Huawei W2PSA0800 800 W AC Power Module, can be installed in card slot on S7703, S7706, S7712 switch.
Functions and Features
Function
Description
Input protection
Input undervoltage protection
In this protection state, the power module is turned off and stops supplying power. When the system recovers from input undervoltage, the power module can automatically start supplying power again.
Input overcurrent protection
In this protection state, the power module is turned off and stops supplying power. The power module cannot automatically start supplying power again and needs to be replaced.
Output protection
Output overvoltage protection
In this protection state:
If output overvoltage is caused by the power module itself, the power module stops supplying power. When the system recovers from output overvoltage, the power module cannot automatically start supplying power again.
If output overvoltage is caused by increase of the input voltage received from the external power source, the power module stops supplying power. When the system recovers from output overvoltage, the power module can automatically start supplying power again.
Output overcurrent protection
In this protection state, the output current is limited to a certain value. When the system recovers from output overcurrent, the power module can automatically start supplying power again.
Output short-circuit protection
In this protection state, the power module supplies power intermittently, and the output current is limited to a range. When the system recovers from output short-circuit, the power module can automatically start supplying power again.
Overtemperature protection
When the temperature of the power module exceeds a specified threshold, the power module stops supplying power. When the temperature falls into the normal range, the power module automatically resumes power supply.
Hot swapping
The power module is hot swappable.
Technical Specifications
Item
Specification
Dimensions without packaging (H x W x D) [mm(in.)]
130 mm x 41 mm x 393 mm (5.1 in. x 1.6 in. x 15.5 in.)
Weight without packaging [kg(lb)]
< 2.5 kg
Number of inputs
1
Rated input voltage [V]
220 V AC/110 V AC; 50/60 Hz
Input voltage range [V]
90 V AC to 290 V AC; 47 Hz to 63 Hz
Maximum input current [A]
5 A
Rated output voltage [V]
53.5 V DC
Rated output current [A]
15 A (220 V AC input)/7.5 A (110 V AC input)
Rated output power [W]
800 W (220 V AC input)/400 W (110 V AC input)
Power dissipation Mode
Heat dissipation with fan
Hot swapping
Supported
W2PSA0800 FAQ
Q1: Is this power module compatible with the Huawei S6720-50L-HI switch? Are any additional adapters required?
A1: Fully compatible! No additional adapters are needed. Simply plug it into the switch's power slot. It's compatible with the device's native power supply logic and is plug-and-play.
Q2: Can the 800W power supply simultaneously power one mid-range switch (300W) and two mini servers (200W/unit)? Is it sufficient in redundancy mode?
A2: Absolutely sufficient! The total power is approximately 700W, lower than the 800W rated value, providing ample redundancy. In 1+1 redundancy mode, if one module fails, the other module can independently handle the entire load, ensuring stable and stress-free power supply.
Q3: What are the key differences between this and the Huawei W2PSA2230 (2200W)? How to choose?
A3: The core differences lie in power and positioning: The W2PSA0800 (800W, high cost-performance) is suitable for mid-range devices and small to medium load scenarios; the W2PSA2230 (2200W, high power) is suitable for high-density, high-load scenarios. For small to medium power needs, the mid-range model is more cost-effective.
Optical Modules Supported by Huawei S Series Switches
