MTL5541 Product Introduction

Product Overview

MTL5541 is an isolated safety barrier module developed by MTL (now part of Eaton Group) in the UK, specifically designed for industrial automation. It is mainly used for signal transmission and energy limitation between hazardous and safe areas. This module supports isolated transmission of 4-20mA current signals and is compatible with the HART communication protocol, making it suitable for intrinsic safety and explosion-proof scenarios in industries such as petroleum, chemical, and metallurgy.

Main features and advantages

Intrinsic safety protection: By using voltage limiting, current limiting, and isolation technologies, ensure energy isolation between hazardous area equipment and safe area control systems to prevent explosions caused by sparks or overheating.

HART communication support: Overlay HART digital signals in a 4-20mA loop to achieve bidirectional communication, suitable for parameter configuration and status monitoring of smart transmitters.

Flexible power supply mode: supports 2-wire or 3-wire transmitter power supply, provides fully floating DC power supply, and adapts to different sensor needs.

Wide temperature range adaptability: Operating temperature range of -20 ℃ to+65 ℃, storage temperature range of -40 ℃ to+80 ℃, meeting the requirements of harsh industrial environments.

Compact modular design: Installed with DIN rails, it has a small volume (only 7mm thickness), supports high-density integration, and saves space.

Multiple protection mechanisms: Built in overcurrent, overvoltage, and overheating protection to ensure long-term stable operation.

technical specifications

Parameter Description

Model MTL5541 (active power supply type), MTL5541S (passive signal output type)

Brand MTL (Eaton)

Signal range 4-20mA (standard), 0-24mA (over range)

Safe area load resistance MTL5541: 0-360 Ω at 24mA, 0-450 Ω at 20mA; MTL5541S: Maximum 600 Ω

Maximum voltage source 24V DC

Transmitter voltage 16.5V (20mA load)

Communication protocol HART (supported by terminals 1-2)

Temperature drift<0.8 μ A/° C

Response time ≤ 50 μ s (reaching 10% of the final value)

Installation method DIN rail type

ATEX, IECEx, FM, CSA and other explosion-proof certifications

application area

Petrochemical industry: Isolation and energy limitation of instrument signals in hazardous areas, such as power supply and communication of pressure and temperature transmitters.

Industrial automation: safe signal transmission between PLC and on-site equipment, suitable for scenarios such as robots and CNC machine tools.

Electricity and Energy: Control system integration with strict intrinsic safety requirements for nuclear power plants, gas stations, and other facilities.

Process control: Isolation and protection of multi parameter monitoring and execution mechanisms in chemical production.

 

MTL5541产品简介

产品概述

MTL5541是英国MTL公司（现属伊顿集团）研发的隔离式安全栅模块，专为工业自动化领域设计，主要用于危险区域与安全区域之间的信号传输与能量限制。该模块支持4-20mA电流信号的隔离传输，并兼容HART通信协议，适用于石油、化工、冶金等行业的本质安全防爆场景。

主要特点和优势

本质安全防护：通过限压、限流和隔离技术，确保危险区域设备与安全区域控制系统的能量隔离，防止火花或过热引发爆炸。

HART通信支持：在4-20mA回路中叠加HART数字信号，实现双向通信，适用于智能变送器的参数配置与状态监测。

灵活供电模式：支持2线制或3线制变送器供电，提供全悬浮直流电源，适应不同传感器需求。

宽温域适应性：工作温度范围-20℃至+65℃，存储温度-40℃至+80℃，满足严苛工业环境要求。

紧凑模块化设计：采用DIN导轨安装，体积小巧（仅7mm厚度），支持高密度集成，节省空间。

多重保护机制：内置过流、过压、过热保护，确保长期稳定运行。

技术规格

参数说明

型号MTL5541（有源供电型）、MTL5541S（无源信号输出型）

品牌MTL（伊顿）

信号范围4-20mA（标准），0-24mA（超量程）

安全区域负载电阻MTL5541：24mA时0-360Ω，20mA时0-450Ω；MTL5541S：最大600Ω

最大电压源24V直流

发送器电压16.5V（20mA负载）

通信协议HART（端子1-2支持）

温度漂移<0.8μA/°C

响应时间≤50μs（达到终值的10%）

安装方式DIN导轨式

认证ATEX、IECEx、FM、CSA等防爆认证

应用领域

石油化工：危险区域仪表信号隔离与能量限制，如压力、温度变送器的供电与通信。

工业自动化：PLC与现场设备间的安全信号传输，适用于机器人、数控机床等场景。

电力与能源：核电站、燃气站等本质安全要求严格的控制系统集成。

过程控制：化工生产中多参数监测与执行机构的隔离保护。

 

 

Choose Shenzhen Changxin for worry-free after-sales service and high-quality products. We only cooperate with first-tier brand manufacturers in the industry. Our products are imported and comprehensive. We provide thoughtful pre-sales service, communicating multiple times with customers about product models, quality, prices, and delivery schedules to jointly confirm the solutions and address users’ concerns in advance. Business execution is in place, ensuring on-time delivery of ordered products and formulating a comprehensive delivery plan to guarantee the project schedule. We also assist users in handling acceptance procedures.

Our after-sales service is impeccable. For any problems during the warranty period, we only replace, not repair. We never shirk responsibilities or pass the buck when encountering problems. Our service hotline is available 24/7: 18150087953

SOLEMN COMMITMENT

1. For all items, modules, and cards sold by our company, if any quality problems occur during normal use within the warranty period, we will provide free replacements without any excuse or delay.
2. For non-discontinued materials and equipment that are out of the warranty period, we only charge the cost of relevant accessories for quality problems.
3. For discontinued materials and equipment, we provide alternative models and equipment replacement process services.
4. For the materials and equipment purchased by customers, we offer lifetime free system software upgrades and provide relevant technical documents for free.
5. We regularly follow up on the usage of the materials purchased by customers and promptly solve any problems.
6. Our company’s hotline provides 24-hour service, and we will respond to customers’ questions within 1 hour.
7. For any other matters not covered, our company adheres to the attitude of “thoughtful service and full responsibility” and solves problems from the customer’s perspective in a practical way. With a serious and rigorous corporate style, we wholeheartedly serve every customer.

The company mainly imports PLC modules, programmable controllers, servo control systems and DCS spare parts, such as: ABB, AB (Rockwell), GE (General Electric), Bentley, Honeywell, Emerson, Motorola, Invensys, Westinghouse, etc. The company has established close cooperative relations with many world-renowned PLC and DCS product maintenance service providers, and can directly purchase from abroad, providing equipment and spare parts from different countries and manufacturers.

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If you have any defects or need to import PLC, DCS spare parts, please contact our team, we will help you find reliable and high-quality products super quickly, while shortening the delivery time to ensure that your equipment can operate normally in the right environment. On time.

Professionally provide: PLC programmable control system, distributed control system (DCS), safety instrument system (SIS), ESD system, vibration monitoring system, turbine compressor control system (CCS) and other PLC modules, various industrial control systems, system modules, CPU, IO module, DO module, AI module, DI module, network communication module, Ethernet module, motion controller, analog input module, analog output module, switch input module, switch output module, module redundancy, power supply module, relay output unit, relay input unit, processing unit.

Products are widely used in: electricity, petroleum, mine hoisting, ports, heating, gas, water supply, sewage treatment, metallurgy, papermaking, textile, chemical industry, water conservancy and other modern industrial fields!

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