The Contrel ARI-R15 is a high-voltage insulation monitor adapter designed to extend the measurement range of Contrel RI-R15 insulation monitoring relays in ungrounded (IT) DC systems.
It allows safe and accurate insulation resistance measurement in high-voltage PV systems, battery energy storage (BESS), and industrial DC applications up to 1000 V DC.

This adapter ensures galvanic isolation between the monitored circuit and the measuring input of the RI-R15 unit, maintaining measurement precision and system safety in compliance with IEC/EN 61557-8 standards.

🔧 Technical Specifications:

• Model: ARI-R15
• Manufacturer: Contrel S.r.l., Italy
• Function: Voltage adapter for insulation monitoring
• Compatible Device: RI-R15 insulation monitor
• Input Voltage Range: Max 700 / 800 / 900 / 1000 V DC
• Output (to RI-R15): Scaled DC voltage, galvanically isolated
• Polarity: +Vc / –Vc / PE terminals
• Mounting: DIN rail (modular housing with transparent cover)
• Protection Degree: IP20
• Operating Temperature: -20 °C … +60 °C
• Compliance: IEC/EN 61557-8, CE, RoHS
• Country of Origin: Italy

📌 Key Features:
✔️ Extends RI-R15 voltage range up to 1000 V DC
✔️ Ensures safe insulation monitoring in PV and BESS systems
✔️ High-precision, galvanically isolated measurement
✔️ Compact DIN-rail design with clear terminal labeling
✔️ Trusted Contrel quality – made in Italy

🧩 Typical Applications:

• Solar PV arrays (up to 1000 V DC)
• Battery energy storage systems (BESS)
• DC charging infrastructure
• Industrial ungrounded IT systems

💚 Condition: Used
🔄 Warranty: 6 months by Green Energy