How to Select the Right Changeover Switch
2025-08-07
Understanding Changeover Switches
Changeover switches are critical electrical components that safely transfer power sources between primary and backup supplies. At YRO, we specialize in manufacturing high-performance changeover switches for industrial, commercial, and residential applications. This guide provides expert insights into selecting the perfect switch for your power transfer needs.
Key Selection Criteria for Changeover Switches
1. Electrical Parameters
| Parameter | Importance | YRO Standard Range |
|---|---|---|
| Voltage Rating | Must match system voltage | 230V-690V AC/DC |
| Current Rating | Should exceed load current | 16A-3200A |
| Breaking Capacity | Fault current withstand | 10kA-100kA |
| Pole Configuration | Phase requirements | 1P-4P |
2. Operation Types
| Type | Operation Method | Best Applications |
|---|---|---|
| Manual | Physical lever operation | Small installations |
| Motorized | Remote/automatic control | Critical facilities |
| Automatic | Self-triggering transfer | UPS systems |
3. Mechanical Characteristics
✔ IP Rating: IP65 for outdoor use
✔ Mechanical Life: 10,000+ operations
✔ Contact Material: Silver alloy for low resistance
YRO Changeover Switch Product Line
Technical Specifications
| Model | Type | Current Rating | Voltage | Poles | Breaking Capacity |
|---|---|---|---|---|---|
| YRO-M16 | Manual | 16-125A | 400VAC | 1P-4P | 10kA |
| YRO-M250 | Manual | 160-250A | 690VAC | 3P-4P | 25kA |
| YRO-A100 | Automatic | 63-100A | 400VAC | 3P-4P | 15kA |
| YRO-A3200 | Automatic | 1600-3200A | 690VAC | 3P-4P | 100kA |
Advanced Features
✔ Visual position indicators
✔ Padlocking facility for safety
✔ Arc chutes for high-current models
✔ Auxiliary contacts for remote monitoring
Installation Considerations
Mounting Options
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Panel mounted (front or rear operation)
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DIN rail mounted (compact installations)
-
Floor standing (high-current models)
Wiring Requirements
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Cable size: Match switch terminal capacity
-
Separation: Maintain clearance between power sources
-
Labeling: Clearly identify all circuits
FAQ: Changeover Switch Selection
Q: How do I choose between manual and automatic changeover switches?
A: Consider these factors:
| Factor | Manual Switch | Automatic Switch |
|---|---|---|
| Response Time | Seconds-minutes | Milliseconds |
| Operation | Requires human intervention | Self-acting |
| Cost | Lower | Higher |
| Best For | Non-critical loads | Mission-critical systems |
YRO recommends:
-
Manual switches for generators in homes/shops
-
Automatic switches for data centers/hospitals
Why Choose YRO Changeover Switches?
✔ 100% copper contacts for maximum conductivity
✔ UL/CE/IEC certified for global standards
✔ Custom configurations available
✔ 5-year warranty on mechanical components
✔ 24/7 technical support
Get Your Power Transfer Solution Today
For product specifications or technical consultation:
📧 Email: [email protected]
With 10+ years in electrical switching technology, I personally guarantee YRO changeover switches provide reliable, safe power transfer in any application. Contact us for your project requirements!
