{"product_id":"bender-vme420-d-1-300v-15-460hz-voltage-monitoring-relay-for-ac-dc-systems","title":"Bender VME420-D-1 300V 15-460Hz Voltage Monitoring Relay for AC DC Systems","description":"\u003cdiv\u003e\u003cspan\u003eThe VME420-D-1 is a multifunctional voltage and frequency monitoring relay from the Bender LINETRAXX® series. It is designed for monitoring undervoltage (\u0026lt; U), overvoltage (\u0026gt; U), underfrequency (\u0026lt; f), and overfrequency (\u0026gt; f) in AC and DC systems up to 300 V. Voltage measurement uses true RMS (r.m.s.) method for high accuracy even in harmonic‑rich environments.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eThis version requires an external auxiliary supply of AC 16…72 V \/ DC 9.6…94 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 (Uₙ): AC\/DC 0…300 V, 15…460 Hz\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Monitoring functions: Undervoltage, overvoltage, underfrequency, overfrequency\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Alarm outputs: Two independent SPDT changeover contacts, AC 250 V \/ 6 A\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Display: Multi‑function backlit LC display showing real‑time measured values\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· Adjustable parameters: Start‑up delay, response delay, release delay, switching hysteresis, fault memory behaviour\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 (dual terminals per connection point)\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· Standards compliance: RoHS\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Order number: B73010001\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· True RMS measurement (AC+DC) – Accurate readings even in harmonic‑distorted systems\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Preset function – Automatically determines system voltage on first power‑on and sets basic thresholds, simplifying commissioning\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Event memory – Stores the first measured value that triggered an alarm for easy fault diagnosis\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Password protection – Prevents unauthorised parameter changes\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Sealable transparent cover – Protects against unauthorised access to the operating panel\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Continuous self‑monitoring – Internal self‑diagnostics ensure operational reliability\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Built‑in test\/reset button – Allows manual testing and reset without external controls\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 of single‑phase machines and electrical installations\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Earth fault monitoring in medium‑voltage systems via voltage transformers\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Monitoring of battery systems\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e· Switching machinery and equipment at specific voltage thresholds\u003c\/span\u003e\u003c\/div\u003e","brand":"Bender","offers":[{"title":"Default Title","offer_id":44148540178520,"sku":null,"price":446.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0580\/2799\/9320\/files\/VME420-D-1.jpg?v=1779900547","url":"https:\/\/gexufein.com\/products\/bender-vme420-d-1-300v-15-460hz-voltage-monitoring-relay-for-ac-dc-systems","provider":"Gexufein Automation","version":"1.0","type":"link"}