Allen-Bradley
1756-L55/A
Allen-Bradley 1756-L55/A ControlLogix Processor 3.5MB RS232 630mA 5.1VDC Ser A
Only 4 left
Free shippingShips today by 3 PM CT
$43.89
Allen-Bradley 1756-L55 Ser A ControlLogix Processor 750KB 1756-M12 RS232 FW 1.4
Used
Previously installed or used, with signs of normal wear. The photos show this exact unit. A listing without a stated condition is shown as Used. What “Used” means
$29.89
6 more units available (Used $31.89, New Surplus, Open Box $77.89, Used $211.89)
Need more than 1 unit or a different condition? Request a quote for additional quantityWe reply within 1 hour during business hours (Mon to Fri 9 to 4:30 CT).
30-day guarantee · free returns if it's not as described. How it works
92,000+ items sold on eBay17,000+ seller ratings on eBay
KIV Industrial Parts is NOT an authorized distributor of Allen-Bradley. Manufacturer warranty does not apply.
Allen-Bradley / Rockwell surplus note
Questions? Call or text 469-316-8517 · Mon to Fri 9 AM to 4:30 PM CT
The Allen-Bradley 1756-L55 is a ControlLogix Processor RS232 (PLC Processors & CPUs). Listed details: series A, firmware revision 1.4, cat. rev. J03 and memory expansion installed 1756-M12/A 750KB / Ser A / Cat. rev. F01. This unit is Used: previously installed or used, with signs of normal wear. The photos show this exact unit. A listing without a stated condition is shown as Used. It is in stock at our Princeton, Texas warehouse and ships in 1 business day.
| Manufacturer | Allen-Bradley |
|---|---|
| Part number | 1756-L55 |
| Product line | ControlLogix |
| Category | PLC Processors & CPUs |
| Firmware | 1.4 · from the title |
| Also known as | |
| Manufacturer | Allen-Bradley |
| Series | A |
| Firmware revision | 1.4 |
| Backplane current | 630mA @ 5.1 V DC, 14mA @ 24 V DC (processor); 600mA @ 5.1 V DC (memory) |
|---|
| Cat. rev. | J03 |
|---|---|
| Memory expansion installed | 1756-M12/A 750KB, Ser A, Cat. rev. F01 |
| Family | ControlLogix Logix5555 processor unit |
| Memory | 750KB (1756-M12 memory expansion) |
| Battery | 1756-BA1 3 V 1800mAh lithium |
| Accessories | 2 keys |
| Condition | Used |
|---|---|
| Quantity available | 1 in stock |
| Item number | K96589 |
Read from the labels and photos of this unit and its part number; values marked “from the title” are as printed in the listing title. Check the manufacturer's documentation before installing.
Free ground shipping to all 50 US states, usually 3 to 5 business days in transit. Ships today if ordered by 3 PM CT (Mon to Fri). International: we ship worldwide (except sanctioned countries). Standard international shipping is $110.00 flat per order, paid at checkout.
30-day guarantee · free returns if it's not as described. Changed your mind? A 15% restocking fee applies.
Shipping, add-ons & pickup · International orders · 30-day guarantee & returns · Payment
KIV Industrial Parts has 1 in stock at its warehouse in Princeton, TX, from $29.89. Orders placed by 3 PM on business days ship the same day with free shipping to all 50 US states.
The Allen-Bradley 1756-L55 is a ControlLogix Processor, listed under PLC Processors & CPUs, part of the Allen-Bradley ControlLogix product line.
In stock as Used. Every listing shows photos of the actual unit that ships; the conditions are explained at https://kivparts.com/conditions.
Yes: KIV Industrial Parts's 30-day guarantee covers a part that arrives not as described, dead on arrival or damaged (https://kivparts.com/returns).
KIV Industrial Parts is not an authorized distributor, dealer or representative of Allen-Bradley, and is not affiliated with or endorsed by Allen-Bradley. Allen-Bradley and the part number are used only to identify the product. This item may be surplus, used or refurbished, may have an older date code or series, and is not covered by the manufacturer's warranty. The photos show the actual item.
Sold as surplus. KIV Industrial Parts is not an authorized Allen-Bradley / Rockwell Automation distributor: no Rockwell Automation warranty or support applies, and the firmware version and series revision are not guaranteed. New items are listed as “New Surplus”.
The same part number with a different series or revision, in stock now. Series and revisions can differ in features and firmware: check which one your system needs.
Allen-Bradley
Allen-Bradley 1756-L55/A ControlLogix Processor 3.5MB RS232 630mA 5.1VDC Ser A
Only 4 left
Free shippingShips today by 3 PM CT
$43.89
Allen-Bradley
Allen-Bradley 1747-L543 SLC 500 Processor Unit PLC CPU Module Automation Control
Only 1 left
Free shippingShips today by 3 PM CT
$87.89
Allen-Bradley
Allen Bradley 2760-RB Series A Flexible Interface Module PLC-5 Industrial OEM
Only 1 left
Free shippingShips today by 3 PM CT
$97.89
Allen-Bradley
Allen-Bradley 1756-L55/A ControlLogix Processor 750KB 208KB FW 1.4 1756-BA1 Key
Only 1 left
Free shippingShips today by 3 PM CT
$60.89
Allen-Bradley
Allen-Bradley 1745-E104 Ser A SLC 100 Expansion Unit Programmable Controller I/O
Only 1 left
Free shippingShips today by 3 PM CT
$164.89
Allen-Bradley
Allen-Bradley 1785-L11B/E PLC-5/11 Processor Module Programmable Controller PLC
Only 3 left
Free shippingShips today by 3 PM CT
$17.89
Allen-Bradley
Allen-Bradley 1747-L531 Ser E SLC 500 5/03 Processor Unit CPU Rev 8 PLC Module
Only 2 left
Free shippingShips today by 3 PM CT
$181.89
Allen-Bradley
Allen-Bradley 1761-L32AWA MicroLogix 1000 PLC 32 I/O 20x120VAC 100-240VAC Ser E
Only 1 left
Free shippingShips today by 3 PM CT
$131.89
Allen-Bradley
ALLEN-BRADLEY 1794-OB16P SER A REV A01 Electrical Supply Programmable Controller
Only 4 left
Free shippingShips today by 3 PM CT
$11.89
Allen-Bradley
Allen-Bradley 1756-M08SE Ser B ControlLogix 8 Axis SERCOS Servo Interface Module
Only 2 left
Free shippingShips today by 3 PM CT
$90.89
Allen-Bradley
Allen-Bradley 1756-OB16D/A ControlLogix 16-Point DC Diagnostic Output Module 2A
Only 1 left
Free shippingShips today by 3 PM CT
$42.89
Allen-Bradley
Allen-Bradley 1756-ENBT Ser A ControlLogix EtherNet/IP Module 10/100 700mA 60C
Only 1 left
Free shippingShips today by 3 PM CT
$64.89
Allen-Bradley
Allen-Bradley 1756-ENBT ControlLogix EtherNet/IP Module 10/100 700mA 5.1VDC 60C
In stock
Free shippingShips today by 3 PM CT
$38.89
Allen-Bradley
Allen-Bradley 1756-IB32 ControlLogix 32-Point Input Module 12/24V Sinking Ser. B
Only 3 left
Free shippingShips today by 3 PM CT
$19.89
Allen-Bradley
Allen-Bradley 1756-DHRIO ControlLogix DH+/RIO Interface Module Ser C 2 Ch 850mA
Only 1 left
Free shippingShips today by 3 PM CT
$23.89
Allen-Bradley
Allen-Bradley 1756-L55/A ControlLogix Processor 3.5MB RS232 630mA 5.1VDC Ser A
Only 4 left
Free shippingShips today by 3 PM CT
$43.89
Allen-Bradley
Allen-Bradley 1756-CNB ControlLogix ControlNet Communication Bridge Module Ser D
Only 1 left
Free shippingShips today by 3 PM CT
$97.89
Allen-Bradley
Allen-Bradley 1785-KE/C DH+ to RS232 Interface Module PLC-5 Data Highway Plus
Only 1 left
Free shippingShips today by 3 PM CT
$14.89
AI assistant: answers may be wrong. Call or text 469-316-8517 to confirm.