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Three Phase STS&STS Cabinet

Home > Products > STS(Static/Auto transfer Switch) > Three Phase STS&STS Cabinet

BVT 32A 40A 45A 50A 63A Three Phase 19 inch Static Transfer Switch 3U with touch screen




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Adopting fully digital control, with strong anti-interference ability and fast operating speed;

Switching time ≤ 4ms, high reliability;

Strong overload capacity, able to withstand full load startup;

It has protection functions such as input overvoltage and undervoltage, overcurrent, etc;

The front panel is equipped with a display screen and indicator lights, providing a visual understanding of STS status information;

Provide an STS version that can switch between live and neutral wires simultaneously, with identical appearance, structure, and performance.

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INDEX

switching time

Priority switching

≤10ms

This parameter was tested under pure resistive load conditions, and the time may be slightly longer under no load conditions;

Power off switching

≤4ms

Normal technical parameter

Rated voltage (VAC)

Ua=220V

Ub=220V

Uc=220V

Input voltage range (VAC)

190～250

Rated frequency (Hz)

50/60

Power factor

1

Automatic conversion threshold voltage

Undervoltage value: 190Vac ± 5Vac

Overvoltage value: 250Vac ± 5Vac

Automatic conversion threshold frequency

Frequency below: 45Hz ± 0.2Hz

Frequency higher than: 65Hz ± 0.2Hz

Over limit protection shutdown threshold voltage

≤ 120Vac or ≥ 260Vac, with a hysteresis of ± 5V

Over limit protection shutdown threshold frequency

≤ 45Hz or ≥ 65Hz, with a hysteresis of ± 0.2Hz

Overload capacity

Load current ≤ 110%, continuous operation;

If the load current is greater than 110%, immediately shut down;

environment

Dielectric Strength

2KVAC，1min

Noise (1m)

≤60dB

Ambient Temperature

-25～50℃

Transportation and storage temperature

－40～70℃

humidity

0-90%, no condensation

protection grade

IP20

Altitude (m)

≤3000

2000～3000m

For every 100m increase, the output will decrease by 2%

Protection function

Input undervoltage and overvoltage protection, output overload protection, over temperature protection, short circuit protection


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