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Hager Modular Changeover Switch - SFT240 - 40A - 2 Pole

Hager Modular Changeover Switch - SFT240 - 40A - 2 Pole

Professional-grade 2-pole modular changeover switch rated at 40 amperes with three positions (I-0-...

Best current price£60.97from Tameson UK

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Tameson UKHager 40A 2 Pole Modular Changeover Switch I-0-Ii - Sft240
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£60.97
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eBayMOD.PRZ.INS.I-0-II PUN.WSP.OD GÓR.2P 40 SFT240
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RS Components Ltd- UKHager SBN Series Modular Switch, Changeover, DIN Rail, DP3T, 440V, IP20
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Product Information

Full details

This Hager SFT240 is a professional-grade 2-pole modular changeover switch designed for electricians and system integrators managing electrical distribution systems. Its key benefit is providing reliable switching between two power sources with a clear center-off position. A potential consideration is its specific configuration, requiring understanding of top common point setups. This switch offers efficient indoor power management with a 40-ampere rating and easy DIN rail installation.

All features

SeriesSBN
Model Part NumberSFT240
BrandHAGER

Extended Product Information

FAQs

What is the maximum current rating for this switch?

The Hager SFT240 is rated for a maximum of 40 amperes (40A).

What does 'top common point' configuration mean?

This refers to the wiring layout where the output connection (the common point) is located at the top of the switch, with the two input sources connected below it.

Can this switch be used outdoors?

No, this switch is designed for indoor use only within electrical enclosures.

What voltage is this switch compatible with?

It is compatible with 230V AC input voltage.

How do I install this switch?

It mounts easily onto a standard 35mm DIN rail within an electrical panel. Ensure power is off before installation and consult a qualified electrician if unsure.

What are the three positions on the switch?

The three positions are 'I' (Source 1), '0' (Off), and 'II' (Source 2), allowing selection between two power sources and a complete power cut.

Is this switch suitable for industrial applications?

It is suitable for applications requiring a 40A rating and manual changeover, commonly found in commercial or smaller industrial settings, provided the environmental conditions are met (indoor use).

Troubleshooting

Switch does not move between positions.

Ensure the switch is not under load. Safely de-energize the circuit and check for any obstructions. If the issue persists, the unit may need replacement.

No power to the load when switched to position I or II.

Verify that power is present at the input terminals for both positions. Check all wiring connections for tightness and correct placement according to the top common point configuration. Confirm the load itself is functional.

Switch feels loose or unstable.

Ensure the DIN rail clip is securely fastened to the rail. Check that the switch is fully seated on the rail. If the unit is damaged, it should be replaced.

Overheating or unusual noises during operation.

Immediately de-energize the circuit. Check for loose connections, overloaded circuits (exceeding 40A), or internal damage. Consult a qualified electrician for inspection and potential replacement.

Pros and Cons

Pros

  • Reliable switching between two power sources.
  • Clear indication of power source selection (I-0-II).
  • Easy installation on standard DIN rails.
  • Robust 40A rating for demanding applications.
  • Compact design for efficient panel space utilization.

Cons

  • Specific top common point configuration may not suit all wiring schemes.
  • Requires professional installation due to electrical nature.
  • Primarily designed for indoor use only.
  • Sold individually, requiring multiple units for complex systems.

Setup, Compatibility & Care Instructions

Setup:

  1. Ensure the main power to the distribution panel is safely isolated.
  2. Mount the SFT240 switch onto a standard 35mm DIN rail within the electrical enclosure.
  3. Connect the input wires from the two power sources to the appropriate terminals, noting the top common point configuration.
  4. Connect the output wires to the load(s) from the common terminal.
  5. Secure all connections ensuring proper torque.
  6. Re-energize the circuits cautiously and test the switch's functionality through its three positions.

Compatibility:

  • Compatible with standard 35mm DIN rail mounting systems.
  • Suitable for use in 230V AC electrical systems.
  • Designed for indoor environments.

Care:

  • Regular Inspection: Periodically check for secure connections and signs of wear.
  • Cleaning: Dust off the unit with a dry cloth. Avoid using liquids or solvents, especially when the switch is installed and connected.
  • Operational Checks: Ensure smooth operation of the lever and positive engagement in each position.

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