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          Apter Power supports voltage-branch review, official manuals, condition verification, and legacy sourcing coordination.

        1745-LP152

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        1001 reviews ｜ Need a Specific Revision?
        Allen-Bradley 1745-LP152 is a black-patch SLC 150 processor with twenty 170–265 V AC inputs, ten triac outputs, two hard contacts, and 1200 words of memory.
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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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        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 1745-LP152

        • Manufacturer:
          Allen-Bradley
        • Part Number:
          1745-LP152
        • Product Family:
          SLC 100
        • Product Type:
          SLC 150 Processor Unit
        • Stock:
          1
        • Built-in I/O:
          20 inputs / 12 outputs
        • Input circuits:
          170–265 V AC, current sinking
        • Output circuits:
          10 triacs plus 2 hard contacts
        • User memory:
          1200 words
        • Typical scan time:
          4 ms per 1000 words
        • Internal relays:
          177 maximum
        • Memory backup:
          Capacitor; optional 1745-B1 battery
        • Color patch:
          Black
        • Estimated shipping dimensions:
          26.04x14.99x6.99cm
        • Tariff Code:
          8537101190
        • 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 Input Match Output Types Program Backup Product Applications

        Features:

        • High-voltage sensing: twenty 170–265 V AC current-sinking inputs
        • Mixed switching: ten AC triacs plus two hard-contact outputs
        • Retention options: capacitor backup can be supplemented by 1745-B1
        Black-patch identity and measured input voltage separate this unit from the LP151 before any wiring is moved.

        The mixed output bank requires a terminal-by-terminal load record because triacs and relay contacts do not behave the same way.

        A complete program and retained-data backup should precede a long outage or processor exchange.

        Apter Power can coordinate 1745-LP152 high-voltage variant checks, official documents, condition review, and legacy sourcing.
        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.
        • Black patch: confirm the visible variant marking
        • Field range: verify every input circuit is within 170–265 V AC
        • Leakage review: evaluate solid-state sensors against the official off-state limits
        • Ten triacs: reserve these points for supported AC switching duties
        • Two contacts: document the AC or DC loads assigned to the relay outputs
        • Protection: retain load suppression, fusing, and approved disconnect practices
        • Capacitor: account for official retention time and operating temperature
        • 1745-B1: record optional battery presence and condition
        • Recovery: maintain an external program copy and controlled restart checklist
        • High-voltage field control: process twenty matched 170–265 V AC inputs
        • AC actuator control: use the ten triac outputs within their documented duties
        • Mixed-load machines: apply the two hard contacts where supported switching isolation is required
        Description
        The high-voltage SLC 150 processor variant is 1745-LP152, identified by its black patch and twenty 170–265 V AC current-sinking inputs. Its twelve-output bank combines ten AC triacs with two hard contacts for mixed machine loads.

        Legacy sequence control in 1745-LP152 is supported by 1200 words of CMOS RAM, a typical 4 ms scan per 1000 words, and as many as 177 internal relays. Standard capacitor retention can be supplemented by the optional 1745-B1 lithium battery.

        A field replacement for 1745-LP152 must preserve the high-voltage input wiring, distinguish triac and hard-contact output duties, recover the program, and document the expansion map and restart sequence. LP151 specifications cannot be copied because its input bank is the 85–132 V AC version.
        Alternative Names
        Allen-Bradley 1745-LP152 1745 LP152 SLC 150 black-patch processor SLC150 230 V input controller
        Technical notes
        High-voltage input identity and mixed outputs define the service boundary for 1745-LP152. Confirm the black 170–265 V AC patch, incoming-power connection, twenty field inputs, ten triac loads, two hard-contact loads, program backup, and memory-retention method. Remove processor, expansion, and field power before cable or terminal 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.
        VIEW ALL FAQS
        How can an engineer distinguish 1745-LP152 from LP151 before replacing panel wiring?
        Use the full catalog label, black patch, and measured input voltage. This processor belongs to the 170–265 V AC input branch rather than the lower-voltage LP151 branch.
        Why can a triac output of 1745-LP152 appear energized with a very small load?
        Solid-state leakage and minimum-load behavior can leave measurable voltage at the circuit. Compare the connected device with the official triac limits instead of treating the point as a dry contact.
        How should the two hard-contact outputs on 1745-LP152 be restored after replacement?
        Restore them as separate relay circuits, not as part of the ten-triac group. Confirm each load's switching duty and suppression before the contacts are energized.
        What should be done before 1745-LP152 enters a long unpowered shutdown?
        Create an external program backup first. Then account for the documented capacitor-retention conditions and the service state of any optional 1745-B1 battery.
        Where should diagnosis begin when inputs on 1745-LP152 flicker?
        Begin with measured field voltage and off-state leakage at the affected terminals. If those are stable, continue through the common wiring, expansion connection, and assigned program address.
        Which functions should a modernization test preserve from 1745-LP152?
        Preserve the observed sequence and timing-sensitive behavior, then prove the separate triac and relay safe states. Do not release the new platform until the high-voltage input mapping also agrees with the field circuits.

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