{"product_id":"bender-irdh275bm-727-insulation-monitor-for-it-system","title":"Bender ISOPV-335 DC 1000V PV Insulation Monitoring Device for IT System","description":"\u003cdiv\u003e\u003cspan\u003eThe ISOPV-335 is a German-engineered insulation monitoring device from Bender, designed for photovoltaic systems. It continuously monitors the insulation resistance of ungrounded systems (IT systems). Capable of handling voltage fluctuations common in PV arrays and high system leakage capacitances, it ensures safe and stable system operation. The device complies with relevant international safety standards and is widely used in photovoltaic power plants, industrial IT systems, and equipment incorporating variable frequency drives and UPS.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eKey Features \u0026amp; Functions\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Reliable Insulation Monitoring\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e  Utilises the advanced AMP Plus measuring method, which automatically adapts to typical slow voltage variations in PV systems (e.g., DC voltage fluctuations due to changing light conditions). This guarantees accurate, stable measurements and avoids false alarms.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· High Leakage Capacitance Adaptation\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e  Large PV systems often have high leakage capacitance to earth due to distributed capacitance or EMI filters. The ISOPV-335 automatically adapts to system leakage capacitance up to 2000 µF and optimises the measurement time, ensuring timely response.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Two Independently Adjustable Alarm Thresholds\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e  The device provides two independent alarm relays. Each relay’s response value can be set independently within a range of 0.2 kΩ … 100 kΩ, allowing flexible configuration according to different system insulation requirements and safety levels.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Built‑in Self‑Test\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e  An automatic self‑test function continuously monitors the device’s own operational status. If an internal fault occurs, it can signal the issue promptly, ensuring system safety is not reliant on an unreliable monitoring device.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Communication \u0026amp; Integration\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e  Equipped with an RS‑485 interface, the device supports data exchange with Bender or third‑party monitoring systems and PLCs, facilitating remote monitoring and centralised management.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Mandatory Coupling Device\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e  As part of the ISOMETER® isoPV series, the ISOPV-335 must be used together with the Bender AGH-PV coupling device to be correctly connected to the main circuit for insulation measurement.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eTechnical Specifications\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Rated system voltage (Uₙ): AC 0 … 793 V \/ DC 0 … 1100 V\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· System leakage capacitance: ≤ 2000 µF\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Alarm response values (Rₐₙ₁ \/ Rₐₙ₂): 0.2 kΩ … 100 kΩ, independently adjustable\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Measuring method: AMP Plus (self‑adapting to voltage changes)\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Outputs: 2 independent alarm relays (changeover contacts)\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Communication interface: RS‑485\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Self‑test: Automatic internal self‑test\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Operating temperature range: -25 °C … +70 °C\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Protection class (housing): IP30\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Mounting: DIN rail (35 mm)\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Required accessory: Bender AGH-PV coupling device (mandatory)\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eTypical Applications\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Photovoltaic systems – Insulation monitoring of DC or AC main circuits in IT systems\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Industrial IT systems – AC\/DC ungrounded systems with variable frequency drives, uninterruptible power supplies (UPS)\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Large PV arrays – Installations with high distributed capacitance and noticeable voltage fluctuations\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Energy storage systems, DC charging stations – Power electronic equipment requiring DC insulation monitoring\u003c\/span\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Bender","offers":[{"title":"Default Title","offer_id":44073994125400,"sku":null,"price":2743.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0580\/2799\/9320\/files\/ISOPV-335.jpg?v=1778124272","url":"https:\/\/gexufein.com\/products\/bender-irdh275bm-727-insulation-monitor-for-it-system","provider":"Gexufein Automation","version":"1.0","type":"link"}