Miniature Circuit Breakers mMCCB-1 pole
| In/IΔn | Type Designation | Article No. | Units Per Package |
| 1 | mMCCB-1/1 | 138858 | 12/120 |
| 2 | mMCCB-2/1 | 138859 | 12/120 |
| 4 | mMCCB-4/1 | 138861 | 12/120 |
| 6 | mMCCB-6/1 | 138862 | 12/120 |
| 10 | mMCCB-10/1 | 138863 | 12/120 |
| 16 | mMCCB-16/1 | 138865 | 12/120 |
| 20 | mMCCB-20/1 | 138866 | 12/120 |
| 25 | mMCCB-25/1 | 138867 | 12/120 |
| 32 | mMCCB-32/1 | 138868 | 12/120 |
| 40 | mMCCB-40/1 | 138869 | 12/120 |
| 50 | mMCCB-50/1 | 138870 | 12/120 |
| 63 | mMCCB-63/1 | 138871 | 12/120 |
