| 2CU40R Supplementary Protector 40A, 2 Pole, 277V AC, C Trip, UL1077 | Altech Corp. | $34.66 | |
| 2DU1R Supplementary Protector 1A, 2 Pole, 277V AC, D Trip, UL1077 | Altech Corp. | $32.33 | |
| 2DU8R Supplementary Protector 8A, 2 Pole, 277V AC, D Trip, UL1077 | Altech Corp. | $32.33 | |
| 2DU32R Supplementary Protector 32A, 2 Pole, 277V AC, D Trip, UL1077 | Altech Corp. | $32.33 | |
| 2DU50R Supplementary Protector 50A, 2 Pole, 277V AC, D Trip, UL1077 | Altech Corp. | $34.66 | |
| 2DU63R Supplementary Protector 63A, 2 Pole, 277V AC, D Trip, UL1077 | Altech Corp. | $34.66 | |
| 1CU05R Supplementary Protector 0.5A, 1 Pole, 277V AC, C Trip, UL1077 | Altech Corp. | $16.17 | |
| 1CU4R Supplementary Protector 4A, 1 Pole, 277V AC, C Trip, UL1077 | Altech Corp. | $16.17 | |
| 1CU2R Supplementary Protector 2A, 1 Pole, 277V AC, C Trip, UL1077 | Altech Corp. | $16.17 | |
| 2C4UR Supplementary Protector 4A, 2 Pole, 480Y/277V AC, C Trip, UL1077 | Altech Corp. | $34.66 | |