| 3DU32R Supplementary Protector 32A, 3 Pole, 277V AC, D Trip, UL1077 | Altech Corp. | | |
| 3DU50R Supplementary Protector 50A, 3 Pole, 277V AC, D Trip, UL1077 | Altech Corp. | | |
| 1C05UR Supplementary Protector 0.5A, 1 Pole, 277V AC, C Trip, UL1077 | Altech Corp. | | |
| 1C4UR Supplementary Protector 4A, 1 Pole, 277V AC, C Trip, UL1077 | Altech Corp. | | |
| 1C12UR Supplementary Protector 12A, 1 Pole, 277V AC, C Trip, UL1077 | Altech Corp. | | |
| 1C20UR Supplementary Protector 20A, 1 Pole, 277V AC, C Trip, UL1077 | Altech Corp. | | |
| 1C50UR Supplementary Protector 50A, 1 Pole, 277V AC, C Trip, UL1077 | Altech Corp. | | |
| 1D6UR Supplementary Protector 6A, 1 Pole, 277V AC, D Trip, UL1077 | Altech Corp. | | |
| 1D13UR Supplementary Protector 13A, 1 Pole, 277V AC, D Trip, UL1077 | Altech Corp. | | |
| 1D40UR Supplementary Protector 40A, 1 Pole, 277V AC, D Trip, UL1077 | Altech Corp. | | |