| 3D20UR Supplementary Protector 20A, 3 Pole, 480Y/277V AC, D Trip, UL1077 | Altech Corp. | | |
| 3D25UR Supplementary Protector 25A, 3 Pole, 480Y/277V AC, D Trip, UL1077 | Altech Corp. | | |
| 3D63UR Supplementary Protector 63A, 3 Pole, 480Y/277V AC, D Trip | Altech Corp. | | |
| 1CU5R Supplementary Protector 5A, 1 Pole, 277V AC, C Trip, UL1077 | Altech Corp. | | |
| 1CU13R Supplementary Protector 13A, 1 Pole, 277V AC, C Trip, UL1077 | Altech Corp. | | |
| 1CU63R Supplementary Protector 63A, 1 Pole, 277V AC, C Trip, UL1077 | Altech Corp. | | |
| 1DU05R Supplementary Protector 0.5A, 1 Pole, 277V AC, D Trip, UL1077 | Altech Corp. | | |
| 1DU3R Supplementary Protector 3A, 1 Pole, 277V AC, D Trip, UL1077 | Altech Corp. | | |
| 1DU6R Supplementary Protector 6A, 1 Pole, 277V AC, D Trip, UL1077 | Altech Corp. | | |
| 1CU1R Supplementary Protector 1A, 1 Pole, 277V AC, C Trip, UL1077 | Altech Corp. | | |