Product Name:FLEX I/O Terminal Base Units
Brand Name:Allen-Bradley
Model Number:1794-TB3S
Country of Origin:USA
Warranty:12 Months
Whatsapp：+86 18159889985
Email：[email protected]
Brand Name: |
Allen-Bradley |
Model Number: |
1794-TB3S |
Country of Origin: |
USA |
Packaging Details: |
Original new Factory Sealed |
Delivery Time: |
in stock |
Payment Terms: |
T/T |
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Sales Manager: |
Stella |
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Send an email: |
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Contact in Whatsapp: |
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Parameter |
Specification |
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Catalog Number |
1794-TB3S |
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Manufacturer |
Rockwell Automation / Allen-Bradley |
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Series |
FLEX I/O |
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Termination Type |
Spring clamp (tool-free) |
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I/O Capacity |
16 I/O terminals |
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Common Terminals |
18 |
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Voltage Terminals |
18 |
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Max Supply Voltage (V/COM) |
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Max Current (V/COM) |
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FlexBus Current |
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I/O Terminal Current |
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Isolation Voltage |
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Wire Size |
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Strip Length |
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Terminal Screw Torque |
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Dimensions (H x W x D) |
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Weight |
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Operating Temperature |
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Storage Temperature |
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Relative Humidity |
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Vibration |
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Operating Shock |
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Non-Operating Shock |
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Mounting |
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Hazardous Location Approval |
Class I, Division 2, Groups A, B, C, D; Zone 2 |
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Certifications |
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Conformal Coating |
K suffix available for noxious gas environments |
The 1794-TB3S is a spring-clamp terminal base unit from Allen‑Bradley’s FLEX I/O family, engineered for fast, tool‑free wiring in distributed control architectures. This 1794-TB3S base provides 16 I/O points with 18 common and 18 voltage terminals, supporting loads up to 125V AC/DC and 10A. The spring‑clamp design of the 1794-TB3S enables secure connections without screwdrivers, reducing installation time significantly. Ideal for demanding industrial environments, the 1794-TB3S operates from -20°C to 70°C and carries Class I Division 2 hazardous location approval.
Provides the physical mounting interface and electrical connections for FLEX I/O modules
Distributes field‑side power and signal wiring between I/O modules and field devices
Enables live module insertion and removal (RIUP) without system shutdown
Transmits FlexBus communication signals (5V DC, 640 mA) between the adapter and I/O modules
Offers spring‑clamp termination for rapid, secure wire connections
Tool‑Free Termination: Spring‑clamp technology cuts installation time by up to 40% vs. screw‑type bases
Vibration Resistance: Superior connection stability in high‑vibration environments
Hot‑Swappable: Replace I/O modules without disturbing field wiring
Hazardous Location Ready: Class I Division 2 and Zone 2 approved for use in explosive atmospheres
Conformal Coating Option: K‑suffix models resist noxious gases per ISA/ANSI‑71.04 Class G3
Global Certifications: UL, CSA, CE, Ex, and TÜV compliant
Q1: What is the difference between the 1794-TB3S and the 1794-TB3?
A1: The 1794-TB3S uses spring‑clamp termination for tool‑free wiring, while the 1794-TB3 uses cage‑clamp (screw) termination.
Q2: What wire sizes does the 1794-TB3S accept?
A2: It accepts 22–12 AWG (0.34–3.3 mm²) solid or stranded copper wire.
Q3: Can the 1794-TB3S be used in hazardous locations?
A3: Yes, it is approved for Class I Division 2 Groups A, B, C, D and Zone 2 hazardous locations.
Q4: Is the 1794-TB3S compatible with all FLEX I/O modules?
A4: It supports digital, analog, and specialty FLEX I/O modules that require a 3‑wire terminal base.
Q5: Does the 1794-TB3S support hot-swapping?
A5: Yes, the FLEX I/O system supports Removal and Insertion Under Power (RIUP) for module replacement without system shutdown.
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