480:347:277-460VA-IC 原力达本季新款原装进口《Thomas Research Products步降自耦变压器 》
| 480:347:277-125VA-IC | Thomas Research Products | XFRMR 347/277V 125VA STEP-DOWN | 125VA | 347/480VAC 至 277VAC |
| 480:347:277:220-245VA-IC | Thomas Research Products | 347/277:220V 245VA STEP-DOWN | 245VA | 347/480VAC 至 277VAC |
| 480:347:277-460VA-IC | Thomas Research Products | XFRMR 347/277V 460VA STEP-DOWN | 460VA | 347/480VAC 至 277VAC |
| 120/277-275VA-IC | Thomas Research Products | TRANSFRMR 120-277V/275VA STEP-UP | 275VA | 120VAC 至 277VAC |
| 120/268-277-500VA-IC | Thomas Research Products | TRANSFRMR 120-277V/500VA STEP-UP | 500VA | 120VAC 至 277VAC |