BRCS Series

BRCS Series — AC/DC Residual Current Sensors for EV Charging

Built-in AC/DC residual current sensors designed for Mode-2 and Mode-3 EV charging equipment (AC EV Chargers). Detects both smooth DC and AC residual currents, with digital output signals for direct integration into EVSE control circuits.

Product Variants

BRCS products are defined across three dimensions:

1. Form Factor

Following the release of IEC 62955 in 2018, we obtained the world's first TÜV-certified RDC-MD and RDC-PD certificates in 2019. Through the large-scale application of millions of units over the past few years, we have continuously optimized our product line. Our current mainstream product lines are as follows:

Model

BRCS01C

BRCS03C

BRCS03X

BRCS01V

Image

Mounting Type

Cable-mounting / PCB-mounting/ Enclosure-mounting

PCB-mounting (Copper jumper)

PCB-mounting (Horizontal Through hole)

PCB-mounting (Vertical Through hole)

💡 BRCS01C is the only platform offering a 12V supply variant (-12-H1), which is ideal for users who prefer not to process fault signals through an MCU and require indicator lights for easy on-site troubleshooting.

2. Compliance Standard

Every form factor is available in both IEC and UL versions. In other words, IEC and UL versions share the same hardware form factor but have different pin assignments and output logic. Always select the correct compliance version for your target market.

IEC Version

UL Version

Target Market

Europe, Asia, and global IEC markets

North America (UL/CCID20 required)

Fault Signal Output Pin-A

DC-only fault signal (RDC-MD, IEC 62955 DC 6 mA)

IEC 62955 fault signal (RDC-MD) or IEC 62752 (IC-CPD)

Fault Signal Output Pin-B

AC & DC fault signal (RDC-PD / IC-CPD, Type-A 30 mA + DC 6 mA)

UL 2231-2 fault signal (X20, CCID20, AC 20 mA)

Applicable Standards

IEC 62955, IEC 62752, IEC 60947-2-(M)

UL 2231-2 (CCID20) + IEC 62955 / IEC 62752

3. Supply Chain Compatibility:

Thoughtfully designed pinouts and form factors ensure seamless drop-in replacement and supply chain security for EV charger manufacturers.

The BRCS01C-12V version is fully pin-compatible with the Littelfuse RCM14/20 series (formerly Western Automation).
The BRCS03C and BRCS03X series are highly compatible with the BENVAC N4641 series. Although our sensors utilize a 6-pin interface compared to BENVAC's 8-pin design, users can achieve seamless compatibility on the same charging controller hardware through automatic firmware adaptation.

Our Philosophy on Compatibility: Compatibility is fundamentally about delivering value to the customer. Consider DIN-rail mounted circuit breakers: while their internal technologies vary, their standardized external form factor provides immense convenience to users and drives healthy market development. We apply this same standardization philosophy to our sensor designs to simplify integration for our customers.

Our Model

Compatible

N.A