{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"RM4JA32Q","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"RM4JA32Q","canonicalUrl":"https://aoctrl.com/schneider/RM4JA32Q","factsUrl":"https://aoctrl.com/api/mcp/products/RM4JA32Q","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Harmony RM4JA32Q industrial current measurement relay, 1–15 A AC/DC, 2 C/O output contacts, adjustable time delay 0.05–30 s, screw terminals, 80 x 45 x 78 mm.","salesMarkdown":"## What it is and what it guards The RM4JA32Q is a Harmony current measurement relay from Schneider Electric — it watches for overcurrent or undercurrent conditions on a monitored line and trips its output contacts when the measured current crosses the set threshold. It covers six measurement ranges: 1–5 A AC/DC, 3–15 A AC/DC, and 300–1500 mA AC/DC, so it fits motor feeder monitoring, pump protection, or heater circuit supervision in a single device. Two C/O (changeover) relay contacts give you both a normally-open and normally-closed signal path per channel — enough to drive an alarm and a trip in the same relay. ## Setting the trip point and delay The adjustable time delay from 0.05 to 30 seconds lets you ride through inrush or transient events before the relay trips — critical for motor start-up or transformer energisation where a short overcurrent is normal. The output relay trips when measured current exceeds the set threshold (overcurrent) or falls below it (undercurrent), configurable by the front-panel dials. Maximum measuring cycle is 80 ms, so the relay responds fast enough for most protection schemes without nuisance tripping on sub-cycle noise. ## Panel fit and environmental tolerance The RM4JA32Q measures 80 mm deep, 45 mm wide, and 78 mm high — a compact DIN-rail footprint that fits standard control-panel enclosures without crowding adjacent devices. IP20 on the terminals and IP50 on the casing means it's protected against dust ingress inside a panel but not for washdown environments — keep it in a sealed cabinet. Screw terminals accept 1.5 mm² flexible with cable end or 2.5 mm² flexible without — standard for panel wiring up to 14 AWG.","metaTitle":"Schneider RM4JA32Q Current Measurement Relay, 1–15 A, 2 C/O","metaDescription":"Schneider Electric RM4JA32Q Harmony current measurement relay, 1–15 A AC/DC, adjustable 0.05–30 s delay, 2 C/O contacts, IP20/IP50, active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["General Purpose Relays"],"specifications":{"Depth":"3.1 in (80 mm)","Width":"1.8 in (45 mm)","Height":"3.07 in (78 mm)","Category":"22376-RELAYS-MEASUREMENT(RM4)","Standards":"EN/IEC 60255-6","Relay Type":"Current measurement relay","Relay name":"RM4J","9 Mm Pitches":"5","Output contacts":"2 C/O","Time delay type":"Adjustable 0.05...30 s","lifecycle_stage":"current","Number of cables":"2","Pollution degree":"3 IEC 60664-1","Range of Product":"Harmony Relay","Shock resistance":"15 gn 11 ms IEC 60255-21-1","Contacts material":"90/10 silver nickel contacts","Measurement range":"1...5 A current AC 1...5 A current DC 3...15 A current AC 3...15 A current DC 300...1500 mA current AC 300...1500 mA current DC","Relative humidity":"15...85 % IEC 60721-3-3","Switching voltage":"250 V AC","Tightening torque":"5.3...9.7 lbf.in (0.6...1.1 N.m)","Operating position":"Any position without derating","Output relay state":"Tripped if A measured > A set Tripped if V measured > V set","Mechanical durability":"30000000 cycles","Nbr. of units in pkg.":"1","Connections - terminals":"Screw terminals, 2 x 1.5 mm²flexible with cable end Screw terminals, 2 x 2.5 mm²flexible without cable end","Dielectric test voltage":"2.5 kV","IP degree of protection":"IP20 IEC 60529 terminals) IP50 IEC 60529 casing)","Maximum measuring cycle":"80 ms","Switching capacity in mA":"10 mA 12 V","Internal input resistance":"0.02 Ohm 0.006 Ohm 0.06 Ohm","Maximum switching voltage":"440 V AC","Product or Component Type":"Industrial measurement and control relays","Switching threshold drift":"0.1 Uc","Non-dissipating shock wave":"4.8 kV","Relay monitored parameters":"Overcurrent or undercurrent detection","Operating Voltage Tolerance":"0.85...1.1 Uc","Environmental characteristic":"3K3","Contacts type and composition":"2 C/O","Electromagnetic compatibility":"Electrostatic discharge - test level: 6 kV level 3 (contact discharge) conforming to IEC 61000-4-2 Electrostatic discharge - test level: 8 kV level 3 (air discharge) conforming to IEC 61000-4-2","Resistance to fast transients":"2 kV IEC 61000-4-4 level 3","Disturbance radiated/conducted":"CISPR 22 - class A CISPR 11 group 1 - class A","Terminals description ISO n°1":"(15-16-18)OC (25-26-28)OC (C-B1-B2-B3)CO (A1-A2)CO","[Ie] rated operational current":"2 A 24 V DC-13 158 °F (70 °C) IEC 60947-5-1/1991 2 A 24 V DC-13 158 °F (70 °C) VDE 0660 3 A 115 V AC-15 158 °F (70 °C) IEC 60947-5-1/1991 3 A 115 V AC-15 158 °F (70 °C) VDE 0660 3 A 24 V AC-15 158 °F (70 °C) IEC 60947-5-1/1991 3 A 24 V AC-15 158 °F (70 °C) VDE 0660 3 A 250 V AC-15 158 °F (70 °C) IEC 60947-5-1/1991 3 A 250 V AC-15 158 °F (70 °C) VDE 0660 0.1 A 250 V DC-13 158 °F (70 °C) IEC 60947-5-1/1991 0.1 A 250 V DC-13 158 °F (70 °C) VDE 0660 0.3 A 115 V DC-13 158 °F (70 °C) IEC 60947-5-1/1991 0.3 A 115 V DC-13 158 °F (70 °C) VDE 0660","Maximum power consumption in VA":"3 VA AC","Permissible continuous overload":"20 A 2 A 7 A","Protection against electric shocks":"2 kV level 3 IEC 61000-4-5","Ambient Air Temperature for Storage":"-40...185 °F (-40...85 °C)","Permissible non repetitive overload":"10 A 100 A 15 A","Resistance to electromagnetic fields":"9.1 V/m (10 V/m) IEC 61000-4-3 level 3","Ambient air temperature for operation":"-4...149 °F (-20...65 °C)","Resistance to electrostatic discharge":"6 kV contact IEC 61000-4-2 level 3 8 kV air IEC 61000-4-2 level 3","Setting accuracy of the switching threshold":"+/-5 %","[Ith] conventional free air thermal current":"8 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://www.se.com/il/en/product/RM4JA32Q/current-measurement-relay-rm4j-range-0-3-15-a-380-415-v-ac/","alternativesUrl":"https://aoctrl.com/api/mcp/products/RM4JA32Q/alternatives.json"},"ai":{"faq":[{"question":"What compliance documentation does Schneider provide for the RM4JA32Q?","answer":"The RM4JA32Q is designed to EN/IEC 60255-6 (measuring relays) and IEC 60664-1 pollution degree 3. It carries IEC 61000-4-2/4-4 EMC immunity levels and a 2.5 kV dielectric test voltage."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/RM4JA32Q","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/schneider/RM4JA32Q when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}