12
Compressor usage and electrical data
COMPRESSOR 30RA
Reference code I Nom I Max LRA* Circuit 040 050 060 070 080 090 100 120 140 160 200 240
DQ 12 CA 001EE 14.0 19.1 130 A A1
BB1
DQ 12 CA 002EE 16.2 22.1 130 A A2 A1 A1
B B2B1B1
DQ 12 CA 031EE 21.9 28.3 145 A A2 A1+A2 A2 A1+A2
B B2 B2 B1+B2
DQ 12 CA 036EE 24.5 32.8 155 A A1 A1+A2 A1 A1 A1+A2 A1+A2 A1+A2+A3
B B1+B2 B1+B2+B3 B1+B2+B3
Legend:
I Nom Nominal current draw at Eurovent conditions (see definition of conditions under nominal unit current draw), A
I Max Maximum operating current at 360 V, A
LRA Locked rotor current, A
* With option 25 (electronic starter) the LRA value is reduced by 40%; the maximum start-up time per compresor is <0.8 seconds.
Short-circuit stability and protection
30RA Short-term short-circuit stability (1s) With fuse Other fuses Other protection type
Without fuse
rms value/peak rms value rms value I
2
t (A
2
s)/peak limit
kA* kA ** kA*** kA****
040-080 5/7.5 80A gL:50 100A gL:30 19200/12
125A gL:25
160A gL:6
090-160 8/15 160A gL:100 200A gL:35 155000/20
200 8/15 200A gL:100 224A gL:40 280000/20
250A gL:35
240 8/15 250A gL:50 N/A 550000/25
* This value corresponds to the switch/disconnect capacity, to the power distribution bus bar system capacity (if used) and to the protection circuit capacity in the standard
unit.
** If the short-circuit current is higher, the unit can be protected by the fuse shown for the specific level.
The fuses (not supplied for Carrier units) are as recommended, to be installed upstream of the unit.
For unit sizes 040 to 160 a fused disconnect switch, equipped with fuses, can be installed in place of the standard unit switch. This should be done on site; please
contact the local service department or a qualified electrician. Alternatively please order the special version from the factory by contacting your local Carrier dealer.
For unit sizes 200 and 240 the installation requires drilling a hole into the control box, changing of the front door, and adapting the bus bar to be able to install the new
fused disconnect switch which is larger than the one used for the standard units.To order this special version from the factory, contact your local Carrier office.
List of recommended components with Siemens reference details:
30RA Fused disconnect Contact protection Control handle NH Fuses New protection level with fused
disconnect switch, rms value, kA**
040-080 80 A: 3KL7114-3AA00 3KX71-32-1AA00 Use from disconnect switch 80 A 00gL: 3NA3 824 (3 off) 100
090-160 160 A: 3KL7123-3DA00 3KX71-32-2AA00 of the standard unit 160 A 00gL: 3NA3 836 (3 off) 50
200-240 200 A: 3KL7131-3AA00 3KX71-32-3AA00 + 3KX7112-4AA00 200 A 1gL: 3NA3 140 (3 off) 200 A gL: 50
3KX71-31-3AA00 + 224 A 1gL: 3NA3 142 (3 off) 224 A gL: 50
3KX71-31-3AB00 250 A 1gL: 3NA3 144 (3 off) 250 A gL: 50
224 A + 250 A: 3KL7132-3AA00
240 315 A: 3KL7141-3AA00 3KX71-32-4AA00 + 3KX7112-4AA00 315 A 2gL: 3NA3 252 (3 off) 315 A gL: 40
400 A: 3KL7142-3AA00 3KX71-31-4AA00 + 400 A 2gL: 3NA3 260 (3 off) 400 A gL: 30
3KX71-31-4AB00
*** Shows the new protection values with higher-capacity fuses than those specified in the previous column. If such fuses are part of the electrical installation upstream of
the unit, this is sufficient as anti-short circuit protection to the specified level, without additional protection.
**** If a protection device, other than the recommended fuses above, is used for the installation to ensure that no additional protection is required, the protection device must
have the specified thermal limit (I
2
t) and limit effect characteristics for the short-circuit current. If the protection device does not have the specified characteristics, one of
the specified protection fuses from the previous columns must be installed.
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