MTL intrinsically safe fieldbus barriers

Certifications and compliances

9373-FB3 range:

• Ex II 2(1) GD or Ex db eb ib mb [ia Ga] T4 Gb if TP32 trunk surge protector fitted
• Ex eb ib mb [ia Ga] C T4 Gb
• Ex tb IIIC T80°C Db
• Baseefa19ATEX0023X
• IECEx BAS 19.0016X

9377-FB3 range:

• Ex II 2(1) G
• Ex eb ib mb [ia Ga] C T4 Gb
• Baseefa 19 ATEX0024U
• IECEx BAS 19.0017U

937x-FB2 range:

• Ex II 2(1) GD
• Ex d e ib mb [ia Ga] IIC T4 Gb
• Ex tb IIIC T80°C Db
• Baseefa 14ATEX0112X
• IECEx BAS 14.0058X

9372-FB range:

• Ex II 2(1)GD
• Ex d e ib mb [ia Ga] IIC T4 Gb
• Ex tb IIIC T80°C Db
• Baseefa 09ATEX0185X 
• IECEx BAS09.0082X

9387-FB range:

• Ex II 2(1)G
• Ex d e ib mb [ia Ga] IIC T4 Gb (-40°C to +75°C)
• Baseefa 09 ATEX0184U 
• IECEx BAS09.0081U

For environmental ratings, operating temperatures and shock & vibration ratings, please refer to the datasheets in the resources section.

• For Foundation™ fieldbus networks in hazardous areas
• All models offer compact, modular construction with an ergonomic mechanical design
• All models compatible with FISCO and Entity-certified fieldbus instruments
• All models availabe with optional, integrated surge protection for trunk and spurs

9373-FB3 range:

• Complete enclosure systems for 12 intrinsically safe spur connections
• Mount in Zone 1 (gas) or 21 (dust) with spurs connected into Zone 0

9377-FB3 range:

• Compact fieldbus barrier module for 12 intrinsically safe spur connections
• Mount in Zone 1 (gas) with spurs connected into Zone 0
• Easy mounting via DIN-rail or panel fixing

937x-FB2 range:

• Complete enclosure system for 6 or 12 intrinsically safe spur connections
• Mount in Zone 1 (gas) or 21 (dust) with spurs connected into Zone 0

9372-FB range:

• Redundant configuration for super-high system availability
• Complete enclosure systems for up to 6 intrinsically safe spur connections
• Failure alarm direct to host control system via integrated fieldbus device
• Mount in Zone 1 (gas) or 21 (dust) with spurs connected into Zone 0

9387-FB range:

• Pre-assembled system components for up to 5 intrinsically safe spur connections
• For assembly into user-specified field enclosure
• For installation in a Zone 1 hazardous area, mount module into an Ex e certified field enclosure

• 9373-FB3 range: stainless steel enclosure
• 937x-FB2 range: stainless steel or glass reinforced polyester enclosures
• 9372-FB range: stainless steel or glass reinforced polyester enclosures 
• 9387-FB range: stainless steel backplate