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| PartNumber | 0MCB030.X | 0MCB020.X | 0MCB020.Z |
| Description | Circuit Breakers 30A | Circuit Breakers 20A | Circuit Breakers 20A Footprint MAX Wide Type 1 |
| Manufacturer | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. |
| Product Category | Accessories | Accessories | Accessories |
| Series | MAXI, Automotive | MAXI, Automotive | MAXI, Automotive |
| Product | Aftermarket Circuit Breakers | Aftermarket Circuit Breakers | - |
| Type | Maxi | Maxi | - |
| Packaging | Bulk | Bulk | Bulk |
| Mounting Style | Blade | Blade | - |
| Number of Poles | 1 | 1 | 1 |
| Current Rating | 30A | 20A | 20A |
| Termination Style | Blade | Blade | - |
| Voltage Rating | 12 VDC | 12 VDC | - |
| Mounting Type | Holder | Holder | Holder |
| Voltage Rating AC | - | - | - |
| Voltage Rating DC | 12 VDC | 12 VDC | 12V |
| Breaker Type | - | - | - |
| Actuator Type | Automatic Reset | Automatic Reset | Automatic Reset |
| Illumination | - | - | - |
| Illumination Voltage Nominal | - | - | - |
| Product Type | Circuit Breakers | Circuit Breakers | - |
| Illuminated | Not Illuminated | Not Illuminated | - |