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FSM 5x20 FSM 5x20 - Device fuse 5 x 20 mm  medium time-lag M en IM0005328

Series: FSM 5x20

Miniature Fuse, 5 x 20 mm, Medium-Time-Lag M, 250 VAC

Free Sample Request

16 Variants


  • Low and Medium Breaking Capacity

Rated Voltage

250 VAC, 125 VDC 

Rated current

0.315 - 10 A

Breaking Capacity

80 A - 1000 A


Medium-Time-Lag M


Fuseholder / Clip

Admissible Ambient Air Temp.

-40 °C to 85 °C

Climatic Category

40/085/21 acc. to IEC 60068-1

Material: Tube

Glass / Ceramic

Material: Endcaps

Nickel-Plated Copper Alloy

Unit Weight

0.92 g

Storage Conditions

0 °C to 60 °C, max. 70% r.h.

Product Marking

S_SCHURTER_Logo, Rated current, Rated Voltage, Characteristic

Detailed information on product approvals, code requirements, usage instructions and detailed test conditions can be looked up in  Details about Approvals
SCHURTER products are designed for use in industrial environments. They have approvals from independent testing bodies according to national and international standards. Products with specific characteristics and requirements such as required in the automotive sector according to IATF 16949, medical technology according to ISO 13485 or in the aerospace industry can be offered exclusively with customer-specific, individual agreements by SCHURTER.

Application standards

Application standards where the product can be used

Organization Design Standard Description
Partners IEC_Certification_Body Designed for applications acc. IEC/UL 60950 IEC 60950-1 includes the basic requirements for the safety of information technology equipment.


The product complies with following Guide Lines

Identification Details Initiator Description
Approval marks CE Selbsteklaration SCHURTER AG The CE marking declares that the product complies with the applicable requirements laid down in the harmonisation of Community legislation on its affixing in accordance with EU Regulation 765/2008.
Environment_Safety RoHS_Logo_color_CMYK_tif SCHURTER AG Directive RoHS 2011/65/EU, Amendment (EU) 2015/863
Environment_Safety China_RoHS_e_konform_eps SCHURTER AG The law SJ / T 11363-2006 (China RoHS) has been in force since 1 March 2007. It is similar to the EU directive RoHS.
Environment_Safety REACH SCHURTER AG On 1 June 2007, Regulation (EC) No 1907/2006 on the Registration, Evaluation, Authorization and Restriction of Chemicals 1 (abbreviated as "REACH") entered into force.


Picture(s) Selection of product pictures to display a specific variant of the type


Type Corresponds to a product series and includes various distinct variants. On the type of descriptive data are summarized, eg in the data sheet

Order Number

Order Number Unique part number for placing an order

Configuration key

Configuration key The configuration key of a product consists of the composite key values, which describe the different kinds of attribut distinction.


Comment CAD drawings are for modeling purposes only

Model Description

Model Description Abbreviated description of the CAD model


IGS Also mentioned as IGES ( Initial Graphics Exchange Specification). Common program indipendent interchange format for 3D CAD data.


Step Also mentioned as STEP ( Standard for the Exchange of Product Model Data). Common program indipendent interchange format for 3D CAD data standardized according ISO standard.


Parasolid Parasolid modeling kernel is a 3D CAD systems. It is developed by a separate business unit within the Unigraphics Solutions (UGS), now Siemens PLM Software.


DXF (Drawing Interchange Format) is a specified by the Autodesk file format for CAD data exchange, and was developed for the 2D-CAD program AutoCAD. A DXF file describes a CAD model as plain text to the ASCII standard.

FSM 5x20 FSM 5x20
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FSM 5x20 FSM 5x20
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FSM 5x20 FSM 5x20
FSM 5x20 FSM 5x20
FSM 5x20 FSM 5x20
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FSM 5x20 FSM 5x20

Dimension [mm]

Pre-Arcing Time

Rated Current In 1.5 x In min. 2.1 x In max. 4.0 x In min. 4.0 x In max. 10.0 x In min. 10.0 x In max.
0.315 A - 1.25 A 60 min 10 min 40 ms 2 s 5 ms 90 ms
1.6 A - 10 A 60 min 30 min 40 ms 2 s 5 ms 90 ms


Time in Seconds
Multiple of Rated Current In

Short Table of Variants FSM 5x20 Open complete table FSM 5x20

Rated Current [A] Rated Voltage [VAC] Breaking Capacity Order Number A=Most Popular

A=Most Popular

Most popular products have the following customer benefits:
- previously ordered by multiple customers
- generally in stock for immediate delivery
- early adoption or mature life cycle
Contact us for availability on other product variants, lead-times vary:
Contact-Form Availability for all products can be searched real-time. Enter part number and required quantity:
Stock Check SCHURTER

Free Sample

Free Sample

Please ask for free sample in order to check if the products meets your requirement for your application. Send your delivery adress and your specific requirements.

Distributor Stock Check

Distributor Stock Check

The following links refers to the inquiry form for distributors stock information of the selected products. It allows checking for the available amount and optionally to place an order at your selected partner.
The stock availability at the distributors may also be called up separately and the desired product manually entered.
Stock Check Distributor

0.315 250 1) 0034.2511  A  ...
0.4 250 1) 0034.2512  A  ...
0.5 250 1) 0034.2513  A  ...
0.63 250 1) 0034.2514 ...
0.8 250 1) 0034.2515 ...
1 250 1) 0034.2516  A  ...
1.25 250 1) 0034.2517 ...
1.6 250 2) 0034.2518  A  ...
2 250 2) 0034.2519  A  ...
2.5 250 2) 0034.2520  A  ...
3.15 250 2) 0034.2521  A  ...
4 250 2) 0034.2522  A  ...
5 250 2) 0034.2523  A  ...
6.3 250 2) 0034.2524  A  ...
8 250 3) 0034.2525  A  ...
10 250 3) 0034.2526  A  ...

Most Popular.

1) 80 A @ 250 VAC / 80 A @ 125 VDC

2) 1000 A @ 250 VAC / 1000 A @ 125 VDC

3) 300 A @ 250 VAC / 300 A @ 125 VDC

Glass Tube: 0.315 A - 1.25 A

Ceramic Tube: 1.6 A - 10 A

Date Subcategory Language Title Download
PCN English PCN Change of label
White Paper English White Paper Fuse Selection
PCS English FSM-5x20 Product Content Sheet

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