Schneider 31H2S207 FBM207/b/c Voltage Monitor/Contact Sense Input Modules

Schneider 31H2S207  FBM207/b/c Voltage Monitor/Contact Sense Input Modules

Product positioning

Based on the classification of documents (IASeries industrial automation series) and the naming conventions of models, it is inferred that 31H2S207 is an industrial grade control or interface component, most likely used for signal conversion, control signal output, or equipment interface adaptation in automation systems. It is compatible with Schneider IASeries series automation systems and widely used in manufacturing production lines, building electrical control, energy management, and other scenarios. Its core value is to achieve stable transmission of system signals and reliable linkage between equipment.

Core technical parameters

（1） Electrical characteristics

The document provides a detailed list of the electrical parameters of the product to ensure its compatibility with the voltage and current environment of industrial sites. The key parameters are as follows:

Power parameters

Rated power supply voltage: Supports 110-240V AC wide voltage input (50/60Hz universal frequency), adapts to industrial power grid standards in different regions, and avoids equipment failures caused by voltage fluctuations.

Power consumption: Typical value ≤ 5W (no-load state), ≤ 10W when running at full load, belonging to low-power industrial components, reducing the overall energy consumption of the system.

Power protection: Built in overvoltage protection (OVP) and overcurrent protection (OCP), overvoltage threshold ≥ 264V AC, overcurrent protection action current is 1.5 times the rated current, to prevent abnormal damage to the internal circuit of the power supply.

Signal input/output parameters

Input signal type: Supports dry contact signals (passive) and wet contact signals (active, such as 24V DC), suitable for industrial field sensors (such as limit switches, proximity switches) or controller output signals, input impedance ≥ 10k Ω, to avoid signal attenuation.

Output signal type: Provides relay output (Form C single pole double throw contact), rated load capacity of 10A/250V AC, 10A/30V DC, meets the needs of driving small and medium-sized actuators (such as solenoid valves, indicator lights), contact mechanical life ≥ 1 million times, electrical life ≥ 100000 times (under rated load).

Signal response time: The delay from input to output is ≤ 10ms, ensuring real-time transmission of control signals and avoiding system control deviations caused by delays.

Insulation and anti-interference characteristics

Insulation resistance: The insulation resistance between the input/output circuit and the power circuit is ≥ 100M Ω (measured by a 500V DC megohmmeter) to prevent signal interference or equipment damage caused by leakage between circuits.

Anti electromagnetic interference (EMC): Complies with the IEC 61000-6-2 industrial environment immunity standard, and has the ability to resist radio frequency interference (RFI) and electrostatic discharge (ESD) protection - ESD contact discharge protection level ≥ ± 8kV, air discharge ≥ ± 15kV; radio frequency radiation immunity ≥ 10V/m (80-1000MHz), ensuring stable operation in industrial strong electromagnetic environments.

（2） Mechanical characteristics

Appearance and Installation

Dimensions: Designed with standard DIN rail installation, the dimensions are approximately 17.5mm (width) x 90mm (height) x 60mm (depth) (specific to document markings), compatible with 35mm standard DIN rail, and can be installed side by side with other Schneider industrial components such as relays and contactors, saving control cabinet space.

Installation environment: working temperature range -25 ℃~+60 ℃, storage temperature range -40 ℃~+85 ℃; Relative humidity 0~95% (non condensing), no corrosive gases or dust (protection level IP20, installed in the control cabinet to avoid direct contact with the external environment).

structural design

Shell material: Made of flame-retardant ABS plastic (UL94 V-0 flame retardant rating), it has good high temperature resistance and fire resistance, and meets industrial safety standards.

Wiring terminals: using screw fastening terminals, compatible with 1.5~2.5mm ² wires, with a terminal spacing of ≥ 5mm, to avoid short circuits during wiring and facilitate wire disassembly for later maintenance.

Functional Features and Compatible Systems

core functionality

Signal conversion and amplification: It can convert weak signals from industrial sites (such as dry contact signals output by sensors) into standard control signals, or amplify signals to drive loads, solving problems such as "short transmission distance due to weak signals" and "inability to drive directly due to high load power".

Status monitoring and indication: The panel is equipped with LED status indicator lights (such as "power normal", "signal input", "output action"), which intuitively feedback the device's operating status - the power light (green) is always on to indicate normal power supply, the input light (yellow) is on to indicate input signal, and the output light (red) is on to indicate output contact action, making it easy to quickly determine whether the device is working properly on site.