Building Automation & Machine Control Solution – Siemens 6ED1055-1NB10-0BA0 | LOGO! Expansion Series
Where This Product Is Used
The Siemens 6ED1055-1NB10-0BA0 is a digital expansion module designed to extend the I/O capacity of the Siemens LOGO! logic module family. It is widely deployed across industries where compact, reliable discrete control is required:
- Building Automation: HVAC control, lighting management, access control panels, and elevator sequencing.
- Industrial Machinery: Conveyor interlocking, pump station control, packaging line sequencing, and press safety circuits.
- Water & Wastewater: Pump duty/standby alternation, level monitoring, and valve actuation control.
- Energy & Utilities: Generator auto-transfer switching, load shedding logic, and substation auxiliary control.
- OEM Equipment: Compact machine builders requiring additional discrete I/O without upgrading the base LOGO! unit.
Technical Specifications
| Part Number | 6ED1055-1NB10-0BA0 |
| Brand | Siemens |
| Series | LOGO! Expansion Module |
| Module Type | Digital Expansion (DM8 24) |
| Digital Inputs | 8 × 24 VDC |
| Digital Outputs | 4 × Relay (NO contact) |
| Supply Voltage | 24 VDC |
| Input Voltage Range | 20.4 – 28.8 VDC |
| Output Type | Relay, max. 5 A / 250 VAC |
| Mounting | DIN Rail (35 mm) |
| Dimensions (W×H×D) | 72 × 90 × 55 mm |
| Weight | approx. 220 g |
| Operating Temperature | 0 °C to +55 °C |
| Storage Temperature | −40 °C to +70 °C |
| Protection Class | IP20 |
| Compatible Base Units | LOGO! 8 (0BA8 series), LOGO! 7 (0BA7 series) |
| Connection Method | Plug-in connector via LOGO! expansion interface |
Why Engineers Specify This Model
- Plug-and-Play Expansion: Connects directly to the LOGO! base unit via the integrated expansion interface — no additional wiring harness required.
- Relay Outputs for Mixed Loads: 4 relay outputs handle both AC and DC loads up to 5 A, suitable for solenoids, contactors, and indicator lamps.
- 8 Discrete Inputs: Sufficient for most auxiliary sensing tasks — limit switches, proximity sensors, pushbuttons, and float switches.
- Compact DIN Rail Form Factor: 72 mm wide, fits standard control cabinet layouts without consuming excessive panel space.
- Proven LOGO! Ecosystem: Fully supported by LOGO! Soft Comfort programming software with no additional licensing required for expansion modules.
- Wide Operating Temperature: Rated to +55 °C continuous, suitable for non-air-conditioned enclosures in industrial environments.
Complete System Bill of Materials
For a complete LOGO!-based control system using the 6ED1055-1NB10-0BA0, engineers typically specify:
- Base Logic Module: Siemens LOGO! 8 (e.g., 6ED1052-1MD08-0BA1 for 24VDC, 12 I/8 O)
- This Expansion Module: 6ED1055-1NB10-0BA0 (8 DI / 4 DO, 24VDC)
- Power Supply: Siemens LOGO! Power 24V (e.g., 6EP1331-1SH03) or equivalent SITOP PSU
- Communication Module (optional): LOGO! CMR2020 for remote monitoring via GSM/LTE
- HMI (optional): LOGO! TD (Text Display) 6ED1055-4MH08-0BA0
- DIN Rail & Enclosure: 35 mm DIN rail, IP65 polycarbonate enclosure (sized per I/O count)
- Terminal Blocks: Weidmüller or Phoenix Contact 2.5 mm² screw terminals
Compliance & Industry Standards
- CE Marked – EU Low Voltage Directive & EMC Directive compliant
- UL Listed – UL 508 (Industrial Control Equipment)
- IEC 61131-2 – Programmable Controllers: Equipment Requirements & Tests
- RoHS Compliant – Restriction of Hazardous Substances Directive 2011/65/EU
- ATEX: Not rated for hazardous area use; install in suitable enclosure per local regulations
Quality Assurance & Sourcing
All Siemens products listed on Konmask.com are sourced through verified industrial distribution channels. Each unit undergoes the following before dispatch:
- Visual inspection for physical damage, label integrity, and seal condition
- Verification of part number and date code against Siemens product documentation
- Packaging inspection to confirm factory-sealed or properly repackaged condition
- Traceability documentation available upon request for MRO and OEM procurement teams
We do not list counterfeit, refurbished-as-new, or unverified grey-market stock. If you require a Certificate of Conformance (CoC) or test report, contact our team before ordering.
How to Source This Part
- In Stock: Add to cart and proceed to checkout. We accept T/T bank transfer, PayPal, and major credit cards.
- Bulk / Project Quantity: Contact us for volume pricing and lead time confirmation — email support@konmask.com with your BOM.
- Urgent Requirement: Call or WhatsApp +0086 19859288691 for same-day quotation and expedited shipping options.
- OEM / System Integrator: We support blanket orders and scheduled releases. Ask about our SI partner program.
Application-Specific FAQ
Q: How many 6ED1055-1NB10-0BA0 modules can I connect to one LOGO! base unit?
A: Up to 24 additional I/O points can be added via expansion modules. Depending on the base unit, you can connect up to 3 expansion modules in series.
Q: Can I use this module with LOGO! 0BA6 (older generation)?
A: No. The 6ED1055-1NB10-0BA0 is compatible with LOGO! 0BA7 and 0BA8 series only. For 0BA6, use the 6ED1055-1NB00-0BA0.
Q: Are the relay outputs suitable for motor starter control?
A: The relay outputs are rated 5 A / 250 VAC (resistive). For motor starters, use the relay output to drive a contactor coil rather than switching the motor load directly.
Q: Does this module require separate 24VDC power?
A: Yes. The module requires its own 24VDC supply connected to its terminals; it does not draw power from the LOGO! base unit’s internal bus.
Q: Is LOGO! Soft Comfort required to configure this expansion module?
A: The expansion module is automatically recognized by the LOGO! base unit. No separate configuration is needed — inputs and outputs are mapped sequentially after the base unit’s I/O.
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