{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1SVR730840R0500","brand":"ABB","brandSlug":"abb","productSlug":"1SVR730840R0500","canonicalUrl":"https://aoctrl.com/abb/1SVR730840R0500","factsUrl":"https://aoctrl.com/api/mcp/products/1SVR730840R0500","rawCanonicalId":null},"summary":{"shortDescription":"ABB Entrelec, Voltage Monitor, 3-Phase, DIN Rail, 24-240V AC/DC Control Range, 1SVR730840R0500.","salesMarkdown":"The ABB Entrelec 1SVR730840R0500 is a 3-phase voltage monitor on a DIN-rail form factor, covering a 24-240V AC/DC control range. It provides over- and under-voltage protection with three selectable measuring ranges (0.3-1.5 FLA, 1-5 FLA, 3-15 FLA) and an adjustable trip delay of 1-30 seconds. The output is two SPDT contacts, giving you independent alarm or control paths for each fault condition. The 24-240V AC/DC control range means this relay powers itself from the monitored circuit across a wide voltage band — no separate control supply needed. The three FLA ranges let you match the monitor to motor nameplate current without an external CT. The 1-30 second trip delay prevents nuisance tripping on momentary sags or inrush; set it longer than the motor start time. Two SPDT outputs give you one contact for alarm and one for trip, or a redundant safety path. Snaps onto standard 35mm DIN rail inside a motor control center or distribution panel. The wide AC/DC supply range means it can share a backplane with 24V PLCs or 230V contactors without a dedicated power supply. The three-phase monitoring catches phase loss, phase reversal, and undervoltage on motor feeds — common failure modes on conveyor drives and pump starters.","metaTitle":"ABB 1SVR730840R0500 Voltage Monitor, 3-Phase, 24-240V AC/DC","metaDescription":"ABB Entrelec 1SVR730840R0500 3-phase voltage monitor, 24-240V AC/DC, DIN rail mount. Over/under voltage protection, adjustable trip delay 1-30 sec. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["General Purpose Relays"],"specifications":{"Type":"Voltage Monitor","Phase":"3","title":"1SVR730840R0500","Mounting":"DIN Rail","description":"ABB Entrelec 1SVR 730 840 R0500 Current Monitor, 3-|Current Monitoring Relay. 1-Phase, 24-240V AC/DC. Din Mount. Functional Protection: Over Voltage, Under Voltage. Measuring ranges: 0.3-1.5 FLA, 1-5 FLA, 3-15 FLA. Adjustable Trip Range: 1-30 seconds. Output: 2 SPDT Contacts.","lifecycle_stage":"current","Volts AC Control Range":"24 - 240","Volts DC Control Range":"24 - 240"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$148.00","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/4793114cbad6d8099cae574501dd7c57.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy 1SVR730840R0500?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at the time of your quote request."},{"question":"What does the 24-240V AC/DC control range mean for installation?","answer":"It means the relay powers itself from the monitored circuit across a wide voltage band — no separate control supply is needed. This simplifies wiring in panels with mixed voltage levels."},{"question":"What are the measuring ranges on this voltage monitor?","answer":"Three selectable ranges: 0.3-1.5 FLA, 1-5 FLA, and 3-15 FLA. This lets you match the monitor to motor nameplate current without an external current transformer."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/abb/1SVR730840R0500","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/abb/1SVR730840R0500 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}