top of page

Allen Bradley 1734-TOP3

Allen Bradley

PLCs

Point I/O 1734

1734-TOP3

ISO 9001:2015 Certified Quality

Our certified process ensures consistent quality and reliable repairs every time.

​

2-Year Repair Warranty

We stand behind our repairs with an extensive 2-year warranty on parts and labor for your peace of mind.

Fast Turnaround Time

Our efficient process and large parts inventory help minimize your operational downtime.

Expert Component-Level Repair

We find and replace individual failed components, offering a more affordable and effective repair than full replacement.

Free, No-Obligation Quote

Send us your item for a free evaluation and receive a detailed repair quote with no commitment required.

Product Description

The Allen-Bradley 1734-TOP3 is a one-piece POINT I/O terminal base featuring a 12-terminal screw-clamp block for efficient wiring of industrial automation devices like sensors and switches. It mounts vertically or horizontally on a DIN rail, providing backplane communication and field power bus distribution. Mechanical keying prevents incorrect I/O module installation, and assembly is tool-less. Key components include the wiring block, handle, interlocking side pieces, base, mechanical keying, and orange DIN-rail locking screw. It supports a field power bus voltage of 28.8V DC or 120-240V AC (up to 300V max), a maximum terminal current of 8A, and accommodates 22-14 AWG wire (0.25-2.5mm) with a screw torque of 0.6 Nm. Dimensions are approximately 49 x 12 x 168 mm (1.93 x 0.47 x 6.61 inches), and it weighs about 79.2 grams (2.79 ounces). Installation involves interlocking the base with adjacent units on the DIN rail, securing it with the locking screw in a horizontal position, and setting the mechanical key to match the I/O module. The POINT I/O system is grounded via the DIN rail. Terminal pins are numbered 0-11, and each pin accepts a maximum of two conductors. Compatible I/O modules, indicated by mechanical keying number, include: (1) 1734-IB2, 1734-OB8E, 1734-IB8, 1734-IB4, 1734-IV2, 1734-IV8, 1734-IV4, 1734-OV8E, 1734-OB2, 1734-OB4, 1734-OB8, 1734-OB2E, 1734-OB4E, 1734-OB2EP, 1734-OV2E, 1734-OV4E; (3) 1734-IE2C, 1734-IE2V; (4) 1734-OE2V, 1734-OE2C; (5) 1734-CTM, 1734-VTM; (7) 1734-OW2, 1734-OX2, 1734-OW4; (8) 1734-IA4, 1734-IA2, 1734-IM2, 1734-OA2, 1734-IM4, 1734-OA4.

Is Your Device Showing These Signs?

The Allen Bradley 1734-TOP3 POINT I/O terminal base commonly experiences issues such as corrupted backplanes, preventing communication between I/O modules and the adapter. Field wiring terminations become loose, causing intermittent signal loss and system faults. Corrosion accumulates on the terminal block connectors, resulting in communication errors and reduced signal integrity. Power supply fluctuations damage internal components, leading to module failures and system downtime. Firmware corruption occurs, disrupting normal operation and requiring a firmware update or replacement.

Technical specifications

  • The Allen-Bradley 1734-TOP3 is a POINT I/O terminal base designed for industrial automation. It features a 12-terminal screw-clamp block for easy wiring, DIN rail mounting (vertical or horizontal), backplane communication, and field power distribution. It has tool-less assembly, mechanical keying to prevent incorrect module installation, and supports specific voltage/current/wire gauge parameters. It's compact, lightweight, and compatible with a range of I/O modules based on the mechanical keying number. Installation involves interlocking, securing to the DIN rail, and setting the mechanical key.

Our Repair Process for the

1734-TOP3

Our repair process for the Allen Bradley 1734-TOP3 POINT I/O terminal base begins with a comprehensive diagnostic evaluation to pinpoint the root cause of the failure, including inspection for backplane corruption, loose field wiring terminations, connector corrosion, power supply damage, and firmware corruption. All field wiring terminations are tightened and secured. Connectors are meticulously cleaned to remove any corrosion. The backplane is thoroughly inspected and repaired or replaced as needed. Power supply circuits are tested and repaired or replaced if faulty. Firmware is updated or reimaged to ensure proper operation. Following repairs, the terminal base undergoes rigorous functional testing to verify complete restoration of all capabilities and ensure reliable performance under operational conditions.

Your Guarantee: Warranty & Lifetime Support

Your satisfaction is our top priority, and we confidently stand behind the quality of our repairs. That's why every repair service is covered by our comprehensive 24-month warranty. Furthermore, we offer lifetime phone support – if you have questions or need assistance related to our repair down the road, we're here to help. Our service commitment is straightforward: we guarantee our work, and if you're not satisfied, we will make it right. Learn More about our Repair process.

Comprehensive Repairs You Can Depend On

We take immense pride in the quality and reliability of our work. Our process goes beyond simply fixing the immediate problem. We perform a comprehensive inspection of your main board (or other equipment) and proactively replace components known to be failure-prone or showing signs of potential future failure. Before any item is returned, it undergoes rigorous functional testing to ensure it meets performance specifications and operates flawlessly. Visit our main Repair Services page to learn more.

Save Significantly

Our primary goal is to save you hundreds, or even thousands, of dollars compared to the cost of new equipment replacement. By repairing existing components, we provide an economical solution that is also eco-friendly. At Roc Industrial, our commitment to integrity and community drives our consistent growth and ensures you receive a reliable, cost-effective solution.

Repair flow chart new_edited.jpg

Please Note: Roc Industrial operates as an independent service provider and is not an authorized distributor for the manufacturers or brands mentioned. Consequently, the original manufacturer's warranty is not applicable to items repaired or sold by us. Roc Industrial provides its own 2-year warranty on all repair services performed.

Buying Options

To receive a quote within 2 hours, please provide us with the details of your requirements. Our team will promptly review your request and send you a custom offer.

American Flag

Ships from Rochester, NY

bottom of page