| PartNumber | 0LD55521Z | 0LD55791Z | 0LD55522Z |
| Description | Barrier Terminal Blocks 5552 Series 1 Term Distribution Block | Barrier Terminal Blocks 5579 Series 1 Term Distribution Block | Barrier Terminal Blocks 5552 Series 2 Term Distribution Block |
| Manufacturer | Littelfuse | Littelfuse | Littelfuse |
| Product Category | Barrier Terminal Blocks | Barrier Terminal Blocks | Barrier Terminal Blocks |
| RoHS | N | N | N |
| Product | Barrier Terminal Blocks | Barrier Terminal Blocks | Barrier Terminal Blocks |
| Current Rating | 380 A | 380 A | 380 A |
| Voltage Rating | 600 V | 600 V | 600 V |
| Type | Distribution Blocks | Distribution Blocks | Distribution Blocks |
| Mounting Style | Panel | Panel | Panel |
| Series | 5552 | 5579 | 5552 |
| Packaging | Bulk | Bulk | Bulk |
| Height | 79.2 mm | 79.2 mm | 79.2 mm |
| Length | 80.4 mm | 80.4 mm | 149 mm |
| Termination Style | Crimp | Crimp | Crimp |
| Width | 140 mm | 140 mm | 140 mm |
| Brand | Littelfuse | Littelfuse | Littelfuse |
| Product Type | Barrier Terminal Blocks | Barrier Terminal Blocks | Barrier Terminal Blocks |
| Factory Pack Quantity | 1 | 1 | 1 |
| Subcategory | Terminal Blocks | Terminal Blocks | Terminal Blocks |