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| PartNumber | 0LS45571Z | 0LS45573Z | 0LS45572Z |
| Description | Barrier Terminal Blocks 4557 Series 1 Pole Splicer Blocks | Barrier Terminal Blocks 4557 Series 3 Pole Splicer Blocks | Connector Accessories Plastic Cove |
| Manufacturer | Littelfuse | Littelfuse | Littelfuse Inc. |
| Product Category | Barrier Terminal Blocks | Barrier Terminal Blocks | Terminal Blocks - Power Distribution |
| RoHS | N | N | - |
| Product | Barrier Terminal Blocks | Barrier Terminal Blocks | - |
| Current Rating | 420 A | 420 A | 420A |
| Voltage Rating | 600 V | 600 V | 600 V |
| Type | Splicer Blocks | Splicer Blocks | Power Splicer Terminal Block |
| Mounting Style | Panel | Panel | Panel |
| Series | 4557 | 4557 | POWR-BLOKSR LS |
| Packaging | Bulk | Bulk | Bulk |
| Height | 74 mm | 74 mm | 74 mm |
| Length | 57.9 mm | 153 mm | 106 mm |
| Termination Style | Crimp | Crimp | Crimp |
| Width | 121 mm | 121 mm | 121 mm |
| Brand | Littelfuse | Littelfuse | - |
| Product Type | Barrier Terminal Blocks | Barrier Terminal Blocks | - |
| Factory Pack Quantity | 1 | 1 | - |
| Subcategory | Terminal Blocks | Terminal Blocks | - |
| Number of Poles | - | - | 2 |
| Voltage Rated | - | - | 600V |
| Line Side Connections Per Pole | - | - | 1 |
| Load Side Connections Per Pole | - | - | 1 |
| Line Side Connection Type | - | - | Screw Connection |
| Load Side Connection Type | - | - | Screw Connection |
| Line Side Wire Stud Size | - | - | 600MCM (kcmil) - #4CU/AL |
| Load Side Wire Stud Size | - | - | 600MCM (kcmil) - #4CU/AL |