| 2CU20R Supplementary Protector 20A, 2 Pole, 277V AC, C Trip, UL1077 | Altech Corp. | | |
| 2CU25R Supplementary Protector 25A, 2 Pole, 277V AC, C Trip, UL1077 | Altech Corp. | | |
| 2CU63R Supplementary Protector 63A, 2 Pole, 277V AC, C Trip, UL1077 | Altech Corp. | | |
| 2DU2R Supplementary Protector 2A, 2 Pole, 277V AC, D Trip, UL1077 | Altech Corp. | | |
| 2DU40R Supplementary Protector 40A, 2 Pole, 277V AC, D Trip, UL1077 | Altech Corp. | | |
| 2DU02R 2DU02R,0.2A MCB,DCHAR,2POLE | Altech Corp. | | |
| 2C6UR Supplementary Protector 6A, 2 Pole, 480Y/277V AC, C Trip, UL1077 | Altech Corp. | | |
| 2C20UR Supplementary Protector 20A, 2 Pole, 480Y/277V AC, C Trip, UL1077 | Altech Corp. | | |
| 2D20UR Supplementary Protector 20A, 2 Pole, 480Y/277V AC, D Trip, UL1077 | Altech Corp. | | |
| 3DU12R Supplementary Protector 12A, 3 Pole, 277V AC, D Trip, UL1077 | Altech Corp. | | |