{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1132-4EF32-0KH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1132-4EF32-0KH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1132-4EF32-0KH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1132-4EF32-0KH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1132-4EF32-0KH0, 3-pole molded case circuit breaker, 32 A rated continuous current Iu, 121 kA breaking capacity at 240 V, TM240 thermal-magnetic release, shunt trip, line protection version.","salesMarkdown":"## What this MCCB does — and what the ratings actually mean That TM240 designation means the thermal trip element is fixed at 32 A — no field-adjustable thermal dial — and the magnetic instantaneous pickup is set at 240 A (7.5x In). For a panel-builder or MRO planner, this is a line-protection breaker, not a motor-protection device; it's sized for cable and busbar protection in distribution panels where you want a fixed thermal curve and no nuisance tripping from inrush. The breaking capacity figures tell the real story for selectivity coordination. At 415 V it's still 75.6 kA, and at 690 V it drops to 11.9 kA. Thermal derating is published across the operating range: it holds full 32 A from 40 °C through 50 °C, then steps down to 30.72 A at 55 °C, 30.08 A at 60 °C, 29.44 A at 65 °C, and 28.8 A at 70 °C. ## Built-in auxiliaries and release options The trip indicator (mechanical flag) and voltage trigger are both present, so you get local visual confirmation of a trip event without needing to read the aux contacts. If your spec calls for any of those, you need a different 3VA suffix — this one is a straightforward line-protection breaker with remote trip capability only. Dimensions: 130 mm height, 76.2 mm width (3-pole frame), 70 mm depth. The 15 000 latching endurance cycles (mechanical) is typical for a distribution MCCB — not a switching-duty contactor, but fine for the occasional manual disconnect or test operation.","metaTitle":"Siemens 3VA1132-4EF32-0KH0 SENTRON MCCB, 32 A, 121 kA at 240","metaDescription":"Siemens SENTRON 3VA1132-4EF32-0KH0 molded case circuit breaker, 3-pole, 32 A rated, 121 kA breaking at 240 V. Line protection with TM240 release and shunt trip. Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"76.2 mm","Height":"130 mm","at 240 V":"121 kA","at 415 V":"75.6 kA","at 440 V":"52.5 kA","at 690 V":"11.9 kA","at 40 °C":"32 A","at 45 °C":"32 A","at 50 °C":"32 A","at 55 °C":"30.72 A","at 60 °C":"30.08 A","at 65 °C":"29.44 A","at 70 °C":"28.8 A","Trip indicator":"Yes","Number of poles":"3","Product version":"Line protection","Voltage trigger":"Yes","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Molded case circuit breaker","Latching - endurance":"15 000","Undervoltage Release":"No","Communication Function":"No","Phase failure detection":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Auxiliary contact version":"2 auxiliary switches + 1 trip alarm switch HQ","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Other Measurement Function":"No","Rated continuous current Iu":"32 A","Rated insulation voltage Ui":"800 V","Design of the auxiliary release":"Shunt trip (STL)","Ground fault monitoring version":"Without","Of The Integrated Auxiliary Trip":"3VA9688-0BL33","Design of the overcurrent release":"TM240","Design of short-circuit protection":"For switching power values in DC networks, see the 3VA molded case circuit breaker device manual; link to be found under Service & Support in the last chapter","Protection class IP / on the front":"IP40","Reference code / acc. to DIN EN 81346-2":"Q","Adjustable response value time / tr max.":"1","Adjustable response value time / tr min.":"1","Max. rated operational voltage Ue with DC":"500 V","Undervoltage Release With Leading Contact":"No","Product extension / optional / motor drive":"Yes","Adjustable response value current / Ir max.":"32 A","Adjustable response value current / li max.":"320 A","Adjustable response value current / li min.":"160 A","Adjustable response value current / lr min.":"22 A","Neutral conductors / upgradeable/retrofittable":"No","Number of CO contacts / for auxiliary contacts":"3","Protective function of the overcurrent release":"LI","Of The Integrated Auxiliary Switch/Alarm Switch":"3VA9988-0AB12","Switching capacity class of the circuit breaker":"S","Max. rated operational current of the frame size":"160 A","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Type of electrical connection / for main current circuit":"lug terminal","Arrangement of electrical connectors / for main current circuit":"Front terminal","Type of connectable conductor cross-section, connection screw, width x thickness , max.":"17 x 6.5","Type of connectable conductor cross-section, connection screw, width x thickness , min.":"12 x 0"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/c3de18f10dd52266f770fd73388f1ee5.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=136877&mlfb=3VA1132-4EF32-0KH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1132-4EF32-0KH0/alternatives.json"},"ai":{"faq":[{"question":"Who supplies 3VA1132-4EF32-0KH0 and how is it quoted for volume purchases?","answer":"We source this part through independent distribution channels and quote it to order against an RFQ. Availability and current pricing are confirmed at quote time — no automated stock figures here, just a real quote for your BOM line."},{"question":"What is the breaking capacity of 3VA1132-4EF32-0KH0 at different voltages?","answer":"At 240 V it interrupts 121 kA, at 415 V it is 75.6 kA, at 440 V it is 52.5 kA, and at 690 V it drops to 11.9 kA. These are the published short-circuit ratings for this 32 A frame."},{"question":"What does the TM240 release mean on this MCCB?","answer":"TM240 means a fixed thermal-magnetic release: the thermal element is set for 32 A continuous (non-adjustable), and the magnetic instantaneous pickup is calibrated at 240 A (7.5x In). This is a line-protection breaker, not a motor-protection device with adjustable thermal dial."},{"question":"What auxiliaries come with 3VA1132-4EF32-0KH0?","answer":"It includes a factory-installed shunt trip release (STL), 2 auxiliary switches, and 1 trip alarm switch (HQ configuration). The shunt trip allows remote tripping via a control voltage. There is no undervoltage release, no communication module, and no ground-fault monitoring on this variant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1132-4EF32-0KH0","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/3VA1132-4EF32-0KH0 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}}