How do you choose Type A or Type B residual current monitoring?
The guide illustrates this model's “RCM · Monitoring / alarm” function with a product example.
Read the technical guideProduct families / Residual current monitoring / LINETRAXX® RCMA420
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BENDER DISTRIBUTOR IN TÜRKİYE · ADEO TEKNİK
Bender LINETRAXX® RCMA420Type B Residual Current Monitoring
Type B device with LC display for monitoring AC, DC and pulsating DC residual currents in TN and TT systems.
TECHNICAL SUMMARY
Features of this model.
AC/DC residual current monitoring
- Main alarm range 10…500 mA; prewarning 50…100% of the main threshold.
- RMS measurement, adjustable hysteresis and delay times.
- LC display, AL1/AL2 LEDs and K1/K2 changeover contacts.
- Continuous transformer connection monitoring, password protection and selectable fault memory.
FROM PRODUCT TO TECHNICAL KNOWLEDGE
All technical guides ↗Related technical guides
Explore the product's function and its system's operating principle through technical explanations.
RCM versus RCD: How does residual current monitoring work?
Learn the difference between residual current measurement/alarm and tripping for protection.
Read the technical guideResidual current monitoring strategy: Where should measurements be taken?
Compare the information provided by measurement points at main distribution, sub-board and final-circuit levels.
Read the technical guideADEO Teknik · Bender distributor in Türkiye
Ask ADEO Teknik Technical product information and supply support for model selection, compatible components and current manufacturer documentation.
MODEL, ORDER AND ACCESSORY INFORMATION
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14 / 14 options
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Model options and technical values
| Model | Alarm range I Δn | Frequency range | Supply voltage U S * | Order code** |
|---|---|---|---|---|
| RCMA420-D-1 | 10…500 mA | 0…2000 Hz | DC 9,6…94 V / / AC 16…72 V, 42…460 Hz | B74043001 / B94043001 |
| RCMA420-D-2 | 10…500 mA | 0…2000 Hz | DC 70…300 V / / AC 70…300 V, 42…460 Hz | B74043002 / B94043002 |
Manufacturer table notes (original language):
* Absolute values **(B7… = push-wire terminal / B9… = screw-type terminal)
Explore compatible accessories
Compatible accessories · 1
| Model | Internal diameter (mm) | Order code |
|---|---|---|
| CTUB101-CTBC20 | ø 20 | B78120010 |
| CTUB101-CTBC20P | ø 20 | B78120020 |
| CTUB101-CTBC35 | ø 35 | B78120012 |
| CTUB101-CTBC35P | ø 35 | B78120022 |
| CTUB101-CTBC60 | ø 60 | B78120014 |
| CTUB101-CTBC60P | ø 60 | B78120024 |
Manufacturer table notes (original language):
Connection cable measuring current transformer – RCMA420-D
Compatible accessories · 2
| Model | Length/m | Order code |
|---|---|---|
| CTX-100 | 1 | B98110080 |
| CTX-250 | 2,5 | B98110081 |
| CTX-500 | 5 | B98110082 |
| CTX-1000 | 10 | B98110083 |
Manufacturer table notes (original language):
Accessories
Compatible accessories · 3
| Model | Order code |
|---|---|
| Mounting clip for screw mounting (one piece per device) | B98060008 |
| Mounting frame XM420 | B990994 |
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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4 / 4 documents
Datasheet
RCMA420
RCMA420_D00059_D_XXEN.pdfTechnical summary source · pp. 1, 2Open document ↗DatasheetXM420 interface options
XM420-interface-option_D00051_D_XXEN.pdfOpen document ↗Operating manualRCMA420
RCMA420_D00059_M_XXEN.pdfOpen document ↗Conformity documentRCMA42x
CEKO_RCMA42x.pdfOpen document ↗No documents match your search. Change the search or document type.
About manufacturer sources
This summary is based on the product descriptions, features and variant information on the specified document pages. Consult the manufacturer document for complete technical values, connection information and ordering options.
Current product and variant information · 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 ↗
APPLICATIONS
Its role in your application.
Measures in converter, battery charger and variable-frequency drive circuits with a suitable CTUB101-CTBC transformer. Allows separate evaluation of prewarning and alarm as residual current rises.
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