| 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. | | |
| 3CU63R Supplementary Protector 63A, 3 Pole, 277V AC, C Trip, UL1077 | Altech Corp. | | |
| 3DU05R Supplementary Protector 0.5A, 3 Pole, 277V AC, D Trip, UL1077 | Altech Corp. | | |
| 3DU2R Supplementary Protector 2A, 3 Pole, 277V AC, D Trip, UL1077 | Altech Corp. | | |
| 1C15UR Supplementary Protector 15A, 1 Pole, 277V AC, C Trip, UL1077 | Altech Corp. | | |
| 1C25UR Supplementary Protector 25A, 1 Pole, 277V AC, C Trip, UL1077 | Altech Corp. | | |
| 1C60UR Supplementary Protector 60A, 1 Pole, 277V AC, C Trip, UL1077 | Altech Corp. | | |