APC Symmetra PX 20kW Scalable to 40kW N+1, 400V SY20K40H User Manual
Product codes
SY20K40H
Maintenance Bypass Panel 60kW /
Symmetra
®
PX 10 - 40 kW, 400V
990-1277
Maintenance Bypass Panel 60kW /
Symmetra
®
PX 10 - 40 kW, 400V
990-1277
Maintenance Bypass Panel60kW /
Symmetra
®
PX 10 - 40 kW, 400V
990-1277
Recommended Source Connections
1) Input electricity to be provided from a dedicated, grounded 4-wire WYE power supply source
with a grounded neutral.
2) Ensure clockwise voltage phase rotation (L
1
,L
2
,L
3
).
3) All wire sizes must comply with national and local codes.
Recommended Current Protection
4) Input; 100 Amp gL type current-limiting fuse on each input phase.
5) Output; 63 Amp 3-Pole AC circuit breaker or a 63 Amp gL fuse with 30kAIC.
Recommended Wiring for a 40°C Temperature Environment
6) Input cables: 35mm
2
. Output cables: 16 mm
2
. External PE cable: 16 mm
2
.
Refer also to local electrical regulations.
7) Neutral Output Wires; rate for 173% of output phase current if feeding all Switch Mode Power
Supply loads without power factor correction.
4
Wall Fitting
Figure 4.1
5
Wiring Overview
6
Input/Output Wiring
Make sure unit is in its location of use before wiring begins.
Loosen screws to remove plate.
Punch holes as required and reinstall panel before mounting wiring hardware.
7
Connecting the UPS to the MBP
Output Voltage (on line)
3-Phase
380V 400V 415V
Output Current (nominal, per phase)
61A 58A 56A
Maximum Output Current
(in bypass only at 125% overload, per phase)
(in bypass only at 125% overload, per phase)
76 A
Neutral Output Current (with 100% switch mode load)
106A 100A 96A
*note 7
Output Current Protection (external to enclosure, not supplied)
63A *note 5
B
A
Weight of MBP: 30 kg.
4 x ø 8.5 mm
.
Fixing holes in rear box
POWER
INTERFACE WIRING
SYMMETRA PX
Input
Power
Output
Power
EPO
MAINTENANCE
BYPASS PANEL
X001
SYSTEM INPUT
UPS INPUT
UPS OUTPUT
X004
SYSTEM OUTPUT
N
L1
L2
L3
N
L1
L2
L2
L3
N
L1
L3
Connect UPS Input and Output power.
Connect System Input and Output.
Connect Maintenance Bypass Panel control wiring, X010.
1
2
2
3
2
2
1
1
3
Rear Wiring
Bottom Wiring
1
1
2
1
2
1
2
J6
J1
J3
Emergency Power
OFF Switch Keep
EPO wire routing
isolated and
use separate
EPO conduit
OFF Switch Keep
EPO wire routing
isolated and
use separate
EPO conduit
AC
Output
Output
AC
Input
Input
DC Input
(Optional XR)
1/2
Q001 UPS input switch (N/O position)
3/4
Q002 UPS output switch (N/O position)
5/6
Q003 UPS service bypass switch
(N/C position)
7/8
OK to operate UPS Output switch Q002
9/10
OK to operate service bypass switch
Q003
11/12
Not used
13/14
External Switch Gear present
4
Ground
N/O EPO Control
N/C EPO Control
3/2
Relay Coil 1
1
Internal
Power
+24V Supply
8
Ground
7/6
Relay Coil 2
5
Internal
Power
+24V Supply
Connect power input and output wiring to terminals
as shown. Route Input and Output in separate
conduits.
as shown. Route Input and Output in separate
conduits.
Make Ground connections as shown. Feed ground
wire through Ferrite beads provided.
wire through Ferrite beads provided.
Connect EPO as shown schematically in Section 5.
Connect MBP as shown.
Emergency shut-down
with internal supply
CAUTION!
Ensure clockwise phase
rotation and neutral location
Ensure clockwise phase
rotation and neutral location
CAUTION!
Ensure clockwise phase
rotation and neutral location
Ensure clockwise phase
rotation and neutral location
Input/Output Wiring of Maintenance Bypass
Panel (MBP)
Panel (MBP)
Input signals: Contact load: TTL
Output Relays:
3
2
1
1
4
1
2
3
4
0.3VA/1.9kW
240V/8A
Power Terminal Lug Diameter is 8 mm,
Torque Value: 6Nm.
Wiring Steps