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COSTAN TECHNICAL DOCUMENTATION
REVISION STATUS
TRUE COPY
PAGE 7 OF 8
PRODUCT:
EPTAGLOO
ORD
DATE
CHANGE ORDER
OF THE SIGNED
DATE OF 1st ISSUE
DOC. no.
QSM0000406A
CHAP.
No.:
050
A
23.Feb.2010
RANGE
EXTENSION
ORIGINAL
13/June/07
CHAPTER:
ELECTRICAL PANEL
TECHNICAL SPECS
ISSUED BY MKT
050 - ELECTRICAL PANEL TECHNICAL SPECIFICATIONS
1.Overview.
1.1 On-board electrical panel for the control of
3/4
compressors and
3/4
condenser fans.
2. Reference standards
2.1
EN 60204-1
in force (Electrical equipment of machines)
2.2
EN 60439-1
in force (Low-voltage switchgear)
3.Power supply and operating voltage
3.1
380V-400V/3Ph/50-60Hz
3.2
220V-230V/3Ph/50-60Hz
3.3 As for 230V auxiliary voltage adjustment, cfr. chap.6.
3.4 Observe the position of the wiring inlet
For equipment to be installed indoors, cables must enter the board from above, through
a hole drilled on the appropriate plate, which is located above the master switch. For
equipment to be installed outdoors, it is advisable to have cables enter from below,
through a hole drilled on the appropriate plate, and then lead them to the master switch
in the proper raceway.
For the purposes of maintaining the electrical panel’s protection rating it is necessary to
use the appropriate wire bushing.
Short-circuit hazard: when drilling the hole through which the wiring is going to run, it
is necessary to exercise maximum caution and prevent metal chips from entering the
electrical panel.
3.5 Power wires must be directly connected to terminals L1-L2-L3 of the master switch,
observing the cyclic direction of phases.
The earthing wire must be connected to the earthing terminal marked PE.
Connect this and then the phases.
4. Master circuit breaker and power distribution: Diagram
UTQ39010
/sheet 1.
4.1 General circuit breaker with fuses: ABB series OS from 32A up to 250A including
terminal-covering caps.
4.2 Yellow-red handle that can be padlocked (for emergency purposes) assembled onto the
door.
When servicing the equipment the circuit breaker must be OFF
5.Distribution.
5.1 Bus bar feeder system SIEMENS SIRIUS 3R, distance between bar centers 60mm.
5.2 Overcurrent switches on compressors and fans are connected to the contactors by way of
accessories that afford safe current transmission.
5.3. The overcurrent switch/contactor set is fastened to a suitable plate that can be fitted onto the
bars by spring terminals, thus ensuring secure electrical transmission.
6.Auxiliary circuit
6.1.1
Power supply and operating voltage 230V/50-60Hz. / Diagram #UTQ39020/sheet 2.
6.1.2
230V
auxiliary voltage from transformer LEGRAND 230V-400V/230V.
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