MTL4516 Digital Input Isolator with Relay Output

Product Short Description

Technical Specifications

Input Channels: 2-channel digital input (switch or proximity sensor compatible).
Output Type: Relay output with changeover (C/O) contacts.
Isolation: High-voltage isolation between input, output, and power circuits (up to 2500V).
Power Supply: 24V DC or 120V AC (field-side powering).
Mounting: DIN rail-mounted for compact panel installation.
Environmental Resistance: Operates in temperatures from -20°C to +70°C and withstands vibration and humidity.
Certifications: Complies with ATEX, IECEx, and other international safety standards for hazardous areas.

Functional Features

Dual-Channel Input: Monitors two independent digital signals simultaneously, reducing hardware complexity.
Relay Output: Provides isolated changeover contacts for reliable switching of external devices (e.g., alarms, valves).
High Isolation: Prevents electrical noise interference and ensures safe operation in explosive environments.
Easy Installation: DIN rail mounting and plug-in terminals simplify wiring and maintenance.
Status Indication: LED indicators for power, input, and output status monitoring.
Redundant Configuration: Optional redundant setup for critical applications requiring fail-safe operation.

Application Scenarios

Oil and Gas Industry: Monitors valve positions, emergency stop signals, and gas detection sensors in offshore platforms and refineries.
Chemical Processing: Ensures safe operation of reactors, pumps, and storage tanks by isolating control signals from hazardous zones.
Power Generation: Transmits switch status signals in turbine control systems and electrical substations.
Water and Wastewater Treatment: Controls pump and valve actuators while maintaining electrical isolation in wet environments.
Mining Industry: Provides reliable signal transmission in underground mines for ventilation and gas monitoring systems.
Transportation: Supports signaling and control applications in railway and subway systems.

Advantages

Enhanced Safety: Intrinsic safety design prevents electrical sparks, making it suitable for Zone 0 hazardous areas.
Reliable Performance: High isolation voltage and robust construction ensure stable operation in harsh industrial conditions.
Scalability: Supports up to two input channels, accommodating diverse sensor types and reducing system costs.
Cost-Effective: Reduces wiring complexity by transmitting multiple signals over a single cable pair.
Interoperability: Compatible with major DCS/PLC brands (e.g., Honeywell, Yokogawa, Siemens) for seamless integration.