{"product_id":"bender-ir425-d4m1c-2-300v-insulation-monitor-for-ac-dc-it-systems","title":"Bender VMD422-D-2 500V 15-460Hz Voltage Monitoring Relay for 3AC Systems","description":"\u003cdiv\u003e\u003cspan\u003eThe VMD422-D-2 is a three‑phase voltage and frequency monitoring relay from Bender, part of the LINETRAXX® series. It is designed for interface protection of distributed generation systems (\u0026gt;30 kW) connected to public low‑voltage grids in accordance with DIN V VDE V 0126‑1‑1. When voltage or frequency exceeds preset limits, the device activates its alarm relays within 180 ms. This version requires an external auxiliary supply (AC\/DC 70…300 V).\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: 3(N)AC 0…500 V, 40…65 Hz\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Supply voltage: AC\/DC 70…300 V, 15…460 Hz\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Power consumption: ≤ 4 VA\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Monitoring functions: Undervoltage, overvoltage (including 10‑minute average overvoltage), underfrequency, overfrequency, asymmetry, phase failure, phase sequence\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Alarm outputs: Two independent changeover contacts, AC 250 V \/ 6 A\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Display: LC display showing voltage and frequency in real time\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· LED indicators: Power On, Alarm 1, Alarm 2\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Time delays: Start‑up delay and release delay adjustable 0…300 s\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Operating temperature: –25 °C … +55 °C\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Mounting: DIN rail, width 36 mm\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Protection class: Housing IP30, terminals IP20\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Connection: Push‑wire terminals\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Order number: B73010007\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\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Pre‑set limits according to DIN VDE 0126‑1‑1, password‑protected\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· 10‑minute average overvoltage monitoring prevents nuisance tripping due to short voltage spikes\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· True RMS measurement for accurate readings in harmonic‑rich systems\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Event memory stores the first measured value that triggered the alarm\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Continuous self‑monitoring ensures operational reliability\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Sealable transparent cover prevents unauthorised parameter changes\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· Voltage and frequency monitoring for photovoltaic plants (\u0026gt;30 kW), wind power, hydropower, and CHP units connected to the public grid\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Automatic switching point supervision and grid interface protection\u003c\/span\u003e\u003c\/div\u003e","brand":"Bender","offers":[{"title":"Default Title","offer_id":44148211449944,"sku":null,"price":480.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0580\/2799\/9320\/files\/VMD422-D-2.....jpg?v=1779878717","url":"https:\/\/gexufein.com\/products\/bender-ir425-d4m1c-2-300v-insulation-monitor-for-ac-dc-it-systems","provider":"Gexufein Automation","version":"1.0","type":"link"}