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        1746SC-IA8I

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        1001 reviews ｜ Need a Specific Revision?
        Spectrum Controls 1746SC-IA8I provides eight individually isolated 100/120 V AC/DC inputs for Allen-Bradley SLC 500 systems.
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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.
        Shipping Mode
        Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.
        Parts Availability
        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.
        How to order
        We have been working hard to update our inventory. If we have stock or parts available for new factory purchases, you can contact the order online. If we do not currently have an inventory, the displayed quantity will show "Ask". Please create an online quote or contact us by phone, fax or email to check availability.

        Technical specifications for 1746SC-IA8I

        • Manufacturer:
          Allen-Bradley
        • Part Number:
          1746SC-IA8I
        • Product Family:
          SLC 500
        • Product Type:
          8-Channel Isolated 100/120 V AC/DC Input Module
        • Stock:
          1
        • Input Channels:
          8
        • Points per Common:
          1; each input is individually isolated
        • Voltage Category:
          100/120 V AC at 50/60 Hz; 100/120 V DC, sinking or sourcing
        • Operating Voltage:
          80…150 V AC at 47…63 Hz; 85…170 V DC
        • Nominal Input Current:
          16 mA at 120 V AC, 60 Hz; 2.5 mA at 120 V DC
        • Maximum Input Inrush:
          0.7 A at 120 V AC
        • Maximum Off-to-On Delay:
          17 ms at 120 V AC; 7 ms at 120 V DC
        • Maximum On-to-Off Delay:
          45 ms at 120 V AC; 40 ms at 120 V DC
        • Backplane Current:
          0.110 A at 5 V DC; 0 A at 24 V DC
        • Maximum Total Dissipation:
          4 W at 120 V AC/DC; 6 W at 150 V AC/DC
        • Module ID Code:
          303
        • Dimensions:
          3.5 × 13.0 × 14.5 cm
        • Weight:
          0.28 kg
        • Tariff Code:
          8538900000
        • Country of origin:
          USA
        • 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 Isolation Configuration Installation Application
        • Plan a separate field source and return path for each isolated input point
        • Use module ID code 303 when configuring the module in an SLC 500 system
        • Confirm terminal identification, grounding, and ferrite placement before transferring field wiring

        1746SC-IA8I system planning starts with its point-by-point isolation, so each of the eight inputs should be treated as an independent field circuit.

        Document the intended 100/120 V AC or DC source arrangement for every channel and retain module ID 303 in the SLC 500 configuration.

        Before commissioning, compare the terminal labels, grounding, and ferrite placement with the existing panel to preserve the documented isolation arrangement.

        Availability, condition, price, and shipping time for 1746SC-IA8I are confirmed during quotation.

        Spectrum Controls 1746SC-IA8I 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.

        • Every input has a separate common
        • Input circuits are electrically isolated from one another
        • The official diagram permits up to eight supported voltage sources
        • APS may display the module as 1746-IA8I without the sc prefix
        • Module ID code 303 is used when manual entry is required
        • The module is intended only for Allen-Bradley SLC 500 systems
        • The SLC 500 processor must be properly grounded
        • A ferrite is required on the SLC 500 power line
        • Power must be removed before hazardous-location wiring or replacement
        • Monitoring isolated 100/120 V AC limit or selector-switch circuits
        • Monitoring independent 100/120 V DC control signals
        • Mixed supported AC/DC status acquisition where each input requires its own common
        Description
        1746SC-IA8I brings eight separate high-voltage discrete sensing circuits into an Allen-Bradley SLC 500 chassis.

        Each point has its own common, allowing supported AC or DC source arrangements without tying the input commons together inside the module.

        Before installation, verify source type and voltage per point, module ID 303, grounding, ferrite placement, terminal labels, and hazardous-location wiring practice.
        Alternative Names
        1746SC-IA8I 1746sc-IA8I 1746 SC IA8I 1746SCIA8I Spectrum Controls 1746sc-IA8I Spectrum 1746sc-IA8I SLC 500 1746sc-IA8I
        Technical notes
        1746SC-IA8I requires SLC 500 module ID 303, individual source verification, grounding, and the documented power-line ferrite; source or common errors can misreport inputs.
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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 manufacturer documentation should be used when ordering Spectrum Controls 1746SC-IA8I?
        Use the Spectrum Controls exact-model manual and verify the physical 1746SC-IA8I label. Allen-Bradley compatibility does not make 1746-IA8I or another SLC input module an automatic substitute.
        Can Spectrum Controls 1746SC-IA8I monitor separate AC and DC sources?
        Yes. The eight input circuits have individual commons and are electrically isolated from one another, so the official wiring diagram permits separate supported sources.
        What should be checked for a low-inrush IEC Type 1 device on Spectrum Controls 1746SC-IA8I?
        The official wiring page notes that devices unable to support the documented inrush may require the specified external series resistor; verify the field device and circuit before connection.
        How is Spectrum Controls 1746SC-IA8I selected in older Allen-Bradley programming software?
        Some APS versions list it without the sc designation as 1746-IA8I; if it is absent, use OTHER and enter module ID code 303 as documented.
        Does Spectrum Controls 1746SC-IA8I require an additional installation component?
        Yes. The manual requires a ferrite on the SLC 500 power line for this input-module group, installed in the documented manner.
        Can Spectrum Controls 1746SC-IA8I be wired while the hazardous-area circuit is energized?
        No. The manual requires power to be removed before replacement or wiring in hazardous locations and requires the processor to be properly grounded.
        What should be matched before replacing Spectrum Controls 1746SC-IA8I?
        Match the complete model, module ID, source voltage and type for every channel, individual commons, grounding, ferrite, terminal wiring, and chassis configuration.

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