Performance

Benefits of Use

Mounted on 35mm track

Directly installed inside the distribution box or switch box

Available Remote Signal Alarm (VF 230/-FS)

Surge protector with sustainable monitoring of operational status

Screwless terminal block

Easy to install

Y-Type Circuit

For safer surge protection on the phase line, neutral line, and ground line.

Function and Application Fields

OBO FLD surge protectors are overvoltage protection components used for engineering control systems, signal flow loops, transmission line systems, and computer systems.

The surge protectors in the VF series feature a protective circuit with voltage-sensitive resistors that ensure a very low protection level under the limited discharge current of FKA. This circuit includes gas discharge tubes and zinc oxide varistors, monitored by a thermal fuse. In the event of aging or overload of the internal surge protector components, the built-in circuit breaker will immediately disconnect the circuit, and the green status indicator light will turn off. If the protection device is equipped with a remote signal alarm unit (FS) type, it will activate a floating changeover contact.

Installation

The OBO FLD series surge protectors can be directly mounted on a 35mm standard rail using a mounting clip. They can be connected to remote signal indicators via the provided plug-in connectors.

Working Voltage: UN

　　24V（50-60HZ）

Continuous Working Voltage: UC

　　255VN

LPZ Zone

　　2→3

Compliant with DIN VDE 0675/6 (11.89) A1, A2 / IEC 61643-1

D/Class III

Rated Load Current IL

　　20A

Rated Discharge Current In

　　2.5KA

Discharge Current Imax

　　7KA

Voltage Protection Level

　　UP L-N

　　UP L/N-PE

　　≤1.0KV

　　≤1.5KV

Conductor cross-section

　　0.14-2.5mm2

Length of wire stripping

　　6-7mm

Response Time: TA

　　＜25 ns

Color

Materials

Installation

Grey, RAL 7035

Imide 6 | Duroplast

可直接安装于35mm轨道上，符合DIN EN 50 022标准。