Acti 9 Schneider Fuse Holder

This Acti9 Schneider Fuse Holder is a low voltage fuse-disconnector. It is used for tertiary and industrial applications requiring a high breaking capacity. It has 1P pole, up to 25A rated current, and gG or aM fuse curve with a fuse cartridge type of 10.3mm x 38mm. it can be mounted on DIN rail for modular installation. The general purpose fuse (gG fuse) provides overload and short-circuit protection. The aM fuse for motor application provides short-circuit protection (protection of loads with a high peak current). it has an IP20 degree of protection on its terminals, becoming IP40 once in modular enclosure. A clip-on marker is visible on front face or on downstream terminal to identify fuse presence. An optional 230V neon indicator light indicates fuse blowing (off in normal operation and lit red after fuse blowing). The device is provided with a captive fuse-carrier and an additional housing for a spare fuse. Its toggle can also be padlocked.

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  • Protection: The fuse holder is made of high-quality materials, which can effectively protect the circuit and extend the service life of the fuse.
  • Use in many places: Cnc low voltage fuse holder can be used in factory, warehouse, factory and other places.
  • Simple to install: The fuse holder is easy to install, no complicated tools are required, and it can be installed in a few minutes.


  • Power systems: Protect motors, transformers and other electrical equipment in power systems from overload and short-circuit damage
  • Used to protect circuits, electrical components and motors in industrial control systems to prevent equipment damage caused by current overload or short circuit
  • Used to prevent overloading of electrical circuits in buildings and real estate projects, protecting wires, sockets and other electrical equipment
  • Used in automobiles, trains, boats and other vehicles to protect circuits and electronic equipment from damage caused by current overload
  • Used in household appliances, such as air conditioners, refrigerators, washing machines, etc., to prevent electrical equipment from being overloaded or short-circuited to cause fire or equipment damage


Range Acti9
Product name Acti9 STI
Product or component type Fuse-disconnector
device short name STI
Poles description 1P
[In] rated current 2 A
4 A
6 A
10 A
16 A
20 A
25 A
Fuse curve AM
Fuse size 10.3 x 38 mm
[Ue] rated operational voltage 500 V AC
[Ui] rated insulation voltage 500 V AC 50/60 Hz
Mounting mode Clip-on
Mounting support DIN rail
9 mm pitches 2
Height 81 mm
Width 18 mm
Depth 75 mm
Colour White
Connections – terminals Screw clamp terminals1 cable(s) 0.75…10 mm² rigid
Screw clamp terminals1 cable(s) 0.5…6 mm² flexible
Screw clamp terminals2 cable(s) 0.75…4 mm² rigid
Screw clamp terminals2 cable(s) 0.5…6 mm² flexible
Wire stripping length 12 mm
Tightening torque 2 N.m
Standards IEC 60269-1/2
IEC EN 60947-3
IP degree of protection IP20
Pollution degree 3
Ambient air temperature for operation -20…60 °C
Ambient air temperature for storage -40…80 °C