A precision electrical contact assembly that enables switching operations in selector switches through controlled movement.
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Contact Force | 2-10N | |
| Rated Current | 10-100A | |
| Rated Voltage | Up to 600V AC/DC | |
| Electrical Life | > 100,000 operations at rated load | |
| Mechanical Life | > 1,000,000 operations | |
| Contact Resistance | < 10 mΩ | |
| Insulation Resistance | > 100 MΩ | |
| Operating Temperature | -25°C to +85°C |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is used in the following industrial products
A switching device used to select different tap positions on a tap changer to adjust transformer voltage ratios.
A switching device within a tap changer that physically transfers the load current from one tap to another without interrupting the circuit.
A switching device within an On-Load Tap Changer (OLTC) that redirects current flow between transformer winding taps to adjust voltage without interrupting power.
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The spring provides consistent contact pressure to ensure reliable electrical connection, helps with contact wiping action to clean surfaces, and returns the contact to its original position after actuation.
Regular inspection every 6-12 months depending on operating frequency, with contact resistance measurement and visual inspection for wear, pitting, or contamination.
Yes, most are designed as replaceable modules, but replacement should follow manufacturer specifications and include proper alignment and contact pressure adjustment.
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