Eaton MTL

MTL Instruments Group

Products

Energy-Limited Trunk - live working on Trunk and Spurs

WIRING COMPONENTS (FOR ZONE 1) - The F240-F273 intrinsically safe Megablocks are DIN-rail mounted passive hubs for easy connection of field devices to fieldbus networks. The established SpurGuardTM feature protects the fieldbus segment in the event of spur short-circuit faults. MTL has a comprehensive range of enclosures that are designed to house Megablock wiring components and accessories.

FIELDBUS DEVICES FOR ZONE 2 - Non-incendive or intrinsically safe certified fieldbus devices may be selected for connection to FNICO networks.



WIRING COMPONENTS (FOR ZONE 2) - The F240-F273 intrinsically safe Megablocks are DIN-rail mounted passive hubs for easy connection of field devices to fieldbus networks. The established SpurGuardTM feature protects the fieldbus segment in the event of spur short-circuit faults. MTL has a comprehensive range of enclosures that are designed to house Megablock wiring components and accessories.

FIELDBUS DEVICES FOR ZONE 1 - FISCO certified fieldbus devices or intrinsically safe entity certified fieldbus devices with the use of an entity spur wiring component may be selected.



SURGE PROTECTION - The intrinsically safe certified fieldbus surge protector range has been designed specifically for fieldbus installations, providing excellent protection while remaining transparent to the digital communication signals. The cost of reliable surge protection is therefore a small price to pay to safeguard the significant investment in today's fieldbus systems.

SURGE PROTECTION - The intrinsically safe certified fieldbus surge protector range has been designed specifically for fieldbus installations, providing excellent protection while remaining transparent to the digital communication signals. The cost of reliable surge protection is therefore a small price to pay to safeguard the significant investment in today's fieldbus systems.

FNICO POWER SUPPLIES - For fieldbus applications in Zone 2 and Division 2 hazardous areas, MTL’s unique Fieldbus Non-Incendive Concept (FNICO) power supplies bring together the benefits of FISCO with higher current levels, allowing yet more devices per trunk. Live-working is permitted throughout the field network, and compatible field devices may be selected from a wide variety of intrinsically safe or non-incendive types.

FISCO POWER SUPPLIES - The FISCO power supplies provide an intrinsically safe field network for fieldbus systems in Zone 1 and Division 1 hazardous areas. The output of the power supply modules complies with the Fieldbus Intrinsically Safe Concept (FISCO) model, in accordance with IEC standard 60079-27. Redundancy of the power modules is supported to achieve the highest levels of overall system availability.

HOST CONTROL SYSTEM - FOUNDATION fieldbus™ is supported by all major Control System vendors. MTL have worked closely with every supplier to develop cost effective, integrated power supply solutions.



ENERGY LIMITED TRUNK - The fieldbus network interconnects transmitters and actuators to a control system over a single twisted pair cable. Voltage and current levels are limited by the power supply, allowing live connection and disconnection on trunk and spurs in the hazardous area. The image above shows key components required to build an energy limited trunk network.
Hover the mouse over each component to find out more and click for any further details.

For application examples,
see the following:
See also: