Schneider Electric Symmetra PX 160 Maintenance Bypass Enclosure Installation Guide
- June 1, 2024
- Schneider Electric
Table of Contents
Symmetra™ PX 160
Maintenance Bypass Enclosure
Installation
SYWMBP96K160H2
12/2023
Legal Information
The information provided in this document contains general descriptions,
technical characteristics and/or recommendations related to
products/solutions. This document is not intended as a substitute for a
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It is not to be used for determining suitability or reliability of the
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Important Safety Instructions
SAVE THESE INSTRUCTIONS
Read these instructions carefully and look at the equipment to become familiar
with it before trying to install, operate, service or maintain it. The
following safety messages may appear throughout this manual or on the
equipment to warn of potential hazards or to call attention to information
that clarifies or simplifies a procedure.
This is the safety alert symbol. It is used to alert you to potential personal
injury hazards. Obey all safety messages with this symbol to avoid possible
injury or death.
The addition of this symbol to a “Danger” or “Warning” safety message
indicates that an electrical hazard exists which will result in personal
injury if the instructions are not followed.
Read these instructions carefully and look at the equipment to become familiar
with it before trying to install, operate, service or maintain it.
The following safety messages may appear throughout this manual or on the
equipment to warn of potential hazards or to call attention to information
that clarifies or simplifies a procedure.
DANGER
DANGER indicates a hazardous situation which, if not avoided, will result
in death or serious injury.
Failure to follow these instructions will result in death or serious injury.
WARNING
WARNING indicates a hazardous situation which, if not avoided, could result in
death or serious injury.
Failure to follow these instructions can result in death, serious injury, or
equipment damage.
CAUTION
CAUTION indicates a hazardous situation which, if not avoided, could
result in minor or moderate injury.
Failure to follow these instructions can result in injury or equipment damage.
NOTICE
NOTICE is used to address practices not related to physical injury. The
safety alert symbol shall not be used with this type of safety message.
Failure to follow these instructions can result in equipment damage.
Please Note
Electrical equipment should only be installed, operated, serviced, and
maintained by qualified personnel. No responsibility is assumed by Schneider
Electric for any consequences arising out of the use of this material.
A qualified person is one who has skills and knowledge related to the
construction, installation, and operation of electrical equipment and has
received safety training to recognize and avoid the hazards involved.
Per IEC 62040-1: “Uninterruptible power systems (UPS) — Part 1: Safety
Requirements,” this equipment, including battery access, must be inspected,
installed and maintained by a skilled person.
The skilled person is a person with relevant education and experience to
enable him or her to perceive risks and to avoid hazards which the equipment
can create (reference IEC 62040-1, section 3.102).
Safety Precautions
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
All safety instructions in this document must be read, understood and
followed.
Failure to follow these instructions will result in death or serious injury.
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
Read all instructions in the Installation Manual before installing or working
on this UPS system.
Failure to follow these instructions will result in death or serious injury.
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
Do not install the UPS system until all construction work has been completed
and the installation room has been cleaned.
Failure to follow these instructions will result in death or serious injury.
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
- The product must be installed according to the specifications and requirements as defined by Schneider Electric. It concerns in particular the external and internal protections (upstream breakers, battery breakers, cabling, etc.) and environmental requirements. No responsibility is assumed by Schneider Electric if these requirements are not respected.
- After the UPS system has been electrically wired, do not start up the system. Start-up must only be performed by Schneider Electric. Failure to follow these instructions will result in death or serious injury.
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
The UPS system must be installed according to local and national regulations.
Install the UPS according to:
- IEC 60364 (including 60364–4–41- protection against electric shock, 60364– 4–42 – protection against thermal effect, and 60364–4–43 – protection against overcurrent), or
- NEC NFPA 70, or
- Canadian Electrical Code (C22.1, Part 1) depending on which one of the standards apply in your local area.
Failure to follow these instructions will result in death or serious injury.
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
- Install the UPS system in a temperature controlled indoor environment free of conductive contaminants and humidity.
- Install the UPS system on a non-flammable, level and solid surface (e.g. concrete) that can support the weight of the system.
Failure to follow these instructions will result in death or serious injury.
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
The UPS is not designed for and must therefore not be installed in the
following unusual operating environments:
- Damaging fumes
- Explosive mixtures of dust or gases, corrosive gases, or conductive or radiant heat from other sources
- Moisture, abrasive dust, steam or in an excessively damp environment
- Fungus, insects, vermin
- Salt-laden air or contaminated cooling refrigerant
- Pollution degree higher than 2 according to IEC 60664-1
- Exposure to abnormal vibrations, shocks, and tilting
- Exposure to direct sunlight, heat sources, or strong electromagnetic fields
Failure to follow these instructions will result in death or serious injury.
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
Do not drill or cut holes for cables or conduits with the gland plates
installed and do not drill or cut holes in close proximity to the UPS.
Failure to follow these instructions will result in death or serious injury.
WARNING
HAZARD OF ARC FLASH
Do not make mechanical changes to the product (including removal of cabinet
parts or drilling/cutting of holes) that are not described in the Installation
Manual.
Failure to follow these instructions can result in death, serious injury, or
equipment damage.
NOTICE
RISK OF OVERHEATING
Respect the space requirements around the UPS system and do not cover the
product’s ventilation openings when the UPS system is in operation.
Failure to follow these instructions can result in equipment damage.
NOTICE
RISK OF EQUIPMENT DAMAGE
Do not connect the UPS output to regenerative load systems including
photovoltaic systems and speed drives.
Failure to follow these instructions can result in equipment damage.
Electrical Safety
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION OR ARC FLASH
- Electrical equipment must be installed, operated, serviced, and maintained only by qualified personnel.
- The UPS system must be installed in a room with restricted access (qualified personnel only).
- Apply appropriate personal protective equipment (PPE) and follow safe electrical work practices.
- Turn off all power supplying the UPS system before working on or inside the equipment.
- Before working on the UPS system, check for hazardous voltage between all terminals including the protective earth.
- The UPS contains an internal energy source. Hazardous voltage can be present even when disconnected from the utility/mains supply. Before installing or servicing the UPS system, ensure that the units are OFF and that utility/mains and batteries are disconnected. Wait five minutes before opening the UPS to allow the capacitors to discharge.
- A disconnection device (e.g. disconnection circuit breaker or switch) must be installed to enable isolation of the system from upstream power sources in accordance with local regulations. This disconnection device must be easily accessible and visible.
- The UPS must be properly earthed/grounded and due to a high leakage current, the earthing/grounding conductor must be connected first.
Failure to follow these instructions will result in death or serious injury.
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
In systems where backfeed protection is not part of the standard design, an
automatic isolation device (backfeed protection option or other device meeting
the requirements of IEC/EN 62040–1 or UL1778 5th Edition – depending on which
of the two standards apply to your local area) must be installed to prevent
hazardous voltage or energy at the input terminals of the isolation device.
The device must open within 15 seconds after the upstream power supply fails
and
must be rated according to the specifications.
Failure to follow these instructions will result in death or serious injury.
When the UPS input is connected through external isolators that, when opened,
isolate the neutral or when the automatic backfeed isolation is provided
external to the equipment or is connected to an IT power distribution system,
a label must be fitted at the UPS input terminals, and on all primary power
isolators installed remote from the UPS area and on external access points
between such isolators and the UPS, by the user, displaying the following text
(or equivalent in a language which is acceptable in the country in which the
UPS system is installed):
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
Risk of Voltage Backfeed. Before working on this circuit: Isolate the UPS and
check for hazardous voltage between all terminals including the protective
earth.
Failure to follow these instructions will result in death or serious injury.
Specifications
Electrical
UPS rating| 96 kVA|
160 kVA
---|---|---
Input voltage (V)| 380| 400| 415| 380| 400| 415
Nominal input current (A)| 154| 146| 141| 256| 243| 234
Maximum rated input current (340 V input )(A)| 169| 160| 155| 281| 267| 258
Input frequency (Hz)| 50/60
Maximum short- circuit current (kA) Icc| Rated conditional short-circuit
current Icc: 30 kA symmetrical rms Rated peak short-circuit current Ipk: 63 kA
Device: NSX400F Mic2.3 3P 320 A setting (manufacturer: Schneider Electric) for
160 kVA, or NSX250F TMD200 3P (manufacturer: Schneider Electric) for 96 kVA
Maximum short- circuit withstand (kA) Icw| Rated short-time withstand current
Icw: 10 kA symmetrical rms Rated peak withstand current Ipk: 26 kA
Short-circuit withstand time: 3 cycles
Switch Sizes
| Mains input switch Q1 (A) | 400 |
|---|---|
| UPS output switch Q2 (A) | 250 |
| Maintenance bypass switch Q3 (A) | 250 |
Upstream Protection
NOTICE
For a maximum short-circuit withstand higher than 10 kA, it is mandatory to
install a circuit breaker (NSX250F TMD200 3P or NSX400F Mic2.3 3P 320 A
setting) upstream of the maintenance bypass enclosure.
Failure to follow these instructions can result in equipment damage.
UPS rating| Required protection|
Max input current
---|---|---
96 kVA| NSX250F TMD200 3P| 169 A
160 kVA| NSX400F Mic2.3 3P 320 A setting| 281 A
Recommended Cable Sizes
NOTE: Use only copper conductors with a minimum rating for 90 °C.
NOTE: 30 ℃ ambient temperature, IEC standard 60364-5-52, Table A.52-4
(52-C3), “C” method of installation. If the ambient room temperature is higher
than 30 ℃, larger conductors are to be selected in accordance with the
correction factors of the IEC.
UPS rating| 96 kVA UPS|
160 kVA UPS
---|---|---
Input cable (L1, L2, L3, N, PE) (mm2)| 70| 120
Output cable (L1, L2, L3, N, PE) (mm2)| 50| 95
UPS rating| 96 kVA UPS|
160 kVA UPS
---|---|---
Maintenance bypass to UPS input cable (mm2)| 70| 120
UPS output to maintenance bypass cable (mm2)| 50| 95
Weights and Dimensions
| Weight (kg)| Height (mm)| Width (mm)|
Depth (mm)
---|---|---|---|---
Without packaging| 90| 1200| 800| 300
With packaging| 105| 1230| 830| 350
Environmental
| Storage| Operation
---|---|---
Temperature| -25 °C to 55 °C| 0 °C to 40 °C
Relative humidity| 0 to 95% non-condensing
Elevation| 0 to 15000 m| 0 to 3000 m
Protection class| IP20
Color| Black
Torque
| Torque (Nm)| Screws
---|---|---
Mains input terminal block| 23| M8 X 25 MSC HXG STL
Mains input to UPS terminal block| 23| M8 X 25 MSC HXG STL
UPS output terminal block| 23| M8 X 25 MSC HXG STL
System output terminal block| 23| M8 X 25 MSC HXG STL
Compliance
Safety| IEC 61439-1: 2020, Edition 3.0, Low-voltage switchgear and control
gear assemblies – Part 1: General rules IEC 61439-2: 2020, Edition 3.0, Low-
voltage switchgear and control gear assemblies – Part 2: Power switchgear and
controlgear assemblies
---|---
Earthing system| TN, TT, TNC, IT, TN-S, TNC-S
Protective class| 1
Pollution degree| 2
Product Overview
A. Cable entry
B. PE busbar
C. Q2 – UPS output switch
D. Q3 – Maintenance bypass switch
E. Q1 – Mains input switch
F. Q10 – LED protection breaker
G. LED H3 – OK to operate Q3 when light is ON
H. LED H2 – OK to operate Q2 when light is ON
I. Terminal block – signal connection to UPS
Site Planning
NOTE: Select a location for the maintenance bypass enclosure which
provides easy access to all breakers and internal components.
NOTE: Select a wall that is structurally sound and able to support the
size and weight of the maintenance bypass enclosure.
Clearance
Follow the listed clearance requirements and consult local codes for any
additional requirements.
The best location for the maintenance bypass enclosure is close to the UPS.
Front view
A.
Minimum front clearance: 650 mm
B. Minimum enclosure–to–floor clearance: 600 mm
C. Minimum side clearance: 100 mm
Installation
Prepare for Cables
NOTE: All power cables must be connected on site. External power cables
are not supplied with the maintenance bypass enclosure.
NOTE: Schneider Electric recommends to create the necessary holes for
cable access before mounting the maintenance bypass enclosure to the wall.
NOTE: The size of the holes and glands must be adapted to fit the size of
the cables.
- Open the front door of the enclosure.
- Remove the front panel.
- Remove the bottom plate.
- Drill holes for cables in the bottom plate. Make sure that the hole locations correspond to the connector locations in the enclosure.
- Reinstall the bottom plate.
Front view
Mount the Maintenance Bypass Enclosure to the Wall
- Measure and mark the four mounting hole locations on the wall.
- Drill holes in each of the four marked locations and mount the anchor bolts.
- Lift the maintenance bypass enclosure, position it against the backing and line it up with the four holes/anchor bolts. Secure the enclosure with the four bolts and flat washers.
Connect the Power Cables
NOTICE
For a maximum short-circuit withstand higher than 10 kA, it is mandatory to
install a circuit breaker (NSX250F TMD200 3P or NSX400F Mic2.3 3P 320 A
setting) upstream of the maintenance bypass enclosure.
Failure to follow these instructions can result in equipment damage.
Route the cables through the holes in the bottom plate of the maintenance bypass enclosure.- Connect the UPS input cables (L1, L2, L3, N) to the UPS input terminals and the PE cable to the PE bar.
- Connect the AC input cables (L1, L2, L3, N) to the AC input terminal block and the PE cable to the PE bar.
- Connect the system output cables from the UPS (L1, L2, L3, N) to the system output terminals and the PE cable to the PE bar.
- Connect the UPS output cables (L1, L2, L3, N) to the UPS output terminals and the PE cable to the PE bar.
Connect the Communication Cables
Diagram
NOTICE
For a maximum short-circuit withstand higher than 10 kA, it is mandatory to
install a circuit breaker (NSX250F TMD200 3P or NSX400F Mic2.3 3P 320 A
setting) upstream of the maintenance bypass enclosure.
Failure to follow these instructions can result in equipment damage.
Schneider Electric
35 rue Joseph Monier
92500 Rueil Malmason
France
+ 33 (0) 1 41 29 70 00
www.schneider-electric.com
As standards, specifications, and design change from time to time,
please ask for confirmation of the information given in this publication.
© 2013 – 2023 Schneider Electric. All rights reserved.
990-4907B-001
References
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