| 1C30UR Supplementary Protector 30A, 1 Pole, 277V AC, C Trip, UL1077 | Altech Corp. | | |
| 2C5UR Supplementary Protector 5A, 2 Pole, 480Y/277V AC, C Trip, UL1077 | Altech Corp. | | |
| 2C10UR Supplementary Protector 10A, 2 Pole, 480Y/277V AC, C Trip, UL1077 | Altech Corp. | | |
| 2C12UR Supplementary Protector 12A, 2 Pole, 480Y/277V AC, C Trip, UL1077 | Altech Corp. | | |
| 2C16UR Supplementary Protector 16A, 2 Pole, 480Y/277V AC, C Trip, UL1077 | Altech Corp. | | |
| 2C25UR Supplementary Protector 25A, 2 Pole, 480Y/277V AC, C Trip, UL1077 | Altech Corp. | | |
| 2C30UR Supplementary Protector 30A, 2 Pole, 480Y/277V AC, C Trip, UL1077 | Altech Corp. | | |
| 2D3UR Supplementary Protector 3A, 2 Pole, 480Y/277V AC, D Trip, UL1077 | Altech Corp. | | |
| 2D5UR Supplementary Protector 5A, 2 Pole, 480Y/277V AC, D Trip, UL1077 | Altech Corp. | | |
| 2D13UR Supplementary Protector 13A, 2 Pole, 480Y/277V AC, D Trip, UL1077 | Altech Corp. | | |