MTL3021 MTL Instruments Solenoid/Alarm Driver

MTL3021 Hazardous Area Control Interface: Safe Control for Dangerous Environments

The MTL3021 control interface from MTL Instruments provides reliable operation in hazardous locations. This robust device controls Zone 0 and IIC area equipment from safe-area control signals. It delivers dependable performance for critical industrial automation and safety systems.

Core Functionality and Operation

• The MTL3021 safely controls Zone 0 and IIC hazardous area devices from standard control signals.
• It effectively drives solenoids, alarm systems, and intrinsic safety certified loads.
• The interface accepts a flexible 20-35V DC input voltage range for various applications.
• Its fully floating design allows for flexible cable grounding configurations in the field.

Detailed Technical Specifications

• Brand: MTL Instruments
• Model: MTL3021
• Output Voltage: Provides up to 28V for driving connected loads
• Current Limit: Protected output with 65mA maximum current
• Response Time: Fast 10ms response for immediate control actions
• Input Range: Compatible with 20-35V DC power supplies
• Power Consumption: Draws 95mA at typical 24V operation
• Ripple Performance: Maintains clean power with less than 0.5% ripple

Safety Certifications and Compliance

• The unit carries Zone 0, IIC, T4-T6 certification for hazardous environments.
• It meets Division 1, Group A compliance requirements for North America.
• FM Entity Parameters ensure safety with Voc=28V and Isc=93mA limits.
• Energy storage limits maintain safety with Ca=0.13µF and La=4.0mH values.

Electrical Performance Characteristics

• Input Current Formula: 20mA + (35V ÷ input voltage) × output current (mA)
• Maximum Output: Delivers 28V from a 300Ω load for various applications.
• Power Dissipation: Typical 1.9W at 24V operation for efficient performance.
• These specifications ensure reliable operation across different load conditions.

Common Industrial Applications

• Hazardous area solenoid control in process automation systems.
• Intrinsic safety alarm systems for emergency notifications.
• Process automation interfaces between control rooms and field devices.
• Emergency shutdown circuits for critical safety applications.

Package Contents and Accessories

• One MTL3021 control interface unit weighing 140g.
• One 200mA replaceable fuse for circuit protection.
• Complete installation documentation with wiring diagrams.
• All necessary mounting accessories for panel installation.

Ordering and Support Information

• This product is currently in stock and ready for immediate shipment.
• We provide global express delivery through FedEx, UPS, and DHL carriers.
• Our expert team offers 24/7 technical support for all your questions.