How to Select an Interface Relay for PLC Outputs
A step-by-step guide to matching PLC output type, coil voltage and current, contact rating, and socket style when selecting an interface relay.
The Siemens 6ED1052-1HB08-0BA2 is a LOGO! 8 logic module (LOGO! 24RCE) with a built-in display, 8 digital inputs, and 4 relay outputs rated 10 A resistive / 3 A inductive. Program memory holds up to 400 function blocks, and the module runs on 24 V AC or 24 V DC supply, mounting on a 35 mm DIN rail.
The relay outputs switch up to 10 A resistive directly, enough for a small motor, valve, or contactor coil without an interposing relay -- a transistor-output LOGO! variant would need that extra stage for the same load. 400-block memory and a 480-hour clock power reserve support standalone timer/counter logic that keeps running through short power interruptions. Marine, FM, and UL approvals extend the choice beyond a base LOGO! module into panels that require those specific certifications.
Standalone machine control, pump and lighting control in building/utility systems, and small automation cells where a full PLC is not justified. The 35 mm DIN-rail footprint and relay outputs fit directly into existing control cabinet wiring.
| with display | Yes |
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| Mounting | on 35 mm DIN rail, 4 spacing units wide |
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| Rated value (DC): 24 V DC | Yes |
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| permissible range, lower limit (DC) | 20.4 V |
| permissible range, upper limit (DC) | 28.8 V |
| Rated value (AC): 24 V AC | Yes |
| Line frequency: permissible range, lower limit | 47 Hz |
| Line frequency: permissible range, upper limit | 63 Hz |
| Part number | 6ED1052-1HB08-0BA2 |
|---|---|
| Brand | Siemens |
| Condition | New, factory sealed |
| Source | Siemens and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 4034106034443 |
| ETIM class | EC001417 |
| eCl@ss | 27242216 |
| Time switching clocks: Number | 400; Max. 400, function-specific |
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| Time switching clocks: Power reserve | 480 h |
| Number of digital inputs | 8 |
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| Number of digital outputs | 4; Relays |
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| Short-circuit protection | No; external fusing necessary |
| Relay outputs Switching capacity of contacts: with inductive load, max. | 3 A |
| Relay outputs Switching capacity of contacts: with resistive load, max. | 10 A |
| Emission of radio interference acc. to EN 55 011: Limit class B, for use in residential areas | Yes; Radio interference suppression according to EN55011, Limit Value Class B |
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| Siemens Eco Profile (SEP) | Siemens EcoTech |
|---|---|
| CE mark | Yes |
| CSA approval | Yes; covered by UL cert |
| UL approval | Yes |
| FM approval | Yes |
| developed in accordance with IEC 61131 | Yes |
| according to VDE 0631 | Yes |
| Marine approval | Yes |
| Ecological footprint: environmental product declaration Global warming potential | Yes |
| Ecological footprint: global warming potential, (total) [CO2 eq] | 51.5 kg |
| Ecological footprint: global warming potential, (during production) [CO2 eq] | 9.64 kg |
| Ecological footprint: global warming potential, (during operation) [CO2 eq] | 42.1 kg |
| Ecological footprint: global warming potential, (after end of life cycle) [CO2 eq] | -0.364 kg |
| Ambient temperature during operation: min. | -20 °C; No condensation |
|---|---|
| Ambient temperature during operation: max. | 55 °C |
| Ambient temperature during storage/transportation: min. | -40 °C |
| Ambient temperature during storage/transportation: max. | 70 °C |
| Altitude during operation relating to sea level: Ambient air temperature-barometric pressure-altitude | Tmin ... Tmax at 1 080 hPa ... 795 hPa (-1 000 m ... +2 000 m) |
| Width | 71.5 mm; 4 modular widths (MW) |
|---|---|
| Height | 90 mm |
| Depth | 60 mm |
| Net weight | 0.268 kg |
|---|---|
| Country of origin | CN |
| Shipping weight | 0.768 kg |
| Ships from | Türkiye |
| Dispatch | 13 Nov |
| Stock | In stock |
Source: manufacturer data · Last verified: 01 Nov 2026
No documents are on file for this part yet.
Ask us for the datasheetThe rated operational voltage of 6ED1052-1HB08-0BA2 is 24 V AC.
The tariff (HS) code on file for 6ED1052-1HB08-0BA2 is 85371091.
The EAN (GTIN) of 6ED1052-1HB08-0BA2 is 4034106034443.
6ED1052-1HB08-0BA2 ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival. Stock items are dispatched within 1–2 business days.
A step-by-step guide to matching PLC output type, coil voltage and current, contact rating, and socket style when selecting an interface relay.
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