{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SSP3A250BDT","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"SSP3A250BDT","canonicalUrl":"https://aoctrl.com/schneider/SSP3A250BDT","factsUrl":"https://aoctrl.com/api/mcp/products/SSP3A250BDT","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Harmony SSP3A250BDT, 3-phase solid state relay, 0.4...50 A, 42...660 VAC, zero-voltage switching, panel mount.","salesMarkdown":"The Schneider Electric Harmony SSP3A250BDT is a 3-phase solid state relay rated for 0.4 to 50 A load current and 42 to 660 VAC output, with zero-voltage switching to minimize inrush on turn-on. Response time is fixed at 8.33 ms on both turn-on and turn-off, so it switches at the zero-cross of the AC waveform — no half-cycle inrush to blow your heater or contactor coil. Surge current rating of 715 A for 20 ms handles motor starting and transformer inrush without losing the SCR. ## Mounting and thermal Panel mount only — no DIN rail clip. A thermal pad is included, so you don't need to source separate interface material. Thermal resistance is 0.15 °C/W, so plan your heatsink accordingly for 50 A continuous. Torque the input terminals to 1.2 N·m and output terminals to 2.5 N·m. Input accepts up to 2.5 mm², output up to 10 mm². It carries a CE mark and complies with IEC/EN 62314, IEC/EN 60947-4-2, IEC/EN 60947-4-3, UL 60947-4-2, and CSA C22.2 No. 14. Pollution degree 2, overvoltage category III, IP20 finger-safe enclosure, and V0 flame retardance per UL 94. Dielectric strength is 4 kV AC between input and output, and 4 kV AC from either to case. Off-state leakage is under 3 mA.","metaTitle":"Schneider SSP3A250BDT 3-Phase SSR, 50 A, 660 VAC","metaDescription":"SSP3A250BDT 3-phase zero-voltage SSR, 0.4-50 A, 42-660 VAC. Panel mount, 8.33 ms response, surge 715 A. Active production. Source via RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":[],"specifications":{"Depth":"1.6 in (41 mm)","Width":"4.09 in (104 mm)","Height":"2.9 in (74.6 mm)","Marking":"CE","Category":"US10CP222375","Standards":"IEC/EN 62314 IEC/EN 60947-4-2 IEC/EN 60947-4-3 UL 60947-4-2 C22.2 No. 14","Test Button":"Without test button","Load current":"0.4...50 A","Input current":"15...35 mA","LED indicator":"LED, green input","Response time":"8.33 ms (turn-on) 8.33 ms (turn-off)","Surge current":"715 A 20 ms 750 A 16.6 ms","Output voltage":"42...660 V AC","lifecycle_stage":"current","Flame retardance":"V0 conforming to UL 94","Mounting Support":"Panel","Number of phases":"3 phase","Pollution degree":"2","Range of Product":"Harmony Solid State Relays","Device short name":"SSP","Tightening torque":"1.2 N.m for input 2.5 N.m for output","Co-ordination type":"TVS","Line Rated Current":"50 A","Provided accessory":"Thermal pad","Thermal resistance":"0.15 °C/W","Device presentation":"Complete product","Dielectric strength":"4 kV AC for input/output 4 kV AC for input or output to case","Maximum capacitance":"8 pF for input/output","Maximum voltage drop":"= 1000 MOhm at 500 V DC","Overvoltage category":"III","Nbr. of units in pkg.":"1","Output switching mode":"Zero voltage switching","Transient overvoltage":"1200 V","Maximum I2t for fusing":"2520 A².s for 10 ms at 50 Hz 2320 A².s for 8.3 ms at 60 Hz","Connections - terminals":"Screw terminals 1 x 0.2...1 x 2.5 mm², AWG 24...AWG 14) input Screw terminals 1 x 1.5...1 x 10 mm², AWG 16...AWG 8) output","IP degree of protection":"IP20","Maximum leakage current":"3 mA off-state","Solid state output type":"Zero voltage switching","Maximum switching voltage":"1 V DC turn-off","Minimum switching voltage":"4 V DC turn-on","Product or Component Type":"Panel mount relay","[Uc] control circuit voltage":"4...32 V DC","Electromagnetic compatibility":"Electrostatic discharge 4 kV criteria B contact discharge conforming to IEC 61000-4-2 Electrostatic discharge 8 kV criteria B air discharge conforming to IEC 61000-4-2 Conducted RF disturbances 10 V, 0.15...80 MHz criteria A conforming to IEC 61000-4-6 Radiated radio-frequency electromagnetic field immunity test 10 V/m, 80 MHz...1 GHz criteria A conforming to IEC 61000-4-3 Surge immunity test 1 kV criteria B output ports line to line conforming to IEC 61000-4-5 Surge immunity test 2 kV criteria B output ports line to earth conforming to IEC 61000-4-5 Surge immunity test 1 kV criteria B input ports line to earth conforming to IEC 61000-4-5 Electrical fast transient/burst immunity test 2 kV, 5kHz criteria B output ports conforming to IEC 61000-4-4 Immunity to voltage dips 0 %/20 ms criteria B conforming to IEC 61000-4-11 Immunity to voltage dips 40 %/200 ms criteria C conforming to IEC 61000-4-11 Immunity to voltage dips 70 %/500 ms criteria C conforming to IEC 61000-4-11 Immunity to short interruption 0 %/5 s criteria C conforming to IEC 61000-4-11 Electrical fast transient/burst immunity test 1 kV, 5kHz criteria B input ports conforming to IEC 61000-4-4 Radiated radio-frequency electromagnetic field immunity test 3 V/m, 1.4...6 GHz criteria A conforming to IEC 61000-4-3 Radiated emission 30...1000 Mhz environment A conforming to IEC 60947-1 Conducted emission 0.15...30 Mhz environment A conforming to IEC 60947-1","Ambient Air Temperature for Storage":"-40...257 °F (-40...125 °C)","Ambient Air Temperature for Operation":"-40...176 °F (-40...80 °C)","[Uimp] rated impulse withstand voltage":"0.8 kV for input to case 6 kV for input/output circuit 6 kV for input/output to case"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$97.79 – $166.00","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/d0cdcd458b9c177ce5253b77ef5b7e59.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/SSP3A250BDT/alternatives.json"},"ai":{"faq":[{"question":"What is its depth?","answer":"Depth is 1.6 in (41 mm)."},{"question":"What is its width?","answer":"Width is 4.09 in (104 mm)."},{"question":"What compliance documentation does it have?","answer":"It is CE marked and complies with IEC/EN 62314, IEC/EN 60947-4-2, IEC/EN 60947-4-3, UL 60947-4-2, CSA C22.2 No. 14. Rated IP20, pollution degree 2, overvoltage category III, and V0 flame retardance."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/SSP3A250BDT","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/SSP3A250BDT when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:21:01.794Z","lastPublished":"2026-09-02T08:21:01.794Z","indexable":true}}