Porduct Overview

EKRCMU-1 is a residual current sensor with a highly integrated modular design, combining Type A RCD functionality with 6mA DC leakage detection, specially developed for charging pile leakage detection, Compliant with IEC 62955.

Its main function is to respond quickly when the charging pile detects residual current during operation, effectively preventing potential safety hazards caused by leakage, including but not limited to fire or electric shock accidents, thereby ensuring the safety and stability of the entire charging process, and is widely used in charging piles that meet mode 3 charging.

Key Features：

Dual Protection: Integrates Type A RCD functionality with 6mA DC leakage detection in a single unit.
IEC 62955 Compliance: Meets the requirements of IEC 62955, the international standard for RCMUs in EV charging stations.
Enhanced DC Protection: Detects DC leakage currents as low as 6mA, crucial for modern EV charging safety.
Connection Types: Suitable for both three-phase and single-phase connections.
Fast Response Time: Interrupting Time according to IEC62752: 5.3.11 Table 2 and 3
Self-Monitoring: Continuous self-test functionality ensures reliable operation.
Compact Design: Engineered to be compact for easy integration into EV charging stations.

Applications:

Mode 2 or Mode 3 AC charging stations
Combined AC/DC charging points
Home and workplace EV chargers
Public charging infrastructure

Technical parameters

Technical Data

Operating voltage	4.8~5.2V DC
Working current	10mA (typ.)
Power consumption	≤ 110mW
Voltage input/output, low level	0 ~ 0.6V DC
Voltage input/output, high level	4.2 ~ 5V DC
Leakage protection type	Type A + 6mA DC
Scope of application	Max. adaptable to 22kW single-phase or three-phase
Connection method	Pin strip 5-pos.
Ambient air temperature	-40℃~+85℃
Storage temperature	-40°C~+105°C
Humidity	≤ 95%

Leakage parameters

Parameter	Symbol	Condition	Min.	Typ.	Max.	Remark
Primary rated current (A)	I_P	/	/	32	40
Measurement range (peak value) (mA)	I_∆N,max	/	-300	-	300	The negative sign represents the direction of current flow
Frequency measurement range (kHz)	f_BW	/	DC	-	1
Rated residual operating current 1(mA) DC	I_∆N1	/	3.0	4.8	6
Rated residual operating current 2 (mA) rms	I_∆N2	/	15	22	30	Hz=50
Response time (ms)	Tr	AC: In=1*I_∆N2	/	150	300	Interrupting Time according to IEC62752: 5.3.11 Table 2 and 3
		AC: In=2*I_∆N2	/	90	150
		AC: In=5*I_∆N2	/	25	40
		DC: In=1*I_∆N1	/	300	10000
		DC: In=10*I_∆N1	/	90	300
		DC: In=50*I_∆N1	/	25	40

Dimensions

Download Files

Document currently available in English only.

Document Type

Document Name

Size

Product Catalog

EKRCMU-1_RCMU (Residual Current Monitoring Unit)

655.05KB

Porduct Overview

Key Features：

Dual Protection: Integrates Type A RCD functionality with 6mA DC leakage detection in a single unit.
IEC 62955 Compliance: Meets the requirements of IEC 62955, the international standard for RCMUs in EV charging stations.
Enhanced DC Protection: Detects DC leakage currents as low as 6mA, crucial for modern EV charging safety.
Connection Types: Suitable for both three-phase and single-phase connections.
Fast Response Time: Interrupting Time according to IEC62752: 5.3.11 Table 2 and 3
Self-Monitoring: Continuous self-test functionality ensures reliable operation.
Compact Design: Engineered to be compact for easy integration into EV charging stations.

Applications:

Mode 2 or Mode 3 AC charging stations
Combined AC/DC charging points
Home and workplace EV chargers
Public charging infrastructure

Type A & 6mA DC RCMU (Residual Current Monitor Unit)

ETEK Electric's Type A & 6mA DC RCMU offers comprehensive protection for EV charging stations, combining Type A RCD functionality with 6mA DC leakage detection. Compliant with IEC 62955, it ensures safety in both AC and DC charging scenarios.