| 1CU25R Supplementary Protector 25A, 1 Pole, 277V AC, C Trip, UL1077 | Altech Corp. | | |
| 1CU30R Supplementary Protector 30A, 1 Pole, 277V AC, C Trip, UL1077 | Altech Corp. | | |
| 1DU1R Supplementary Protector 1A, 1 Pole, 277V AC, D Trip, UL1077 | Altech Corp. | | |
| 1DU2R Supplementary Protector 2A, 1 Pole, 277V AC, D Trip, UL1077 | Altech Corp. | | |
| 1DU12R Supplementary Protector 12A, 1 Pole, 277V AC, D Trip, UL1077 | Altech Corp. | | |
| 1DU15R Supplementary Protector 15A, 1 Pole, 277V AC, D Trip, UL1077 | Altech Corp. | | |
| 1DU25R Supplementary Protector 25A, 1 Pole, 277V AC, D Trip, UL1077 | Altech Corp. | | |
| 1DU40R Supplementary Protector 40A, 1 Pole, 277V AC, D Trip, UL1077 | Altech Corp. | | |
| 2CU1R Supplementary Protector 1A, 2 Pole, 277V AC, C Trip, UL1077 | Altech Corp. | | |
| 2CU6R Supplementary Protector 6A, 2 Pole, 277V AC, C Trip, UL1077 | Altech Corp. | | |