| PartNumber | 1DU4L | 1DU40L | 1DU40R |
| Description | Circuit Breakers 4.0A One Pole "D" | Circuit Breakers 40A One Pole "D" | Circuit Breakers 40A D Characteristic UL 1077 1 POLE |
| Manufacturer | Altech | Altech | Altech |
| Product Category | Circuit Breakers | Circuit Breakers | Circuit Breakers |
| RoHS | Y | Y | Y |
| Series | L | L | R |
| Current Rating | 4 A | 40 A | 40 A |
| Voltage Rating AC | 277 VAC | 277 VAC | 277 VAC |
| Number of Poles | 1 Pole | 1 Pole | 1 Pole |
| Actuator Type | Handle | Handle | Handle |
| Minimum Operating Temperature | - 25 C | - 25 C | - 25 C |
| Maximum Operating Temperature | + 60 C | + 60 C | + 60 C |
| Illuminated | Not Illuminated | Not Illuminated | Not Illuminated |
| Termination Style | Screw | Screw | Screw |
| Voltage Rating | 277 V | 277 V | 277 VAC |
| Brand | Altech | Altech | Altech |
| Mounting Style | DIN Rail Mount | DIN Rail Mount | DIN Rail Mount |
| Product Type | D-Trip Circuit Breakers | D-Trip Circuit Breakers | D-Trip Circuit Breakers |
| Factory Pack Quantity | 12 | 12 | 12 |
| Subcategory | Circuit Breakers | Circuit Breakers | Circuit Breakers |
| Unit Weight | - | - | 4.585615 oz |