Emerson KL3103X1-BA1 | 24 VDC Dry Contact I.S. CHARM

Product Description

The KL3103X1-BA1 is an intrinsically safe (I.S.) digital input CHARM module from Emerson, designed for DeltaV systems. It supports 24 VDC dry contact signals, allowing direct connection of field devices such as switches, pushbuttons, and contact closures. This module ensures safe and reliable monitoring in hazardous locations, integrating seamlessly into the DeltaV CHARM architecture.

Engineered for Zone 2 / Class I Division 2 environments, the KL3103X1-BA1 combines intrinsic safety with robust environmental tolerance, including resistance to vibration, shock, and airborne contaminants. Its compact form factor and low-power CHARM bus interface facilitate easy installation and modular expansion.

Core Technical Specifications

• Model: KL3103X1-BA1

• Module Type: Intrinsically Safe Digital Input (DI) CHARM

• Signal Type: 24 VDC dry contact

• Safety Classification: Intrinsically Safe (I.S.)

• CHARM Bus Power: +6.3 VDC, 32 mA

• Field Circuit Power: +24 VDC, ~10 mA

• Channels: Single-channel input

• Terminal Block Key: 2C

• Operating Temperature: –40 °C to +70 °C

• Relative Humidity: 5–95% RH, non-condensing

• Shock Resistance: 10 g, half-sine wave, 11 ms

• Vibration: 2–13.2 Hz: 1 mm peak-to-peak; 13.2–150 Hz: 0.7 g

• Airborne Contaminants Rating: ISA-S71.04 Class G3

• Weight: 0.18 lbs

Safety & Compliance

• Hazardous Area Ratings:

• II 3G Ex nA [nL] IIC Gc

• II 3G Ex ec [ic] IIC Gc

• Class I, Division 2, Groups A–D

• Zone 2 AEx/Ex ec [ic] IIC Gc

• Certifications: ATEX, IECEx, FM, UKEX

• Installation Note: Module must not be inserted or removed while energized unless the area is confirmed safe

Functional Advantages

• Intrinsically safe design suitable for hazardous areas

• Supports 24 VDC dry contact inputs for direct field device monitoring

• Compact CHARM format allows easy integration and modular expansion

• Robust diagnostics ensure reliable operation of connected field devices

• Wide environmental tolerance for harsh industrial conditions

Applications

• Monitoring switches and pushbuttons in oil and gas facilities

• Remote hazardous area I/O panels

• Chemical and petrochemical process control systems

• DeltaV system integration for single-channel dry contact inputs

FAQ

Q: Is this module suitable for hazardous Zone 2 locations?
A: Yes, the KL3103X1-BA1 is certified intrinsically safe for Zone 2 / Class I Div. 2 hazardous areas.

Q: Can it monitor multiple devices?
A: This module provides a single-channel input; multiple modules can be installed for multi-device monitoring.

Q: Does it require calibration?
A: No calibration is required, and the module has no user-serviceable parts.