Technical Specifications
7
UR11 | 7-1
7 TECHNICAL SPECIFICATIONS
This chapter describes the technical specifications (electrical and mechanical) of the UR11 Rectifier Unit.
7.1 POWER DATA
Power supply:
Maximum rated input voltage: 480 V for 380...480 V models, 600 V for 500...600 V models and 690 V
for 660...690 V models, up to 2000 m altitude. The voltage derating for higher altitudes is 1,1 % for each
100 m above 2000 m - maximum altitude: 4000 m.
Voltage tolerance: -15 to 10 %.
Frequency: 50/60 Hz (48 Hz to 62 Hz).
Phase imbalance: ≤ 3 % of the rated phase-phase input voltage.
Overvoltage according to Category III (EN 61010/UL 508C).
Transient voltages according to Category III.
Maximum of 60 connections per hour (1 every minute).
Typical efficiency: ≥ 97 %.
Typical input power factor:
- 6 pulses: 0.92 at rated condition.
- 12 pulses: 0.97 at rated condition.
