Vertiv | NetSure Rectifier Module User Manual (UM1R483500e) | Rev. R
• Regulation:
a) Output Voltage Tolerance:
Output voltage tolerance:
< ± 0.2 % 25 A load +15 °C to +35 °C
< ± 0.5 % 25 A load -5 °C to +55 °C
Static regulation, including input voltage variation and temperature variation:
< ± 0.5 % 5 % to 100 % load +15 °C to +35 °C
< ± 1 % 5 % to 100 % load -5 °C to +55 °C
Uin = 176 VAC to 290 VAC for R48-3200 and R48-3200e, 176 VAC to 305 VAC for R48-3500e,
185 VAC to 305 VAC for R48-4000e, f = 45 Hz to 65 Hz
Output voltage decreases with increased output current.
Overshoot of output voltage at startup ≤ ±1 %.
b) Dynamic Response Characteristic (at rated input and output voltage):
Response time ≤ 200 us and overshoot ≤ 5 % for load changes at
50 % - 25 % - 50 % and 50 % - 75 % - 50 %.
Overshoot or undershoot ≤ 5 % and output recovers within ±1 % of regulation band in ≤ 4 ms for load
changes at 10 % - 90 % and 90 % - 10 %. (Telcordia GR-947.)
• Filtering (with or without battery):
a) Voice Band Noise: Complies with Telcordia GR-947-CORE.
1. R48-3200, R48-3200e, R48-3500e: Output noise according to Telcordia GR-947-CORE: < 32
dBrnC between 180 VAC ~ 290 VAC input and 10 % to 100 % load (output voltage > 42 V, for
any application with > 1 rectifier).
2. R48-4000e: Output noise according to Telcordia GR-947-CORE: < 38 dBrnC between 180
VAC ~ 290 VAC input and 20 % to 70 % load (output voltage > 42 V, for any application with > 1
rectifier).
3. R48-3200, R48-3200e, R48-3500e: Psophometric noise is ≤ 1 mV between 180 VAC ~ 290 VAC
input and 10 % to 100 % load (output voltage > 42 V) and 16.66 Hz to 6000 Hz. (for any
application with > 1 rectifier).
4. R48-4000e: Psophometric noise is < 2 mV between 180 VAC ~ 290 VAC input and 20 % to
70 % load (output voltage > 42 V) and 16.66 Hz to 6000 Hz. (for any application with > 1
rectifier).
b) Wide Band Noise: Complies with Telcordia GR-947-CORE.
1. Typically 130 millivolt peak-to-peak. Does not exceed 250 millivolt peak-to-peak.
2. Typically 13 millivolts rms. Does not exceed 30 millivolt rms.
• Output Discharge: The output capacitors automatically discharge when the rectifier is disconnected
from the batteries and AC is turned OFF. Time constant is less than 1 minute.
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