Isolator switch 125A SV 3125 002423317

Insulation disconnector – reliable protection for your installation

This three-pole SV 3125 disconnector with a rated current of 125A is a key element of every electrical installation, both in residential and industrial buildings. It serves as a main switch, allowing for safe disconnection of the circuit for maintenance work or in emergency situations. Its solid construction and high-quality workmanship guarantee long-lasting and trouble-free operation.

Functionality and application

This disconnector is primarily used as a main switch in switchboards, as well as an individual switch in electrical installations. It does not have built-in overcurrent protection, so its function is solely to isolate the circuit on the supply side. The ability to seal the lever in the ON and OFF positions provides additional safety and prevents accidental switching on or off of the device. This allows the installer to be sure that the circuit will remain isolated during service work.

Construction and mounting

The SV 3125 disconnector is characterized by mounting on a TH35 rail, which facilitates its installation and replacement. It has frame terminals for connecting wires with a cross-section from 2.5 mm² to 50 mm², providing flexibility in choosing the appropriate cables. The IP20 protection degree protects against touching live parts, but does not provide protection against the effects of weather conditions – therefore, the device is intended for indoor installation. The red lever makes it easy to visually identify the status of the disconnector. Additionally, the possibility of connecting auxiliary contacts (PS ETIMAT 10) and an overcurrent release (DA ETIMAT 10) increases the functionality of the device and allows it to be adapted to the specific needs of the installation.

• Rated current of 125A ensures safe operation for circuits with high power consumption.
• Rated voltage of 400V AC is a standard in most electrical installations.
• Rated conditional short-circuit current of 4kA guarantees resistance to the effects of short circuits in the installation.
• Three-pole design makes the disconnector ideal for three-phase power systems.
• Lever as an actuator provides intuitive operation and quick circuit switching.
• Frame terminals allow for easy and secure connection of wires with different cross-sections.
• The ability to seal increases safety and prevents accidental start-up of the device during service work.
• Mounting on a TH35 rail ensures quick and easy installation in the switchboard.