{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"CR1BM33M21","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"CR1BM33M21","canonicalUrl":"https://aoctrl.com/schneider/CR1BM33M21","factsUrl":"https://aoctrl.com/api/mcp/products/CR1BM33M21","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys F CR1BM33M21, magnetic contactor, 3-pole, 1000 A AC-3, 1250 A Ith, bistable latching coil 220-230 V AC 50-400 Hz.","salesMarkdown":"The CR1BM33M21 is a TeSys F magnetic contactor from Schneider Electric, a bistable (latching) 3-pole device rated for 1000 A in AC-3 duty at 440 V — that's the motor-switching rating, so it handles heavy induction motor loads up to that current. ## Coil and control circuit — the bistable latching logic This is a latching contactor: the coil draws power only during the switching transition, then holds its state magnetically. Control voltage is 220-230 V AC, 50-400 Hz. Latching consumption hits 1100-1650 VA depending on frequency; unlatching is lower, 100-165 VA. The coil operates between 85% and 110% of rated voltage for both latching and unlatching. Operating time is 100-150 ms to latch, 20-40 ms to unlatch. ## Breaking capacity and fault clearance Rated breaking capacity varies with voltage: 10000 A at 220-440 V, 8000 A at 600-690 V, 4000 A at 1000 V. The making capacity (Irms) is 10000 A. For fault protection, the manufacturer specifies 1200 A aM, gG, or BS88 fuses on the power circuit. This gives the panel builder a clear coordination target for upstream protection. ## Thermal performance and operating conditions Power dissipation per pole is 280 W in AC-1 (resistive) and 180 W in AC-3 (motor) duty — relevant for enclosure heat rise calculations. Ambient operating range is -15 to 70 °C. Mechanical durability is rated at 1,000,000 cycles, with a maximum operating rate of 120 cycles per minute at 40 °C. ## Insulation coordination and standards compliance Rated insulation voltage (Ui) for the control circuit is 1000 V per BS 775, IEC 60158-1, and IEC 60947-4, and 1500 V per VDE 0110 group C. The power circuit is rated for 1000 V AC and 1000 V DC. The contactor carries protective treatment TH (tropicalized, humidity-resistant).","metaTitle":"Schneider CR1BM33M21 TeSys F Bistable Contactor, 1000 A AC-3","metaDescription":"Schneider CR1BM33M21 TeSys F magnetic contactor, 3-pole, 1000 A AC-3 at 440 V, 1250 A Ith. Bistable latching coil 220-230 V AC. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Reversing Contactors"],"specifications":{"Depth":"375 mm","Range":"TeSys","Width":"475 mm","title":"CR1BM33M21","Height":"490 mm","Coil type":"Standard","description":"bistable contactor CR1-B - 3 poles - 1000 A - AC-3 - 440V","Product name":"TeSys F","Operating time":"100...150 ms latching 20...40 ms unlatching","lifecycle_stage":"current","Quantity per set":"Set of 10","Average impedance":"0.18 Ohm - Ith 1250 A 50 Hz for control circuit","Device short name":"CR1F","Poles description":"3P","Operating altitude":"3000 m without derating","Operating position":"+/- 5°","Average Consumption":"1100 VA AC 50/60 Hz latching 1650 VA AC 50/60 Hz latching 100 VA AC 400 Hz unlatching 1000 VA AC 400 Hz latching 110 VA AC 50/60 Hz unlatching 115 VA AC 400 Hz unlatching 125 VA AC 50/60 Hz unlatching 1500 VA AC 400 Hz latching 160 VA AC 400 Hz unlatching 165 VA AC 50/60 Hz unlatching 600 VA AC 400 Hz latching 650 VA AC 50/60 Hz latching","Protective treatment":"TH","Utilisation category":"AC-1 AC-3","Mechanical durability":"1000000 cycles","Associated fuse rating":"1200 A aM for power circuit 1200 A BS88 for power circuit 1200 A gG for power circuit","Maximum operating rate":"120 cyc/mn 40 °C","Rated breaking capacity":"10000 A at 220...440 V for power circuit 4000 A at 1000 V for power circuit 8000 A at 600...690 V for power circuit 9000 A at 500 V for power circuit","Product or component type":"Magnetic contactor","Irms rated making capacity":"10000 A for power circuit","Power dissipation per pole":"180 W AC-3 280 W AC-1","[Uc] control circuit voltage":"220 V AC 50...400 Hz 230 V AC 50...400 Hz","[Ui] rated insulation voltage":"Control circuit: 1000 V conforming to BS 775 Control circuit: 1000 V conforming to IEC 60158-1 Control circuit: 1000 V conforming to IEC 60947-4 Control circuit: 1500 V conforming to VDE 0110 group C","Control circuit voltage limits":"Latching: 0.85...1.1 Uc Unlatching: 0.85...1.1 Uc","Power Pole Contact Composition":"2 NO + 1 NC","[Ie] rated operational current":"1000 A (at 1250 A (at 800 A (at <40 °C) AC/DC AC-4 for power circuit","[Ue] rated operational voltage":"Power circuit: 1000 V AC Power circuit: 1000 V DC","Ambient air temperature for operation":"-15...70 °C","[Ith] conventional free air thermal current":"1250 A (at 40 °C) for power circuit"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/16af3960ee2de532d5fa2e1378cfaf8a.pdf","sourceUrl":"https://www.se.com/my/en/product/CR1BM33M21/bistable-contactor-cr1b-3-poles-1000-a-ac3-440v/"},"ai":{"faq":[{"question":"What are the key ratings that decide fit for this contactor?","answer":"The headline rating is 1000 A in AC-3 duty at 440 V — that's the motor-switching current. The Ith (conventional free-air thermal current) is 1250 A at 40 °C for resistive loads. Control voltage is 220-230 V AC, 50-400 Hz, latching type. Breaking capacity is 10000 A at 220-440 V."},{"question":"What is the closest alternative to the CR1BM33M21 in the TeSys F family?","answer":"Within the TeSys F range, the CR1BM33M21 is distinguished by its bistable latching coil and 1000 A AC-3 rating. A standard (non-latching) TeSys F contactor at a similar current rating would be a different order code — the latching coil is the deciding factor, not a pin-compatible swap."},{"question":"What compliance documentation is available for the CR1BM33M21?","answer":"The contactor is designed to conform to BS 775, IEC 60158-1, IEC 60947-4, and VDE 0110 group C for insulation voltage. Protective treatment is TH (tropicalized). Standard Schneider declarations (RoHS, REACH) apply to the TeSys F series."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/CR1BM33M21","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/CR1BM33M21 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}}