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        ABB 424K1105
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        ABB 424K1105
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        ABB 424K1105
        ABB 424K1105
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        424K1105

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        ABB 424K1105 is a Type 25V drawout synchronism-check relay with dead-bus and dead-line closing options.
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        Ships by Wednesday, October 28
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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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        Apter Power offers a wide range of components, products and services related to industrial automation. We also supply new products from a variety of quality manufacturers.
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        Technical specifications for 424K1105

        • Manufacturer:
          ABB
        • Part Number:
          424K1105
        • Product Family:
          ABB Electrical
        • Product Type:
          Type 25V Synchronism Check Relay
        • Stock:
          1
        • Relay Type:
          Type 25V synchronism check with dead-bus/dead-line options
        • Catalog Construction:
          424K drawout test case
        • Time-Delay Range for 424K1105:
          1–15 s
        • Input Voltage:
          120 V nominal; 140 V maximum continuous
        • Minimum Energizing Voltage:
          90 V at line or bus input
        • Frequency:
          50/60 Hz
        • Nominal Burden:
          1 VA per input
        • Worst-Case Burden in HBDL or HLDB:
          2 VA on energized input
        • Vector-Difference Adjustment:
          approximately 0–80 V
        • Dead-Bus/Dead-Line Level Adjustment:
          approximately 0–120 V
        • Factory Dead-Bus/Dead-Line Setting:
          30 V nominal
        • Dropout Time:
          approximately 1 cycle
        • Operating Temperature:
          -20 to +70 °C
        • Output Contacts at 125 VDC:
          30 A closing; 5 A continuous; 0.3 A inductive break
        • Dielectric Strength:
          2000 VAC RMS for 1 minute
        • Dimensions:
          17.5 × 12.4 × 21.3 cm
        • Tariff Code:
          8536490090
        • Country of origin:
          Sweden
        • 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 Closing Logic Installation Testing Application
        • Verifies synchronism across a circuit breaker before closing.
        • Adds selectable dead-bus and dead-line closing options.
        • Uses adjustable vector-difference and time-delay criteria.

        424K1105 is an ABB Type 25V synchronism-check relay designed in a 424K drawout test case.

        It compares line and bus voltage conditions, applies the selected delay, and transfers its output only when the applicable synchronism or dead-source criteria are satisfied.

        Before installation or replacement, verify the complete catalog number, drawout case, same-phase 120 V inputs, grounding, function-switch selection, settings and external closing circuit.

        Availability, condition, price, and shipping time for 424K1105 are confirmed during quotation.

        ABB 424K1105 Type 25V Synchronism Check Relay Manuals, Product Family, Links

        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.

        • Normal sync-check operation requires both live sources to satisfy the selected criteria.
        • Type 25V permits selectable hot-bus/dead-line operation.
        • Type 25V permits selectable hot-line/dead-bus operation.
        • The catalog series 424 unit uses a drawout test case.
        • Line and bus inputs must be taken from the same phase.
        • The Type 25V terminal marked G must be connected to ground.
        • The built-in test requires both sources energized and synchronized.
        • TRIP TEST injects a simulated loss-of-synchronism condition.
        • Releasing the test restarts the selected delay before contact transfer.
        • Circuit-breaker closing supervision between synchronized AC sources
        • Dead-bus or dead-line closing schemes
        • Fast motor-bus transfer and high-speed reclosing supervision
        Description
        424K1105 is an ABB Type 25V synchronism-check relay in a 424-series drawout test case.

        It verifies voltage synchronism across a circuit breaker and adds selectable hot-bus/dead-line and hot-line/dead-bus closing modes with adjustable vector-difference and time-delay criteria.

        Before installation or replacement, confirm the complete catalog number, 424 drawout case, 120 V 50/60 Hz inputs, same-phase wiring, grounding, function-switch selection and closing scheme.
        Alternative Names
        424K1105 ABB 424K1105 25V 424K1105 Type 25V 424K1105 ABB 25V 424K1105 ABB Type 25V 424K1105
        Technical notes
        424K1105 is the 1–15 s Type 25V relay in a 424K drawout case; match same-phase 120 V inputs, grounding, function selection and the breaker-closing scheme.
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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
        Which closing modes are available on ABB 424K1105?
        The Type 25V function switch supports sync-check only, hot-bus/dead-line, hot-line/dead-bus, and combined hot-bus/dead-line or hot-line/dead-bus selection.
        How do the difference-voltage and time-delay settings interact on ABB 424K1105?
        Both criteria must remain satisfied before the output contacts transfer. A smaller difference-voltage setting or a longer delay makes closing more restrictive and reduces allowable slip frequency.
        Can ABB 424K1105 replace a 224K standard-case relay without checking the case?
        No. ABB 424K1105 belongs to the 424K drawout test-case series, while 224K units use a standard case; the case, rear connections and catalog number must match.
        What information should be recorded before replacing ABB 424K1105?
        Record the function-switch position, difference-voltage setting, time-delay setting, dead-bus or dead-line threshold, terminal wiring, and external breaker-closing logic before removal. Confirm the replacement settings against the approved control drawings and complete a functional closing-permissive test before returning the circuit to service.
        How is the built-in test used on ABB 424K1105?
        The built-in test is performed only with both sources energized and in synchronism; pressing TRIP TEST should remove pickup and timer indications, and releasing it should restart the selected delay before pickup.
        Why is ABB 424K1105 suitable for fast motor-bus transfer or reclosing supervision?
        ABB documents an approximately one-cycle dropout time, allowing the relay to supervise fast motor-bus transfer and high-speed reclosing schemes without a separate 52/b contact.
        What should be investigated if ABB 424K1105 does not issue a closing permissive?
        Check same-phase input wiring, the 90 V energizing threshold, vector difference, selected delay, dead-bus/dead-line mode, case seating, terminal G grounding and the external closing circuit.

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