Schneider Electric NSX400-630 MicroLogic 4.3 Trip Units User Manual

NSX400-630 MicroLogic 4.3 Trip Units

ComPacT™ NSX400-630

MicroLogic 4.3 Trip Units
DOCA0187EN

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(user guides or instruction sheets )
and other documents.

PLEASE NOTE

 Electrical equipment should be installed,
operated, serviced, and maintained only by
qualified personnel.
No responsibility is assumed by
Schneider Electric for any consequences
arising out of the use of this material.
p All pertinent state, regional, and local
safety regulations must be observed when
installing and using this product.

DANGER

HAZARD OF ELECTRIC SHOCK,

EXPLOSION OR ARC FLASH

• Apply appropriate personal protective
  equipment (PPE) and follow safe electrical
  work practices. See NFPA 70E, CSA Z462,
  NOM-029-STPS or local equivalent.

• This equipment must only be installed and
  serviced by qualified electrical personnel.

• Turn off all power supplying this
  equipment before working on or inside
  equipment.

• Always use a properly rated voltage
  sensing device to confirm power is off.

• Put back all devices, doors, and covers
  before turning on power to this equipment.

• Beware of potential hazards, and carefully
  inspect the work area for tools and objects
  that may have been left inside the
  equipment.
  Failure to follow these instructions will
  result in death or serious injury.

WARNING: This product can expose
you to chemicals including lead and
lead compounds, which are known to
the State of California to cause cancer
and birth defects or other reproductive
harm.
For more information go to
www.P65Warnings.ca.gov.

HAZARD OF ELECTRIC SHOCK,

EXPLOSION OR ARC FLASH

Do not install a MicroLogic 4.3 trip unit on a
network with a voltage above 440 Va.
Failure to follow these instructions will
result in death or serious injury.

WARNING

ABSENCE OF EARTH-LEAKAGE

PROTECTION

Do not use MicroLogic 4.3AL trip units to
protect your equipment against
earth-leakage faults. These trip units only
indicate the presence of an earth-leakage
fault.
Failure to follow these instructions can
result in death, serious injury, or
equipment damage.

1 Required for Installation

2 Before Working on Equipment

1. Turn off all power supplying this
   equipment before working on or inside
   equipment.

2. Use push-to-trip button to trip the device.

3. Use a properly rated voltage
   sensing device to confirm power is off.

WARNING

HAZARD OF FIRE

• When installing the MicroLogic trip unit,
  check that the snap-off screws break
  when tightened.

• It is mandatory to use snap-off screws
  LV429513 to install a MicroLogic trip unit.

• In case of replacement of the trip unit by
  a trip unit with a different rating, you must:

• re-define the trip unit settings

• adapt the connection characteristics.
  Failure to follow these instructions can
  result in death, serious injury, or
  equipment damage.

1. Loosen and remove screws of front
cover or accessories as indicated in
instruction sheet shipped with device.
2. Install the trip unit into compartment.

DANGER

HAZARD OF ELECTRIC SHOCK,
EXPLOSION OR ARC FLASH
Put back front cover or accessories before
energizing device to prevent access to live
terminals.
Failure to follow these instructions
will result in death or serious injury.

NOTICE

HAZARD OF EQUIPMENT DAMAGE

• Be careful not to pinch wires when
  installing front cover.

• Tighten all front cover screws to stated
  torque.

• Do not over torque screws.

• Do not use power equipment to torque
  screws.
  Failure to follow these instructions can
  result in equipment damage.

1. Put back front cover and accessories
   as indicated in instruction sheet
   shipped with device.

2. Device is ready to be placed in
   service.

WARNING

LOSS OF EARTH-LEAKAGE
PROTECTION
Earth-leakage protection is inhibited when
the IΔn dial is in the OFF position.
Failure to follow these instructions can
result in death, serious injury, or
equipment damage

WARNING

LOSS OF EARTH-LEAKAGE
PROTECTION
The dial must be in position while the
circuit breaker is in use.
Failure to follow these instructions can
result in death, serious injury, or
equipment damage.

NOTICE

HAZARD OF TRIP UNIT DETERIORATION

• Turn the dial to the Test position
  when performing a dielectric test.

• Turn the dial back to the original position
  after the dielectric test.

• Do not close the transparent cover during
  the dielectric test.
  Failure to follow these instructions can
  result in equipment damage.

After the dielectric test.

After performing a dielectric test, carry
out an earth-leakage test, see pages
11, 12 and 13.

7 Earth-Leakage Protection Test

DANGER

HAZARD OF ELECTRIC SHOCK,
EXPLOSION OR ARC FLASH
Take all measures necessary to avoid the
risk of electrocution when the external
power supply voltage is greater
than 30 Va.
Failure to follow these instructions will
result in death or serious injury.

Press the test button to simulate an fr es
earth-leakage fault, which allows the
differential protection function to be
tested.
This test is mandatory before
commissioning.
Periodic test: In case of absence of
local regulation, Schneider Electric
recommends that the test is carried
out (1) every 3 months or (2) once a
month for devices in corrosive or
harsh environment.

8 Sealing

To install the sealing accessory, fr es de
consult the instruction sheet
GHD16296AA.

9 Manufacturing Date

The product’s manufacture date is
coded PP-YYYY-Www-D, where:

• PP: plant code
• YYYY: year of manufacture
• Www: week of manufacture
• D: weekday of manufacture

(Monday = 1)
Eg: 7Q-2019-W20-3 = product
manufactured at plant 7Q on
Wednesday 15 May 2019

Schneider Electric Industries SAS
35, rue Joseph Monier
CS 30323
F – 92506 Rueil Malmaison Cedex
www.se.com

References

• P65Warnings.ca.gov

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