Dual-Channel Intrinsically Safe Switch/Proximity Detector Interface for Hazardous Environments
The MTL 5017 is a high-reliability dual-channel interface module designed for critical applications in explosive atmospheres, now superseded by the MTL 5517 within Eaton’s MTL 5500 series . Engineered for Zone 0/IIC/T4-T6 hazardous areas, this DIN rail-mounted isolator provides galvanic isolation between field devices and control systems while driving relay outputs with phase reversal and line fault detection (LFD) capabilities. Its 10.5V DC input (800Ω, 14mA) supports Namur-compliant proximity detectors and switches, ensuring robust signal conditioning in petrochemical plants and offshore platforms . The module’s 0.5A/35V DC relay contacts offer fail-safe operation for alarms, solenoid valves, or motor starters, with LED indicators for power, output status, and fault conditions. Unlike single-channel competitors, the MTL 5017’s dual-channel design reduces panel space by 50%, making it ideal for retrofitting legacy systems where compactness is critical .
Certified Safety and Flexible Configuration for Industrial Critical Infrastructure
Compliant with ATEX, IECEx, and UL Class I Div 1 standards, the MTL 5017 ensures safe integration into global industrial networks . Its line fault detection identifies open/short circuits in field wiring, triggering relay deactivation to prevent hazardous arcs—a feature unmatched by basic isolators in the market . The module’s phase reversal via removable wire links allows engineers to configure alarm states based on sensor behavior, enhancing diagnostic flexibility in process control systems. With a -20°C to +60°C operating range and live maintenance capability, it delivers consistent performance in extreme temperatures and high-vibration environments typical of mining and chemical processing . While newer models like the MTL 5517 offer advanced diagnostics, the MTL 5017 remains a cost-effective solution for non-SIL applications requiring basic safety functionality .
Compact Modular Design for Legacy System Modernization
The MTL 5017’s 16mm width and removable terminal blocks simplify installation and maintenance in space-constrained control panels . Its intrinsic safety certification (Uo=25V, Io=147mA) eliminates the need for external barriers in Zone 0, reducing component complexity and installation time compared to traditional Zener barriers . The module’s LED status indicators and user-selectable LFD thresholds streamline troubleshooting, while its DIN rail mounting ensures compatibility with industry-standard enclosure systems . Although discontinued, the MTL 5017 remains a viable option for retrofitting older installations, particularly where SIL compliance is not mandatory. For new projects, Eaton recommends the MTL 5517, which adds Hart protocol support and redundant power inputs for smarter, more connected industrial automation .
| Attribute | Specification |
| Product Type | Dual-Channel Intrinsically Safe Switch/Proximity Detector Interface for Hazardous Areas |
| Series | MTL 5000 (Eaton) |
| Input Signal | 10.5V DC (800Ω, 14mA) for Namur-Compliant Proximity Detectors/Switches |
| Output Signal | 0.5A/35V DC Relay Contacts (10W Max.) for Solenoid Valves/Alarms |
| Isolation | Galvanic Isolation (Field/Control System) |
| Certifications | - ATEX: II 1G Ex ia IIC T4-T6 (Zone 0)
- IECEx: Ex ia IIC T4-T6 (Zone 0)
- UL: Class I Div 1 Groups A, B, C, D (USA/Canada)
- Baseefa: EX 95C2231
- Um=250V (Maximum System Voltage) |
| Hazardous Area Ratings | - Zone 0 (Gas) / Class I Div 1 (USA)
- IIC Gas Group (Hydrogen, Acetylene) |
| Line Fault Detection (LFD) | Open/Short Circuit Detection with Relay Deactivation |
| Phase Reversal | Configurable via Removable Wire Links for Alarm State Flexibility |
| Operating Temperature | -20°C to +60°C |
| Mounting | 35mm DIN Rail (MTL 5000 Series Modular Design) |
| Termination | Removable Terminal Blocks |
| Channels | Dual-Channel (Reduces Panel Space by 50%) |
| LED Indicators | - Green: Power Status
- Yellow: Output Status
- Red: Fault Detection (LFD) |
| Safety Parameters | - Uo (Open-Circuit Voltage): 25V DC
- Io (Short-Circuit Current): 147mA
- Po (Power): 0.92W |
| Applications | Petrochemical, Oil & Gas, Mining, Chemical Processing, Offshore Platforms, Fire/Smoke Detection Systems |
| Key Features | - Live Maintenance Capability
- Compact 16mm Width
- Line Fault Detection (LFD) for Enhanced Safety
- Phase Reversal Configuration |
| Compliance | CE Mark (LVD, EMC, ATEX, RoHS)
- Marine (Lloyd’s Register), KTL (Korea), NEPSI (China), PESO (India), EAC (Russia) |
| Functional Safety | Non-SIL Rated (Suitable for Basic Safety Applications) |
| Weight | 120g (Compact Design for Space-Constrained Installations) |
| Documentation | - Safety Manual (SM 45-55-SAD)
- Instruction Manual (INM 5000 Series) |
| Status | Discontinued (Superseded by MTL 5517 with Enhanced Diagnostics) |
Packaging & Shipping
Company Information
Xiamen ZhiCheng Automation Technology Co., Ltdit is a leading global supplier of control system components. We specialize in control systems and drives.
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