WAGO 288-837 4-Channel Potential Distribution Module

Description

WAGO 288-837 4-Channel Potential Distribution Module

Product Dimensions：

The WAGO 288-837 is an industrial-grade Bridge Rectifier Module designed for DIN-rail mounting. It is a fundamental power conditioning component used to convert alternating current (AC) into a stable direct current (DC), primarily for powering small control circuits, sensors, or actuators within an automation cabinet.

Product Detailed Description

The 288-837 is part of WAGO’s 288 Series of functional modules. It features a compact, open-frame design that snaps easily onto standard DIN-35 rails. It utilizes a full-bridge rectification circuit and is equipped with integrated capacitor filtering and a status LED to ensure the output is relatively smooth and easily monitored by maintenance staff.

Technical Parameters

Product Advantages

• CAGE CLAMP® Technology: Utilizes WAGO’s signature spring-pressure connection system, which is vibration-proof, maintenance-free, and requires no specialized tools for wiring.
• Integrated Diagnostics: Features a built-in green LED that indicates the presence of output voltage, allowing for rapid visual troubleshooting without a multimeter.
• Compact Footprint: The slim design saves valuable space on the DIN rail, making it ideal for high-density control cabinets.
• Reliable Filtering: The built-in capacitor reduces the AC ripple, providing a more stable DC signal for sensitive electronic components.

Important Considerations (Precautions)

• Unregulated Output: Note that this is a rectifier, not a regulated power supply. The output voltage will fluctuate relative to the input voltage (approx. V_{out} \approx V_{in} \times 1.414 minus diode drops). Ensure your load can handle this variation.
• Heat Dissipation: Ensure the ambient temperature does not exceed 40°C under full 1A load. Provide adequate spacing between high-heat modules to prevent thermal derating.
• Polarity: Always verify the “+” and “-” markings on the output terminals before connecting sensitive electronic loads to prevent reverse-polarity damage.
• Input Protection: It is recommended to install a fuse or circuit breaker on the AC input side to protect the module and downstream equipment from short circuits.

Product Applications

The WAGO 288-837 is used in a variety of low-voltage automation scenarios:

• Sensor Powering: Converting 24V AC transformer power to DC for inductive, capacitive, or photoelectric sensors.
• Relay Control: Providing DC power to drive relay coils in systems where only AC control power is available.
• Signal Conditioning: Serving as a local power source for small signal converters or isolation amplifiers.
• Legacy Upgrades: Easily integrating DC-powered modern components into older cabinets that primarily use AC distribution.

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