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6ES7142-1BD40-0XA0

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Siemens 6ES7142-1BD40-0XA0 is an ET 200X EM 142 expansion module with four isolated 24 V DC, 2 A digital outputs on five-pin M12 connections.
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Technical specifications for 6ES7142-1BD40-0XA0

  • Manufacturer:
    Siemens
  • Part Number:
    6ES7142-1BD40-0XA0
  • Product Family:
    Siemens Simatic DP
  • Product Type:
    ET 200X EM 142 4-Channel 24 V DC Digital Output Module
  • Stock:
    1
  • Digital Outputs:
    4
  • Output Rating:
    24 V DC, 2 A per channel
  • Field Connection:
    Five-pin M12
  • Permissible Load Supply:
    20.4 to 28.8 V DC
  • Backplane Current:
    Maximum 28.5 mA at 5 V DC
  • No-Load 2L+ Current:
    12 mA
  • Typical Power Loss:
    2.1 W
  • Short-Circuit Threshold:
    Approximately 3 A
  • Maximum Lamp Load:
    10 W
  • Signal 0 Residual Current:
    Maximum 0.5 mA
  • Resistive Switching Rate:
    Maximum 100 Hz
  • Inductive DC-13 Switching Rate:
    Maximum 0.5 Hz
  • Lamp Switching Rate:
    Maximum 1 Hz
  • Group Current to 20 °C:
    Maximum 6 A
  • Group Current to 55 °C:
    Maximum 4 A
  • Maximum Unshielded Cable:
    30 m
  • Isolation:
    Backplane isolated from output circuitry; channels not isolated from one another
  • Protection Rating:
    IP65
  • Weight:
    0.639 lbs (0.29 kg)
  • Estimated shipping dimensions:
    9.8x11.6x6.6cm
  • Tariff Code:
    8538909190
  • Country of origin:
    Germany
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Output Loads Load Supply Protection M12 Wiring

Features:

  • Four 24 V DC output channels switch up to 2 A each through M12 connectors.
  • The ET 200X backplane carries control data while 2L+ supplies the field loads.
  • Electronic short-circuit protection and IP65 sealing support distributed installation.
Siemens 6ES7142-1BD40-0XA0 expands an ET 200X station with four protected output channels.

The 2L+ path on 6ES7142-1BD40-0XA0 supplies field loads separately from the backplane electronics.

Load type and group current determine the switching limit applied to 6ES7142-1BD40-0XA0.

Verify the complete Siemens 6ES7142-1BD40-0XA0 ET 200X EM 142 4-Channel Digital Output Module article number and interface configuration before matching the installed unit.
Siemens 6ES7142-1BD40-0XA0 ET 200X EM 142 4-Channel Digital Output Module Manuals,Datasheets,Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

Channel Load Relationships

  • Resistive loads: The output can switch resistive circuits at the highest documented repetition rate.
  • Inductive loads: DC-13 loads use the lower switching frequency and the required suppression path.
  • Lamp loads: Lamp inrush and the 10 W channel limit govern the permitted lighting load.
  • Channel rating: Each connected circuit remains inside the 24 V DC, 2 A output boundary.

Backplane and 2L+ Power Paths

  • Module electronics: The ET 200X backplane provides logic power and output command data.
  • Field supply: The 2L+ connection delivers 24 V DC to the output load stage.
  • Group current: All four channel currents contribute to the temperature-dependent module total.
  • Fault separation: Backplane status and load-supply wiring are checked separately when outputs remain inactive.

Short-Circuit and Isolation Behavior

  • Electronic trip: A channel short circuit reaches the documented electronic protection threshold.
  • Residual current: An output in signal state 0 remains below the specified residual-current limit.
  • Backplane boundary: Output circuitry is electrically separated from the station backplane.
  • Channel group: The four outputs are not isolated from one another and share the load potential.

Field Connection and Sealing

  • Connector type: Five-pin M12 connectors carry the output and load-potential conductors.
  • Cable limit: Unshielded field wiring remains within the documented maximum length.
  • Pin assignment: Output channel, 2L+, and reference conductors must follow the exact connector map.
  • Enclosure: Correctly tightened connectors and caps retain the IP65 field rating.
Description
Siemens 6ES7142-1BD40-0XA0 is a SIMATIC ET 200X EM 142 expansion module that adds four 24 V DC digital outputs to an ET 200X station. The backplane supplies the module electronics, while the 2L+ load path provides field power to the output channels.

Each output of 6ES7142-1BD40-0XA0 switches a load through a five-pin M12 field connection. The four channels are electronically protected against short circuit, and their combined current must remain within the temperature-dependent group limit.

The output stage in 6ES7142-1BD40-0XA0 supports resistive, inductive, and lamp loads at different switching frequencies. Correct selection of the connected load and suppression circuit keeps the channel within its documented 2 A rating and switching boundary.

Mounted in the ET 200X field assembly, 6ES7142-1BD40-0XA0 uses the station backplane for control data and retains IP65 protection through its sealed module and connectors. The channel group is isolated from the backplane but not from one another.
Alternative Names
6ES71421BD400XA0 6ES7142 1BD40 0XA0 6ES7 142 1BD40 0XA0 Siemens 6ES7142-1BD40-0XA0 6ES7142-1BD40-0XA0 EM 142 6ES7142-1BD40-0XA0 Output Module 6ES7142-1BD4O-OXAO 6E57142-1BD40-0XA0
Technical notes
The four outputs of Siemens 6ES7142-1BD40-0XA0 share one load-potential group, so total current and temperature limits apply to the module together.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Why does one output on 6ES7142-1BD40-0XA0 remain off while the station is online?
Check the 6ES7142-1BD40-0XA0 2L+ supply, channel command, M12 pinout, load continuity, group current, and short-circuit protection state.
What can trip the electronic protection of 6ES7142-1BD40-0XA0?
Inspect the 6ES7142-1BD40-0XA0 load cable, actuator, connector moisture, polarity, and inrush current for a short circuit or overload.
Why must all four loads be considered together on 6ES7142-1BD40-0XA0?
The 6ES7142-1BD40-0XA0 outputs share one load-potential group, so the combined channel current must remain within the ambient-temperature limit.
Can 6ES7142-1BD40-0XA0 switch an inductive valve at the resistive-load frequency?
No. Configure and operate the 6ES7142-1BD40-0XA0 inductive circuit within the documented DC-13 switching rate and use the specified suppression.
Why can 6ES7142-1BD40-0XA0 lose outputs without losing backplane communication?
The 6ES7142-1BD40-0XA0 logic and field-load paths are separate, so missing 2L+ can disable loads while the ET 200X backplane remains active.
How is IP65 retained after replacing 6ES7142-1BD40-0XA0?
Seat 6ES7142-1BD40-0XA0 correctly, tighten every M12 connection to the specified condition, and seal each unused connector with the approved cap.