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HUMAN MACHINE INTERFACE (HMI)
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PROGRAMMABLE LOGIC CONTROLLER (PLC)
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AUTOMATIC VOLTAGE REGULATOR (AVR)
Bender ISOMETER® isoCHA425-D4-4 Insulation Monitoring Device for DC Charging Stations, DC 0–400V, CCS/CHAdeMO IT Systems
Specification Details
Brand: Bender
Product Family: ISOMETER®
Model: isoCHA425-D4-4
Device Type: Insulation Monitoring Device
Application: DC EV Charging Stations
System Type: Unearthed DC / IT System
CCS Voltage Range: DC 0–400 V
CHAdeMO Voltage Range: DC 50–400 V
PART NO :- ISOCH425-D4-4 (B71036395)
SUPPLY VOLTAGE :- 100-240V AC
Insulation Monitoring: Insulation Resistance RF
CCS Fault Detection: Up to 2 MΩ
Maximum Leakage Capacitance: 5 μF for CCS
System Voltage Measurement: True RMS
DC Voltage Measurement: L+/PE and L−/PE
Alarm Thresholds: 5–250 kΩ, adjustable
Communication: RS-485, galvanically isolated
Protocols: BMS, Modbus RTU, IsoData
Display: Multifunction LC Display
Alarm Outputs: K1 / K2 Relays
Indicators: AL1 / AL2 LEDs
Mounting: DIN Rail / Screw Mounting
DIN Rail Standard: IEC 60715
Enclosure Material: Polycarbonate
Weight: ≤150 g
Standards/Approvals: CE, UKCA, cULus LISTED, cRUus, CHAdeMO
Manufacturer: Bender GmbH & Co. KG
Application: EV DC Charging, DC Fast Charging, Industrial IT Systems
Country Of Origin: Made In GERMANY
Condition: Used Excellent Working (As Per Photos)
Shipping: Fast & Safe Worldwide Shipping Available.
| Brand | BENDER |
|---|---|
| Category | OTHERS |
The Bender ISOMETER® isoCHA425-D4-4 is an industrial insulation monitoring device specifically designed for unearthed DC systems and electric vehicle DC charging stations. It continuously monitors insulation resistance in DC charging infrastructure and helps identify insulation faults before they can compromise the safe operation of the charging system.
The isoCHA425 is designed for CCS and CHAdeMO DC charging applications, covering CCS systems from DC 0 to 400V and CHAdeMO systems from DC 50 to 400V. The device monitors insulation resistance and can detect both asymmetrical and symmetrical insulation faults according to the configured operating mode.
For enhanced system monitoring, the device measures system voltage using True-RMS technology, provides undervoltage and overvoltage detection, and measures the DC voltages between the positive/negative conductors and protective earth. Configurable alarm thresholds, delay settings, LED indicators, LC display and relay outputs provide flexible fault monitoring for charging equipment.
The integrated galvanically isolated RS-485 interface supports Bender Measurement Device Interface (BMS), Modbus RTU and IsoData communication, making the device suitable for integration into industrial automation and EV charging monitoring systems.
The isoCHA425-D4-4 is therefore well suited for DC fast-charging stations, EV charging infrastructure, charging cabinets and industrial DC IT systems where continuous insulation monitoring is required.
- Genuine Bender ISOMETER® isoCHA425-D4-4 insulation monitoring device.
- Designed for unearthed DC systems (IT systems).
- Suitable for DC EV charging stations using CCS and CHAdeMO charging systems.
- CCS nominal voltage range: DC 0–400V.
- CHAdeMO voltage range: DC 50–400V.
- Monitors insulation resistance (RF) of DC charging systems.
- Detects asymmetrical insulation faults with response times of up to 1 second under specified conditions.
- Symmetrical insulation faults can be detected within 10 seconds.
- Supports insulation fault detection up to 2 M? in CCS mode.
- Measures system leakage capacitance up to 5 ?F for CCS applications.
- Measures L+/PE and L?/PE DC voltages.
- True-RMS system voltage measurement with undervoltage and overvoltage detection.
- Adjustable prewarning and alarm thresholds from 5–250 k?.
- Features AL1 and AL2 alarm indication, LC display and alarm relays.
- Integrated automatic device self-test and connection monitoring.
- RS-485 galvanically isolated communication interface supporting BMS, Modbus RTU and IsoData.
- DIN-rail mounting according to IEC 60715.
- Compact polycarbonate enclosure with approximately 150 g maximum weight.
