WAGO 859-303 Spst Rail Realy Module 5A 250V

( Brand: Wago ), ( Part Type: Module ), ( Manufacturer Part Number: 859-303 )

Review WAGO 5a 250v Spst Rail mounted Realy Module

The WAGO 859-303 5A 250V SPST Rail-Mounted Relay Module is a versatile and reliable component for various automation and control applications. This module is designed to handle alternating current (AC) and comes with a switch rating of Single Pole Single Throw (SPST), 5 Ampere (A), and 250 Volts (V).

This rail-mounted relay is a space-saving solution, allowing for efficient organization and installation within control panels. Its compact size, just 45 mm in width, makes it an excellent choice for applications where space is a concern. The module's sleek design and silver finish complement industrial settings and contribute to a professional appearance.

The WAGO 859-303 features a quick-connect spring pressure terminal block that simplifies wiring. This terminal block is known for its ease of use, allowing for tool-less connection and disconnection of wires, reducing installation time and effort. The spring pressure terminals also ensure secure and reliable contact, minimizing the risk of intermittent connections or arcing.

The module's NO (Normally Open) contacts are designed to open when the relay coil is de-energized, making it an ideal choice for applications requiring normally open contacts. The relay coil is rated for 250V AC and 0.5A, and its contacts can handle currents up to 5A.

The WAGO 859-303 is also equipped with a built-in diode for coil protection. This diode ensures that the coil is not damaged by inductive loads when switching off, prolonging the lifespan of the relay and improving overall system reliability.

This rail-mounted relay module meets various international safety standards, such as UL508A, CSA C22.2 No. 61850-1, and IEC 60947-5-2. It is also RoHS compliant, making it an environmentally-friendly choice for your automation projects.

In summary, the WAGO 859-303 5A 250V SPST Rail-Mounted Relay Module is a high-performance, compact, and reliable component for your AC automation applications. Its quick-connect terminal block, built-in diode, and robust design make it an essential tool for efficient and effective control panel design and installation.

Wago 859-303 5A 250V SPST Rail-Mounted Relay Module: A Comprehensive Analysis

The Wago 859-303 5A 250V SPST (Single-Pole Single-Throw) rail-mounted relay module is a popular choice for various industrial automation applications. This component is known for its compact size, high switching capacity, and ease of installation. In this analysis, we will discuss the key features, advantages, and disadvantages of this relay module.

1. Compact size: The Wago 859-303 relay module is designed to save space in control panels, making it an ideal choice for applications with limited space.

2. High switching capacity: This relay can handle a current of up to 5A and a voltage of 250V, making it suitable for various industrial applications.

3. Rail-mounted: The module can be easily mounted on DIN rails, allowing for quick and flexible installation.

4. SPST: The Single-Pole Single-Throw design of the relay ensures reliable switching between two contacts.

1. Space-saving design: The compact size of the Wago 859-303 relay module allows for more efficient use of space in control panels.

2. High switching capacity: The relay can handle a significant amount of current and voltage, making it suitable for a wide range of industrial applications.

3. Easy installation: The rail-mounted design and straightforward wiring make installation quick and hassle-free.

1. Limited capacity for complex applications: The Wago 859-303 is a basic relay module and may not be suitable for more complex applications requiring multiple contacts or advanced features.

2. Higher cost compared to basic relays: Due to its advanced features and high switching capacity, the Wago 859-303 relay module may cost more than basic relay modules.

The Wago 859-303 5A 250V SPST rail-mounted relay module is an excellent choice for industrial applications requiring a compact, reliable, and high-performance switching solution. Its space-saving design, high switching capacity, and ease of installation make it a popular choice among automation professionals. However, its higher cost compared to basic relays and limited capacity for complex applications should be considered when making a purchasing decision.

If you are looking for a compact, reliable, and high-performance relay module for your industrial application, the Wago 859-303 5A 250V SPST rail-mounted relay module is a recommended option. Its advantages, such as a space-saving design, high switching capacity, and easy installation, outweigh its disadvantages for most industrial applications. However, it is essential to evaluate your specific application requirements and consider the cost before making a final purchasing decision.

Details:

WAGO 859-303 5A 250V SPST RAIL-MOUNTED REALY MODULE.

part #: 859303 prices

• $37.00-$342.05

specifications plcmechanize:

• brand: Wago
• part type: Module
• manufacturer part number: 859-303

returns plcmechanize:

• policy: No Returns

general plcmechanize:

• Industrial Automation Motion Controls > PLCs HMIs > PLC Processors
• condition: New

offer plcmechanize:

• options: Ship-to-home
• sold: 0
• started: August 26, 2025
• quantity: 1
• availability: In Stock

shipping plcmechanize:

• service: USPS Priority Mail Small Flat Rate Box
• class: Expedited
• cost: $0.00
• type: Fixed
• carrier: USPS
• transit: 3-10 Days

seller plcmechanize:

• rating: 100.0%
• city: Glendale, Arizona
• # reviews: 681

payments plcmechanize:

• credit card: Diners-club
• wallet: Paypal
• other

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