Question on Symmetra PX 80kW

[karbonphiber_apc]

Can someone tell me what the full load amps is on an 80kW symmetra px? i know how to do the math to determine the draw but want to know what the rated/nameplate figure is.

[Erasmus_apc · Accepted solution]

This document will explain all the electrical specifications for input and output regarding the 80kw PX, as well as recommended breaker sizing, etc., starting on page 4 of the document.

I believe the information you are interested in is below:

Input
Input voltage - 3-phase 208V (166-240V)
Input current (nominal, per phase) - 244 A
Maximum input current (continuous, at minimum mains voltage) - 321 A
Input current protection for mains source or single mains supply (external to UPS, not supplied) - 350 A *note 3
Input current protection for bypass source in dual mains configuration (external to UPS, not supplied) - 300 A *note 4
Input frequency (progammable) - 50/60 Hz

Output
Output voltage (on line) 380 V - 3-phase 208V
Output current (nominal) - 222 A
Maximum output current (in bypass at 125% overload) - 277 A
Neutral output current (with 100% switch mode load) - 384 A *note 8
Output current protection (external to UPS, not supplied) - 300 A *note 6
Output frequency (programmable) - 50/60 Hz, Synchronized to bypass input (if present)

Notes
Recommended source connection.
1. Input electricity to be provided from a dedicated, grounded 4-wire Wye utility power source
with a grounded neutral.
2. Ensure clockwise voltage phase rotation (L1,L2,L3).

Recommended input protection (dual mains configuration).
3. Mains input: 350 Amp 3-Pole AC circuit breaker with 30 kAIC.
4. Bypass input: 300 Amp 3-pole AC circuit breaker with 30 kAIC.
Note: If your installation does not include an Isolation Transformer (optional equipment), use a
300 Amp Class “J” current limiting fuse on each input phase.

Recommended input protection (single mains configuration).
5. Mains input: 350 Amp 3-Pole AC circuit breaker with 30 kAIC.
Note: If your installation does not include an Isolation Transformer (optional equipment), use a
350 Amp Class “J” current limiting fuse on each input phase.

Recommended output (single and dual mains).
6. Output: 300 Amp 3-pole AC circuit breaker with 30 kAIC.