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Rectangular open-style PLC module with front terminal block and side latch

BFKK

BFKK 1794-IB32 Flex I/O 32-Input Sinking Module 50V

SKU CH-VRKS-Y73RV

Provides 32 sinking digital inputs with 50 V isolation for Flex I/O systems

  • 32 sinking inputs simplify high-density digital sensing
  • 50 V continuous isolation protects controller from field transients
  • Open-style form factor fits directly into Flex I/O 1794 backplanes
  • Factory-sealed condition guarantees unused, original-spec hardware
  • Allen-Bradley PLC heritage ensures proven industrial reliability

32-Channel Sinking Input Module

The BFKK 1794-IB32 is a FLEX I/O digital input module designed for programmable logic controller systems. It provides 32 current-sinking input channels in an open-style form factor. This unit suits automation engineers expanding discrete input density on a 1794-series chassis.

50 Volt Isolation and Open-Style Constraints

Each channel operates with a continuous isolation voltage of 50 Volts, limiting the module to low-voltage sensor circuits. The lack of an enclosure rating means the board must reside inside a protective cabinet or rated enclosure. Wiring length and noise immunity are constrained by the sinking topology and isolation level.

DIN-Rail Mounting and Wiring Pitfalls

Installation uses the standard FLEX I/O terminal base that locks onto a DIN rail, so no specialised tools are required. The most common issues are reversed polarity on sinking inputs and exceeding the 50 Volt isolation when connecting field devices. Verify sensor output types match sinking logic before applying power.

How it compares

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Price $473.99
Pricier than about 91% of the 3,875 comparable items (median $23.99).

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Specifications

No published specifications for this item yet.

Questions about this item

What input configuration does the 1794-IB32 module provide?

The module provides 32 current-sinking digital inputs for use with FLEX I/O systems.

How does the 50 V isolation voltage affect installation?

The 50 V continuous isolation rating separates field wiring from the backplane, allowing standard industrial sensor circuits to connect directly.

Which backplane standard does the 1794 series use?

The module mounts on the Allen-Bradley FLEX I/O backplane, which carries power and communication for the 1794 series I/O.

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