| 2CU05R Supplementary Protector 0.5A, 2 Pole, 277V AC, C Trip, UL1077 | Altech Corp. | | |
| 2CU3R Supplementary Protector 3A, 2 Pole, 277V AC, C Trip, UL1077 | Altech Corp. | | |
| 2CU5R Supplementary Protector 5A, 2 Pole, 277V AC, C Trip, UL1077 | Altech Corp. | | |
| 2CU10R Supplementary Protector 10A, 2 Pole, 277V AC, C Trip, UL1077 | Altech Corp. | | |
| 2CU30R Supplementary Protector 30A, 2 Pole, 277V AC, C Trip, UL1077 | Altech Corp. | | |
| 2DU3R Supplementary Protector 3A, 2 Pole, 277V AC, D Trip, UL1077 | Altech Corp. | | |
| 2DU15R Supplementary Protector 15A, 2 Pole, 277V AC, D Trip, UL1077 | Altech Corp. | | |
| 2DU20R Supplementary Protector 20A, 2 Pole, 277V AC, D Trip, UL1077 | Altech Corp. | | |
| 2DU25R Supplementary Protector 25A, 2 Pole, 277V AC, D Trip, UL1077 | Altech Corp. | | |
| 3CU05R Supplementary Protector 0.5A, 3 Pole, 277V AC, C Trip, UL1077 | Altech Corp. | | |