Eaton MTL Ex ic adaptor for live working Ex ic spurs

Crouse-Hinds series MTL F30 Ex ic Adaptor is an accessory to our

F300 range of Megablock wiring hubs. The F30 provides intrinsically

safe Ex ic spur connections for fieldbus networks in Zone 2 hazardous

areas. One F30 is used with each Megablock, to limit the voltage at

the spurs to Ex ic levels. When connected to suitably certified fieldbus

instruments, the spurs may be live-worked in accordance with normal

intrinsic safety procedures. The F30 is completely transparent to all

fieldbus communications.

The F30 is compatible with F304. F308 and F312 Megablock types,

typically providing up to 12 Ex ic spurs per fieldbus segment.

Up to two F30s and their associated Megablocks may be connected

to a single segment, to allow the fieldbus trunk to be extended

between junction boxes in the field.

Ex ic replaces the earlier Ex nL technique for energy-limited fieldbus

networks, and brings the technique into line with formal intrinsic safety

procedures.

Certifications and compliances

• Hazardous Area Approvals:

• Certification code: II 3G Ex nA IIC T4 Gc

• Certification numbers: DEKRA ATEX 0129X; IECEx DEK 13.0038X

• Environmental ratings:

• Operating temperature range: –40º to +70ºC

• Relative humidity: 0 to 95% non-condensing

Design features

• Simple compliance with Ex ic certification requirements from control

room to field

• Use with F300 range of Megablocks and 918x-x2 range of fieldbus

power supplies to provide Ex ic intrinsically safe spurs for FOUNDATIONTM

Fieldbus networks

• Architecture supports Ex nA, Ex d devices and Ex i devices on the same

segment

• Allows spurs to be live-worked in Zone 2 when connected to suitably

certified field instruments

• Compatible with FISCO and Entity certified fieldbus devices

• Installs with Megablock in field junction box

• Supports long trunk cable lengths and heavily loaded fieldbus segments

Standard materials

• Case: Polycarbonate