Wago 750-556 2Ao, ±10 Vdc

Wago 750-556 2Ao, ±10 Vdc

WAGO 750-556 relay output module with four potential-free relay contacts for switching AC or DC loads within the WAGO I/O System 750/753 distributed automation platform.

SKU: 750-556Alt SKU: 750556MPN: 750-556
Price
List Price £257.24 ex VAT
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Why Choose the WAGO 750-556 Relay Output Module?

The WAGO 750-556 is a reliable 4-channel relay output module designed for integration within the WAGO I/O System 750 and 753 distributed automation platform. It allows PLCs and fieldbus controllers to switch AC or DC loads through mechanical relay contacts, creating a dependable interface between low-voltage control signals and external electrical circuits.

Each output channel provides a potential-free relay contact, allowing the module to control devices such as contactors, solenoid valves, pumps, motors, alarms and signalling devices. This flexibility makes the module suitable for machine automation, process control and building management systems where reliable switching of electrical loads is required.

The module’s compact DIN rail design allows efficient installation within control cabinets and distributed I/O stations. WAGO’s trusted CAGE CLAMP® spring pressure connection technology ensures quick wiring, vibration-resistant connections and long-term maintenance-free operation in demanding industrial environments.

Key Advantages

  • 4 relay output channels for switching multiple loads.
  • Potential-free relay contacts suitable for AC and DC circuits.
  • Provides galvanic isolation between PLC control signals and field devices.
  • Compact DIN rail module for efficient control cabinet layouts.
  • CAGE CLAMP® spring pressure terminals for fast, secure wiring.
  • Fully compatible with the WAGO I/O System 750 and 753.

Key Features

  • 4-channel relay output module.
  • Potential-free relay contacts.
  • Mechanical relay switching for AC and DC loads.
  • Electrical isolation between system and field circuits.
  • DIN rail mounting for control cabinets.
  • CAGE CLAMP® spring connection technology.
  • Part of the WAGO distributed I/O system architecture.
  • Designed for industrial automation and building control systems.

Reliable Distributed Automation with WAGO I/O

The WAGO I/O System 750/753 is a flexible distributed automation platform widely used in machine control, factory automation and building management systems. Its modular architecture allows digital, analogue and communication modules to be combined to create scalable industrial automation solutions.

Relay output modules such as the 750-556 are particularly useful when switching higher voltage loads or when electrical isolation between PLC logic and external circuits is required. Mechanical relay contacts provide a dependable interface for controlling field devices and electrical equipment from automation systems.

Typical Applications

  • Industrial automation control panels.
  • PLC-controlled relay switching.
  • Machine control and process automation.
  • Switching AC loads and higher voltage circuits.
  • Alarm and signalling systems.
  • Building automation and facility management.

Technical Specifications

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Signal / Input Range ±10 V
Product Series WAGO I/O System 750
Device Type Analogue I/O Module
Output Type Relay
Signal Type / Function Analogue, Relay
Number of I/O 2
IP Rating IP20
Series WAGO I/O System 750 / 753
Module type Relay output module
Number of outputs 4 relay outputs
Contact type Potential-free relay contacts
Maximum switching voltage approx. 250 V AC / 30 V DC
Maximum switching current approx. 2 A per channel
Switching type Mechanical relay
System supply voltage 5 V DC via internal system bus
Connection technology CAGE CLAMP® spring connection
Mounting type 35 mm DIN rail
Dimensions approx. 100 × 24 × 67.8 mm
Operating temperature -20 °C to +60 °C
Protection rating IP20
Isolation galvanic isolation between system and field circuits
Approvals CE, UL and international industrial approvals
HS Code 85389099
Country of Manufacture Germany

Frequently Asked Questions

What is the WAGO 750-556 module used for?

The module provides four relay outputs that allow PLCs or controllers to switch AC or DC loads such as contactors, valves and signalling devices.

Are the relay contacts electrically isolated?

Yes. The relay contacts are potential-free and provide galvanic isolation between the control system and the switched load.

What voltage can the relay contacts switch?

The contacts can typically switch loads up to approximately 250 V AC or 30 V DC, depending on the load characteristics.

How is the module installed?

The module mounts on a standard 35 mm DIN rail and connects to other WAGO I/O modules through the internal system bus.

Which systems is this module compatible with?

The 750-556 is compatible with the WAGO I/O System 750 and 753, including WAGO PLCs and fieldbus couplers.

Trusted by Automation Engineers

WAGO relay output modules are trusted worldwide by machine builders and automation engineers for reliable switching performance, electrical isolation and flexible integration in industrial control systems.

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