概述/Specification

FZN25、FZRN25型真空负荷开关和组合电器，适用三相交流50Hz环网或终端供电和工业用电设备中，作负荷控制和短路保护之用，负荷开关分合负荷、闭环电流、空载变压器和电缆充电电流。组合电器可以开断直至额定短路电流的任何电流。采用直动式。隔离断口和真空弧室联动。具有手动和电动功能。

FZN25、FZRN25独特的传动结构设计，灭弧室仅在关合和开断的瞬间承受高压，故体积小重量轻。FZN25、FZRN25可实现隔离断口和

灭弧室断口的一次性操作。

FN25、FZRN25在静触与动触头导电筒之间有与接地开关互为联动的接地活门，既保证了安全又方便了检修。

FZN25,FZRN25 type vacuum load switch and composite apparatus,suitable for three-phase AC 50Hz ring network or terminal power supply andindustrial electrical equipment.for load control and short circuit protection use.load switch open and close the closed loop current,no-load transformer andcable charging current,composite apparatus can break any current till rated short circuit current.Adopt the straight move or isolating fracture and vacuuminterrupter linkage.With function of manual and electric operation.

FZN25,FZRN25 special transmission structure design.arc extinguish chamber only withstand voltage in the moment of closing and breaking,small size.

Light weight.

FZN25,FZRN25 can realize isolation fracture and arc extinguish chamber fracture disposable operating.

FZN25,FZRN25 has a grounding switch mutual linkage grounding valve between the static contact and mova conductive cylinder,ensures safety andconvenient maintenance.

正常使用条件/Ambient condition

1、周围空气温度上限：+40℃,下限：-25℃。

2、海拔高度不1000m。

3、相对湿度日平均值不大于95%,月平均值不大于90%。

4、地震烈度不超过8度。

5、无火灾、爆炸危险，化学腐蚀及剧烈振动的场所。

6、污秽等级：lla

1.The ambient temperature:-25℃-+40℃,alpine region,≥-40℃。

2.The altitude:≤1000M。

3.Relative humidity:daily average value is not greater than 95%,monthlyaverage is not greater than 90%。

4.Earthquake intensity:≤8 degree。

5.The surrounding air is not corrosive and flammable gas,steam and othersignificant pollution。

6.Contamination grade:Il class。

产品型号含义/Model implication

主要技术参数/Technical specification

外形安装尺寸/0verall dimension