Pepperl+Fuchs FB9221 Remote I/O Field Unit – ATEX/IECEx Zone 1

The Pepperl+Fuchs FB9221 Remote I/O Field Unit is a certified enclosure system designed for safe operation of I/O modules in hazardous areas. Certified for Zone 1/21 and Class I/II Division 1 applications, it provides a packaged, impact-resistant GRP housing with IP66 protection. This unit integrates seamlessly into automation systems with support for PROFIBUS DP, PROFIBUS DP V1, MODBUS RTU, and MODBUS TCP.

Engineered for durability and flexibility, the FB9221 accommodates up to 20 single-width or 10 dual-width I/O modules, with redundant fieldbus and power supply options. Its lightweight, corrosion-resistant polyester housing ensures reliable performance in oil & gas, chemical, and mining industries, while simplifying hazardous area automation.

Key Features:

✅ ATEX, IECEx certified for Zone 1/21 hazardous areas
✅ Supports PROFIBUS DP/DP V1, MODBUS RTU, MODBUS TCP
✅ Rugged, impact-resistant IP66 GRP enclosure
✅ Capacity for up to 20 single-width or 10 dual-width I/O modules
✅ Redundant fieldbus and power supply connections
✅ Lightweight, corrosion-resistant polyester housing
✅ Designed for extreme industrial environments
✅ Easy expansion and module exchange

📦 Package Options:

🔹 Standard Enclosure: FB9221 with empty slots
🔹 With Power Supply Redundancy: Dual power input configuration
🔹 With Full Module Capacity: Up to 20 I/O slots filled

Pepperl+Fuchs FB9221 Technical Specifications:

Feature	Details
Model	FB9221-PF0-A-0A0-00-0
Certification	ATEX, IECEx (Zone 1/21, C1D1)
I/O Capacity	Up to 20 single-width or 10 dual-width modules
Fieldbus	PROFIBUS DP/DP V1, MODBUS RTU, MODBUS TCP
Power Supply	24 V DC / 115 V AC / 230 V AC, redundant option
Ingress Protection	IP66
Housing Material	GRP (glass fiber reinforced polyester, antistatic)
Operating Temp	-20 °C to +40 °C
Impact Resistance	7 J
Dimensions	600 × 480 × 241.5 mm
Weight	~19 kg (without modules)

Certifications & Compliance:

🔗 ATEX – Zone 1/21 certified
🔗 IECEx – International hazardous area approval
🔗 IP66 – Dust- and water-tight protection
🔗 PTB 97 ATEX 1075 X – EU-type examination certificate
🔗 Download Datasheet

Applications of Pepperl+Fuchs FB9221:

🔹 Oil & Gas
🔹 Chemical Plants
🔹 Offshore Platforms
🔹 Mining
🔹 Manufacturing

What’s in the Box?

📦 1x Pepperl+Fuchs FB9221 Remote I/O Field Unit
📦 1x Grounding Rail and Mounting Hardware
📦 1x Documentation Kit

Ordering & Shipping Details

📦 Lead Time: Please contact us to confirm current lead times
📍 Shipping Terms: Worldwide / Expedited Options
💳 Payment Options: Credit Card, PayPal, Net 30 Terms

FAQs:

How many I/O modules can the FB9221 support?
It can hold up to 20 single-width or 10 dual-width modules.

Which communication protocols are supported?
It supports PROFIBUS DP/DP V1, MODBUS RTU, and MODBUS TCP.

What material is the enclosure made from?
Glass fiber reinforced polyester (GRP) with antistatic properties.

Where can it be installed?
Certified for Zone 1/21 and Class I/II Division 1 hazardous areas.