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Core balance transformers – type A

Dedicated to RESYS and DIRIS A80

 CORE BALANCE TRANSFORMER (WR) CORE BALANCE TRANSFORMER (WS)  CORE BALANCE TRANSFORMER
CORE BALANCE TRANSFORMER (WR) CORE BALANCE TRANSFORMER (WS) CORE BALANCE TRANSFORMER (ΔIC)
Function
  • The installation of protection or signalling resources such as earth leakage protection relays involves the use of core balance transformers.
  • Active conductors pass through the aperture of the core balance transformer, providing the differential summation of vector currents which enables the detection of leakage currents.
Advantages
A complete product range
  • All dimensions and types are available for compatibility with any bar and cable configurations or diameters.
A wide range of fixing systems (ΔIC)
  • ΔIC core balance transformers can be mounted on DIN-rail, on back-plate or directly on the cable. These products can be adapted into confined spaces with high integration constraints and provide easy
    and rapid cabling.
A patented cable locator (ΔIC)
  • The SOCOMEC cable locator is a patented innovation. The cable is perfectly centralised in the core balance transformer to ensure accurate measurement and enhanced immunity to network interferences. It also enables direct mounting of the core balance transformer onto the cable.
Implementation
Implementation CORE BALANCE TRANSFORMER
  • All of the active conductors must be passed through the detection toroid’s aperture. The protective conductor must pass on the outside of the toroid or pass once for each direction. Installation limiting distortions during heavy load switching. Installation of the detection toroids.

 

 Characteristics

Core balance transformers – type A
Electrical charcateristics ΔIC
Insulation coordination according to IEC 60664-1(1)
Insulation voltage 800 VAC
Rated impulse voltage 8 kV
Dielectric quality 6 kV
Degree of pollution 3
Winding ratio 600 / 1
Rated primary current 10 A
Nominal power 20 mVA
Max. accuracy class 3
Operating temperature -40 … +80 °C
Flammability class UL94V-0
Electrical characteristics WR, TFR and WS series
Insulation coordination according to IEC 60664-1(1)
Insulation voltage 690 VAC
Rated impulse voltage 8 kV
Dielectric quality 6 kV
Degree of pollution 3
Winding ratio 600 / 1
Rated primary current 10 A
Nominal power 50 mVA
Max. accuracy class 5
Operating temperature -10 … +55 °C
Flammability class UL94V-0
(1) Serie W-B: please consult us

 

Dimensions

Closed toroids – ΔIC series
dimensions CORE BALANCE TRANSFORMER

 

Dimensions (mm)
Type A B C D E F G Weight (kg)
ΔIC ∅15 53 17.3 27.8 50 26 81 M4 0.10
ΔIC ∅30 92 30 50 85 26 103.5 M4 0.13
ΔIC ∅50 102.5 50 50 90 26 125 M5 0.18
ΔIC ∅80 116 80 75 105 26 142.5 M5 0.22
ΔIC ∅120 163 120 100 150 26 182.5 M6 0.38
ΔIC ∅200 253 200 150 175 x 41.2 51 274 M6 0.88
ΔIC ∅300 370 300 200 250 x 41.5 50 390 M6 1.72
  1. Width.
  2. Diameter.
  3. Distance between fixing centres.
  4. Distance between rear fixing brackets.
  5. Depth.
  6. Height.
  7. Diameter of fixing screws.

 

Rectangular closed toroids – TFR series
rectangular closed toroids - TFR series

 

Dimensions (mm)
Type A B D F G H Weight (kg)
TFR 200 x 500 200 500 140 62 585 285 7.2

 

Split – core toroids – WS series
split - core toroids - WS series

Dimensions (mm)
Type A B C D E Weight (kg)
WS 50 x 80 50 80 78 114 145 0.9
WS 80 x 80 80 80 108 144 145 1.1
WS 80 x 120 80 120 108 144 185 1.4
WS 80 x 160 80 160 108 144 225 2.8

References

Closed toroids type A – ΔIC series

Type Rated operational current In (A) Toroid diameter (mm) Reference
ΔIC ∅15 36 15 4950 6015(1)
ΔIC ∅30 65 30 4950 6030(1)
ΔIC ∅50 85 50 4950 6050(1)
ΔIC ∅80 160 80 4950 6080(1)
ΔIC ∅120 250 120 4950 6120(1)
ΔIC ∅200 400 200 4950 6200(1)
ΔIC ∅300 630 300 4950 6300(1)
(1) Toroids for RESYS relays M40 / P40 and DIRIS A80.

 

Rectangular closed toroids type A – WR and TFR series

Type Toroid diameter (mm) Reference
WR 70 x 175 70 x 175 4795 0717(1)
WR 115 x 305 115 x 305 4795 1130(1)
WR 150 x 350 150 x 350 4795 1535(1)
TFR 200 x 500 200 x 500 4795 2050(1)
(1) Toroids for RESYS relays M40 / P40 and DIRIS A80.

 

Split-core toroids type A – WS series

Type Toroid diameter (mm) Reference
WR 50 x 80 50 x 80 4795 0508(1)
WR 80 x 80 80 x 80 4795 0808(1)
WR 80 x 120 80 x 120 4795 0812(1)
WR 80 x 160 80 x 160 4795 0816(1)
(1) Toroids for RESYS relays M40 / P40 and DIRIS A80.

 

Accessories for ΔIC toroids

Cable locator

  • Enables the cables to be centred in the toroid’s aperture.
  • Use of this accessory allows the core balance transformer to be directly mounted onto the cables.
Cable locator
Description of accessories Reference
Cable locator, Ø30 mm 4950 0011
Cable locator, Ø50 mm 4950 0012
Cable locator, Ø80 mm 4950 0013
Cable locator, Ø120 mm 4950 0014

 

Mounting bracket

Mounting bracket
Description of accessories Reference
Mounting bracket, Ø30 mm 4950 0001
Mounting bracket, Ø50 mm 4950 0002
Mounting bracket, Ø80 mm 4950 0003
Mounting bracket, Ø120 mm 4950 0004
Mounting bracket, Ø200 mm 4950 0005
Mounting bracket, Ø300 mm 4950 0006

 

Detachable screw terminal

Detachable screw terminal
Description of accessories Reference
Detachable screw terminal 4950 0041

 

Sealable protection cover

Sealable protection cover
Description of accessories Reference
Sealable protection cover 4950 0041

 

DIN-rail clip

For DIN-rail mouting SOCOMEC core balance transformers
DIN-rail clip
Description of accessories Reference
DIN-rail clip 4950 0031

 

Detachable push-in terminal

Detachable push-in terminal
Description of accessories Reference
Detachable push-in terminal 4950 0040