Siemens 6ES7422-1BL00-0AA0
Siemens 6ES7422-1BL00-0AA0
Siemens 6ES7422-1BL00-0AA0
Siemens 6ES7422-1BL00-0AA0
Siemens 6ES7422-1BL00-0AA0
Siemens 6ES7422-1BL00-0AA0
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6ES7422-1BL00-0AA0

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Siemens 6ES7422-1BL00-0AA0 is a SIMATIC S7-400 SM 422 digital output module with 32 isolated 24 V DC channels. It converts controller commands into protected switching outputs for industrial field loads.
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Technical specifications for 6ES7422-1BL00-0AA0

  • Manufacturer:
    Siemens
  • Part Number:
    6ES7422-1BL00-0AA0
  • Product Family:
    Siemens Simatic S7-400
  • Product Type:
    Digital Output Module
  • Stock:
    1
  • Rated load voltage:
    24 V DC
  • Permissible load-voltage range:
    20.4–28.8 V DC
  • Number of digital outputs:
    32
  • Rated output current per channel:
    0.5 A
  • Output isolation:
    Isolated in groups
  • Short-circuit protection:
    Clocked electronic protection
  • Typical protection threshold:
    0.7–1.5 A
  • Inductive shutdown limitation:
    -27 V
  • Maximum lamp load:
    5 W
  • Load resistance range:
    48 Ω–4 kΩ
  • Signal “1” output voltage:
    L+ minus 0.3 V maximum
  • Signal “0” residual current:
    0.3 mA maximum
  • Parallel output operation:
    Permitted within the same group
  • Maximum resistive switching frequency:
    100 Hz
  • Inductive switching frequency:
    2 Hz at 0.3 A; 0.5 Hz at 0.5 A
  • Backplane current consumption:
    200 mA maximum at 5 V DC
  • Load-supply current without load:
    30 mA maximum
  • Typical power loss:
    4 W
  • Isolation test voltage:
    500 V AC / 707 V DC
  • Weight:
    1.7064 lbs (0.774 kg)
  • Estimated shipping dimensions:
    23.3x30x3.8cm
  • Tariff Code:
    85389091
  • 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 Applications Diagnostics Integration Environment

Features:

  • Thirty-two isolated digital outputs support dense S7-400 field-control layouts.
  • Electronic short-circuit protection supervises each 24 V DC switching channel.
  • Grouped output architecture supports parallel operation within documented channel groups.
The current order configuration is the SM 422 assembly with 32 outputs rated for industrial 24 V DC circuits. Its official packaging data and order identity are retained for procurement matching.

Within an S7-400 station, the module translates controller commands into field switching for relays, contactors, indicator lamps and solenoid-operated devices. The isolated channel groups help separate load circuits from the PLC backplane.

Installation planning should confirm the front connector, L+ group wiring, permitted load frequency and cabinet heat calculation. Inductive loads require particular attention to the documented shutdown-energy limitation.

Availability is subject to phase-out stock and exact order-number verification.
Verified resources for Siemens 6ES7422-1BL00-0AA0:
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.
  • Controls banks of 24 V DC relays and contactors in process or machine automation panels.
  • Operates solenoid valves and signal lamps where many isolated outputs are required in one S7-400 slot.
  • Supports retrofit maintenance of installed S7-400 systems that retain the original SM 422 channel map.
  • Clocked electronic protection limits damage from output-circuit shorts while preserving diagnostic separation.
  • The typical protection response range is defined for channel-level fault handling and service checks.
  • Inductive shutdown voltage is limited to control stored load energy during de-energization.
  • The module mounts in the SIMATIC S7-400 rack and uses the matching front connector for field wiring.
  • Parallel outputs are permitted only within the same documented potential group.
  • L+ field power should be isolated and verified before a connector or module is removed.
  • The packaged order unit measures 23.30 × 30.00 × 3.80 cm and has a net mass of 0.774 kg.
  • Cabinet design must provide the environmental and clear-space conditions specified for the S7-400 station.
  • Field voltage must remain within 20.4–28.8 V DC for reliable switching operation.
Description
Siemens 6ES7422-1BL00-0AA0 is the SM 422 digital output module configured with 32 isolated 24 V DC channels for the SIMATIC S7-400 platform. Its channel density supports centralized switching of relays, contactors, indicators and solenoid-operated equipment while conserving rack space.

The module receives logic states from the S7-400 backplane and transfers them to field circuits through electronically protected outputs. Clocked short-circuit protection, grouped isolation and controlled inductive-energy limitation help maintain predictable behavior when loads or wiring conditions change.

System engineering should preserve the documented voltage range, output-group arrangement and front-connector wiring of the installed assembly. Replacement work also needs to account for the permitted switching frequency of the connected load, cabinet heat balance and the phase-out status of this exact order number.
Alternative Names
Siemens 6ES7422-1BL00-0AA0 6ES7422-1BL00-0AA0 SM 422 6ES74221BL000AA0 6ES 7422-1BL00-0AA0 6ES7 422-1BL00-0AA0 SIMATIC S7-400 SM 422 Siemens SM 422 32DO 24VDC SM422 32 x 24 V DC 0.5 A
Technical notes
Siemens 6ES7422-1BL00-0AA0 must be wired within the documented 20.4–28.8 V DC load range, with field-power grouping checked before replacement. Observe the lower permitted switching rate for inductive loads and isolate L+ before connector work.
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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.
Which S7-400 station arrangement accepts Siemens 6ES7422-1BL00-0AA0?
The module is engineered for SIMATIC S7-400 racks. Confirm the target rack, front connector and output-group wiring against the station hardware configuration before installation.
What must be matched when replacing Siemens 6ES7422-1BL00-0AA0?
Match the complete order number, channel count, load-voltage grouping and connector wiring. A different SM 422 variant is not automatically pin-compatible.
Where is Siemens 6ES7422-1BL00-0AA0 typically applied?
It is used where an S7-400 controller must switch numerous 24 V DC field devices such as relays, contactors, lamps and solenoid valves.
How should the phase-out status of Siemens 6ES7422-1BL00-0AA0 affect procurement?
Siemens lists the order number in phase-out from 2025-10-01. Buyers should confirm current availability, condition and migration planning before committing to a replacement schedule.
Which manual should be checked before wiring Siemens 6ES7422-1BL00-0AA0?
Use the model-specific datasheet together with the official S7-400 module data manual, especially the output-group, protection and connector sections.
What information helps Apter quote Siemens 6ES7422-1BL00-0AA0 accurately?
Provide the required quantity, destination, preferred condition and any rack or connector constraints so availability, delivery and compatibility support can be evaluated.

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