FBM26B / FBM27B

General Information

Manufacturer: Foxboro (Schneider Electric)

Model: FBM26B / FBM27B

Series: I/A Series EcoStruxure DCS Compact 200 Series

Type: 16-Channel Galvanically Isolated Discrete Input Module

Function: Field discrete signal acquisition for dry contact and high voltage status input

Environment: Class G3 harsh industrial environment

Certification: CE, ATEX, CSA; Class 1 Division 2 / Zone 2 hazardous area approved

Hot Swap: Supported

Redundancy: Supports 1:1 redundant configuration

Key Specifications

Channel: 16 galvanically isolated discrete input channels

Input Type: Dry contact sense, 125 VDC voltage sense

Logic Level:

Logic ON: 90–140 VDC

Logic OFF: 0–40 VDC

Isolation: Per-channel galvanic isolation

Module Power: 24 VDC

Power Consumption: ≤ 3 W

Operating Temperature: 0°C to +60°C

Storage Temperature: -40°C to +85°C

Humidity: 5%–95%, non-condensing

Withstand Voltage: 600 VAC 1 minute isolation withstand

Main Features

16 fully isolated input channels avoid signal crosstalk and fault propagation.

Compatible with dry contact and 125 VDC high voltage input for power plant and legacy system.

Configurable input debounce time to filter jitter and false signals.

Hot swappable design allows online replacement without system shutdown.

Supports 1:1 redundant pairing to improve system reliability.

Built-in LED indicators for module running status and each channel diagnosis.

Applications

Widely used in power generation, chemical, oil & gas and water treatment industries.

Applied for MCC status monitoring, relay cabinet contact signals, limit switches and 125 VDC interlock signal collection in Foxboro I/A Series DCS.