AC/DC compatible residual current monitor (for grounding wiring method)
RCMS410, RCMS425-D, RCSM425-L
Affordable, compact, and high-performance new model: Residual current monitor that visualizes invisible dangers.
The RCMS series is a residual current monitor for grounding wiring systems, compatible with AC/DC circuits. (Residual current refers to the current that leaks from a circuit that does not return to its original path due to equipment failure or short circuits.) The measurement ranges for residual current and frequency are as follows: Frequency: DC, 15Hz to 20kHz; Residual current (RMS value): 2mA to 70A. This device can measure up to four circuits, allowing for individual alarm set points for each circuit. In addition to residual current, alarms can also be assigned to device errors and current transformer connection errors, making it easier to identify the cause of errors. Furthermore, it is possible to output the residual current value as an analog signal, enabling control while monitoring current values not only with this device but also with PCs and PLCs. It is equipped with a Modbus RTU interface for communication with higher-level systems. Parameter settings can be performed via this Modbus RTU, but it is also possible to use a smartphone app called Bender Connect App for NFC communication.
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basic information
〇Residual Current Measurement • Monitoring Target System: Supports AC/DC circuits with grounding wiring, capable of monitoring up to 4 circuits. Frequency range for AC is from 15Hz to 20kHz. • Standards: Compliant with DIN EN 620201 (IEC 620201) • Others: Frequency analysis up to the 400th harmonic is possible 〇Setting Value Monitoring • Residual current alarm setting values: Main alarm and pre-alarm can be individually set for each circuit • Frequency response settings are also possible 〇Interface • Communication: RS-485 (Modbus RTU protocol), NFC • Input/Output: Digital input x1, Digital input/output x1, Multifunction digital/analog output x1 • Relay: Alarm relay x2 〇Special Functions • Monitoring Requirements: Functionality can be expanded retroactively • Preset Function: Customer-specific settings can be saved as presets (factory default settings) 〇Supply Voltage • RCMS410: DC24V • RCMS425-D/L: DC24V, AC/DC 100–240V
Price information
Prices vary depending on the model. Please contact us if you would like to know the prices.
Delivery Time
※Delivery times vary depending on the quantity and model. Please feel free to inquire.
Applications/Examples of results
Bender's insulation monitoring devices have been implemented by various companies, including major automobile manufacturers. Additionally, they are used in a variety of applications, not only in solar and wind power generation but also in energy storage systems and production equipment. For specific applications and achievements, please feel free to contact us.
Line up（3）
| Model number | overview |
|---|---|
| RCMS410 | The supply voltage is only DC24V. It is a simple type without a display. It is recommended for those who want to try the RCMS function at a low cost. |
| RCMS425-D | The supply voltage is DC 24V, AC/DC 100-240V. Since it is equipped with a display, it is easy to monitor settings and residual current while looking at the device. It is recommended for those who perform monitoring and settings on-site. |
| RCMS425-L | The supply voltage is DC 24V, AC/DC 100-240V. Since it does not have a display, it is primarily designed for setting and monitoring using a PC or smartphone. |
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Company information
Our company is engaged in the business of acting as an export and import agent for electrical equipment. We offer a diverse range of insulation monitoring devices using ungrounded wiring methods, tailored to various applications and types, including the safe operation of plants and factories, submarine cables, and battery systems. Additionally, we also provide ground fault current monitors for grounded wiring methods, suitable for AC circuits and AC/DC circuits.