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VRCM12-2 RCMU

Product catalog summary

General Introduction:
The document describes the VRCM12-2 Residual Current Monitoring Unit (RCMU) designed for electric vehicle (EV) chargers. It detects type B residual current using the flux-gate principle, ensuring high monitoring precision and low temperature drift. All components comply with the AEC-Q automotive class standard, and the unit meets the IEC62752(E)-1:2016 standard for residual current detection.

Application:
The RCMU is suitable for use in electric vehicle chargers, including IC-CPD, wallboxes, solar inverters, and UPS systems. It offers isolated measurement and panel mounting capabilities.

Main Features:

Resolution ratio of 0.2mA
Outputs a signal when DC 6mA or AC 30mA residual current occurs
Low temperature drift and high monitoring precision
Compliant with multiple standards including IEC 62955 and GBT 18487.1-2015

Product Advantages:

High precision monitoring
Low temperature drift
Use of auto class components

Reference Standards:

IEC62752(E)-1:2016
IEC 62955
NB/T 42077-2016
GBT 18487.1-2015
2002/95/EC

Limit Parameters:
Attention is required to adhere to parameter limits to avoid device damage. Key electrical parameters include a supply voltage (VCC) of 5V, a maximum supply voltage (VDS) of 40V, and a maximum supply current (IC) of 50mA.

Electrical Parameters:

Supply voltage: 4.75V to 5.25V
Consumption current: 30mA
Zero temperature drift: 2mA
PWM frequency: 7.8 to 8.2 kHz
DC tripping current: 4 to 5.6mA
AC tripping current: 20 to 28mA

Tripping Time:
The document provides detailed tripping times for various current levels and frequencies, ensuring quick response to residual currents.

Power On Sequence and Pin Definition:
The document outlines the power-on sequence and provides a detailed pin definition for the RCMU, including test input, power supply, and output signals.

Catalog excerpts

Zhejiang VEKON Technology Co.,Ltd. PROFESSIONAL CIRCUIT BREAKER MANUFACTURER a vi VRCM12-2 RCMU Residual current monitoring unit for EV charger General introdution VRCM12-2 RCMU detects type B residual current, which adopts flux-gate principle, with features of high monitoring precise and low temperature drift. All components inside conform to AEC-Q auto class standard. Its output Trip signal and PWM have the function of monitoring current. Function of residual current detection meet the standard: IEC62752(E)-1:2016. Application: Residual current monitoring for electric vehicle of IC-CPD, wallbox and charger, solar inverter, UPS, etc. Main features Isolated measurement Panel mounted Resolution ratio 0.2mA DC 6mA residual current occurs, signal will be output i AC 30mA residual current occurs, signal will be output Typical application Charger-Model 3 Charger-Model 4 IC-CPD Other residual current monitoring Product advantages Low temperature drift Auto class components inside High monitoring precise flux-gate principle

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