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PRODUCT DESCRIPTION
Four relay channels for line-voltage LOGO! expansion
Siemens 6ED1055-1FB00-0BA2 is a LOGO! DM8 230R expansion module with four digital inputs and four relay outputs. It provides additional switching points for a compatible LOGO! 8 system supplied from nominal 115/230 V AC or DC.
The module measures 35.5 × 90 × 58 mm and occupies two module widths on a 35 mm DIN rail. Its relay contacts are rated up to 5 A for resistive loads and 3 A for inductive loads; use external circuit protection and evaluate load inrush before connection.
The module measures 35.5 × 90 × 58 mm and occupies two module widths on a 35 mm DIN rail. Its relay contacts are rated up to 5 A for resistive loads and 3 A for inductive loads; use external circuit protection and evaluate load inrush before connection.
BEFORE YOU BUY
Check the line-voltage wiring and protected loads
ACTUAL APPLICATIONS
Where 6ED1055-1FB00-0BA2 fits in compact automation
Siemens LOGO! application examples inform these system-level uses. The expansion module adds I/O; the base program, wiring and connected loads require separate validation.
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01 · DISPLAY LIGHTING
Switching groups for shop-window lighting
Siemens describes shop-window lighting as a LOGO! application. The four additional relay contacts can serve separately protected lighting groups when driver inrush and switching duty have been assessed. -
02 · SCHEDULED SIGNALLING
Additional circuits for a bell system
The LOGO! bell-system example uses programmed timing for signalling. A DM8 230R can add compatible signalling circuits, with the schedule executed by the base controller and the loads kept within contact ratings. -
03 · OUTDOOR LIGHTING
Timed switching for external lighting circuits
For the outdoor-lighting application listed by Siemens, this module can provide extra switching contacts inside a suitable enclosure. Weather exposure, load protection and the control schedule require installation-level design.
Technical specifications for 6ED1055-1FB00-0BA2
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Product Model6ED1055-1FB00-0BA2
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Product ParametersLOGO! DM8 230R Expansion Module
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In stock1 unit
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ManufacturerSiemens
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Supply voltage115/230 V AC/DC; 85–265 V AC / 100–253 V DC
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Digital inputs4 non-isolated line-voltage inputs
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Input thresholdsLow: below 40 V AC / 30 V DC; high: above 79 V AC/DC
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Input currentHigh typ. 0.13 mA; low max. 0.05 mA AC / 0.06 mA DC
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Input delayRising max. 40 ms; falling max. 75 ms
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Digital outputs4 relays; max. 5 A resistive / 3 A inductive
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Output protectionExternal short-circuit protection required
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Switching frequencyMax. 2 Hz resistive; 0.5 Hz inductive
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Mounting35 mm DIN rail; two module widths
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Operating temperature−20 to +55 °C; no condensation
View all additional
Alternative Names
6ED1055-1FB00-0BA2
LOGO! DM8 230R
Siemens LOGO! 4DI 4DO Expansion
SYSTEM & REPLACEMENT CHECK
Information needed before ordering
Three direct checks to secure your system integration and minimize ordering risks.
Information
System integration
Replacement check
Manuals & support
LOGO! 8 DIGITAL EXPANSION
Add relay contacts to the LOGO! 230 V installation
6ED1055-1FB00-0BA2 connects to the side expansion interface of a compatible LOGO! 8 base. Its four inputs use line-voltage thresholds; they are not interchangeable with the low-voltage DC inputs of a DM8 24.
The supply accepts 85–265 V AC or 100–253 V DC. Siemens requires the 230 V base and digital expansion to use the same supply type and matching phase or polarity as applicable.
All four DM8 230R inputs must be connected to the same phase. Each relay load needs appropriately selected external protection, with a separate assessment of capacitive or LED-driver starting current.
Features:
- Exact Siemens order code: 6ED1055-1FB00-0BA2
- LOGO! DM8 230R with 4 DI and 4 relay outputs
- Keep the four input circuits on one phase
The Siemens 6ED1055-1FB00-0BA2 LOGO! DM8 230R requires its supply, terminal assignment and base-module arrangement to be checked before system integration and commissioning.
INTERCHANGEABILITY
Verify the complete replacement identity before commissioning
Select the exact 6ED1055-1FB00-0BA2 article for a four-input/four-relay-output DM8 230R replacement. Check the original circuit drawings before disconnecting the module.
Do not copy a LOGO! base-module contact rating onto the expansion. The DM8 230R relay rating is 5 A resistive or 3 A inductive, and load suitability depends on switching duty and inrush.
Isolate both module and load supplies before removal. Check terminal condition, external protection and field-wire identification, then test the restored sequence under the approved commissioning procedure.
Features:
- Match the complete 6ED1055-1FB00-0BA2 order code
- Input phase and supply-type compatibility
- Relay load category and switching inrush
The Siemens 6ED1055-1FB00-0BA2 LOGO! DM8 230R requires replacement verification of electrical ratings, expansion order, field wiring and the base-module project before commissioning.
DOCUMENTATION STATUS
Browse the Manuals, Datasheets, Official Documents, Links
Important Notice: Selected official pages are included in the Amikon document packages. Accessories, cables, software and certificates are supplied only when listed in the quotation.
Features:
- Available Siemens document references are confirmed before order
- Software licensing and project backups remain the customer's responsibility
- Accessories are supplied only when listed in the quotation
Documentation for the Siemens 6ED1055-1FB00-0BA2 LOGO! DM8 230R documents must match the complete article number and installed expansion arrangement; confirm manual availability in the written quotation.
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Important notice
Manuals, software, firmware, cables, calibration data and accessories are included only when listed in the quotation. AMIKON is an independent supplier and is not affiliated with or authorised by the manufacturer.
This content has been produced using multiple sources. Takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
BUYER INFORMATION
Commercial terms without hidden steps
Your written quote confirms the product identity, price, availability, lead time, warranty and shipping terms before payment.
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Shipping & delivery
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DispatchEligible stock: same / next day
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CarriersDHL, FedEx or UPS
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Ship fromXiamen, China
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Packed size7.40 × 9.50 × 5.70 cm
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Shipping weightApprox. 0.13 kg
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Payment & customs
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PaymentBank transfer (T/T)
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CurrenciesUSD · EUR · GBP · RMB
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Credit cardsNot accepted
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HS reference8538900000
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OriginChina
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Warranty & returns
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Warranty12 months from AMIKON
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InspectionLabel, condition and packing checks
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ReturnsPrior RMA authorisation required
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CompatibilityConfirm before order
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OEM warrantyDoes not apply
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Your written quote confirms the product identity, price, availability, lead time, warranty and shipping terms before payment.
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Part checked
Full suffix recorded -
Condition checked
Label and appearance -
Packing checked
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Tracking supplied
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Sandy Lin
Dedicated account manager · 15+ years
FREQUENTLY ASKED QUESTIONS
Questions buyers ask about 6ED1055-1FB00-0BA2
Direct answers about identity, compatibility, stock, warranty, payment and shipping.
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May the four DM8 230R inputs be supplied from different AC phases?
No. Siemens requires all inputs of the DM8 230R to use the same phase. Verify the field wiring and common supply arrangement before energizing the module. -
Is 115 V AC operation supported, or is this only a 230 V module?
115 V AC is supported. The documented AC operating range is 85–265 V at 47–63 Hz; the attached base and expansion must also meet the required supply-type and phase relationship. -
Can an MRO team apply the 10 A rating of a relay-output LOGO! base to this DM8?
No. The DM8 230R contacts are rated up to 5 A for resistive loads, not the 10 A figure found on certain base modules. Check the expansion rating and actual load category independently. -
Why can a low-wattage LED lighting circuit still damage a relay contact?
LED power supplies can draw a high starting current despite a low steady-state load. Siemens warns about relay-contact damage from this inrush; assess the driver data and use suitable limiting or external switching equipment. -
Will a 24 V sensor produce a valid high signal at these inputs?
No. The DM8 230R high-state threshold is above 79 V AC/DC. Use an interface appropriate to the sensor and the line-voltage input circuit; do not treat it as a DM8 24 input. -
Can a technician unplug the expansion while the controller remains energized?
Do not carry out live replacement. Siemens installation guidance requires isolation before installing or removing modules; load supplies may remain hazardous even when the logic supply is off. -
Does IP20 allow the expansion to be installed outdoors without a cabinet?
No. IP20 is not weatherproof. Provide a suitable enclosure and comply with the manual mounting conditions, including the required clearances for ventilation and access. -
What should an urgent procurement inspection check on a used relay-output unit?
Confirm the exact article and four-input/four-output arrangement, then request clear terminal and label photographs plus the stated condition and any available functional-test record. Visual inspection alone cannot establish remaining relay-contact life.
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