
Control, isolating and safty transformers STI, STZ, DTZ
used to produce protected extra-low voltages.
All transformers are designed and tested according to the requirements of the IEC/EN 61558. This means that, depending on the specific type, they can be used in accordance with international installation standard IEC/EN 60204.
- Short-circuit current reduction in the event of a fault
- Accommodates the use of ungrounded auxiliary circuits
- Reliable, electrical isolation
- High level of protection for challenging applications such as wet grinders and air movers used on concrete
- Degree of protection IP00
- Tested and build to UL 5085-2 and CSA 22.2 No. 66
Typical applications
- Control voltage circuits
- Functional low voltage
- Safety low voltage
- Protective separation
Basic equipment
- Seperate windings
- Insulation class B
- Ambient temperature -25 up to 40°C
- Connection terminal < 63A
- Frequency 50/60 Hz
- +/-5% tapping on the primary side
Transformers with rated output voltages of 12 V to 42 V can be used as safety isolating transformers in accordance with IEC 61 558.
Designed and tested according
- IEC/EN 61558-2-2 / 2-4 / 2-6
- VDE 0570-2-2 / 2-4 / 2-6
- For use according to IEC/EN 60204-1
- Rated input voltage 230V +/-5%, 400V +/-5%
- Rated output voltage 24 und 230V
- Preferred voltage 400/230 V, 400/24 V, 230/230 V, 230/24 V
STZ
Typical applications
- Control circuits
- Protective separation
- PELV circuit (Safety extra-low voltage)
- FELV circuits (functional extra-low-voltage
Basic equipment
- Seperate windings
- Insulation class F
- Ambient temperature -25 up to 40°C
- Connection terminal < 115A
- Frequency 50/60 Hz
- +/-5% tapping on the primary side
Designed and tested according
- IEC/EN 61558-2-2 / 2-4 / 2-6
- VDE 0570-2-2 / 2-4 / 2-6
For use according to IEC/EN 60204-1
Rated input voltage 50 – 950V +/-5%
Rated output voltage 12 – 1000V
Ordering example STZ0,06(*/*)
1.* = Rated input voltage
2.* = Rated output voltage
Say you wanted model STZ0,06 with a rated input voltage of 230 V and
a rated output voltage of 12 V. In this case, you would use part no. STZ0,06(230/12)
DTZ
Typical applications
- Control circuits
- Protective separation
- PELV circuit (Safety extra-low voltage)
- FELV circuits (functional extra-low-voltage)
Basic equipment
- Seperate windings
- Insulation class B / F from 8 kVA
- Ambient temperature -25 up to 40°C
- Connection terminal < 115A
- Frequency 50/60 Hz
- +/-5% tapping on the primary side
Transformers with rated output voltages of < 50 V can be used as safety isolating transformers in accordance with IEC 61 558.
Designed and tested according
- IEC/EN 61558-2-2 / 2-4 / 2-6
- VDE 0570-2-2 / 2-4 / 2-6
For use according to IEC/EN 60204-1
Rated input voltage 50 – 950V +/-5%
Rated output voltage 18,5 – 1000V
Ordering example DTZ0,1(*/*)*
1.* = Rated input voltage
2.* = Rated output voltage
3.* = Transformer connection configuration
Say you wanted model DTZ0,1 with a rated input voltage of 200 V, a rated output voltage of 18.5 V, and a DY(n)5 configuration. In this case, you would use
part no. DTZ0,1(200/18,5)DY(N)5
