82
Type designation
ST535kWh-250kW-2h ST1070kWh-250kW-4h
Grid voltage range
360 ~ 440 V
Nominal grid frequency
50/60 Hz
Nominal grid frequency
range
45~55 Hz, 55~65 Hz
Dimensions(W*H*D)
*
1800 * 2450 * 1230 mm
Weight
*
1600±100 kg
Degree of protection
IP54
Anti-corrosion grade
C3
Allowable relative humidity
range
0 ~ 95 % (non-condensing)
Operating temperature range -30 ~ 50℃ (> 45℃ derating)
Max. working altitude
3000m
Communication interfaces Ethernet
Communication protocols
Modbus TCP
Compliance
IEC 61000, IEC 62477, AS 4777.2
12.2 Tightening Torques
Tighten the cable with proper torque shown below to prevent the poor contact, high contact
resistance, or fire caused by the looseness of cable lugs:
Bolt Torque(N·m) Bolt Torque(N·m)
M3 0.7~1 M8 18~23
M4 1.8~2.4 M10 34~40
M5 4~4.8 M12 60~70
M6 7~8 M16 119~140
*The torque values listed in the table are for the combination of bolt and nut, and do not
apply to riveted nuts or riveted screws, etc. Please refer to the actual situation!
**Secure the cable in proper place to reduce pressure of cable lug.
12.3 Quality Assurance
When product faults occur during the warranty period, SUNGROW ENERGY STORAGE
TECHNOLOGY CO., LTD.(SUNGROW) will provide free service or replace the product with
a new one.
12 Appendix System Manual
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