| 2DU50R Supplementary Protector 50A, 2 Pole, 277V AC, D Trip, UL1077 | Altech Corp. | | |
| 2DU63R Supplementary Protector 63A, 2 Pole, 277V AC, D Trip, UL1077 | Altech Corp. | | |
| 1CU05R Supplementary Protector 0.5A, 1 Pole, 277V AC, C Trip, UL1077 | Altech Corp. | | |
| FAZ-S4/2 FAZ-S4/2 Eaton - UL 1077 Industrial Miniature Circuit Breaker - Supplementary Protector | Eaton | | |
| FAZ-S1 Eaton FAZ-S1 Miniature Circuit Breakers (MCBs) FAZ 1P 1A 415V 50/60Hz 1Ph | Eaton | | |
| ST203M-B1.6 Supplementary Curcuit Protector, 3 pole, 1.6 Amp, 277 VAC, B Curve, UL 1077 | ABB Control | | |
| ST203M-B30NA Supplementary Curcuit Protector, 3 pole, 30.0 Amp, 277 VAC, B Curve, UL 1077, w/Neutral | ABB Control | | |
| ST204M-C1.6 Supplementary Curcuit Protector, 4 pole, 1.6 Amp, 277 VAC, C Curve, UL 1077 | ABB Control | | |
| ST204M-C3 Supplementary Curcuit Protector, 4 pole, 3.0 Amp, 277 VAC, C Curve, UL 1077 | ABB Control | | |
| ST203M-K1.6NA Supplementary Curcuit Protector, 3 pole, 1.6 Amp, 277 VAC, K Curve, UL 1077, w/Neutral | ABB Control | | |