The glow wire test is used to verify the safety of the terminal blocks in the event of overheating or overloading. The plastic of the terminal block must be flame resistant.

For the test, a terminal block is fixed at right angles to the glow wire. With a temperature of 750° C and a force of 1 N, the glow wire presses in on the terminal block. A tissue paper pad is positioned under the test set-up, which must not be ignited by dropping plastic during and after the test.

The busbar product portfolio includes fork busbar and pin busbar versions with one to four poles. The cross-section and current of the electrical busbars are 10 mm² with 63 A or 16 mm² with 80 A.