{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SV8111-4KK","brand":"Siemens","brandSlug":"siemens","productSlug":"5SV8111-4KK","canonicalUrl":"https://aoctrl.com/siemens/5SV8111-4KK","factsUrl":"https://aoctrl.com/api/mcp/products/5SV8111-4KK","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SV8111-4KK modular residual current device, Type B, digital, 24 V DC, 30 mA rated residual current, 0–2000 Hz, LCD display, DIN rail mount.","salesMarkdown":"## Siemens 5SV8111-4KK — SENTRON modular RCD, Type B, 24 V DC The Siemens 5SV8111-4KK is a modular residual current device from the SENTRON family, designed as a digital Type B unit. It operates on a 24 V DC supply (19.2–28.8 V DC range) and is rated for a residual current of 30 mA across a frequency range of 0–2000 Hz, making it suitable for detecting all types of fault currents including smooth DC and high-frequency AC components. Type B detection covers AC, pulsating DC, smooth DC, and high-frequency residual currents up to 2000 Hz — essential for variable-speed drives, UPS systems, and other non-linear loads where standard Type A RCDs may not trip. The unit mounts on a DIN rail (fastening method: DIN rail) and occupies a compact footprint: 36 mm wide, 85 mm high, 64 mm deep. Screw-type terminals accept AWG 24–14 conductors with a stripped length of 8 mm. The 30 mA rated residual current is the standard threshold for personal protection against electric shock. The 0–2000 Hz frequency range covers fault currents from modern power electronics. The integrated LCD provides a real-time residual current display, and the error memory logs trip events — useful for fault-finding on intermittent earth faults. Password protection prevents unauthorized changes to the trip threshold or time delay settings. Time delay is adjustable from 0.06 s (initial value) up to 10 s (full-scale value), allowing selective coordination with downstream RCDs or upstream breakers. IP30 on the front face, IP20 at the terminals — adequate for enclosed distribution boards; not rated for washdown environments. External summation current transformers (CTs) are required — compatible types listed include 5SV8701-2KK, 5SV8701-2KP, 5SV8702-2KK, 5SV8702-2KP, 5SV8703-2KK, and 5SV8704-2KK. Maximum wire length from CT to the RCD is 10 m. Power loss is 6.5 VA maximum at the rated supply voltage — negligible thermal impact in a crowded enclosure.","metaTitle":"Siemens 5SV8111-4KK SENTRON modular RCD Type B, 24 V DC, 30","metaDescription":"Siemens SENTRON 5SV8111-4KK modular residual current device Type B, 24 V DC, 30 mA, 0-2000 Hz. Active production, DIN rail mount, LCD display. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"64 mm","Width":"36 mm","title":"5SV8111-4KK","Height":"85 mm","Maximum":"55 °C","Minimum":"-25 °C","description":"Modular residual current device Type B, 24 V DC,LCD, IDN 30 mA 1A, 0 2000 Hz","Error Memory":"Yes","Initial Value":"0.06 s","Stripped Length":"8 mm","lifecycle_stage":"current","Fastening Method":"DIN rail","Full-Scale Value":"10 s","at DC rated value":"24 V","Product Brand Name":"SENTRON","Degree Of Pollution":"3","Password Protection":"Yes","Product Designation":"modular residual current device","Overvoltage Category":"III","Design Of The Product":"Digital, type B","according to EN 61346-2":"F","Residual Current Display":"Yes","according to IEC 81346-2":"F","Material Of The Enclosure":"PC","at DC rated value maximum":"28.8 V","at DC rated value minimum":"19.2 V","power loss [V∙A] maximum":"6.5 VA","Type Of Electrical Connection":"screw-type terminals","protection class IP on the front":"IP30","Influence Of The Surrounding Temperature":"Max. 95% humidity","number of CO contacts for auxiliary contacts":"2","Switching Current Of Relay Contacts Rated Value":"5 A","Switching Voltage Of Relay Contacts Rated Value":"250 V","protection class IP at connection all terminals":"IP20","Wire Length To The Summation Current Transformer":"10 m","Type Of Connectable Summation Current Transformer":"5SV8701-2KK, 5SV8701-2KP, 5SV8702-2KK, 5SV8702-2KP, 5SV8703-2KK, 5SV8704-2KK","Type Of Voltage Of The Operating Voltage For Actuation":"DC","type of connectable conductor cross-sections at AWG cables for supply voltage":"AWG 24 ... AWG 14"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$228.60","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/9958660a4bd42fdef40f58816d8156f2.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=767569&mlfb=5SV8111-4KK"},"ai":{"faq":[{"question":"What is the closest functional second-source to 5SV8111-4KK?","answer":"The 5SY4301-7CV is a different class of device — a miniature circuit breaker (MCB), not an RCD. It cannot serve as a functional second-source for the 5SV8111-4KK. The 5SV8111-4KK is a Type B residual current device; the 5SY series are overcurrent protection devices. There is no direct drop-in alternate from the same brand."},{"question":"What is 5SV8111-4KK's listed depth?","answer":"The 5SV8111-4KK has a depth of 64 mm."},{"question":"What is 5SV8111-4KK's listed width?","answer":"The 5SV8111-4KK has a width of 36 mm."},{"question":"Will 5SV8111-4KK drop into a panel specified around 5SY4301-7CV without rewiring?","answer":"No. The 5SV8111-4KK is a Type B RCD requiring a 24 V DC supply and an external summation CT; the 5SY4301-7CV is a 3-pole MCB with a 50/60 Hz AC operating voltage. They serve completely different protection functions and are not form-fit-function interchangeable."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SV8111-4KK","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/5SV8111-4KK 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}}