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WAGO Relay Module - 857-357

WAGO Relay Module - 857-357

WAGO 857 Series DIN Rail Mountable 6A Relay Modules. This specific module is the WAGO 857-357, ope...

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eBayWAGO 857-304 24VDC 6A SPDT-CO DIN Rail Mountable Relay Module
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OnBuy.comWago 857-357 115V Ac/Dc 6A Spdt-Co Din Rail Mountable Relay Module Yellow 4055143656467
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Tameson UKWago Yellow 857-304 Relay Module 24Vdc 6A Single Changeover - 857-304
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eBayWAGO Relay Module 857-304 Dc 24 V 1 Changer Elementarrelais 857-152
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Product Information

Full details

The WAGO 857-357 is a 6A relay module designed for industrial control applications requiring efficient and reliable switching. It offers a Single Pole Double Throw (SPDT-CO) configuration and features easy DIN-rail mounting with push-in CAGE CLAMP® technology, making installation fast. A key benefit is its robust switching capacity and clear status indication via a yellow LED. One caveat is its specific voltage operation (115V AC/DC), requiring careful selection for different system requirements.

All features

Series857
Model Part Number857-357
BrandWAGO

Extended Product Information

FAQs

What is the maximum switching current for the WAGO 857-357?

The maximum switching current is 6A.

What type of contact configuration does this relay have?

It features a Single Pole Double Throw - Changeover (SPDT-CO) configuration.

How is the module mounted?

The module is mountable on a standard DIN-35 rail using push-in CAGE CLAMP® technology.

What is the operating voltage range?

The module operates with 115V AC or 115V DC control voltages.

Does the relay require any special tools for wiring?

No, it utilizes push-in CAGE CLAMP® technology for tool-free wiring.

How can I tell if the relay is active?

A yellow LED status indicator on the module clearly shows its operational state.

Can this relay be used for DC loads?

Yes, it can operate with both AC and DC control voltages up to 115V and switch loads accordingly.

Troubleshooting

Relay does not energize when control voltage is applied

Verify the control voltage is stable and within the 115V AC/DC range. Check wiring connections to the input terminals.

Relay does not de-energize

Confirm that the control voltage has been removed. Ensure there is no residual voltage or unintended short circuit on the control input.

Load does not switch

Check that the control input is energizing the relay (observe LED). Verify load wiring to the NO/NC and COM terminals. Ensure the load itself is functional and within the 6A rating.

LED indicator is not lit

Confirm control voltage is applied correctly. If voltage is present and LED is off, the module may be faulty.

Pros and Cons

Pros

  • Tool-free wiring reduces installation time and complexity.
  • Reliable switching performance for critical applications.
  • Clear LED indicator aids in diagnostics and monitoring.
  • Compact design saves space in control cabinets.
  • Robust construction suitable for industrial environments.

Cons

  • Limited to 115V AC/DC operation, not suitable for higher voltage systems.
  • Single channel only; requires multiple units for more complex switching needs.
  • SPDT-CO configuration might be overkill for simple on/off applications.

Setup, Compatibility & Care

Setup:

  1. Ensure the power supply matches the module's 115V AC/DC rating.
  2. Mount the module securely onto a standard DIN-35 rail.
  3. Connect the control signal wires to the appropriate input terminals using the push-in CAGE CLAMP®.
  4. Connect the load wires to the normally open (NO) or normally closed (NC) contacts and the common (COM) terminal.
  5. Apply power to the control input to test operation.

Compatibility:

  • Compatible with standard DIN-35 mounting rails.
  • Operates with 115V AC or 115V DC control signals.
  • Suitable for loads up to 6A.

Care:

  • Keep the module clean and free from dust and moisture.
  • Periodically check connections for tightness and corrosion.
  • Avoid operating the module outside its specified voltage and current ratings.

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