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Tender text "Overvoltage protection for MSR signals "

DKU with three-stageovervoltage protection

The three-stage overvoltage protection terminals are fitted with gas discharge tubes, varistors, suppression diodes (TAZ) and decoupling inductors. The gas discharge tubes divert high currents reliably. Varistors and suppression diodes take up the residual voltages. The rated current is up to 300 mA for models DK4U and DK5U and up to 1 A for model DK6U.

The DKU series consists of (6mm wide, DK4U (12mm wide), DK5U (6mm wide and DK6U (8mm wide).

The DKU and DK5U are available for mounting rail TS32 or TS35. The DK5U and DK6U have a combined foot.

Applications include current loops 0(4) to 20mA and 0 to 10 V signals

Technical data

Rated voltage: 24V

Resistance per path : 3 ohms at 0.3A

Protection level on output side, symmetric

For 1 kV/µs pulse at input, typical: 45V

Ordering data:

Make: Weidmüller

Type : DKU DK5 24Vdc 0.3A

Order No. 8238340000

Application: binary signals (24V switching signals)

Technical data

Rated voltage: 24V

Resistance per path : 3 ohms at 0.3A

Protection level on output side, symmetric

For 1 kV/µs pulse at input, typical: 45V

Ordering data:

Suitable for 1 switching signal

Make: Weidmüller

Type : DKU 32 24Vdc 0.3A Order No. 8015800000

Type : DKU 35 24Vdc 0.3A Order No. 8015810000

Application: binary signals (48V switching signals)

Technical data

Rated voltage: 48V

Resistance per path : 3 ohms at 0.3A

Protection level on output side, symmetric

For 1 kV/µs pulse at input, typical: 82V

Ordering data:

Make: Weidmüller

Type : DKU 32 48Vuc 0.3A Order No. 8019280000

Type : DKU 35 48Vuc 0.3A Order No. 8019290000

Application: binary signals (115V switching signals)

Technical data

Rated voltage: 115V

Resistance per path : 3 ohms at 0.3A

Protection level on output side, symmetric

For 1 kV/µs pulse at input, typical: 180V

Ordering data:

Make: Weidmüller

Type : DKU 32 115Vuc 0.3A Order No. 8019300000

Type : DKU 35 115Vuc 0.3A Order No. 8019310000

Application: binary signals (230V switching signals)

Technical data

Rated voltage: 230V

Resistance per path : 3 ohms at 0.3A

Protection level on output side, symmetric

For 1 kV/µs pulse at input, typical: 400V

Ordering data:

Make: Weidmüller

Type : DKU 32 230Vuc 0.3A Order No. 8019320000

Type : DKU 35 230Vuc 0.3A Order No. 8019330000

DKU DK4with individual components

Overvoltage protection in slim terminal housing (12mm) with screw terminal in sizes 0.5 to 1.5mm². Signals are protected using individual components such as gas discharge tubes, varistors or suppression diodes.

Application: protective circuitsusing varistors

Technical data

Rated voltage: 24V

Resistance per path: 0.2 ohms

Protection level on output side, symmetric

For 1 kV/µs pulse at input, typical: 45V

Ordering data:

Make: Weidmüller

Type : DK4U TS35 S14k30 Order No. 9401450000

Type : DK4U TS35 S20k30 Order No. 9401650000

Application: protective circuitsusing varistors

Technical data

Rated voltage: 60V

Resistance per path: 0.2 ohms

Protection level on output side, symmetric

For 1 kV/µs pulse at input, typical: 700V

Ordering data:

Make: Weidmüller

Type : DK4U TS35 gas discharge tube 90V Order No. 9400500000

Application: protective circuitsusing suppression diodes

Technical data

Rated voltage: 24V

Resistance per path: 0.2 ohms

Protection level on output side, symmetric

For 1 kV/µs pulse at input, typical: 55V

Ordering data:

Make: Weidmüller

Type : DK4U TS35 TAZ 33V order No. 8016960000