| PartNumber | ERDM123 | ERDM128 | ERDM126 |
| Description | Time Delay & Timing Relays ECONO-TIMER(D.O.M.) | Time Delay & Timing Relays ECONO-TIMER(D.O.M.) | Time Delay & Timing Relays ECONO-TIMER(D.O.M.) |
| Manufacturer | Littelfuse | Littelfuse | Littelfuse |
| Product Category | Time Delay & Timing Relays | Time Delay & Timing Relays | Time Delay & Timing Relays |
| RoHS | Y | Y | Y |
| Display Type | Hand Dial | Hand Dial | Hand Dial |
| Termination Style | Quick Connect Terminal | Quick Connect Terminal | Quick Connect Terminal |
| Relay Contact Form | 2 Form C (DPDT-NO, NC) | 2 Form C (DPDT-NO, NC) | 2 Form C (DPDT-NO, NC) |
| Timing Range | 0.1 s to 10 s | 0.1 m to 10 m | 0.6 s to 60 s |
| Contact Rating | 10 A | 10 A | 10 A |
| Series | ERDM | ERDM | ERDM |
| Packaging | Bulk | Bulk | Bulk |
| Contact Form | DPDT (2 Form C) | DPDT (2 Form C) | DPDT (2 Form C) |
| Type | Delay On Make Timer | Delay On Make Timer | Delay On Make Timer |
| Brand | Littelfuse | Littelfuse | Littelfuse |
| Product Type | Timing Relays | Timing Relays | Timing Relays |
| Factory Pack Quantity | 1 | 1 | 1 |
| Subcategory | Relays | Relays | Relays |
| Unit Weight | 5.699995 oz | 5.699995 oz | 5.699995 oz |
| Operating Supply Voltage | - | - | - |