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Supplementary Protectors
Altech Corp. Supplementary Protectors on Advantage Electric Supply


Supplementary Protectors- Altech Corp.
Supplementary protectors are devices designed to meet the UL 1077 requirements. They supplement circuit protection by providing over-current protection where branch circuit protection is already in place or not required.

247 products available










| Item | Manufacturer | Price | Stock | Delivery | |
|---|---|---|---|---|---|
![]() | 3CU8R Supplementary Protector 8A, 3 Pole, 277V AC, C Trip, UL1077 | Altech Corp. | $57.72 | Quick Quote | |
![]() | 3D1UR Supplementary Protector 1A, 3 Pole, 480Y/277V AC, D Trip, UL1077 | Altech Corp. | $61.85 | Quick Quote | |
![]() | 3D2UR Supplementary Protector 2A, 3 Pole, 480Y/277V AC, D Trip, UL1077 | Altech Corp. | $61.85 | Quick Quote | |
![]() | 3D5UR Supplementary Protector 5A, 3 Pole, 480Y/277V AC, D Trip, UL1077 | Altech Corp. | $61.85 | Quick Quote | |
![]() | 3DU16R Supplementary Protector 16A, 3 Pole, 277V AC, D Trip, UL1077 | Altech Corp. | $57.72 | Quick Quote | |
![]() | 3DU30R Supplementary Protector 30A, 3 Pole, 277V AC, D Trip, UL1077 | Altech Corp. | $57.72 | Quick Quote | |
![]() | 3DU3R Supplementary Protector 3A, 3 Pole, 277V AC, D Trip, UL1077 | Altech Corp. | $57.72 | Quick Quote | |
![]() | 3DU4R Supplementary Protector 4A, 3 Pole, 277V AC, D Trip, UL1077 | Altech Corp. | $57.72 | Quick Quote | |
![]() | 3DU60R Supplementary Protector 60A, 3 Pole, 277V AC, D Trip, UL1077 | Altech Corp. | $61.84 | Quick Quote | |
![]() | 3DU6R Supplementary Protector 6A, 3 Pole, 277V AC, D Trip, UL1077 | Altech Corp. | $57.72 | Quick Quote | |