Current transformers for new systems or retrofits

Plug-in current transformer (E)ASK 31.3

Plug-in transformers are suitable for primary rated currents from 75 A to 750 A and for use as measuring transformers of different currents. Can be used for round cables and busbars. Are often permanently installed in electrical systems. For installation, the respective conductor must be disconnected and routed through the current transformer. Approved as EASK for billing measurements.

Variants and tender texts

ASK 31.3 500/5A Item number: 001656

Plug-in current transformer 500A/5A, load 10VA, class 1

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ASK 31.3 600/5A Item number: 001657

Plug-in current transformer 600A/5A, load 10VA, class 1

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ASK31.3 100/5A Item number: 001651

Plug-in current transformer 125A/5A, load 2.5VA, class 1

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ASK31.3 125/5A Item number: 002623

Plug-in current transformer 125A/5A, load 2.5VA, class 1

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ASK 31.3 150/5A Item number: 001655

Plug-in current transformer 150A/5A, load 2.5VA, class 1

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ASK 31.3 200/5A Item number: 001652

Aufsteckstromwandler 200A/5A, Bürde 5,0VA, Klasse 1

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ASK 31.3 300/5A Item number: 001658

Plug-in current transformer 300A/5A, load 5.0VA, class 1

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ASK 31.3 400/5A Item number: 001654

Plug-in current transformer 400A/5A, load 10VA, class 1

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ASK 31.3 250/5A Item number: 001653

Plug-in current transformer 250A/5A, load 5.0VA, class 1

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ASK 31.3 750/5A Item number: 002138

Plug-in current transformer 750A/5A, load 10VA, class 1

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Plug-in current transformer XCTB series

Plug-in current transformers for power quality applications are designed for use in networks subject to harmonics. In conjunction with the UBN PQ network analyzers, they ensure highly accurate transmission up to 20 kHz.

characteristics

• In conjunction with the UBN PQ network analyzers, they ensure highly accurate transmission up to 20 kHz.
• High insulation test voltage up to 6 kV
• Tested lightning surge voltage for 690 V systems according to IEC 61439-1 /-2
• Safe housing with high flame retardancy
• Protection against contamination through optimized housing
• Time-saving and screwless connection technology for solid and flexible conductors
• Shock and shakeproof
• Maintenance free

Technical data

Primary rated current	100 A – 2000 A
Secondary rated current	5 A
Accuracy class	0.2 / 0.25 / 0.5 (default)
Rated power	1,5 – 5,0 VA

Variants and tender texts

XCTB 31.35 600/5A 5VA KL0.5 Item number: 005035

Dimensions H x W x D: 80.9 x 60 x 52 mm
Primary conductor bar: 30 x 10 mm; 25x12mm; 20x20mm
Round conductor: Ø 25.7 mm
Rated primary current: 600 A

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XCTB 31.35 200/5A 5VA KL0.5 Item number: 005030

Dimensions H x W x D: 80.9 x 60 x 52 mm
Primary conductor bar: 30 x 10 mm; 25x12mm; 20x20mm
Round conductor: Ø 25.7 mm
Primary rated current: 200 A

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XCTB 31.35 250/5A 5VA KL0.5 Item number: 005031

Dimensions H x W x D: 80.9 x 60 x 52 mm
Primary conductor bar: 30 x 10 mm; 25x12mm; 20x20mm
Round conductor: Ø 25.7 mm
Primary rated current: 250 A

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XCTB 31.35 400/5A 5VA KL0.5 Item number: 005033

Dimensions H x W x D: 80.9 x 60 x 52 mm
Primary conductor bar: 30 x 10 mm; 25x12mm; 20x20mm
Round conductor: Ø 25.7 mm
Primary rated current: 400 A

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XCTB 31.35 500/5A 5VA KL0.5 Item number: 005034

Dimensions H x W x D: 80.9 x 60 x 52 mm
Primary conductor bar: 30 x 10 mm; 25x12mm; 20x20mm
Round conductor: Ø 25.7 mm
Rated primary current: 500 A

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XCTB 31.35 125/5A 2,5VA KL0.5 Item number: 005028

Dimensions H x W x D: 80.9 x 60 x 52 mm
Primary conductor bar: 30 x 10 mm; 25x12mm; 20x20mm
Round conductor: Ø 25.7 mm
Primary rated current: 125 A

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XCTB 31.35 150/5A 2,5VA KL0.5 Item number: 005029

Dimensions H x W x D: 80.9 x 60 x 52 mm
Primary conductor bar: 30 x 10 mm; 25x12mm; 20x20mm
Round conductor: Ø 25.7 mm
Primary rated current: 150 A

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XCTB 31.35 100/5A 2,5VA KL0.5 Item number: 005027


Dimensions H x W x D: 80.9 x 60 x 52 mm

Primary conductor bar: 30 x 10 mm; 25x12mm; 20x20mm

Round conductor: Ø 25.7 mm

Primary rated current: 100 A

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XCTB 31.35 300/5A 5VA KL0.5 Item number: 005032


Dimensions H x W x D: 80.9 x 60 x 52 mm

Primary conductor bar: 30 x 10 mm; 25x12mm; 20x20mm

Round conductor: Ø 25.7 mm

Primary rated current: 300 A

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XCTB 31.35 750/5A 5VA KL0.5 Item number: 005036


Dimensions H x W x D: 80.9 x 60 x 52 mm
Primary conductor bar: 30 x 10 mm; 25x12mm; 20x20mm
Round conductor: Ø 25.7 mm
Primary rated current: 750 A

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Cable conversion current transformer KBU

Transformer with divisible measuring core for primary rated currents from 100 A to 5000 A. Secondary rated current 5 A or 1 A, in accuracy classes 0.5 and 1. Can be used for round cables and busbars. Transformer with divisible measuring core for primary rated currents from 100 A to 5000 A. Secondary rated current 5 A or 1 A, in accuracy classes 0.5 and 1. Can be used for round cables and busbars.

Variants and tender texts

KBU 23 100/5A Item number: 001713

Cable conversion current transformer 100A/5A, burden 1.25VA,
Class 3, round conductor 20mm, busbar 20×30 mm

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KBU 23 150/5A Item number: 002121

Cable conversion current transformer 150A/5A, burden 1.5VA,
Class 3, round conductor 20mm, busbar 20×30 mm

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KBU 23 200/5A Item number: 002122

Cable conversion current transformer 200A/5A, burden 2.5VA,
Class 3, round conductor 20mm, busbar 20×30 mm

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KBU 23 250/5A Item number: 002123

Cable conversion current transformer 250A/5A, burden 1.5VA,
Class 1, round conductor 20mm, busbar 20×30 mm

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KBU 23 300/5A Item number: 002124

Cable conversion current transformer 300A/5A, burden 3.75VA,
Class 1, round conductor 20mm, busbar 20×30 mm

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KBU 23 400/5A Item number: 002125

Cable conversion current transformer 400A/5A, burden 5VA,
Class 1, round conductor 20mm, busbar 20×30 mm

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Cable conversion current transformer KBR

Variants and tender texts

KBR 32 250/1A Item number: 003287

Kabelumbau-Stromwandler 250A/1A, Bürde 5VA,
Class 3, cable 2.5 m, round conductor 32.5 mm

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KBR 32 200/1A Item number: 003286

Cable conversion current transformer 200A/1A, burden 5VA,
Class 3, cable 2.5 m, round conductor 32.5 mm

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KBR 18 50/1A Item number: 003276

Cable conversion current transformer 50A/1A, burden 1VA,
Class 3, cable 2.5 m, round conductor 18 mm

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KBR 18 75/1A Item number: 003277

Cable conversion current transformer 75A/1A, burden 1VA,
Class 3, cable 2.5 m, round conductor 18 mm

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KBR 18 100/1A Item number: 003278

Cable conversion current transformer 100A/1A, burden 1.25VA,
Class 3, cable 2.5 m, round conductor 18 mm

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KBR 18 125/1A Item number: 003279

Cable conversion current transformer 125A/1A, burden 1.5VA,
Class 3, cable 2.5 m, round conductor 18 mm

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KBR 18 150/1A Item number: 003280

Cable conversion current transformer 150A/1A, burden 2VA,
Class 3, cable 2.5 m, round conductor 18 mm

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KBR 32 100/1A Item number: 003283

Cable conversion current transformer 100A/1A, burden 2.5VA,
Class 3, cable 2.5 m, round conductor 32.5 mm

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KBR 32 125/1A Item number: 003284

Cable conversion current transformer 125A/1A, burden 3VA,
Class 3, cable 2.5 m, round conductor 32.5 mm

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KBR 32 150/1A Item number: 003285

Cable conversion current transformer 125A/1A, burden 3VA,
Class 3, cable 2.5 m, round conductor 32.5 mm

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Flexible Rogowski coil MFC150

Rogowski coils are suitable for use in systems with limited space. They enable subsequent installation without having to cut the conductors. Thanks to the integrated amplifier in our measuring devices, they can measure a current range from mA to kA.

* The flexible MFC150 Rogowski coil can only be ordered as a set, in combination with UBN40 or UBN309.

Differential current transformer DACT series

The DACT plug-in differential current transformers are designed to record small currents. In conjunction with the UBN AM / PQ EW.Fi option, they can be used for differential and residual current monitoring of machines and systems.

characteristics

• Detection of the smallest fault currents
• Safe housing with high flame retardancy
• Tamper protection through sealable covers
• High measurement accuracy up to class 0.2S
• Maintenance free
• Simple and quick assembly

Technical data

Working temperature range	-10° C > T > + 70°C
Rated voltage	800 V
Rated impulse voltage	8 kV
Max. Consumption (per phase)	max. 0,15VA
Pollution level	III
Technical standards	IEC 60664-1 / IEC

Variants and tender texts

DACT60 Item number: 005045

Primary conductor opening: Ø 60 mm
Dimensions L x W x H: 135 x 37 x 117 mm
Terminal connections: spring-loaded terminals, 4-pin; 0.08…2.5 mm²

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DACT120 Item number: 005046

Primary conductor opening: Ø 120 mm
Dimensions L x W x H: 210 x 37 x 210 mm
Terminal connections: spring-loaded terminals, 4-pin; 0.08…2.5 mm²

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DACT20 Item number: 005043

Primary conductor opening: Ø 20 mm
Dimensions L x W x H: 82 x 30 x 63 mm
Terminal connections: spring-loaded terminals, 4-pin; 0.08…2.5 mm²

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DACT35 Item number: 005044

Primary conductor opening: Ø 35 mm
Dimensions L x W x H: 104.52 x 30 x 86.5 mm
Terminal connections: spring-loaded terminals, 4-pin; 0.08…2.5 mm²

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