Products
Disconnecting switch
- View as
3 Pole Fuse Switch Disconnector 100A 690V
The ZHENGRONG HR17-100 3-pole fuse switch disconnector delivers reliable load switching, isolation and short-circuit protection for three-phase low-voltage circuits. Rated 100A / 690V AC at 50/60Hz and compliant with GB/T 14048.3, it features a flame-retardant grey housing, a translucent blue inspection window and a hinged flip cover for fast, tool-free fuse replacement. Certified to ISO9000, CCC and CE, it is an ideal power disconnection and protection solution for distribution boards, motor control centers and industrial equipment.
3 Pole Fuse Switch Disconnector 690V Knife Type
The ZHENGRONG HR6 3-pole knife-type fuse switch disconnector provides reliable isolation and short-circuit protection for three-phase low-voltage circuits. Rated 660V / 50Hz, this classic open-type switch-disconnector combines a manually operated knife switch with fuse protection in a compact, flame-retardant housing with a translucent blue cover for quick contact inspection. Certified to ISO9000, CCC and CE, it is a trusted choice for industrial and commercial distribution systems.
3 Pole Fuse Switch Disconnector DIN Rail 690V
The ZHENGRONG 3-pole fuse switch disconnector combines overload and short-circuit protection with visible isolation in a single unit for three-phase low-voltage circuits. Rated 690V / 50Hz and compliant with GB/T 14048.3, it features a flame-retardant engineering plastic housing and a translucent blue inspection window for quick fuse-status checks. Certified to ISO9000, CCC and CE, it is a reliable protection and maintenance-isolation solution for distribution boards, motor control centers and industrial power systems.
DIN Rail Fuse Holder NH00 160A Knife Switch Fuse Base
ZHENGRONG NH00 knife switch fuse base (fuse switch disconnector), rated 160A / 500V–690V AC, provides reliable overload and short-circuit protection for low-voltage power distribution. Its flame-retardant grey housing, translucent blue inspection window and tool-free 35mm DIN rail mounting allow fast, safe fuse replacement with visible disconnection. Certified to ISO9000, CCC and CE, it is an ideal protection and isolation solution for industrial control cabinets, distribution boards and building electrical systems.
Only fuse support and replacement are required → Select NH00 fuse base (to be used in conjunction with higher-level switches).
Branch/small and medium current (100-160A) → HR17-100/HR17-160, supporting rail installation, balancing cost and flexibility.
Medium current main/branch (250A) → HR17-250, with three arched windows for easy inspection.
High current main circuit (400-630A) → HR17-400/HR17-630, used for the main switch of power cabinets and switchgear.
Prefer classic blade structure and intuitive maintenance → HR6 series.
Export market → Prioritize labeling models with 50/60Hz and IEC 60947-3 versions, and verify the actual parameters on the nameplate.
