| PartNumber | 01550004ZXA | 01550006ZXA | 01550004ZXU |
| Description | Fuse Holder Inline 4A | Fuse Holder Inline 6A | Fuse Holder Inline 4A Unassembled |
| Manufacturer | Littelfuse | Littelfuse | Littelfuse Inc. |
| Product Category | Fuse Holder | Fuse Holder | Fuseholders |
| RoHS | Y | Y | - |
| Series | 155 | 155 | 155 |
| Product | Fuse Holders | Fuse Holders | Fuse Holders |
| Mounting Style | In-Line | In-Line | In-Line |
| Number of Poles | 1 Pole | 1 Pole | 1 Pole |
| Current Rating | 4 A | 6 A | 4A |
| Voltage Rating | 32 V | 32 V | 32 V |
| Shaft Type | Bayonet Knob Release | Bayonet Knob Release | Bayonet Knob Release |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 125 C | + 125 C | - |
| Packaging | Bulk | Bulk | Bulk |
| Color | Black | Black | Black |
| Illumination | Not Illuminated | Not Illuminated | Not Illuminated |
| Brand | Littelfuse | Littelfuse | - |
| Product Type | Fuse Holders | Fuse Holders | - |
| Factory Pack Quantity | 100 | 100 | - |
| Subcategory | Fuses | Fuses | - |
| For Use With Related Products | - | - | SFE-4 |
| Termination Style | - | - | Crimp |
| Operating Temperature Range | - | - | - 40 C to + 125 C |
| Mounting Type | - | - | Free Hanging In Line |
| Number of Circuits | - | - | |
| Voltage | - | - | 32V |
| Fuse Type | - | - | Cartridge |
| Fuseholder Type | - | - | Holder |
| Fuse Size | - | - | 1/4" Dia x 5/8" L (6.35mm x 15.8mm) |
| Orientation | - | - | - |
| Contact Material | - | - | Brass |
| Contact Finish | - | - | Tin |