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Product Introduction: Honeywell 2MLL-EFMTB
The Honeywell 2MLL-EFMTB is a robust and high-performance terminal block assembly designed specifically for industrial automation, process control, and distributed control system (DCS) applications. Manufactured with precision to meet the stringent demands of modern control systems, this component is widely used in Honeywell’s Experion PKS and TPS platforms.
This model serves as a field termination assembly (FTA), facilitating the reliable connection of field wiring to the system I/O modules. Its efficient and modular design ensures simplified installation, consistent signal integrity, and long-term durability in harsh industrial environments. The 2MLL-EFMTB is engineered with a clear focus on operational safety, serviceability, and system uptime — making it an ideal choice for critical industrial infrastructures.
Product Advantages
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Industrial-Grade Reliability: Built with Honeywell’s rigorous quality standards to ensure high durability in demanding conditions.
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Enhanced Safety: Includes protective components that shield control systems from surges and electrical faults.
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Simplified Installation: Pre-assembled terminal layout reduces engineering and installation time.
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Flexible Compatibility: Seamlessly integrates with various Honeywell controllers and I/O modules.
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Low Maintenance Design: Long operational life with minimal need for field maintenance.
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Compact Footprint: Optimized for space-saving cabinet configurations while maintaining accessibility.
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Signal Integrity: Ensures stable and accurate transmission of analog and digital signals between field instruments and control systems.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model Number | 2MLL-EFMTB |
| Product Type | Field Terminal Block (FTA) Assembly |
| Series | 2MLL Series |
| Application | I/O Termination for Process Control Systems |
| Compatibility | Honeywell Experion PKS, TPS, TDC3000 |
| Connection Type | Screw Terminal |
| Channels Supported | Up to 32 channels (depends on configuration) |
| Voltage Rating | 24 VDC (nominal), 250 V max |
| Current Rating | Up to 2 A per channel |
| Insulation Resistance | > 100 MΩ @ 500V DC |
| Operating Temperature | -20°C to +60°C |
| Storage Temperature | -40°C to +85°C |
| Mounting Type | DIN Rail / Panel Mount |
| Enclosure Material | Flame-retardant thermoplastic |
| Dimensions | 195 × 120 × 85 mm |
| Weight | 1.4kg |
| Approvals | CE, UL, CSA, RoHS compliant |
Applications
The Honeywell 2MLL-EFMTB is ideally suited for use in the following industrial sectors:
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Oil & Gas Refineries – For robust and safe I/O signal routing.
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Chemical & Petrochemical Plants – Where process integrity and fault tolerance are critical.
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Power Generation Facilities – Enabling secure data and control signal connectivity.
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Water Treatment Plants – Ensuring dependable environmental process control.
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Pulp and Paper Industry – Supporting automation systems in continuous production environments.
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Pharmaceutical Manufacturing – Maintaining precision in validated automation processes.
Product Features & Benefits
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High-Density Termination: Allows for connection of multiple I/O channels in a compact space.
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Status Indication Options: Some variants offer LEDs for fault and signal monitoring.
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Removable Terminal Strips: Enhances ease of wiring and replacement.
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Modular Design: Enables flexible configuration and field expandability.
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Shock and Vibration Resistant: Designed for long-term use in high-vibration environments.
Frequently Asked Questions (FAQ)
Q1: What is the primary function of the 2MLL-EFMTB?
A1: It acts as a field terminal assembly, linking field wiring to Honeywell’s I/O modules for control and monitoring.
Q2: Is this terminal block compatible with non-Honeywell systems?
A2: It is primarily designed for Honeywell systems; compatibility with other systems is not guaranteed.
Q3: Can the 2MLL-EFMTB be mounted on any DIN rail?
A3: Yes, it supports standard DIN rail mounting as well as panel mounting.
Q4: What certifications does this product have?
A4: It is CE marked and compliant with UL, CSA, and RoHS standards.
Q5: Does it support both analog and digital signal wiring?
A5: Yes, the assembly supports both analog and digital I/O terminations.
Q6: What type of wires can be connected to this terminal block?
A6: Typically supports 18–24 AWG solid or stranded wires via screw terminals.
Q7: What kind of maintenance does it require?
A7: Minimal; visual inspections and occasional screw tightening are usually sufficient.
Q8: Is it suitable for outdoor installations?
A8: No, it should be installed in a protected, enclosed panel or cabinet.
Q9: Can this model be customized for additional indicators?
A9: Some configurations may offer LED indication; check with Honeywell for options.
Q10: What happens if a channel is overloaded?
A10: The protective circuitry will typically isolate the fault to prevent system damage.
Related Models (Same Series / Functional Alternatives)
| Model | Description | Channels | Mount Type | Application |
|---|---|---|---|---|
| 2MLL-EFMRB | Relay Field Termination Block | 16 | DIN Rail | Relay output I/O |
| 2MLL-EFMTA | Analog FTA with Shielded Terminals | 32 | DIN Rail | Analog input/output |
| 2MLL-EFMDC | Digital Contact Termination Block | 32 | DIN Rail | Digital I/O |
| 2MLL-EFMPL | Pulse Signal FTA for Frequency Inputs | 16 | Panel Mount | Pulse/frequency signal inputs |
| 2MLL-EFMTD | Dual-Redundancy Termination Block | 32 | DIN Rail | Redundant control applications |
| 2MLL-EFMDI | Digital Isolated FTA | 32 | DIN Rail | Isolated digital input channels |
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| Model | Description | Application | System Series |
|---|---|---|---|
| CC-PCF901 | Fieldbus Processor Module | Control & Data Integration | C300 Controller |
| CC-PDIL01 | Digital Input Logic Module | Digital Input Monitoring | C300 Controller |
| CC-TDOR11 | Digital Output Redundant Module | Redundant Digital Output | C300 Controller |
| CC-TFB811 | Fieldbus Interface Module | Fieldbus Communications | C300 Controller |
| CC-PAIH02 | Analog Input Module | AI Signal Processing | C300 Controller |
| CC-PAON01 | Analog Output Module | AO Signal Control | C300 Controller |
| MC-TAMR03 | AM Relay Termination Assembly | Relay Output Termination | TDC3000 Series |
| CC-PAIM01 | Multipoint Analog Input Module | Multi-AI Signal Interface | C300 Controller |
