SMA STRING-COMBINER DC-CMB-U15-16 - 11 Technical Data

DC-CMB-IA-U15-xx-en
33
Installation Manual
11 Technical Data
SMA Solar Technology AG
GENERAL DATA
DC-CMB-U15-16 DC-CMB-U15-24 DC-CMB-U15-32
Max. voltage (V
N
) 1,500 V
DC
(Note 1)
Max. input short-circuit current (IscSTC) 17.2 A 13.75 A 10.31 A
Max. output short-circuit current (IscSTC) 275 A 330 A 330 A
Max Number Switch opening under load 1,000 1,000 1,000
MECHANICAL DATA
Enclosure GRP (Glass Fiber Reinforced Polyester)
Enclosure Dimensions (W x D x H in mm) 550 x 270 x 650 618 x 325 x 822
Weight 25 kg 28 kg 40 kg
Degree of Protection IP 54 (outdoor installation)
Protection Class CLASS II
Color (RAL) RAL 7035
ENVIRONMENT DATA
Ambient temperature during normal operation -25°C to 60°C ( Note 2)
Ambient temperature during storage -40°C to 70°C
Humidity 0 % to 95 % non-condensing
Altitude up to 4,000 m
DC INPUT DATA
Number of strings 16 24 32
Sealing range cable entry 5 mm to 8 mm
Input cable glands entry (per pole) 4 PG32 with 4 input
each
6 PG32 with 4 input
each
8 PG32 with 4 input
each
Input connection Directly on Fuse Holder
Conductor cross-section 4 mm
2
to 6 mm
2
Fuse holder DIN Rail Mounting - 1 pole - 1,500 V
DC
Fuse type 10/14x85 - 1,500 V
DC
- gPV
Fuse size 10 A to 30 A 10 A to 30 A 10 A to 30 A
DC OUTPUT DATA
Output cable glands Nr. 1 M50x1.5 (with
reduction) per pole
Nr. 2 M50x1.5 (with
reduction) per pole
Nr. 2 M50x1.5 (with
reduction) per pole
Clamping Area 17 mm to 38 mm 17 mm to 38 mm 17 mm to 38 mm
Conductor Material Copper or aluminium
Terminal Type Copper busbar with M12 screw
Switch Type Under Load Switch-Disconnector - 3 pole - 1,500 V
DC
SPD Protection SPD Type II 15 kA/40 kA
SPD Iscpv 6,000 A
(Note 1) Derating of V
N
versus altitude. 1.0 % per 100 m from 2,001 m to 3,000 m.
1.2 % per 100 m from 3,001 m to 4,000 m.
(Note 2) Derating of 1%/K of max. current from 50°C to 60°C.
11 Technical Data