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The SMA 3-Phase Multicluster Box is the main AC distribuiton board in the multicluster system and a component of SMA multicluster technology. It connects the Sunny Island cluster and the power generators within a stand-alone grid.
Load Connection | |
Number | 1 x three-phase |
Rated power | 300 kW |
Rated grid voltage between L and N | 230 V |
Rated grid voltage between L1 and L2 | 400 V |
AC voltage range between L1 and N | 172.5 V to 250 V |
AC voltage range between L1 and L2 | 300 V to 433 V |
Rated frequency | 50 Hz |
Frequency range | 40 Hz to 70 Hz |
Current at rated values | 3 x 435 A |
Diameter of the screws for cable connection | 12 mm |
Torque | 25 Nm |
Maximum connectable conductor cross-section | 300 mm^2 |
Fuse | LV/HRC size 3 |
Permissible fuse rating | 100 A - 500 A |
Sunny Island Connection | |
Maximum number of Sunny Island inverters | 36 |
Rated power Sunny Island | 216 kW |
Current at Sunny Island ratings | 3 x 313 A |
Sunny Island power at 45°C | 195 kW |
Sunny Island current at 45°C | 3 x 283 A |
Sunny Island power over 30 minutes at 25°C | 288 kW |
Sunny Island current over 30 minutes at 25°C | 3 x 417 A |
Conductor cross-section | 6 mm^2 to 16 mm^2 |
Fuses | 36 x circuit breaker C40 A |
Generator Connection | |
Number | 1 x three-phase |
Rated grid input power | 300 kW |
AC input current | 3 x 435 A |
Maximum relative short-circuit current | 10 kA |
Diameter of the screws for cable connection | 12 mm |
Torque | 25 Nm |
Maximum connectable conductor cross-section | 300 mm² |
Fuse | LV/HRC size 3 |
Permissible fuse rating | 100 A to 500 A |
General Specifications | |
Number of line conductors | 3 |
Permitted grid configuration | TN |
Dimensions | 1,200 x 2,000 x 800 mm (WxHxD) |
Weight | 400 kg |
Exterior structure | Cabinet |
Rated voltage of auxiliary circuits | 24 VDC |
Maximum installation height above MSL | 2,000 m |
Degree of protection of enclosure | IP54 |
Degree of protection of inner protective cover | IP20 |
Protection class | II |
Overvoltage category | 3 |
Rated impulse withstand voltage at 2,000 m above | 4.8 kV |
Rated insulation voltage of switch cabinet wiring | 2.5 kV AC |
Rated short-time withstand current | 10 kA |
Relative rated short-circuit current | 10 kA |
Rated load factor | 0.8 |
EC declaration of conformity | Yes |
Operating temperature range | 25C - +60C |
Humidity | 0% - 100% |
Free Shipping | No |
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