03540621ZXBL

FUSE BLOCK, 6.3 X 32MM

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Manufacturer: LITTELFUSE
Product type: Fuse Holders
Fuse Holder Type:Cartridge Fuse Holder; Fuse Current:20A; Fuse Size Held:1/4" x 1.1/4", 6.3mm x 32mm; Holder Terminals:Quick Connect; No. of Fuses:1Fuses; Product Range:OMNI-BL 12J4408
Fuse Current: 20A
No. of Fuses: 1Fuses
Fuse Size Held: 1/4" x 1.1/4", 6.3mm x 32mm
Fuse Holder Type: Cartridge Fuse Holder
Holder Terminals: Quick Connect
Voltage Rating VAC: 300V
Voltage Rating VDC: 300V

Delivery and price
Units per pack	2500
Price	0.673 €
Current stock	10+
Lead time	30 days

Datasheet

**Cartridge Fuse Blocks** Fuse Block > 354 Series 

~~**RoHS**~~ **Pb** ~~|[|@cSAdus@] ®,~~ 

## 354 Series OMNI-BLOK[®] Molded Bas ~~e Fuse Block for 3AB/3AG Fuses~~ 

## ~~**Agency Approval**~~ 

**Agency Agency File Number** cds E14721* 7316** 

- **-** UL Recognized to UL/CSA 4248.1 

**** -** CSA Certified to CSA C22.2 No 39-M1987 

## ~~**Product & Mounting Dimensions**~~ 

|**Compatible Fuses Size**<br>**3AB/AG**<br>~~**Product Characteristics**~~<br>~~Po~~|**Compatible Fuses Size**<br>**3AB/AG**<br>~~**Product Characteristics**~~<br>~~Po~~|**Compatible Fuses Size**<br>**3AB/AG**<br>~~**Product Characteristics**~~<br>~~Po~~|
|---|---|---|
|||A low profile fuse block featuring individual|
|||barriers which reinforce the fuse clips while|
|||providing greater protection against clip|
|||damage and electrical shock. The unique|
|||design permits self-alignment of clips|
|**Description**||to fuse cap. This, plus a one-piece clip/<br>terminal assures low contact resistance.<br>Higher currect ratings have been attained<br>using spring brass clips. With the exception|
|||of the two-pole unit, multiple pole units|
|||may be broken apart to obtain desired|
|||number ofpoles|
|**Dielectric Strength**||2200V., Minimum|
|**Clip/Terminals**||Tin plated phosphorus bronze except for<br>354900 series which is tin plated spring|
|||brass.|
|||Glass reinforced Thermoplastic. UL 94V0<br>flammability rating. The standard base color<br>is Gray except for 345 x21 items (single|
|**Base**||pole products which include anti-rotation<br>boss option) where the standard base color|
|||is Black.  Refer to the Ordering Information|
|||table on the following page for more<br>information.|
|**Ambient Temperature**||–40ºCto +85ºC|



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.312˝(7.9mm) REF. DIA. C BORE<br>.06˝ (1.5mm) REF. DEEP (.10 REMAINS) PC Board Solder Terminals Type<br>(displayed as single pole unit)<br>Lr (es ) a } (OV .53˝ REF. (13.5mm)<br>=" = frm Hy<br>1.46˝<br>i —) (SpE)| [-}——{_] .146˝ REF. (3.7mm)DIA. THRU +— ) REF. (37.1mm) —| °,<br>A (35.6mm)1.4˝ .06˝  DIA. (2)(1.5mm)<br>Quick Clip Terminals Type<br>i — | [-——_f_] (displayed with anti-rotation boss<br>applicable to single pole 354 x21 items only)<br>.625˝ (15.9mm)TYP. .08˝ REF.(2.0mm) 45 .55˝ MAX. (14mm)<br>Anti-Rotation Boss Option<br>nF ES) .08˝ REF. DIA. (2.0mm)<br>— 2.19˝ REF.(55.6mm)(35.6mm)1.4˝ au__ (6.4mm)TYP..25˝ .10˝ DIA.(2.5mm) i (16.51mm) - .65˝ -| .156˝ DIA. (4.0mm)<br>Quick Clip Terminals Type<br>with anti-rotation boss applicable<br>032 to single pole 354 701 items only.<br>[.81]<br>2x<br>+ [|L_IO| s \ 45º REF<br>.08” [2.0]REF 4 .260” [6.6]<br>PN Anti-Rotation Boss Option.08” [2.0] REF DIA<br>.10”  —»o — .156” [4.0]DIA<br>* Anti-Rotation Boss Option is not available on multiple poles. [2.5]DIA 4 [16.51].65”<br>Clip Detail<br>ss |,<br>$ +<br>Solder 3/16”  Q.C. 3/16”  Q.C. 1/4”  P.C. Board<br>X<br>X<br>X<br>X<br>X<br>X<br>X<br>X<br>X<br>X<br>**----- End of picture text -----**<br>


## ~~**Electrical Information**~~ 

|**Series or Catalog**<br>**Number**<br>354 000<br>354 600<br>354 700<br>354 800<br>354 900<br>354 101-GY|**Terminals**<br>Solder<br>3/16” Q.C.<br>1/4” Q.C. .032” Clip<br>1/4” Q.C.<br>1/4” Q.C.<br>P.C. Board|**Rating**<br>30A, 600 VDC/VAC*<br>20A, 600 VDC/VAC<br>30A, 600 VDC/VAC<br>20A, 600 VDC/VAC<br>30A, 600 VDC/VAC<br>15A, 600 VDC/VAC|
|---|---|---|



*30 amp capability is based on temperature rise with #10 AWG wire properly soldered. 

## **Additional Information** 

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Datasheet Resources Samples<br>**----- End of picture text -----**<br>


**Note:** Two different style clips can be supplied for circuit identity or polarization. Contact Littelfuse. 

© 2019 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 12/13/19 

**Cartridge Fuse Blocks** 

Fuse Block > 354 Series 

**==> picture [94 x 32] intentionally omitted <==**

## ~~**Ordering Information**~~ 

**==> picture [506 x 186] intentionally omitted <==**

**----- Start of picture text -----**<br>
Solder Terminals Quick Clip TerminalsNEMA Style 3/16”  1/4” Quick Clip Terminals NEMA Style 1/4” Quick Clip  .032” Terminals NEMA Style 1/4” Quick Clip Terminals Number of  Dimension “A" Reference<br>Poles<br>Ordering No. Ordering No. [mm]<br>03540101ZXGY – – – – 1 .50” [12.7]<br>03540021ZXBL* 03540621ZXBL* 03540821ZXBL* – 03540921ZXBL* 1 .50” [12.7]<br>03540001ZXGY 03540601ZXGY 03540801ZXGY 03540701ZXGY* 03540901ZXGY 1 .50” [12.7]<br>03540002ZXGY 03540602ZXGY 03540802ZXGY 03540702ZXGY 03540902ZXGY 2 1.12” [28.5]<br>03540003ZXGY 03540603ZXGY 03540803ZXGY 03540703ZXGY 03540903ZXGY 3 1.75” [44.5]<br>03540004ZXGY 03540604ZXGY 03540804ZXGY 03540704ZXGY 03540904ZXGY 4 2.38” [60.5]<br>03540005ZXGY 03540605ZXGY 03540805ZXGY 03540705ZXGY 03540905ZXGY 5 3.00” [76.2]<br>03540006ZXGY 03540606ZXGY 03540806ZXGY 03540706ZXGY 03540906ZXGY 6 3.63” [92.2]<br>03540007ZXGY 03540607ZXGY 03540807ZXGY 03540707ZXGY 03540907ZXGY 7 4.25” [108.0]<br>03540008ZXGY 03540608ZXGY 03540808ZXGY 03540708ZXGY 03540908ZXGY 8 4.88” [124.0]<br>03540009ZXGY 03540609ZXGY 03540809ZXGY 03540709ZXGY 03540909ZXGY 9 5.50” [139.7]<br>03540010ZXGY 03540610ZXGY 03540810ZXGY 03540710ZXGY 03540910ZXGY 10 6.13” [155.7]<br>03540011ZXGY 03540611ZXGY 03540811ZXGY 03540711ZXGY 03540911ZXGY 11 6.75” [171.5]<br>03540012ZXGY 03540612ZXGY 03540812ZXGY 03540712ZXGY 03540912ZXGY 12 7.38” [187.5]<br>**----- End of picture text -----**<br>


* With Anti-Rotation Boss 

**Disclaimer Notice -** Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at: www.littelfuse.com/disclaimer-electronics. 

© 2019 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 12/13/19

Updated at June 10, 2026

Founded in 1927 and headquartered in Chicago, Illinois, Littelfuse is a premier global manufacturer of circuit protection, power control, and sensing technologies. Widely recognized for pioneering the first small, fast-acting protective fuse, the company has grown into an industry leader whose highly reliable components are essential to modern industrial, transportation, and consumer electronics applications worldwide. At the core of the Littelfuse portfolio is an expansive and industry-leading range of circuit protection solutions. This encompasses a massive selection of traditional fuses, fuse holders, and resettable PTC thermistor fuses designed to safely interrupt overcurrent conditions. To defend against electrical overstress, Littelfuse also provides advanced transient voltage suppression (TVS) technologies, including thousands of specialized TVS diodes, TVS varistors, and gas discharge tubes (GDTs) that ensure robust defense against voltage spikes and environmental hazards. Beyond its foundational protection components, Littelfuse manufactures a diverse array of discrete semiconductors, sensors, and switching devices. Engineers rely on their high-performance thyristors, including TRIACs and SCRs, alongside power-efficient Schottky diodes and MOSFETs for demanding power control applications. Complemented by precision proximity sensors and highly reliable reed and solid-state relays, Littelfuse delivers the critical building blocks required for secure, efficient, and complete system design.

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