| 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. | | |
| 2D50UR Supplementary Protector 50A, 2 Pole, 480Y/277V AC, D Trip, UL1077 | Altech Corp. | | |
| 3C2UR Supplementary Protector 2A, 3 Pole, 480Y/277V AC, C Trip, UL1077 | Altech Corp. | | |
| 3C6UR Supplementary Protector 6A, 3 Pole, 480Y/277V AC, C Trip, UL1077 | Altech Corp. | | |
| 3C32UR Supplementary Protector 32A, 3 Pole, 480Y/277V AC, C Trip, UL1077 | Altech Corp. | | |
| 3C63UR Supplementary Protector 63A, 3 Pole, 480Y/277V AC, C Trip | Altech Corp. | | |
| 3D12UR Supplementary Protector 12A, 3 Pole, 480Y/277V AC, D Trip, UL1077 | Altech Corp. | | |
| 3D13UR Supplementary Protector 13A, 3 Pole, 480Y/277V AC, D Trip, UL1077 | Altech Corp. | | |
| ST203M-Z1.6 Supplementary Curcuit Protector, 3 pole, 1.6 Amp, 277 VAC, Z Curve, UL 1077 | ABB Control | | |