Emerson KL3103X1-LS1 | 24 VDC Dry Contact I.S. CHARM

Product Description

The KL3103X1-LS1 is an intrinsically safe (I.S.) digital input CHARM module from Emerson, tailored for DeltaV systems. Designed for 24 VDC dry contact signals, it allows direct connection of field devices including limit switches, pushbuttons, and contact closures. This module ensures reliable monitoring and safe operation in hazardous areas.

Its compact CHARM format enables seamless integration into DeltaV I/O racks. Built for Zone 2 / Class I Division 2 environments, the KL3103X1-LS1 offers robust resistance against vibration, shock, and airborne contaminants while maintaining low-power consumption on the CHARM bus. The keyed LS1 terminal block guarantees correct installation and wiring safety.

Technical Specifications

• Model: KL3103X1-LS1

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

• Signal Type: 24 VDC dry contact

• Safety: Intrinsically Safe (I.S.)

• CHARM Bus Power: +6.3 VDC, 32 mA

• Field Circuit Power: +24 VDC, 28 mA max

• Channels: Single-channel input

• Terminal Block Key Position: LS1

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

• Humidity: 5–95% RH, non-condensing

• Shock: 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: ISA-S71.04-1985 Class G3

• Weight: 0.25 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: Must not be inserted or removed while energized unless the area is confirmed non-hazardous

Key Highlights

• Designed for 24 VDC dry contact inputs from field devices

• Intrinsically safe construction suitable for hazardous locations

• Wide operating range (–40 °C to +70 °C)

• LS1 keyed terminal block ensures correct installation and wiring

• Compact CHARM module simplifies integration and system expansion

Applications

• Monitoring limit switches and pushbuttons in hazardous areas

• DeltaV I/O panels requiring single-channel dry contact inputs

• Oil, gas, and chemical processing facilities

• Remote field device integration in Zone 2 / Class I Div. 2 environments

FAQ

Q: Is this module suitable for Zone 2 hazardous areas?
A: Yes, the KL3103X1-LS1 is intrinsically safe and certified for Zone 2 / Class I Div. 2.

Q: How many channels does it support?
A: This is a single-channel digital input module. Multiple modules can be installed for multi-device monitoring.

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