Certifications and Compliances

9373-FB3 Range

• Ex II 2(1) GD or Ex db eb ib mb [ia Ga] T4 Gb (when TP32 trunk surge protector is fitted)

• Ex eb ib mb [ia Ga] C T4 Gb

• Ex tb IIIC T80°C Db

• ATEX Certificate: Baseefa 19ATEX0023X

• IECEx Certificate: IECEx BAS 19.0016X

9377-FB3 Range

• Ex II 2(1) G

• Ex eb ib mb [ia Ga] C T4 Gb

• ATEX Certificate: Baseefa 19ATEX0024U

• IECEx Certificate: 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

• ATEX Certificate: Baseefa 14ATEX0112X

• IECEx Certificate: 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

• ATEX Certificate: Baseefa 09ATEX0185X

• IECEx Certificate: IECEx BAS 09.0082X

9387-FB Range

• Ex II 2(1) G

• Ex d e ib mb [ia Ga] IIC T4 Gb (–40°C to +75°C)

• ATEX Certificate: Baseefa 09ATEX0184U

• IECEx Certificate: IECEx BAS 09.0081U

For environmental ratings, operating temperature limits, and shock and vibration ratings, please refer to the relevant datasheets in the Resources section.

Design Features – Engineered for Intrinsically Safe Operation

• Designed for Foundation™ Fieldbus networks in hazardous areas

• Compact, modular construction with ergonomic mechanical design across all models

• Compatible with both FISCO and Entity-certified fieldbus instruments

• Optional integrated surge protection available for both trunk and spur connections

9373-FB3 Range

• Complete enclosure systems supporting up to 12 intrinsically safe spur connections

• Suitable for installation in Zone 1 (gas) or Zone 21 (dust), with spurs connected into Zone 0

9377-FB3 Range

• Compact fieldbus barrier module supporting up to 12 intrinsically safe spur connections

• Suitable for installation in Zone 1 (gas), with spurs connected into Zone 0

• Easy installation via DIN-rail mounting or panel fixing

937x-FB2 Range

• Complete enclosure systems supporting 6 or 12 intrinsically safe spur connections

• Suitable for installation in Zone 1 (gas) or Zone 21 (dust), with spurs connected into Zone 0

9372-FB Range

• Redundant system configuration for maximum system availability

• Complete enclosure systems supporting up to 6 intrinsically safe spur connections

• Integrated fieldbus device provides direct failure alarm to the host control system

• Suitable for installation in Zone 1 (gas) or Zone 21 (dust), with spurs connected into Zone 0

9387-FB Range

• Pre-assembled system components supporting up to 5 intrinsically safe spur connections

• Designed for assembly into a user-specified field enclosure

• For Zone 1 installations, the module must be mounted in an Ex e certified field enclosure

Standard Materials for Intrinsically Safe Barriers

• 9373-FB3 range: Stainless steel enclosure

• 937x-FB2 range: Stainless steel or glass-reinforced polyester enclosure

• 9372-FB range: Stainless steel or glass-reinforced polyester enclosure

• 9387-FB range: Stainless steel backplate

About Eaton MTL Instruments

Eaton MTL Instruments, a division of Eaton Corporation (USA), is a global leader in surge protection solutions for signal, data and power applications. With over 50 years of experience, MTL products are engineered to perform reliably in harsh and hazardous environments.

Viet Thang Loi Technology Company Limited is the authorized distributor of Eaton MTL Instruments (MTL) and Eaton Crouse-Hinds (CEAG) in Vietnam. Please contact us for more details.