| PartNumber | 3D40UM | 3D40UR | 3D40UL |
| Description | Circuit Breakers 40A D Characteristic UL 508 3 POLE | Circuit Breakers 40A,MCB D CHAR 3PL 480Y/277VAC, UL1077 | Circuit Breakers 40A, D CHAR, 3POLE 240VAC,UL489 |
| Manufacturer | Altech | Altech | Altech |
| Product Category | Circuit Breakers | Circuit Breakers | Circuit Breakers |
| RoHS | Y | Y | Y |
| Series | UM | UR | UL |
| Current Rating | 40 A | 40 A | 40 A |
| Voltage Rating AC | 277 VAC | 277 VAC | 240 VAC |
| Voltage Rating DC | 80 VDC | - | - |
| Number of Poles | 3 Pole | 3 Pole | 3 Pole |
| Actuator Type | Handle | Handle | Handle |
| Minimum Operating Temperature | - 25 C | - 25 C | - 25 C |
| Maximum Operating Temperature | + 55 C | + 55 C | + 55 C |
| Illuminated | Not Illuminated | Not Illuminated | Not Illuminated |
| Termination Style | Box Clamp, Ring Tongue | Box Clamp, Ring Tongue | Box Clamp, Ring Tongue |
| Voltage Rating | 277 VAC, 80 VDC | - | - |
| 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 | 4 | 4 | 4 |
| Subcategory | Circuit Breakers | Circuit Breakers | Circuit Breakers |