| 3DU2R Supplementary Protector 2A, 3 Pole, 277V AC, D Trip, UL1077 | Altech Corp. | $48.51 | |
| | ABB Control | $952.05 | |
| ST203M-K15NA Supplementary Curcuit Protector, 3 pole, 15.0 Amp, 277 VAC, K Curve, UL 1077, w/... | ABB Control | $474.85 | |
| | ABB Control | $222.34 | |
| 2C4UR Supplementary Protector 4A, 2 Pole, 480Y/277V AC, C Trip, UL1077 | Altech Corp. | $34.66 | |
| 2C40UR Supplementary Protector 40A, 2 Pole, 480Y/277V AC, C Trip, UL1077 | Altech Corp. | $36.74 | |
| 2C63UR Supplementary Protector 63A, 2 Pole, 480Y/277V AC, C Trip | Altech Corp. | $36.74 | |
| 2D05UR Supplementary Protector 0.5A, 2 Pole, 480Y/277V AC, D Trip, UL1077 | Altech Corp. | $34.66 | |
| 2D4UR Supplementary Protector 4A, 2 Pole, 480Y/277V AC, D Trip, UL1077 | Altech Corp. | $34.66 | |
| 2D32UR Supplementary Protector 32A, 2 Pole, 480Y/277V AC, D Trip, UL1077 | Altech Corp. | $34.66 | |