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RDC104-4

Product catalog summary

Intended Use
The RDC104-4 is a residual current monitoring module designed for AC charging systems in electric vehicles, specifically for Mode 3 charging stations as per IEC 62955. It must be integrated into the manufacturer's PCB and is not intended for end users.

Function
The module uses a measuring current transformer to evaluate AC and DC residual currents. It signals limit value overruns through outputs Switch1 and Switch2, ensuring compliance with IEC 62955 disconnection conditions. Regular testing before each charging process is required to maintain accuracy.

Standards and Patents
The module complies with IEC 62955 and is protected by several patents, including EP 2 571 128 and US 9,397,494.

Device Features
- Four outputs: Switch1, Switch2, Error, PWM
- Measuring range: ±300 mA
- Resolution: < 0.2 mA
- Rated current: up to 32 A (single-phase) or 3 x 32 A RMS (three-phase)
- High insensitivity to external interferences
- Can replace a type B RCD when combined with a type A RCD

Technical Data
- Rated operational voltage: 230/400 V
- Rated current: 32 A
- Nominal supply voltage: DC 5 V
- Residual current measuring range: 0…2000 Hz
- Operating temperature: –30…80 °C
- Degree of protection: IP00

Inputs/Outputs
- Test input activated by GND
- Error output indicates system faults
- Switch1 and Switch2 signal residual current status
- PWM output for pulse width modulation

Connection and Installation
- Connection type: PCB plug-in connector
- Maximum connection length: 100 mm
- Recommended soldering process: selective soldering

Ordering Information
- RDC104-4: Art. No. B94042483
- CTBC17P-03 Measuring current transformer: Art. No. B98080070
- Various connection cables available with different lengths.

Catalog excerpts

DC sensitive residual current monitoring module for electric vehicle charging systems

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Device features • Four outputs (Switchl, Switch2, Error, PWM) • Residual current resolution < 0.2 mA • Patented measurement technology • Rated current up to 32 A (singlephase) or 3 x 32 A RMS (three-phase) • Fault output (integrated self monitoring and test functions) • High insensitivity to external interferences • Available variants for application according to IEC 62955 • Wide range of use even in severe environments (e.g. in the event of external fields) • In applications according to IEC 62955, the device can replace a type B RCD when combined with a type A RCD and a suitable switching device...

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* Optional capacities for EMC optimisation Side view; Front view Recommended drilling diameter: 0 1,1mm Tolerances dimensions

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Connection socket measuring current transformer • ••••• M1-M3= Measurement time point t1 = typ. 270 ms (start up delay to drive outputs) After starting the test, the charging system must ensure that the outputs are set correctly at the measurement time points M...: M1: Switch2 = HIGH M2: Switchl = HIGH M3: Switch2 / Switchl = LOW £ The offset measurement only takes place when, after the test, both outputs are LOW (Mi, M2). If the outputs are not set correctly at the measuring times M..., the RDC104-4 must be regarded as defective.

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Technical data Connection type Arrangement of connections Modular dimensions Contact surface Pin length Main circuit (current paths trough CT) Rated operational voltage Ue 230/400 V Rated current In single-phase: 32 A (80 A) Insulation coordination according to IEC 60664-1/IEC 60664-3 Control circuit IC2 (a.. .f, Test, Error, Switch2, Switchl, Vcc, GND, PWM) Rated impulse voltage: Rated insulation voltage UI: Protective separation (reinforced insulation) between: The data are valid from the main circuit to the control circuit. Power supply Nominal supply voltage Vcc DC 5 V Tolerance of the supply...

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Ordering information RBENDERBender GmbH & Co. KG Londorfer StraGe 65 35305 Grunberg Germany © Bender GmbH & Co. KG, Germany Subject to change! The specified standards take into account the edition valid until 08.2023 unless otherwise indicated.

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RDC104-4

RDC104-4

Catalog excerpts

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