Why is the NGR continuously monitored in an HRG system?
Explore the current sensor’s duty within the NGR measuring chain in its system context. This product is not presented as a general RCM conductor arrangement example.
Read the technical guideProduct families / Neutral grounding resistor monitoring · NGR / LINETRAXX® CTUB103
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Bender LINETRAXX® CTUB103NGR Measuring Current Transformer
Type B transformer group converting AC/DC residual and fault currents into measurement signals for NGR monitoring devices.
TECHNICAL SUMMARY
Features and intended use.
NGR Measuring Current Transformer
- Consists of a CTBC core and CTUB103 electronic module.
- 35, 60 and 120 mm core options.
- DC 24 V supply; transformer connection monitoring.
- The reviewed document lists NGRM500 and NGRM700 evaluators.
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ADEO Teknik · Bender distributor in Türkiye
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MODEL, ORDER AND ACCESSORY INFORMATION
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11 / 11 options
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Model options and technical values
| Set | Current transformer diameter | Permitted measurement range | Order code |
|---|---|---|---|
| CTUB103-CTBC35 | 35 mm | 5 A, 10 A | B78120030 |
| CTUB103-CTBC60 | 60 mm | 5 A, 10 A, 25 A | B78120031 |
| CTUB103-CTBC120 | 120 mm | 5 A, 10 A, 25 A | B78120032 |
Explore compatible accessories
Compatible accessories · 1
| Model | Maximum number of connectable current transformers | Order code |
|---|---|---|
| STEP-PS/1 AC/24 DC/0.5 | 2 | B94053110 |
| STEP-PS/1 AC/24 DC/1.75 | 7 | B94053111 |
| STEP-PS/1 AC/24 DC/4.2 | 17 | B94053112 |
Manufacturer table notes (original language):
Replacement parts - Measuring current transformer cores
Compatible accessories · 2
| Model | Current transformer diameter | Order code |
|---|---|---|
| CTBC35 | 35 mm | B98120003 |
| CTBC60 | 60 mm | B98120005 |
| CTBC120 | 120 mm | B98120007 |
Manufacturer table notes (original language):
Replacement parts - Electronic modules
Compatible accessories · 3
| Model | U S | Order code |
|---|---|---|
| CTUB103 | DC 24 V | B78120052 |
Manufacturer table notes (original language):
Required terminals are optionally available.
Accessories
Compatible accessories · 4
| Model description | Order code |
|---|---|
| Snap-on mounting for CTBC35 | B91080112 |
Manufacturer table notes (original language):
(included in scope of delivery)
Based on tables on the manufacturer's current product page. For marked-value footnotes, connection conditions and variant suitability, review Bender product source ↗ and the technical documents together. Listing an order code does not commit to stock availability or delivery time.
BENDER MANUFACTURER DOCUMENTS
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7 / 7 documents
Datasheet
CTUB103
CTUB103_D00410_D_XXEN.pdfTechnical summary source · pp. 1, 2Open document ↗Operating manualCTUB103
CTUB103_D00410_M_XXEN.pdfOpen document ↗Conformity documentCTUB1xx
CEKO_CTUB1xx.pdfOpen document ↗Conformity documentCTxx
CEKO_CTxx.pdfOpen document ↗Conformity documentUKCA - CTUB1xx
UKCA_CTUB1xx.pdfOpen document ↗Conformity documentUKCA - CTxx
UKCA_CTxx.pdfOpen document ↗Other technical documentsTÜV NORD - AGH150x, CTACx, CTBCx, EDS44x, CTUB10x, MRCDB30x and RCMB30x
Z_1436.GR.20210803.144728_en.pdfOpen document ↗No documents match your search. Change the search or document type.
About manufacturer sources
This summary is based on product and application information on the specified document pages. Consult the relevant document for complete technical values, connection conditions and ordering options.
Current product information and options · Bender ↗
Data sheets, operating manuals and related manufacturer documents. File names identify the model or accessory; documents retain their original language.
ADEO Teknik · Bender's distributor in Türkiye. Current Bender product source ↗
APPLICATION
Select the right component.
For resistance-grounded systems, HRG/LRG classification is evaluated together with voltage, NGR resistance and current measurement conditions.
IN THE SAME PRODUCT FAMILY
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All products in the neutral grounding resistor monitoring · NGR family ↗