Pepperl+Fuchs LB7104A Universal I/O Module (HART) – ATEX/IECEx Zone 2, 4-Channel
The Pepperl+Fuchs LB7104A is a configurable 4-channel universal input/output module designed for Zone 2 or Class I/Div. 2 applications. Each channel can be configured as an analog input, analog output, digital input, or digital output, offering maximum flexibility in hazardous area automation systems. Certified for ATEX and IECEx, it ensures safe integration of field devices such as transmitters, valves, alarms, and sensors.
With HART communication, built-in line fault detection, and galvanic isolation, the LB7104A provides reliable and safe data transmission. LEDs indicate channel status, while simulation and service modes allow testing without interrupting operations. Its hot-swappable design ensures reduced downtime, making it an essential module for oil & gas, chemical, and industrial plants.
Key Features:
✅ ATEX, IECEx, UL certified for Zone 2 / Class I Div. 2
✅ 4 configurable channels: AI, AO, DI, DO
✅ Supports HART communication with transmitters and valves
✅ Line fault detection with per-channel LED indicators
✅ Hot-swappable – exchangeable under voltage
✅ Galvanic isolation between field circuits and bus
✅ Compact design with IP20 rating (backplane-mounted)
✅ Wide operating temperature: -40 °C to +60 °C
✅ Permanently self-monitoring
📦 Package Options:
🔹 Standard Module: 4 configurable I/O channels
🔹 With HART Communication: Full analog/digital I/O + HART support
🔹 With Simulation Mode: Enables service and testing functions
Pepperl+Fuchs LB7104A Technical Specifications:
| Feature | Details |
|---|---|
| Model | LB7104A |
| Certification | ATEX, IECEx, UL/cULus (Zone 2, C1D2) |
| Channels | 4 configurable (AI, AO, DI, DO) |
| Communication | HART protocol supported |
| Power Supply | 12 V DC via LB9xxx backplane |
| Power Consumption | 3 W |
| Indicators | LEDs per channel (status, mode, fault) |
| Logic | Configurable, with simulation mode |
| Isolation | Galvanic isolation, 375 V |
| Operating Temp | -40 °C to +60 °C |
| Protection | IP20 (when mounted on backplane) |
| Dimensions | 16 × 100 × 102 mm (0.63 × 3.9 × 4 in) |
| Weight | 100 g (0.22 lbs) |
Certifications & Compliance:
🔗 ATEX – Zone 2 certified universal I/O module
🔗 IECEx – International approval for hazardous areas
🔗 UL/cULus – Class I Div. 2 approval
🔗 IP20 – Protection when mounted on backplane
🔗 Download Datasheet
Applications of Pepperl+Fuchs LB7104A:
🔹 Oil & Gas
🔹 Chemical Plants
🔹 Mining
🔹 Process Automation
🔹 Manufacturing
What’s in the Box?
📦 1x Pepperl+Fuchs LB7104A Universal I/O Module
📦 1x Removable Connector
📦 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 channels does it have?
The LB7104A provides 4 configurable channels (AI, AO, DI, DO).
Does it support HART?
Yes, it supports HART communication for analog inputs/outputs.
Is it hot-swappable?
Yes, the module can be exchanged under voltage for reduced downtime.
Where can it be installed?
It can be installed in Zone 2/Class I Div. 2 areas or safe areas.
