 2AG, depending on the knob selected. The holder features a black glass-filled thermoplastic body with UL 94V-0 rating, and a knob available in grey, blue, or black. It offers dual-purpose terminals for soldering or 0.187" quick connect receptacles. Electrical specifications include a 250V AC voltage rating and 20A current rating, with insulation resistance of 10,000 MΩ minimum and contact resistance less than 0.005 Ω. The operating temperature range is -40°C to +85°C, and ingress protection is IP40 (IP52 with NP suffix). Mounting torque for threaded styles is 15 in-lb. This holder is suitable for various circuit protection applications requiring reliable fuse retention and easy replacement.

03453LS1H Quick Information

Product Type: Fuseholder
Series: 345
Canonical Name: Littelfuse 03453LS1H 345 Series Shock-Safe Panel Mount Enclosed Fuse Holder for 3AG/3AB/5x20mm/2AG Fuses, 250VAC, 20A, Quick Connect 0.187"
Subcategory: Panel Mount Fuseholder

03453LS1H Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

03453LS1H Features

  • Panel mount enclosed fuse holder for 3AG/3AB/5x20mm/2AG fuses.
  • Rated 250V AC and 20A continuous current.
  • Quick connect 0.187" (4.7mm) terminals.
  • Shock-safe design per IEC 60127-6.
  • Glass-filled thermoplastic body with UL 94V-0 rating.

03453LS1H Applications

  • Used in industrial control panels for circuit protection.
  • Ideal for power distribution and lighting systems.
  • Suitable for automotive and marine applications.
  • Provides overcurrent protection in consumer electronics.

03453LS1H FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the 03453LS1H fuse holder?

The current rating is 20 A.

What is the voltage rating of the 03453LS1H?

The voltage rating is 250V.

What fuse sizes are compatible with the 03453LS1H?

It accepts 3AG, 3AB, 5x20mm, and 2AG fuse sizes.

What is the mounting type of the 03453LS1H?

It is panel mount.

What termination style does the 03453LS1H use?

It uses Quick Connect - 0.187" (4.7mm) terminals.

What is the operating temperature range for the 03453LS1H?

The operating temperature range is -40°C to +85°C.

What is the ingress protection (IP) rating of the 03453LS1H?

The standard IP rating is IP40, with optional IP52 available with NP suffix.

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