西安锦宏电子有限公司 联系人 余经理 电话 13519124299 QQ 22358940
PRNT4型过载熔断器与XPNT4型后背限流熔断器可参考下表进行选配
变压器容量（KVA） | 12KV电力系统 | 24KV电力系统 | 40.5KV电力系统 |
过载熔断器 | 后备限流熔断器 | 过载熔断器 | 后备限流熔断器 | 过载熔断器 | 后备限流熔断器 |
100 | PRNT4-15.5/10 | XRNT4-15.5/20 | PRNT4-24/6.3 | XRNT4-24/16 | PRNT4-40.5/5 | XRNT4-40.5/10 |
200 | PRNT4-15.5/16 | XRNT4-15.5/31.5 | PRNT4-24/10 | XRNT4-24/20 | PRNT4-40.5/8 | XRNT4-40.5/16 |
315 | PRNT4-15.5/25 | XRNT4-15.5/40 | PRNT4-24/16 | XRNT4-24/32 | PRNT4-40.5/10 | XRNT4-40.5/20 |
400 | PRNT4-15.5/32 | XRNT4-15.5/50 | PRNT4-24/20 | XRNT4-24/40 | PRNT4-40.5/16 | XRNT4-40.5/31.5 |
500 | PRNT4-15.5/40 | XRNT4-15.5/63 | PRNT4-24/25 | XRNT4-24/50 | PRNT4-40.5/20 | XRNT4-40.5/40 |
630 | PRNT4-15.5/50 | XRNT4-15.5/80 | PRNT4-24/31.5 | XRNT4-24/63 | PRNT4-40.5/25 | XRNT4-40.5/50 |
800 | PRNT4-15.5/65 | XRNT4-15.5/100 | PRNT4-24/40 | XRNT4-24/80 | PRNT4-40.5/25 | XRNT4-40.5/50 |
1000 | PRNT4-15.5/80 | XRNT4-15.5/125 | PRNT4-24/50 | XRNT4-24/100 | PRNT4-40.5/31.5 | XRNT4-40.5/63 |
1250 | PRNT4-15.5/100 | XRNT4-15.5/150 | PRNT4-24/65 | XRNT4-24/125 | PRNT4-40.5/31.5 | XRNT4-40.5/63 |
1600 | PRNT4-15.5/140 | XRNT4-15.5/175 | PRNT4-24/80 | XRNT4-24/150 | PRNT4-40.5/40 | XRNT4-40.5/80 |
2000 | | XRNT4-15.5/200 | PRNT4-24/100 | XRNT4-24/200 | PRNT4-40.5/50 | XRNT4-40.5/125 |
2250 | | | PRNT4-24/125 | XRNT4-24/250 | PRNT4-40.5/65 | XRNT4-40.5/150 |
2500 | | | PRNT4-24/140 | XRNT4-24/300 | PRNT4-40.5/80 | XRNT4-40.5/175 |
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三 电力变压器保护用高压限流熔断器
本产品适用于户内交流50HZ，额定电压7.2KV-40.5KV电力系统，作为变压器及其他电力设备过载或短路等的保护元件，并可与其他保护电器（负荷开关，真空接触器）配合使用。盖类型熔断器在规定的使用条件下，能可靠地分断最小开断电流为2.5-5陪熔断件额定电流至额定开断电流50KA之间的任何故障电流。
国内型号 | 国外型号 | 额定电压 | 熔体电流A | 外形尺寸￠D*L | 开断电流 |
XRNT1-7.2 | SDLDJ | 7.2 | 3.15 4.5 6.3 10 16 20 25 31.5 40 50 63 | ∮51*292 | 50KA |
SDLDJ | 7.2 | | ∮76*292 |
| 7.2 | | ∮88*292 |
XRNT1-7.2带弹簧撞击器母线式 | | 7.2 | 315 | ∮125*292 | 50KA |
| 7.2 | 355 400 500 560 | ∮125*442 |
XRNT1-12 | SDLDJ | 12 | 2 3.15 6.3 10 16 20 25 31.5 40 50 | ∮51*292 | 50KA |
SFLDJ | 12 | 50 63 71 80 | ∮66*292 |
SKLDJ | 12 | 100 125 | ∮76*292 |
| 12 | 160 200 | ∮88*292 |
| 12 | 224 250 315 | ∮88*442 |
| 12 | 315 355 | ∮125*442 |
XRNT1-24 | SDMDJ | 24 | 6.3 10 16 20 25 31.5 | ∮51*442 | 50KA |
SFMDJ | 24 | 40 50 63 71 80 | ∮76*442 |
SKMDJ | 24 | 100 125 | ∮88*442 | 40KA |
| 24 | 160 200 | ∮88*537 | 31.5KA |
XRNT1-40.5 | | 40.5 | 2 3.15 6.3 | ∮45*465 | 31.5kA |
| 40.5 | 2 3.15 6.3 4 5 10 16 | ∮51*537 |
| 40.5 | 20 25 31.5 40 | ∮76*537 |
| 40.5 | 20 25 31.5 40 | ∮88*442 |
| 40.5 | 45 50 56 63 | ∮88*537 |
| 40.5 | 71 80 100 | ∮88*650 |
Xrnt1-40.5带弹簧撞击器母线式插入式 | | 40.5 | 80 100 125 160 | ∮125*567 | 31.5KA |
| 40.5 | 200 | ∮125*650 |
