WAGO 750-303 PROFIBUS DP Fieldbus Coupler

USD 306.47

12 MBd PROFIBUS DP/FMS slave coupler with IP20 enclosure, DIN-rail mount, 24 VDC supply, and mixed I/O process-image handling.

SKU Wago-750-303 Category
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WAGO 750-303 PROFIBUS DP Fieldbus Coupler

Model Identifier 750-303
Official Part Number 750-303
GTIN Standard 4045454659431

Technical Overview

PROFIBUS DP/FMS fieldbus coupler for WAGO I/O System 750/753, designed as a slave interface to connect local I/O modules to a PROFIBUS network. The device is the 1st generation 12 MBd version and automatically builds a local process image for mixed analog and digital I/O. Manufacturer data shows compact DIN-rail mounting, IP20 enclosure, hazardous-location approvals, and a 24 VDC system supply architecture with CAGE CLAMP wiring and a 4-pole configuration connector.

Key Features

  • PROFIBUS DP/FMS fieldbus coupler, 1st generation, 12 MBd
  • Acts as a slave interface for WAGO I/O System 750/753
  • Automatically detects connected I/O modules and builds local process image
  • Supports mixed analog and digital module arrangement
  • DIN-35 rail mounting
  • IP20 protection type
  • 24 V system/field supply architecture
  • CAGE CLAMP system supply connection
  • Hazardous-location approvals listed in manufacturer documentation

PROFIBUS slave interface with automatic mixed I/O process-image mapping for WAGO 750/753 modules.

Technical Specification Matrix

ParameterValue
Fieldbus protocolPROFIBUS DP/FMS
Generation1st generation
Maximum bus speed12 MBd
Mounting typeDIN-35 rail
Protection typeIP20
Operating temperature0 ... 55 °C
Storage temperature-40 ... 85 °C
Operating altitude0 ... 2000 m
Relative humidity95% (without condensation)
Vibration resistance4 g per IEC 60068-2-6
Shock resistance15 g per IEC 60068-2-27
Width50.5 mm
Height100 mm
Depth71.1 mm
Weight185.2 g
Country of originDE
GTIN4045454659431
Product group15 (Remote I/O)
Housing materialPolycarbonate, polyamide 6.6
ColorLight gray
System supply connection2 x CAGE CLAMP
Device configuration connection1 x male connector; 4-pole
Solid conductor range0.08 ... 2.5 mm² / 28 ... 14 AWG
Fine-stranded conductor range0.08 ... 2.5 mm² / 28 ... 14 AWG
Strip length8 ... 9 mm

Industrial Applications

1. Distributed PROFIBUS remote I/O node integration

Use as the network-side interface for a WAGO 750/753 remote I/O island where PLC scan data must be exchanged over PROFIBUS at up to 12 MBd.

Problem Solved

Eliminates direct hardwiring of large I/O counts back to the PLC by concentrating field signals into a single PROFIBUS slave node.

PROFIBUS DPremote I/Oslave coupler12 MBdprocess image

2. Mixed analog and digital machine subassembly control

Suitable for compact machine skids that combine digital sensors, digital actuators, and analog signals in one modular I/O slice set.

Problem Solved

Automatically builds a mixed process image so analog word data and digital bit data can coexist without custom wiring architecture.

mixed I/Oanalog modulesdigital modulesprocess imagemodular I/O

3. Harsh-environment control panels with compact DIN mounting

Fits compact control enclosures where IP20 internal equipment, DIN-rail mounting, and robust environmental tolerances are required for panelized automation.

Problem Solved

Provides a standardized panel-mounted fieldbus interface with compact dimensions and documented vibration/shock ratings.

DIN-railIP20control panelvibration resistanceshock resistance
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