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        6ES5458-4UC11

        / 4.9
        1001 reviews ｜ Need a Specific Revision?
        Siemens 6ES5458-4UC11 is a SIMATIC S5 relay-output module with sixteen contacts divided into two isolated groups of eight. Its 20–30 V DC relay supply supports resistive loads up to the documented contact limits.
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        Warranty Policy
        We provide 1 year warranty for all remaining parts.
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        Return Notice
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
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        Technical specifications for 6ES5458-4UC11

        • Manufacturer:
          Siemens
        • Part Number:
          6ES5458-4UC11
        • Product Family:
          Siemens Simatic S5
        • Product Type:
          Relay Digital Output Module
        • Stock:
          1
        • Module designation:
          458
        • I/O function:
          relay digital output
        • Channel capacity:
          16 outputs in two groups of eight
        • Field electrical class:
          24 V DC relay supply
        • Isolation:
          Two isolated groups
        • System bus current:
          5 V, 120 mA typical
        • Power dissipation:
          6.6 W
        • Permissible unshielded line:
          As documented in the Siemens system manual
        • Enable circuit:
          Front enable input/jumper arrangement
        • Host systems:
          SIMATIC S5-135U / S5-155U
        • Relay supply range:
          20–30 V DC
        • Resistive contact rating:
          5 A at 250 VAC or 30 VDC
        • Group maximum:
          8 A
        • Mechanical contact life:
          Approx. 10^7 cycles
        • Weight:
          1.528 lbs (0.693 kg)
        • Estimated shipping dimensions:
          26.2 x 22.0 x 4.7 cm
        • Tariff Code:
          8537101190
        • 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 Safety & Compliance Performance Installation

        Features:

        • Arranges sixteen relay contacts as two isolated groups of eight.
        • Uses a documented 20–30 V DC operating supply for the relays.
        • Supports resistive duty up to 5 A per contact within the group limit.
        The 4UC11 code denotes the two-group 458 execution and should not be confused with the individually isolated 4UA12 version.

        Grouped relays allow the controller to switch field loads while organizing the conductors around two separate reference banks.

        Add the simultaneous current of each bank, verify the 20–30 V supply and inspect suppression on inductive loads before transferring the front wiring.

        6ES5458-4UC11 is matched by its two-group contact architecture and relay-supply range.
        Verified resources for Siemens 6ES5458-4UC11: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.
        • Operate grouped contactor coils and annunciation circuits from an S5 rack.
        • Separate two banks of field loads while using one sixteen-output module.
        • Replace an ageing relay board whose simultaneous load has been documented.
        • Keep each switched circuit within the voltage and duty stated for its load category.
        • Preserve isolation between the two output groups in the panel wiring.
        • Use suppression on inductive loads to limit contact arcing and electrical disturbance.
        • Resistive contacts are rated up to 5 A at 250 V AC or 30 V DC under stated conditions.
        • The combined current of each eight-output bank must not exceed 8 A.
        • Mechanical endurance is approximately 10^7 operations before load-dependent derating.
        • Supply the relay mechanisms from a stable 20–30 V DC source.
        • Map every conductor to its correct isolated group before moving the front connector.
        • Coordinate the enable input and rack address with the existing S5 program.
        Description
        6ES5458-4UC11 is the grouped-contact version of the S5 458 relay-output family. Sixteen outputs are divided into two isolated banks of eight, allowing the module to organize separate field groups while the S5-135U or S5-155U process image controls all contact states from one 20 mm board.

        The relay operating supply accepts 20–30 V DC. For resistive duty the documented contact capacity reaches 5 A at 250 V AC or 30 V DC, but each eight-output bank is restricted to an 8 A aggregate, so a channel-by-channel rating alone cannot be used to size the group.

        Mechanical life is approximately 10^7 cycles and will be reduced by switching inductive loads or frequent high-current operations. Replacement planning should therefore include the actual duty cycle, suppression method, group loading and supply wiring, followed by a staged test that proves both banks without exceeding the shared current limit.
        Alternative Names
        6ES5458-4UC11 6ES5458 4UC11 6ES54584UC11 Siemens 6ES5458-4UC11 6ES5458-4UC11 SIMATIC S5-135U/155U Digital I/O Siemens Relay Digital Output Module 6ES5458-4UC11 Relay Digital Output Module
        Technical notes
        6ES5458-4UC11 permits high resistive contact ratings but only 8 A total per eight-channel group; calculate simultaneous loading before enabling multiple outputs.
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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.
        VIEW ALL FAQS
        How is Siemens 6ES5458-4UC11 divided electrically?
        Its sixteen relay outputs form two isolated groups, each containing eight contacts.
        What relay-supply tolerance applies to Siemens 6ES5458-4UC11?
        The operating supply is documented from 20 to 30 V DC.
        Which resistive load can one Siemens 6ES5458-4UC11 contact switch?
        The stated capacity reaches 5 A at 250 V AC or 30 V DC when all applicable group and duty limits are observed.
        Why is 8 A important for Siemens 6ES5458-4UC11?
        It is the maximum combined current for an eight-output group, regardless of the higher individual resistive-contact figure.
        How many mechanical operations are associated with Siemens 6ES5458-4UC11?
        The documentation gives an approximate mechanical contact life of 10^7 cycles; electrical life depends on the load.
        What distinguishes Siemens 6ES5458-4UC11 from 6ES5458-4UA12?
        The UC11 module uses two isolated groups of eight and a different high-current contact arrangement rather than sixteen individually isolated outputs.

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