| PartNumber | TDR4A33 | TDR4A11 | TDR4A12 |
| Description | Time Delay & Timing Relays SOLIDSTATEON/OFFTIME R | Time Delay & Timing Relays 120VAC DPDT RECYCLING OFF FIRST | Time Delay & Timing Relays SOLIDSTATEON/OFFTIME R |
| Manufacturer | Littelfuse | Littelfuse | Littelfuse |
| Product Category | Time Delay & Timing Relays | Time Delay & Timing Relays | Time Delay & Timing Relays |
| RoHS | Y | Y | Y |
| Termination Style | Plug-In | 8 Pin Octal Plug | Plug-In |
| Relay Contact Form | 2 Form C (DPDT-NO, NC) | 2 Form C (DPDT-NO, NC) | 2 Form C (DPDT-NO, NC) |
| Operating Supply Voltage | 120 VAC | 120 VAC | 120 VAC |
| Timing Range | 10 s to 10230 s | 0.1 s to 102.3 s | 0.1 s to 102.3 s |
| Contact Rating | 10 A | 10 A | 10 A |
| Series | TDR | TDR | TDR |
| Packaging | Bulk | Bulk | Bulk |
| Contact Form | DPDT (2 Form C) | DPDT (2 Form C) | DPDT (2 Form C) |
| Brand | Littelfuse | Littelfuse | Littelfuse |
| Product Type | Timing Relays | Timing Relays | Timing Relays |
| Factory Pack Quantity | 1 | 1 | 1 |
| Subcategory | Relays | Relays | Relays |