WAGO 750-303

WAGO 750-303 – Fieldbus Coupler PROFIBUS DP (1st Generation, 12 MBaud)

Overview

The WAGO 750-303 is a PROFIBUS DP / FMS fieldbus coupler serving as a slave node. It detects connected I/O modules (digital, analog, specialty), creates a local process image, and communicates it over PROFIBUS. It supports up to 64 modules per node and is suited for industrial systems needing reliable mixed I/O under the PROFIBUS DP standard.

Key Features

• PROFIBUS DP / FMS communication at up to 12 MBaud

• Automatically builds process image with analog and digital modules

• Support for up to 64 I/O modules per node

• 128-byte input and 128-byte output process images

• Multiple power jumper contacts for field supply

• Status LEDs for RUN, BUS FAULT (BF), diagnostics, I/O run/error

• Robust isolation between system and field sides

• Compatible with 24 VDC field and system supplies

Technical Specifications

Part Number: 750-303
Communication Protocol: PROFIBUS DP / FMS
Baud Rate: 9.6 kBaud … 12 MBaud
Max I/O Modules per Node: 64
Input Process Image Size: 128 bytes
Output Process Image Size: 128 bytes
System Supply Voltage: 24 VDC (-25 % … +30 %)
Field Supply Voltage: 24 VDC (-25 % … +30 %) via power jumpers
Current Consumption (System 5 V Side): ~350 mA
Input Current from Field Supply: ~500 mA at nominal load
Power Jumper Current Capacity: 10 A
Isolation Voltage (System vs Field): 500 V
Wire Connection Type: CAGE-CLAMP®
Conductor Size (Solid / Stranded): 0.08 … 2.5 mm² (AWG 28 … 14)
Wire Strip Length: ~8 … 9 mm
Width: ~50.5 mm
Height: ~100 mm
Depth: ~71.1 mm
Depth from Top Edge of DIN Rail: ~63.9 mm
Operating Temperature: 0 °C … +55 °C
Storage Temperature: -25 °C … +85 °C
Protection Rating: IP20
Relative Humidity (non-condensing): up to 95 %
Vibration Resistance: 4 g
Shock Resistance: 15 g

Applications

• PROFIBUS DP networks needing a reliable coupler for mixed analog and digital I/O

• Machine automation and process industries using up to 64 module nodes

• Environments where high baud rate and strong isolation are needed

• Systems with frequent diagnostics and status requirements

Why Choose the WAGO 750-303

• Supports a wide mix of I/O modules with automatic process image generation

• High-speed PROFIBUS DP communication (12 MBaud) for responsive control

• Significant module capacity per node for scalable installations

• Robust electrical design and power handling through large jumper contacts

• Strong environmental, vibration, and shock tolerance

Order Now

The WAGO 750-303 is part of the WAGO I/O System 750 product line and is available for purchase. Ships worldwide.

Original Manufacturer Packaging

These products are industrial surplus items preserved in the original manufacturer box. Learn More

DDPARTSSOLUTION Packaging

These products are industrial surplus items shipped in secure DDPARTSSOLUTION protective packaging. Learn More

Refurbished

These products have been previously installed or may show cosmetic signs of prior handling. Learn More