| 3C3UR Supplementary Protector 3A, 3 Pole, 480Y/277V AC, C Trip, UL1077 | Altech Corp. | | |
| 3C13UR Supplementary Protector 13A, 3 Pole, 480Y/277V AC, C Trip, UL1077 | Altech Corp. | | |
| 3C15UR Supplementary Protector 15A, 3 Pole, 480Y/277V AC, C Trip, UL1077 | Altech Corp. | | |
| 3D3UR Supplementary Protector 3A, 3 Pole, 480Y/277V AC, D Trip, UL1077 | Altech Corp. | | |
| 3D4UR Supplementary Protector 4A, 3 Pole, 480Y/277V AC, D Trip, UL1077 | Altech Corp. | | |
| 3D15UR Supplementary Protector 15A, 3 Pole, 480Y/277V AC, D Trip, UL1077 | Altech Corp. | | |
| 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. | | |
| 2D16UR Supplementary Protector 16A, 2 Pole, 480Y/277V AC, D Trip, UL1077 | Altech Corp. | | |
| 2D10UR Supplementary Protector 10A, 2 Pole, 480Y/277V AC, D Trip, UL1077 | Altech Corp. | | |