Allen-Bradley 1734-EXT1 Bus Extension Cable,POINT I/O,1 m,Open Style Connectors Each
$144.99
Out of stock
Request QuoteAllen-Bradley 1734-EXT1 — The Allen-Bradley 1734-EXT1 is a POINT I/O (Bulletin 1734) accessory: 1 m bus extension cable with open-style connectors at each end. Extends the POINT I/O backplane between two DIN rails or panel sections. Designed for distributed I/O applications where a bank of up to 63 modules connects to a single network adapter (EtherNet/IP, DeviceNet, PROFIBUS, ControlNet). The POINT I/O platform supports hot-swapping of modules under power, zero-loss I/O during module replacement, and modular expansion via additional wiring bases. All accessories in the 1734 family interoperate — terminal blocks, bases, network adapters, expansion power supplies, and specialty modules.
| Product Family | Bulletin 1734 POINT I/O — POINT I/O Bus Extension Cable — 1 meter |
| Catalog Number | 1734-EXT1 |
| Length | 1 m (3.28 ft) |
| Connectors | Open-style both ends |
| Use | Extends POINT I/O backplane between DIN rail sections |
| Longer Variant | 1734-EXT3 (3 m) |
PLC Exchange is not an authorized distributor: Original Packaging is synonymous with Used Surplus. See Original Packaging or Warranty for more information.
Description
Allen-Bradley 1734-EXT1
The Allen-Bradley 1734-EXT1 is a POINT I/O (Bulletin 1734) accessory: 1 m bus extension cable with open-style connectors at each end. Extends the POINT I/O backplane between two DIN rails or panel sections. Designed for distributed I/O applications where a bank of up to 63 modules connects to a single network adapter (EtherNet/IP, DeviceNet, PROFIBUS, ControlNet). The POINT I/O platform supports hot-swapping of modules under power, zero-loss I/O during module replacement, and modular expansion via additional wiring bases. All accessories in the 1734 family interoperate — terminal blocks, bases, network adapters, expansion power supplies, and specialty modules.
| Module Overview | |
|---|---|
| Catalog Number | 1734-EXT1 |
| Product Family | Bulletin 1734 POINT I/O — POINT I/O Bus Extension Cable — 1 meter |
| Description | 1 m bus extension cable with open-style connectors at each end. Extends the POINT I/O backplane between two DIN rails or panel sections. |
| Length | 1 m (3.28 ft) |
| Connectors | Open-style both ends |
| Use | Extends POINT I/O backplane between DIN rail sections |
| Longer Variant | 1734-EXT3 (3 m) |
| POINT I/O Platform Features | |
|---|---|
| Backplane | POINTBus — 24V DC control power + network-side data |
| Max Modules per Adapter | 63 modules (extended via 1734-EP24DC power supply) |
| Hot Swap | Modules can be removed/replaced under power (RIUP) |
| Mounting | 35 mm DIN rail (EN 60715) |
| I/O Module Installation | Modules plug into wiring bases; field wiring terminates on RTB |
| Compatible Network Adapters | |
|---|---|
| EtherNet/IP Single-Port | 1734-AENT / AENTK (conformal coated) |
| EtherNet/IP Dual-Port (DLR) | 1734-AENTR / AENTRK (conformal coated) |
| DeviceNet | 1734-ADN, 1734-ADNX (with subnet), 1734-PDN (individual-module) |
| PROFIBUS DP | 1734-APB |
| ControlNet | 1734-ACNR |
| Certifications | |
|---|---|
| c-UL-us | UL Listed Industrial Control Equipment |
| CE | EN 61131-2 Programmable Controllers, EN 61326-1 EMC |
| Hazardous Location | Class I Div 2 Groups A/B/C/D |
| RCM / KC / EAC | Yes |
| Environmental Specifications | |
|---|---|
| Operating Temperature | -20…+55 °C (-4…+131 °F) — IEC 60068-2-1 / -2-2 / -2-14 |
| Maximum Surrounding Air Temperature | 55 °C (131 °F) |
| Storage Temperature | -40…+85 °C (-40…+185 °F) |
| Relative Humidity | 5…95% non-condensing — IEC 60068-2-30 (Test Db) |
| Vibration (Operating) | 5 g @ 10…500 Hz — IEC 60068-2-6 (Test Fc) |
| Shock (Operating) | 30 g — IEC 60068-2-27 (Test Ea) |
| Shock (Non-operating) | 50 g — IEC 60068-2-27 |
| ESD Immunity | 6 kV contact / 8 kV air discharge — IEC 61000-4-2 |
| Radiated RF Immunity | 10V/m, 80…6000 MHz — IEC 61000-4-3 |
| EFT / Burst Immunity | ±4 kV @ 5 kHz on power ports; ±2 kV @ 5 kHz on signal ports — IEC 61000-4-4 |
| Surge Transient Immunity | ±1 kV line-line / ±2 kV line-earth — IEC 61000-4-5 |
| Conducted RF Immunity | 10V rms, 150 kHz…80 MHz — IEC 61000-4-6 |
| Emissions | IEC 61000-6-4 (Industrial environment, Class A) |
| Enclosure Type Rating | None (open-style) — must be installed in a suitable industrial enclosure |
| Mounting Type | 35 mm DIN rail |
| Certifications & Standards | |
|---|---|
| c-UL-us (UL Listed) | UL Listed Industrial Control Equipment for US and Canada — UL File E65584 |
| c-UL-us (Hazardous Locations) | UL Listed for Class I Division 2, Group A/B/C/D — UL File E194810 |
| CE Marked — EMC Directive | 2014/30/EU — EN 61326-1, EN 61000-6-2, EN 61000-6-4, EN 61131-2 |
| CE Marked — Low Voltage Directive | 2014/35/EU — EN 61131-2 (Programmable Controllers Clause 11) |
| CE Marked — RoHS Directive | 2011/65/EU — EN IEC 63000 |
| UKCA Conformity Assessment | UK Statutory Instrument 2016 No. 1091 (EMC), No. 1101 (LVD), 2012 No. 3032 (RoHS) |
| ATEX (Explosive Atmospheres) | 2014/34/EU — EN IEC 60079-0, EN IEC 60079-7 Protection "e" II 3G Ex ec IIC T4 Gc, DEMKO 04 ATEX 0330347X |
| IECEx | IECEx UL 20.0072X — IEC 60079-0, IEC 60079-7 Protection "e" II 3G Ex ec IIC T4 Gc |
| RCM (Australia) | Australian Radiocommunications Act — AS/NZS CISPR 11, Industrial Emissions |
| KC (Korea) | Korean Registration of Broadcasting and Communications Equipment, Article 58-2 Clause 3 |
| Morocco | Arrêté ministériel n° 6404-15 du 29 ramadan 1436 |
| CCC (China) | CCC: 2020122309111607 — CNCA-C23-01 Explosion-Proof Electrical Products |
| Marine Certification | ABS, Lloyd’s Register (where specified per module) |
| Mounting & Wiring | |
|---|---|
| Mounting Type | 35 mm DIN rail, horizontal or vertical — no thermal derating in either orientation |
| Terminal Base Assembly | Modules mount on 1734-TB/-TBS (8-terminal) or 1734-TB3/-TB3S (12-terminal) base assemblies — sold separately |
| One-Piece Terminal Base Option | 1734-TOP/-TOPS (8-terminal) or 1734-TOP3/-TOP3S (12-terminal) — integrated base with terminal block |
| Wire Size Range (Screw-Clamp) | 0.25…2.5 mm² (24…14 AWG) |
| Wire Size Range (Spring-Clamp) | 0.08…2.5 mm² (28…14 AWG) |
| Terminal Base Screw Torque | 0.4 N·m (3.5 lb·in) for 1734-TOP/-TOPS/-TOP3/-TOP3S wiring blocks |
| No-Tools System | Terminal base, RTB, and I/O module assemble and disassemble without tools |
| Extension Cables (for split DIN rails) | 1734-EXT1 (1 m) or 1734-EXT3 (3 m) POINTBus extension cables |
Related Technical Topics
- Split-Rail Installation — The 1734-EXT1 (1 m) and 1734-EXT3 (3 m) POINTBus extension cables allow a single POINT I/O node to span two separate DIN rails — useful when the available panel width is less than the full module count.
- Backplane Integrity — The cable extends the full PointBus backplane — backplane power and signal integrity are preserved. No additional adapter or expansion power is required on the second rail.
- Cable Orientation — Route the extension cable vertically away from high-current power wiring. Do not exceed the nominal 3 m length for the EXT3.
- One Extension Per Node — Use only one extension cable per POINT I/O node. Multiple extensions are not supported.
Source: All specifications verified against Rockwell Automation Publication 1734-SG001I-EN-P — POINT I/O Modules Selection Guide (April 2025). Module-specific content from the POINT I/O Family Overview (p. 3-4); Environmental Specifications from Table 4 (digital I/O, p. 15), Table 17 (terminal bases, p. 40), and expansion power (p. 44); Certifications from Tables 3, 9, 18 (pp. 14, 20, 40); mounting and wiring from pp. 37-39.
PLC Exchange Original Packaging is synonymous with Used Surplus. Because we are not an authorized distributor, we are not legally allowed to claim these items as “New”, “Factory Sealed”, or any other term that may imply such. We have over 10 years of experience working with trusted suppliers to make sure you receive the top-quality hardware you need. Used Surplus items ship in their original packaging, with the same function and contents as OEM-supplied materials. PLC Exchange is an independent supplier of industrial automation products and is not affiliated with the brand manufacturer or any of its authorized distributors. All warranties are provided directly by PLC Exchange. Trademarks, logos, and brand names referenced are property of their respective owners and are used for descriptive identification only.
Disclaimer: PLC Exchange is an independent reseller and is not an authorized distributor, affiliate, licensee, partner, or agent of Allen-Bradley / Rockwell Automation. All product information on this page is compiled from publicly-available manufacturer publications, technical data sheets, and catalog sources, each of which remains the copyright of its originating manufacturer. We make no representation or warranty, express or implied, regarding the accuracy, completeness, timeliness, or fitness for any particular purpose of the specifications or descriptions shown — content may contain errors, omissions, or out-of-date information. Product images are the property of their respective manufacturers, trademark owners, and source publications, and are displayed solely for identification purposes under the nominative fair use doctrine; images are representative and may depict a different configuration or catalog variant than the exact product listed. Purchasers should independently verify specifications against the current manufacturer publication before placing an order. All product names, trademarks, service marks, and registered trademarks are the property of their respective owners, and their use does not imply endorsement or affiliation.
Technical Notes for 1734-EXT1
- Refer to the manufacturer's installation instructions for proper mounting, wiring, and configuration.
- Ensure compatibility with your existing system architecture before ordering.
- All 1734-EXT1 units sold by PLC Exchange are tested and ship in original factory packaging.
- For application-specific questions or system compatibility verification, contact PLC Exchange technical support at [email protected] or 980-202-0882.
Alternative Part Numbers & Names for 1734-EXT1
The 1734-EXT1 by Allen-Bradley may also be found under the following alternative names, catalog numbers, or common search variations:
- 1734EXT1
- Allen Bradley 1734-EXT1
- Allen-Bradley 1734-EXT1
- 1734 EXT1
- 1734/EXT1
- POINT I/O 1734-EXT1
- POINTI/O 1734-EXT1
All variations refer to the same Allen-Bradley product. If you are unsure whether this is the correct part for your application, contact our team for assistance.
Additional information
| Weight | 0.5 lbs |
|---|---|
| Dimensions | 12 × 10 × 6 in |
| warranty | 2.5 Year PLC Exchange Warranty, 30 Days worry-free return from delivery |
| upc | 612598344017 |
| mpn | 1734-EXT1 |
| manufacturer | Allen-Bradley |
| condition | Original Packaging |
Dimensions & Weight for 1734-EXT1
| Shipping Dimensions | |
|---|---|
| Weight | 0.5 lbs |
| Length | 12 in |
| Width | 10 in |
| Height | 6 in |
| Box Dimensions (L×W×H) | 12 × 10 × 6 in |
Dimensions shown are for the shipping package. For module-level mechanical dimensions, refer to the manufacturer datasheet.
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Frequently Asked Questions
Does the 1734-EXT1 include a warranty?
Yes. Every 1734-EXT1 sold by PLC Exchange includes a 2.5-year warranty (30 months, full replacement). Details: https://plcexchange.net/warranty-information/
What is the return policy for the 1734-EXT1?
PLC Exchange offers a 30-day worry-free return policy. Eligibility and details: https://plcexchange.net/return-policy/
When will my 1734-EXT1 ship?
In-stock orders placed before 4 PM ET ship the same business day via free UPS Ground. Expedited options (Next Day Air, 2nd Day Air) are available at checkout.
Who manufactures the 1734-EXT1?
The 1734-EXT1 is manufactured by Allen-Bradley. PLC Exchange is an independent reseller specializing in Allen-Bradley industrial automation products.
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