Allen-Bradley 1734-TBS Terminal Base,POINT I/O,Two Piece,8 Spring Clamp Terminals,O
$24.99
Out of stock
Request QuoteAllen-Bradley 1734-TBS — The 1734-TBS is an Allen-Bradley POINT I/O™ two-piece wiring base assembly consisting of a 1734-MB mounting base plus a 1734-RTBS removable terminal block with 8 spring-clamp terminations. Rated 28.8V DC / 120/240V AC signal terminals (2 A per signal, 10 A max field-power bus), DIN-rail mount, open-style, for use with POINT I/O adapters, power supplies, and I/O modules.
| Base Assembly | 1734-MB mounting base + 1734-RTBS spring-clamp RTB (8 positions) |
| Signal Terminal Voltage | 28.8V DC, 120/240V AC |
| Signal Terminal Current | 2 A |
| Field Power Bus (max) | 28.8V DC / 120/240V AC — 10 A |
| Dimensions (H × W × D) | 65 × 12 × 133.4 mm (2.56 × 0.47 × 5.25 in.) |
| Weight | 73.3 g (2.57 oz) |
| Mounting | DIN rail (199-DR1 / 46277-3 / EN 50022), vertical |
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-TBS
The 1734-TBS is an Allen-Bradley POINT I/O™ two-piece wiring base assembly consisting of a 1734-MB mounting base plus a 1734-RTBS removable terminal block with 8 spring-clamp terminations. Rated 28.8V DC / 120/240V AC signal terminals (2 A per signal, 10 A max field-power bus), DIN-rail mount, open-style, for use with POINT I/O adapters, power supplies, and I/O modules.
| Assembly Overview | |
|---|---|
| Catalog Number | 1734-TBS |
| Product Family | POINT I/O Wiring Base Assembly |
| Construction | Two-piece: Mounting Base (1734-MB) + Removable Terminal Block (1734-RTBS) |
| Termination Type | Spring-clamp (screwdriver-actuated) |
| Termination Positions | 8 terminals |
| Usage | Holds and wires POINT I/O modules; module inserts from above and keys mechanically |
| DIN Rail Requirement | Zinc-plated chromate-passivated steel, Allen-Bradley 199-DR1 / 46277-3 / EN 50022, secured ~200 mm (7.8 in.) intervals with end-anchors |
| RIUP (Removal/Insertion Under Power) | Not supported for the terminal base unit — backplane interruption can cause unintentional operation |
| Electrical Ratings | |
|---|---|
| Field Power Bus — Supply Voltage | 28.8V DC, 120/240V AC |
| Field Power Bus — Supply Current, Max | 10 A |
| Signal Terminal Voltage | 28.8V DC, 120/240V AC |
| Signal Terminal Current | 2 A |
| Wire Category | Determined by the installed module (see 1770-4.1 guidelines) |
| Wiring — Without Wire-End Ferrule (1734-RTBS) | |
|---|---|
| Wire Size Range (1 wire) | 0.08…2.5 mm² (28…14 AWG) |
| Wire Size (2 wires, stranded only) | 0.75 mm² (18 AWG) |
| Strip Length (1 wire) | 16 ± 1 mm (0.63 ± 0.03 in.) |
| Strip Length (2 wires) | 18 ± 1 mm (0.71 ± 0.03 in.) |
| Conductor Type | Solid or stranded copper, 75 °C (167 °F) or higher, 1.2 mm (3/64 in.) max insulation thickness |
| Wiring — With Wire-End Ferrule (1734-RTBS) | |
|---|---|
| Ferrule Standard | DIN 46228-4 and UL 486F (insulating collar recommended) |
| Wire Size Range | 0.75…1.5 mm² (18…16 AWG) |
| Additional Wire Size | 0.50 mm² (20 AWG) |
| Strip Length (0.75…1.5 mm²) | 14.5 ± 0.4 mm (0.57 ± 0.016 in.) |
| Sleeve Length (0.75…1.5 mm²) | 12 mm (0.47 in.) |
| Strip Length (0.50 mm²) | 12.5 ± 0.4 mm (0.49 ± 0.016 in.) |
| Sleeve Length (0.50 mm²) | 10 mm (0.393 in.) |
| Note | TWIN wire-end ferrules not recommended |
| Environmental | |
|---|---|
| Operating Temperature | -20…+55 °C (-4…+131 °F) per IEC 60068-2-1, 2-2, 2-14 |
| Surrounding Air, Max | 55 °C (131 °F) |
| Non-Operating Temperature | -40…+85 °C (-40…+185 °F) |
| Relative Humidity | 5…95% non-condensing (IEC 60068-2-30 Test Db) |
| Vibration | 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 Test Ea) |
| Pollution Degree | 2 — industrial environment |
| Overvoltage Category | II per EN/IEC 60664-1 |
| Max Altitude (no derating) | 2000 m (6562 ft) |
| Enclosure Type Rating | None (open-style); requires user enclosure |
| Certifications & Compliance | |
|---|---|
| c-UR-us | UL Recognized Component — Industrial Control Equipment (UL File E195367), certified US and Canada |
| CE — Low Voltage Directive | EU 2014/35/EU — EN 61131-2 Clause 11 (Programmable Controllers) |
| CE — RoHS | EU 2011/65/EU — EN IEC 63000 (Technical Documentation) |
| UKCA — Electrical Equipment (Safety) | UK SI 2016 No. 1101 — EN 61131-2 Clause 11 |
| UKCA — RoHS | UK SI 2012 No. 3032 — EN IEC 63000 |
| Morocco | Arrêté ministériel n° 6404-15 du 1er muharram 1437 |
| End-of-Life | Separate collection from unsorted municipal waste (WEEE) |
| POINT I/O Platform Features | |
|---|---|
| Module Density | 1…8 points per module |
| Channel-Level Diagnostics | Status indicators and electronic alarm/annunciation on every channel |
| Open-Wire / Short-Circuit Detection | Per-channel with electronic feedback on select I/O modules |
| Parameter-Level Messaging | Explicit messaging to individual channel parameters |
| Removal & Insertion Under Power (RIUP) | Modules can be removed or inserted without removing power to the backplane |
| Automatic Device Replacement (ADR) | Supported — replacement modules auto-configure from controller |
| Mounting Orientation | Horizontal or vertical DIN rail; no thermal derating required |
| Studio 5000 Integration | Add-On Profiles (AOPs) in Studio 5000 Logix Designer simplify configuration |
| Embedded Control | DeviceLogix on select modules — discrete logic executes locally at the module |
| Hot-Swap Communication Interface | Producer/Consumer multicast model — multiple controllers can consume the same data |
| 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
- Sinking vs. Sourcing DC Input — The 1734-IB8K is a sinking DC input module — field devices pull the input to common (0V). Pair with sourcing field devices (e.g., PNP proximity sensors). If your field devices are sinking (NPN), use the 1734-IV8K sourcing variant instead.
- Filter Time Tuning — Input filter time is programmable per channel — default is 1 ms with a valid range of 0…65 ms. Increase the filter for contact bounce on mechanical switches; decrease for high-speed sensors. Each input is independently settable in 1 µs increments.
- Conformal Coating — The -K suffix indicates conformal-coated electronics — suitable for harsh environments with condensation, corrosive vapors, or particulate contamination. Coating adds no performance penalty and meets IPC-CC-830 Class 3.
- Terminal Base Compatibility — Mount on 1734-TB (screw-clamp) or 1734-TBS (spring-clamp) 8-terminal base. The -TOP/-TOPS one-piece bases are also compatible. Do not use -TB3/-TOP3 12-terminal bases — pin arrangement differs.
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-TBS
- Refer to the manufacturer's installation instructions for proper mounting, wiring, and configuration.
- Ensure compatibility with your existing system architecture before ordering.
- All 1734-TBS 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-TBS
The 1734-TBS by Allen-Bradley may also be found under the following alternative names, catalog numbers, or common search variations:
- 1734TBS
- Allen Bradley 1734-TBS
- Allen-Bradley 1734-TBS
- 1734 TBS
- 1734/TBS
- POINT I/O 1734-TBS
- POINTI/O 1734-TBS
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 | 0.16 lbs |
|---|---|
| Dimensions | 5.2 × 0.5 × 2.6 in |
| warranty | 2.5 Year PLC Exchange Warranty, 30 Days worry-free return from delivery |
| upc | 612598206117 |
| mpn | 1734-TBS |
| manufacturer | Allen-Bradley |
| condition | Original Packaging |
Dimensions & Weight for 1734-TBS
| Shipping Dimensions | |
|---|---|
| Weight | 0.16 lbs |
| Length | 5.2 in |
| Width | 0.5 in |
| Height | 2.6 in |
| Box Dimensions (L×W×H) | 5.2 × 0.5 × 2.6 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-TBS include a warranty?
Yes. Every 1734-TBS 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-TBS?
PLC Exchange offers a 30-day worry-free return policy. Eligibility and details: https://plcexchange.net/return-policy/
When will my 1734-TBS 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-TBS?
The 1734-TBS is manufactured by Allen-Bradley. PLC Exchange is an independent reseller specializing in Allen-Bradley industrial automation products.
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