| 3D2UR Supplementary Protector 2A, 3 Pole, 480Y/277V AC, D Trip, UL1077 | Altech Corp. | $51.99 | |
| 3D5UR Supplementary Protector 5A, 3 Pole, 480Y/277V AC, D Trip, UL1077 | Altech Corp. | $51.99 | |
| 1CU20R Supplementary Protector 20A, 1 Pole, 277V AC, C Trip, UL1077 | Altech Corp. | $16.17 | |
| 1CU40R Supplementary Protector 40A, 1 Pole, 277V AC, C Trip, UL1077 | Altech Corp. | $17.32 | |
| 1DU8R Supplementary Protector 8A, 1 Pole, 277V AC, D Trip, UL1077 | Altech Corp. | $16.17 | |
| 1DU16R Supplementary Protector 16A, 1 Pole, 277V AC, D Trip, UL1077 | Altech Corp. | $16.17 | |
| 1CU1R Supplementary Protector 1A, 1 Pole, 277V AC, C Trip, UL1077 | Altech Corp. | $16.17 | |
| L8-10/3/B Sprecher + Schuh L8-10/3/B - Supplementary Protectors, CURVE-B, 10A, 3-POLE, UL1077/ NFPA79/ CSA/ CE | Sprecher + Schuh | $175.36 | |
| L8-40/3/B Sprecher + Schuh L8-40/3/B - Supplementary Protectors, CURVE-B, 40A, 3-POLE, UL1077/ NFPA79/ CSA/ CE | Sprecher + Schuh | $221.71 | |
| L8-5/3/B Sprecher + Schuh L8-5/3/B - Supplementary Protectors, CURVE-B, 5A, 3-POLE, UL1077/ NFPA79/ CSA/ CE | Sprecher + Schuh | $205.43 | |