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1769-L24ER-QB1B Allen-Bradley

Original price $1,312.50 - Original price $3,415.43
Original price
$1,312.50
$1,312.50 - $3,415.43
Current price $1,312.50
Surplus - Tested (With Warranty)
Need a Specific Revision?
$1,312.50
3 in stock
New / Open-Box Surplus
Need a Specific Revision?
$3,415.43
2 in stock
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Product Details

Description · Specifications · Product Overview

Specifications provided for reference. Verify critical details against official manufacturer documentation before installation.

Product Overview

The 1769-L24ER-QB1B is a CompactLogix 5370 L2 programmable automation controller (PAC) from Allen-Bradley. It integrates a 24 V DC isolated embedded power supply, 16 digital inputs, 16 digital outputs, dual Ethernet ports with Device Level Ring support, and USB connectivity. With 750 KB user memory and support for up to four local 1769 Compact I/O expansion modules, it serves mid-level control applications such as machine control, modular automation, and distributed system integration efficiently. 1769-L24ER-QB1B.

Best Suited For

  • Mid-level machine control and logic processing
  • Applications requiring dual EtherNet/IP with Device Level Ring redundancy
  • Local I/O expansion up to four modules
  • Systems needing embedded digital I/O with compact footprint
User memory
750 KB
Embedded I/O
16 DC inputs, 16 DC outputs
Ethernet ports
2 (EtherNet/IP, Device Level Ring)
Expansion modules
Supports 4 local 1769 I/O modules

Technical Specifications

I/O & Electrical

DC input voltage range
10…28.8 V DC @ 40 °C; 10…26.4 V DC @ 60 °C
DC outputs (FET sourcing)
0.83 A @ 24 V DC @ 40 °C; 0.5 A @ 24 V DC @ 60 °C

Communication & Power

Embedded power supply
24 V DC, 2.1 A (Class 2/SELV)
Backplane out
1.54 A @ 5 V DC
Power dissipation
- (not specified in official)
Communication ports
2 × Ethernet (EtherNet/IP, Device Level Ring), 1 × USB

Physical & Environmental

Operating temperature
0…60 °C
Mounting
DIN-rail or panel mount
Dimensions (WxHxD)
approx. 100 × 115 × 118 mm (3.94 × 4.53 × 4.65 in.)
Weight
approx. 3 lb (1.36 kg)

Certifications

UL ListedCEODVAChina CCCAustralian RCMATEXIECExKorean KCUKCAUK EXMorocco DOC

Certifications include UL Listed, CE, ODVA, China CCC, Australian RCM, UL Listed Hazardous, ATEX, IECEx, Korean KC, UKCA, UK EX Certificate, Morocco DOC (as of June 26, 2026).

1-Year Warranty

Every tested unit is backed by our free 1-year PLC Department warranty, direct from us.

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USA Stock

Sourced and shipped from Texas, USA. Never anonymous overseas marketplace stock.

30-Day Returns

Hassle-free RMA. If the part is not right for your application, send it back within 30 days.

Reseller Options

Resellers welcome. Reach out for volume pricing and we will get you set up.

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Rockwell Automation documentation

Access official manuals, datasheets, and lifecycle information for this part directly from Rockwell Automation.

Visit RockwellAutomation.com

Must Read: Disclaimer

PLC Department sells surplus and refurbished industrial automation products, including but not limited to programmable logic controllers (PLCs), which are sourced exclusively through independent third-party channels. PLC Department is not an authorized distributor, reseller, or representative of any manufacturer listed on this website, including Rockwell Automation or its Allen-Bradley brand. All product warranties, where offered, are provided solely by PLC Department and not by the original manufacturer.

Any reference to manufacturer names, logos, trademarks, or product identifiers is for identification and compatibility purposes only. All such trademarks and brand names are the property of their respective owners, and this website is not affiliated with, endorsed by, or approved by any manufacturer referenced herein.

The products offered for sale may be used or surplus and may contain older date codes, be of earlier series or versions, or differ in appearance or features compared to products available through factory-authorized distribution channels. The presence, version, or functionality of firmware, if any, on programmable devices such as Allen-Bradley PLCs is not guaranteed. PLC Department makes no representation or warranty regarding:

PLC Department does not obtain or supply firmware on behalf of customers. It is solely the customer's responsibility to ensure legal and compliant use of any firmware or software associated with products purchased through this site, including compliance with any applicable license agreements or manufacturer policies.

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