X20SO4120
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The X20SO4120 is a DIN rail-mounted I/O module with 4 relay outputs (normally open) and a nominal output voltage of 24 VDC / 230 VAC. Manufactured by B & R Automation as part of their X20 Fieldbus Input Output Modules, it supports a maximum module current of 8 A. This module operates within -25 to +60 °C.
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Product Description:
Among the many industrial automation modules available B & R Automation manufactured X20SO4120 stands out for its durability and adaptability. This communication module with its improved connection and efficiency is an essential feature of modular control systems from the X20 Fieldbus Input Output Modules.
The X20SO4120 module supports a nominal output voltage of 24 VDC or 230 VAC depending on the external circuit. It allows switching within a range of 5 to 30 VDC and 24 to 230 VAC. The maximum output current per channel is 2 A which supports moderate load applications. It integrates four normally open relay outputs for controlling electrical loads in automation systems. The module can handle a total current of 8 A across all four outputs. A minimum load of 10 mA is required for accurate operation. It maintains an isolation voltage of 500 V between the channel and the bus for safe signal separation. The switching time is 10 ms when turning ON and 5 ms when turning OFF. It includes diagnostic functions for both individual channels and the power supply. Each channel has a dedicated status LED to show real-time operating condition. The X20SO4120 module fits securely on standard DIN rails to simplify cabinet installation. Its mechanical pitch is 25 mm which allows space saving arrangements within system enclosures. The device operates within a temperature range of -25 to +60 °C which matches most industrial requirements.
The X20SO4120 module is ideal for control architectures that rely on consistent switching within distributed automation systems. It generates a test pulse with a maximum length of 500 µs for signal validation. The module supports an error detection time of 1 second to identify fault situations promptly.
Frequently Asked Questions about X20SO4120:
Q: Why does X20SO4120 offer a test pulse function?
A: The test pulse verifies load presence or response, enhancing safety and validation during system operation.
Q: How does X20SO4120’s relay design benefit automation tasks?
A: Its mechanical relay contacts provide robust switching, making it ideal for inductive or resistive loads.
Q: Does the X20SO4120 module include surge protection?
A: It doesn't have built-in surge protection, so external safeguards are recommended in surge-prone environments.
Q: What’s the role of mechanical pitch in X20SO4120?
A: The 25 mm pitch allows dense module placement in enclosures, saving space in complex control panels.
Q: Why is channel-level diagnostic essential in X20SO4120?
A: It helps isolate faults at the individual output level, speeding up maintenance and reducing total system downtime.
