{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6EP3437-8MB00-2CY0","brand":"Siemens","brandSlug":"siemens","productSlug":"6EP3437-8MB00-2CY0","canonicalUrl":"https://aoctrl.com/siemens/6EP3437-8MB00-2CY0","factsUrl":"https://aoctrl.com/api/mcp/products/6EP3437-8MB00-2CY0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SITOP PSU8600 series, 6EP3437-8MB00-2CY0, DIN rail power supply, 40 A rated output current, 4 outputs, UL/CSA listed.","salesMarkdown":"## 40 A, 4 outputs — the load-distribution decision The 6EP3437-8MB00-2CY0 is a 40 A rated DIN rail power supply from the SITOP PSU8600 family, delivering that current across 4 individually configurable outputs. Each output is rated 10 A, so you can split the total load across four circuits — useful when you need to isolate control logic from field actuators or feed separate sub-panels from a single supply. ## Derating and thermal budget Full 40 A output is available from 0 to 40 °C ambient. Above 50 °C, derate 2.5 % per K up to 60 °C max operating ambient. No derating when paired with the CNX8600 expansion module, provided total output load stays under 480 W. The unit is convection-cooled — no fan to fail, but the 50 mm clearance above and below the DIN rail is non-negotiable for airflow. Stacking modules tighter than that will push internal temperatures above the derating curve. ## Input range and feeder protection Input voltage range is 400 to 500 V AC, 3-phase, 47 to 63 Hz. Below 360 V and above 530 V the unit derates. Siemens specifies a 3-pole miniature circuit breaker 10-16 A, characteristic C, or a circuit breaker 3RV2011-1DA10 (setting 3 A) in the feeder. The I²t rating is 2.24 A²·s. cULus-Listed to UL 508 and CSA C22.2 No. 107.1 (file E197259), plus cCSAus to UL 60950-1 and CSA C22.2 No. 60950-1. Also carries CE and EAC marking. No ATEX or IECEx — this is a standard industrial supply, not for hazardous locations. Galvanic isolation provides SELV output per EN 60950-1 and EN 50178 — safe to touch and suitable for feeding 24 V DC control circuits without extra isolation transformers.","metaTitle":"Siemens 6EP3437-8MB00-2CY0 DIN Rail Power Supply, 40 A","metaDescription":"Siemens 6EP3437-8MB00-2CY0 DIN rail power supply, 40 A rated, 4 outputs. UL/CSA listed. Active production. Request a quote for current pricing and availability.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["DIN Rail Power Supplies"],"specifications":{"Top":"50 mm","ATEX":"No","Left":"0 mm","IECEx":"No","Right":"0 mm","title":"6EP3437-8MB00-2CY0","Bottom":"50 mm","C-Tick":"No","DNV GL":"Yes","Maximum":"3.5 mA","At Input":"L1, L2, L3, PE: Plug-in terminal with 1 screwed connection each for 0.2 ... 4 mm² single-wire / fine stranded","At Output":"1, 2, 3, 4: Two plug-in terminals (1, 2 and 3, 4) with 2 screwed connections each for 0.2 ... 2.5 mm²; 0 V: Plug-in terminal with 3 screwed connections for 0.2 ... 10 mm²","CE marking":"Yes","Per Output":"10 A","NEC Class 2":"No","Rated Range":"0 ... 40 A; +50 ... +60 °C: Derating 2.5%/K; no derating in connection with expansion module CNX8600 and total load of the outputs at the basic device max. 480 W","Rated Value":"40 A","UL approval":"Yes; cULus-Listed (UL 508, CSA C22.2 No. 107.1), File E197259; cCSAus (CSA C22.2 No. 60950-1, UL 60950-1)","description":"SITOP PSU8600 3AC 40 A/4x10 A PN stabilized power supply input: 400-500 V 3 AC output: 24 V DC/40 A/4x 10 A with PN/IE connection web server integrated OPC UA server integrated *Ex approval no longer available*","CSA approval":"Yes; cULus-Listed (UL 508, CSA C22.2 No. 107.1), File E197259; cCSAus (CSA C22.2 No. 60950-1, UL 60950-1)","EAC approval":"Yes","1 Rated Value":"50 Hz","2 Rated Value":"60 Hz","In The Feeder":"Required: 3-pole connected miniature circuit breaker 10 ... 16 A characteristic C or circuit breaker 3RV2011-1DA10 (setting 3 A) or 3RV2711-1DD10 (UL 489)","Initial Value":"320 V; Derating 320 … 360 and 530 … 575 V","During Storage":"-40 ... +85 °C","Line Frequency":"47 ... 63 Hz","MTBF at 40 °C":"207 612 h","FM registration":"No","lifecycle_stage":"current","During Operation":"-25 ... +60 °C; with natural convection","During Transport":"-40 ... +85 °C","Fastening Method":"Snaps onto DIN rail EN 60715 35x15","Full-Scale Value":"575 V","I2t value maximum":"2.24 A²·s","Number Of Outputs":"4","Other Information":"Specifications at rated input voltage and ambient temperature +25 °C (unless otherwise specified)","PROFINET protocol":"Yes","ULhazloc approval":"No","Galvanic Isolation":"Safety extra-low output voltage Uout acc. to EN 60950-1 and EN 50178","Maximum Rated Value":"500 V","Minimum Rated Value":"400 V","protection class IP":"IP20","Bridging Of Equipment":"No","Efficiency In Percent":"93 %","For Signaling Contact":"11, 12, 14 (alarm signal): Plug-in terminal (together with Reset) with 1 screwed connection each for 0.2 ... 1.5 mm²","Of The Excess Current":"Ia >1.0…<1.5 x Ia threshold permissible for 5 s; Ia limit (= 1.5 x Ia threshold) permissible for 200 ms","Remote Reset Function":"Non-electrically isolated 24 V input (signal level \"high\" at > 15 V)","Shipbuilding Approval":"ABS, DNV GL","Depth Of The Enclosure":"150 mm","Electrical Accessories":"Expansion modules CNX8600, buffer modules BUF8600, module UPS8600","For Auxiliary Contacts":"RST (Reset): Plug-in terminal (together with alarm signal) with 1 screwed connection for 0.2 ... 1.5 mm²","Mechanical Accessories":"Device identification label 20 mm × 7 mm, TI-grey 3RT2900-1SB20","Response Delay Maximum":"1 s; Without on-delay of the outputs","Width Of The Enclosure":"125 mm","At Output 1 Rated Value":"10 A","At Output 2 Rated Value":"10 A","At Output 3 Rated Value":"10 A","At Output 4 Rated Value":"10 A","Design Of The Interface":"Ethernet/PROFINET","Height Of The Enclosure":"125 mm","Voltage Curve At Output":"Controlled, isolated DC voltage","For Emitted Interference":"EN 55022 Class B","Nippon Kaiji Kyokai (NK)":"No","Type Of Signal At Output":"Relay contact (changeover contact, contact current capacity DC 60 V/0.3 A) for \"Operating state OK\"","Adjustable Output Voltage":"4 ... 28 V","For Interference Immunity":"EN 61000-6-2","Of The Current Limitation":"Ia limit (= 1.5 x Ia threshold) permissible for 5 s, afterwards Ia threshold continuous","Type Of Outputs Connection":"Simultaneous connecting-in of all outputs after device booting or delay time of 25 ms, 100 ms or \"load-optimized\" for sequential cutting-in of the outputs via DIP switches can be set","Removable Terminal At Input":"Yes","cCSAus, Class 1, Division 2":"No","Removable Terminal At Output":"Yes","at rated input voltage 400 V":"2.75 A","at rated input voltage 500 V":"2.2 A","protocol is supported OPC UA":"Yes","Parallel Switching Of Outputs":"Yes; Parallel circuit Output 1 with 2 or Output 3 with 4 can be selected via DIP switch","Supplied Active Power Typical":"960 W","Type Of Electrical Connection":"Plug-in terminals with screwed connection","at output 1 at DC rated value":"24 V","at output 2 at DC rated value":"24 V","at output 3 at DC rated value":"24 V","at output 4 at DC rated value":"24 V","For Mains Harmonics Limitation":"EN 61000-3-2","Type Of Output Voltage Setting":"via potentiometer or IE/PN interface; Derating > 24 V: 4%/V; max. 240 W per output, max. 960 W overall system","Type Of Response Value Setting":"via potentiometer or IE/PN interface","Design Of Input Wide Range Input":"Yes","During NO-Load Operation Maximum":"20 W","Type Of The Power Supply Network":"3-phase AC","output voltage at DC rated value":"24 V","Lloyds Register of Shipping (LRS)":"No","Design Of Short-Circuit Protection":"electronic overload cut-off; optionally constant current operation can be selected for Output 4 via DIP switches","On Slow Fluctuation Of Ohm Loading":"0.1 %","Operating Resource Protection Class":"Class I","Design Of The Overvoltage Protection":"max. 35 V (max. 500 ms)","Display Version For Normal Operation":"3-color LED for operating state device; LED for operating mode manual/remote; 4 LEDs for communication PROFINET; 3-color LED per output for operating state output; LED green for parallel operation Output 1 and 2 / 3 and 4","On Slow Fluctuation Of Input Voltage":"0.2 %","Design Of The Interface For Communication":"PROFINET/Ethernet: two RJ45 sockets (2-port switch)","French marine classification society (BV)":"No","Relative Overall Tolerance Of The Voltage":"3 %","Operating Condition Of The Mains Buffering":"at Vin = 400 V; Prioritized supply Output 1 at power failure can be selected via DIP switch","Product Function Output Voltage Adjustable":"Yes","Property Of The Output Short-Circuit Proof":"Yes","Suitability For Interaction Modular System":"Yes","Galvanic Isolation Between Input And Output":"Yes","American Bureau of Shipping Europe Ltd. (ABS)":"Yes","environmental category according to IEC 60721":"Climate class 3K3, 5 … 95% no condensation","Design Of The Reset Device/Resetting Mechanism":"via sensor per output or IE/PN interface","Display Version For Overload And Short Circuit":"3-color LED for operating state device; 3-color LED per output for operating state output","Behavior Of The Output Voltage When Switching On":"No overshoot of Vout (soft start)","Overcurrent Overload Capability In Normal Operation":"Total system overloadable 150% Ia rated to 5 s/min","current limitation of inrush current at 25 °C maximum":"14 A","Product Feature Of The Enclosure Housing Can Be Lined Up":"Yes","At Rated Output Voltage For Rated Value Of The Output Current Typical":"72 W","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"0.5 ... 10 A","Buffering Time For Rated Value Of The Output Current In The Event Of Power Failure Minimum":"15 ms","Relative Control Precision Of The Output Voltage With Rapid Fluctuation Of The Input Voltage By +/- 15% Typical":"0.1 %"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$582.93 – $1,022.00","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/bf383fc437904e693ba1786c54ba30b1.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=240861&mlfb=6EP3437-8MB00-2CY0"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6EP3437-8MB00-2CY0","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/6EP3437-8MB00-2CY0 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}}