What is a DC Surge Protective Device?
DC Surge Protective Devices (SPD) are essential for safeguarding electronic systems from voltage spikes, ensuring both reliability and efficiency. Their ability to absorb and redirect excess voltage helps ...

• Relay the work voltage range from 120v to 280V ,
it can still work,not appear coil burned phenomenon.
• with overload and short-circuit protection
• Strong anti-interference ability Quick Transfer reliable performance
• Small size, with firefighting, power generation and other functions
• Suitable for important power supply places where power failure is not allowed

| SQ3W | |
| Product type | Automatic transfer switch |
| Specification current le(A) | 6/10/16/20/25/32/40/50/63 |
| Rated operating voltage, Ue M) | AC230V/AC400V |
| Rated insulating voltage Ui (V) | AC 690V |
| Rated impulse withstand voltage (KV) | 4KV |
| Rated short circuit making capacity Icm | 6kA |
| Rated short circuit breaking capacity lcn | 4.5KA |
| Service life | 5000 times |
| Electric equipment grade | CB Class |
| Controller | Type A(basic type) |
| Rated control supply voltage,Us(V) | 230V 50Hz |
| Operating transfer time (no time delay) | ≤3s |
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