| PARAMETERS | (NEW SERIES) SDU AC-B UPS | |
| Model Numbers | SDU 500B SDU 850B SDU 500B-5 SDU 850B-5 | |
| Capacity (VA/Watts) | SDU 500B : 500VA/300W SDU 850B : 850VA/510W SDU 500B-5 : 500VA/300W SDU 850B-5 : 850VA/510W | |
| Voltage | 120Vac (SDU 500B, SDU 850B) 230Vac (SDU 500B-5, SDU 850B-5) | |
| 120Vac (+20%, -25%) 230Vac (+20%,-20%) | ||
| Frequency | 50 ±5Hz, 60 ±6Hz (auto sensing) | |
| Voltage (Battery Mode) | Step/Simulated Sinewave | |
| ±5% | ||
| Frequency (On Battery) | 50Hz or 60Hz | |
| ± 0.3 Hz | ||
| Overload Protection | UPS automatic shutdown if overload exceeds 105% of nominal at 20 seconds, 120% at 10 seconds, 130% at 3 seconds | |
| Short Circuit | UPS Shutdown, auto-recovery | |
| Battery Type | Same | |
| Transfer Time | Typical <10ms | |
| Backup Time (minutes FL/HL) | SDU 500A (4/18) SDU 850A (2/10) SDU 500A-5 (4/18) SDU 850A-5 (2/10) | |
| Connectivity | USB 2.0 Port | |
| Monitoring Software | UPSWATCH | |
| User Replaceable Battery | YES | |
| Remote ON/OFF | Same as SDU AC-A | |
| Operating Temperature | Same | |
| Storage Temperature | Same | |
| Relative Humidity | 0 to 95%, non-condensing | |
| Ambient Operation | 0-95% humidity non-condensing, 0-50 °C up to 6,600 ft. (2000m) | |
| Audible Noise | Same | |
| Dimensions (H x W x D) -in. (mm) | 4.89 x 10.91 x 5.22 (124.2 x 277.0 x 132.7) | |
| Weight - lbs (kg) | SDU 500B : 10.6 (4.80) SDU 850B : 11.5 (5.2) SDU 500B-5 : 10.8 (4.9) SDU 850B-5 : 11.5 (5.2) | |
| Elevation | Ordinary Location up to 3000m without derating, operating Hazardous Location up to 2000m without derating, operating | |
| Mounting | Same | |
| Certification and Compliances | ||
| Accessories | 
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