hager hw+ User manual

User manual
hw+
Air circuit breaker
up to 1600 A
RESET AUTO
MANUAL
In 160
0A
=
Ø5.8
COM

26LE007331A
01 About this manual 4
1.1 Safety instructions 4
1.2 Using this manual 5
02 Sentinel electronic trip unit 6
2.1 Description 6
2.2 Display 10
2.3 LI trip unit 11
2.4 LSI trip unit 12
2.5 LSIG trip unit 13
03 The types of protection device 14
3.1 List of protection devices 14
3.2 Long time delay protection 15
3.3 Short time delay protection 17
3.4 Instantaneous protection 19
3.5 Ground fault protection 20
3.6 Neutral protection 21
3.7 Zone Selective Interlocking function (ZSI) 22
04 Protection settings 25
4.1 Principle 25
4.2 Long time delay (LTD) protection setting 32
4.3 Short time delay (STD) protection setting 34
4.4 Instantaneous (INST) protection setting 36
4.5 Ground fault (GF) protection setting 37
4.6 Neutral (N) protection setting 39
4.7 Reviewing the settings 41
05 Circuit breaker operation 44
5.1 Description 44
5.2 Circuit breaker closing 47
5.3 Circuit breaker opening 49
5.4 Locking the opening and closing push buttons 51
5.5 Locking the circuit breaker in the open position using padlocks 53
5.6 Locking the circuit breaker in open position using keylocks 56
5.7 Locking the circuit breaker in the chassis using padlocks 60
5.8 Locking the circuit breaker in the chassis using keylocks 63
5.9 Racking interlock RI 67
06 Positions of the withdrawable circuit breaker in the chassis c 69
07 Positions of the withdrawable circuit breaker in the chassis 70
7.1 Changing from connected position to test position 70
7.2 Changing from test position to disconnected position 73
7.3 Changing from disconnected position to test position 75
7.4 Changing from test position to connected position 77
Contents Page

36LE007331A
8 Extracting the withdrawable circuit breaker 79
9 Inserting the withdrawable circuit breaker 81
10 Commissioning the circuit breaker 84
11 Alarm management 85
11.1Overload pre-alarm 85
11.2Overload alarm 87
11.3Trip alarm 88
11.4System alarm 89
12 Closing the circuit breaker after a trip operation 94
13 Maintenance indicator 99
14 Replacing the backup battery 100
15 Changing the rated current value In of the trip unit 107
Page

46LE007331A
About this manual
1.1 Safety instructions
Warnings and instructions
This documentation contains safety advice which must be respected for your own safety and
to prevent property damage.
Safety advice relating to your own safety is identified by a safety warning symbol in the
documentation. Safety advice relating to damage to property is identified by "ATTENTION".
The safety warning symbols and the wording below are classified according to the risk level.
DANGER
DANGER indicates an imminent dangerous situation which, if not avoided, will result in
death or serious injuries.
ATTENTION
ATTENTION indicates a warning message relating to equipment damage.
ATTENTION also indicates important instructions for use and particularly relevant
information regarding the product, which must be respected to ensure eective and safe
use.
WARNING
WARNING indicates a potentially dangerous situation which, if not avoided, may result in
serious injuries or even death.
CAUTION
CAUTION indicates a potentially dangerous situation which, if not avoided, may result in
minor or moderate injuries.

56LE007331A
About this manual
1.1 Safety instructions
Qualified personnel
The product or the system described in this documentation must be installed, operated and
maintained by qualified personnel only. Hager Electro accepts no responsibility regarding the
consequences of this equipment being used by unqualified personnel.
Qualified personnel are those people who have the necessary skills and knowledge for
building, operating and installing electrical equipment, and who have received training
enabling them to identify and avoid the risks incurred.
Appropriate use of Hager products
Hager products are designed to be used only for the applications described in the catalogues
and on the technical documentation relating to them. If products and components from other
manufacturers are used, they must be recommended or approved by Hager.
Appropriate use of Hager products during transport, storage, installation, assembly,
commissioning, operation and maintenance is required to guarantee problem-free operation in
complete safety.
The permissible ambient conditions must be respected. The information contained in the
technical documentation must be respected.
Publication liability
The contents of this documentation have been reviewed in order to ensure that the information
is correct at the time of publication.
Hager cannot, however, guarantee the accuracy of all the information contained in this
documentation. Hager assumes no responsibility for printing errors and any damage they may
cause.
Hager reserves the right to make the necessary corrections and modifications to subsequent
versions.

66LE007331A
Purpose of the document.
This manual is designed to provide users, electricians, panel builders and maintenance
personnel with the technical information required for the commissioning and operation of hw+
circuit breakers with electronic trip units.
Field of application
This document applies to hw+ circuit breakers with electronic trip units.
Revisions
Version Date
6LE007331A April 2021
Documents to consult
Document Reference
hw+ installation manual 6LE007893A
hw+ maintenance manual 6LE007897A
You can download these publications and other technical information from our website: www.
hager.fr
Contact
Address Hager Electro SAS 132 Boulevard d’Europe
67215 Obernai France
Phone + 33 (0)3 88 49 50 50
Website www.hager.fr
About this manual
1.2 Using this manual

76LE007331A
Sentinel electronic trip unit
2.1 Description
hw+ Air Circuit Breakers are equipped with a Sentinel electronic trip unit on the front to protect
against overloads and short circuits.
It has a display and adjustment dials enabling the user to configure the protection settings and
monitor its normal operation.

86LE007331A
Sentinel electronic trip unit
2.1 Description
The following characteristics are common to all the versions of the Sentinel electronic trip
units:
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1
2
3
4
5
6
3
7
1Display
2button used to:
- clear an alarm after the air circuit breaker
has tripped,
- navigate through the display screens.
3Dials for making adjustments to the
Sentinel electronic trip unit.
4Rated current value In of the air circuit
breaker. This value is provided by the
Rating Plug installed in the electronic trip
unit.
5USB-C port to connect a battery.
The Sentinel electronic trip unit is self-
powered when the circuit breaker is in
service except when:
- if the circuit breaker is open or de-
energised after tripping,
- if the withdrawable circuit breaker is in
test or disconnected position.
In these cases, you are advised to
connect an external battery to this USB-C
port or an external 24 VDC power supply
(Hager HTG911H) to the TU 24 V +/-
terminals of the terminal block in order to
view the settings through the display.
This USB-C port also allows connection
to a computer equipped with the Hager
Power Setup commissioning software
(see chapter 4.1 Principle)
6Backup battery powering the display after
electrical tripping.
It ensures that the alarm signals on the
display providing information of the cause
of the tripping are maintained.
7Backup battery housing hatch.

96LE007331A
Sentinel electronic trip unit
2.2 Display
Description of the display
Sentinel electronic trip units are equipped with a display which makes it possible to adjust
settings, visualise the instantaneous load current and see the tripping causes of hw+ circuit
breaker along with other alarm indications.
AZE
6
7
8
9
1 2 3 4 5
R
1Overload indicator: displayed as soon as the current exceeds 105% of Ir.
2Error indicator: displayed when an error is detected.
3Maintenance indicator: displayed when a maintenance intervention is required.
4Text display area: displays the name of the protection parameter during adjustment or after a trip in
addition to the error codes of detected operating system alarms.
5Low or missing battery indicator: displayed if the electronic trip unit backup battery needs
changing or is not connected.
6Tripindicator: together with the digital display zone, the text display zone and the phase display,
enables the cause of the tripping to be precisely determined.
7Overload indicator: flashes as soon as the current exceeds 105% of Ir and is lit and steady above
112.5% Ir
8Overload pre-alarm indicator: warns of an imminent tripping risk.
9ReadyToProtect indicator: displayed when the trip unit is operational and ready to protect.
ADigital display zone: used to display the values of the various settings and what the tripping value
was, using the following units.
A Ampere
 Peak amperage
S Second
I²t I²t curve
Also displays the codes of the hardware alarm triggering system.
ZPhase display: Neutral on the left / Phase L1 / Phase L2 / Phase L3.
EReference screen: shows the number of screens in the trip unit as well as its position in the display
order.
RBargraph: used to view the currents read on the most highly loaded phase L1, L2 or L3 as a
percentage of the Ir setting.

10 6LE007331A
In standby, the ReadyToProtect indicator flashes, indicating normal operation of the hw+
circuit breaker.
A short press of the button displays a 1st screen showing the highest current of the 3
phases flowing through the circuit breaker.
1
2
3
1
Current flowing through the circuit breaker in % of Ir.
2
Value in ampere of the current flowing through the circuit
breaker on the most highly loaded phase.
3
Relevant phase.
Sentinel electronic trip unit
2.2 Display

116LE007331A
The Sentinel electronic trip unit is available in 3versions: LI, LSI and LSIG
LI Sentinel trip unit
hw+ circuit breakers fitted with LI trip units are for use in electrical distribution applications.
They are used for the protection of conductors and also if the fault current is limited due to the
impedance of the conductor lengths. Settings adjustment dials are accessible on the fronts of
products and allow an accurate adjustment of the protection settings and a tripping curve that
is independent of the ambient temperature.
In 160
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1LTD Long time delay protection setting
2INST Instantaneous protection setting
3Neutral N protection setting
Sentinel electronic trip unit
2.3 LI trip unit

12 6LE007331A
LSI Sentinel trip unit
hw+ circuit breakers fitted with LSI trip units are intended for use in electrical distribution
applications. They are used for the protection of conductors and loads in cases in which a
wide range of protection settings is required. Settings adjustment dials are accessible on the
fronts of products and allow an accurate adjustment of the protection settings and a tripping
curve that is independent of the ambient temperature.
In 1 60
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1
2
3
4
1LTD Long time delay protection setting
2STD Short Time Delay protection setting
3INST Instantaneous protection setting
4N Neutral protection setting
Sentinel electronic trip unit
2.4 LSI trip unit

136LE007331A
LSIG Sentinel trip unit
hw+ circuit breakers fitted with LSIG trip units are for use in electrical distribution applications.
They are used for the protection of conductors and loads in cases in which protection against
ground faults is required within the framework of a TN-S neutral system. The settings by
means of adjustment dials are accessible from the front of the products and allow precise
adjustment of the protection and a tripping curve independent of the ambient temperature.
In 1 60
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1
2
3
4
5
1LTD Long time delay protection setting
2STD Short Time Delay protection setting
3INST Instantaneous protection setting
4GF ground fault protection setting
5N Neutral protection setting
Sentinel electronic trip unit
2.5 LSIG trip unit

14 6LE007331A
The types of protection device
3.1 List of protection devices
The Sentinel electronic trip unit protects against overcurrent and ground faults for all types
of electrical distribution in accordance with the requirements of standards IEC 60947-1 and
60947-2.
List of protection devices
- Long Time Delay protection - L: Overload protection
- Short Time Delay protection - S: Protection against low current short circuits
- Instantaneous protection - I: Protection against high current short circuits
- Ground fault protection - G: Phase-to-ground fault protection
- Neutral protection - N: Protection against overloads and short circuits which may flow
through and damage the neutral conductors.
I (A)
t (s) LS I
tr
lrlg lilsd
tsd
tg
l²t
l²t
LIr Long Time Delay protection threshold
tr Long Time Delay
S
Isd Short Time Delay protection threshold
tsd Short Time Delay
I²t ON/OFF I²t curve on Short Time Delay protection activated or not
IIi Instantaneous protection threshold
G
Ig Ground protection threshold
tg Ground protection time delay
I²t ON/OFF I²t curve on ground protection activated or not
NN% of the adjustment value of the Ir and Isd thresholds for
the phases
Protection ANSI code
L49
Si²t OFF: 50TD
i²t ON: 51
I50
Gi²t OFF: 50N-TD
i²t ON: 51N
In addition to Instantaneous protection, Sentinel trip units have MCR (Making Current Release)
protection, which is operational if a short circuit fault occurs during a closing operation.
Protection setting adjustment device
The settings of the protection device can be modified using the adjustment dials and the
display.
All protection functions are based on the root-mean-square value (RMS) of the current to take
into account the presence of current harmonics.
The extensive choice of protection curve settings facilitates coordination in terms of selectivity.

156LE007331A
Long time delay protection is designed to protect against current overloads in electrical
power distribution applications.
Long time delay protection has an inverse time protection function including a thermal imaging
function.
Long Time Delay protection curve
I (A)
t (s) L
tr
lr 6xlr
Long time delay protection
Long Time Delay parameters
LIr = Ir1 x Ir2 x In (A) Long Time Delay protection threshold
tr (s) Long Time Delay
Adjusting the lr current setting
The Long Time Delay protection Pick Up range is: 1.05 - 1.20 Ir.
The Ir current setting is adjusted using the 2 adjustment dials Ir1 and Ir2.
Rating (In) Pick Up adjustment range Ir = Ir1 x Ir2 x In (A)
400 A 145.6 - 400 A
630 A 229.3 - 630 A
800 A 291.2 - 800 A
1000 A 364 - 1000 A
1250 A 455 - 1250 A
1600 A 582.4 - 1600 A
Adjusting the tr time delay
The tr time delay defines the trigger time of the long time delay protection for a current of 6 x
Ir.
The tr time delay is adjusted using the tr adjustment dial.
The types of protection device
3.2 Long Time Delay protection

16 6LE007331A
tr adjustment range (s)
0.5 1.0 2.0 4.0 5.0 8.0 10.0 15.0 20.0 25.0
The trigger time tolerance for long time delay protection is
-(20%; - 20ms) to 0% + 30ms.
Example:
For tr = 5 s and I = 6 x Ir, the trip time for long time delay protection will be between 3.98s and
5.03s.
Modelling of conductor heating by thermal imaging
Sentinel electronic trip units have a thermal imaging function.
This function models the heating and cooling of the electrical conductors. It enables the hw+
circuit breaker to protect the conductors against consecutive current overloads by taking into
account the thermal state of these conductors.
In the presence of current, the Sentinel electronic trip units model the heating of the
conductors. In the absence of current, the Sentinel electronic trip units model the cooling of
the conductors.
a)
100%
I
b)
1) t 2)
Trip units with and without thermal imaging
Key:
a) Trip unit with consideration of cooling
b) Trip unit without consideration of cooling
1) Tripping of trip unit type a)
2) Tripping of trip unit type b).
The example above clearly shows how trip unit a) trips earlier than trip unit b), therefore
providing optimum protection to the conductors.
Sentinel electronic trip units are type a) trip units.
In addition, they take into account the cooling of the conductors not only before, but also after
tripping.
The cooling phase lasts between 1 and 35 minutes depending on the tr time delay setting.
N.B.
The thermal imaging function of the Sentinel electronic trip units cannot be deactivated.
The types of protection device
3.2 Long Time Delay protection

176LE007331A
Short time delay protection is designed to protect against short circuits.
Short time delay protection curve
I (A)
t (s) S
lsd
tsd
l²t
Short time delay protection
Short time delay parameters
S
Isd (x Ir) Short Time Delay protection threshold
tsd (s) Short Time Delay
I²t (ON/OFF) Inverse time I²t function
Adjusting the lsd pick-up setting
The lsd pick-up is adjusted using the lsd adjustment dial.
Isd pick-up adjustment range (x Ir)
OFF 1.0 1.5 2.0 2.5 3.0 4.0 6.0 8.0 10.0
When the Isd setting is OFF, the short time delay protection is deactivated.
The lsd pick-up tolerance for short time delay protection is ±10%.
Adjusting the tsd time delay
The tsd time delay is adjusted using the tsd adjustment dial.
tsd adjustment range (s) 0.05 0.10 0.20 0.40 0.60
Non-tripping time (s) 0.025 0.075 0.175 0.375 0.575
Maximum tripping time (s) 0.1 0.15 0.25 0.45 0.65
Maximum breaking time (s) 0.12 0.17 0.27 0.47 0.67
The types of protection device
3.3 Short Time Delay protection

18 6LE007331A
An inverse time function I²t = K can be activated or deactivated when adjusting the short time
delay.
This I²t function makes it possible to improve selectivity with downstream devices. It is
activated from the Isd pick-up and functions up to 10xIr.
I (A)
t (s)
10xlr
tsd
l²t
lr lsd
Short time delay protection I²t
The types of protection device
3.3 Short Time Delay protection

196LE007331A
Instantaneous protection is designed to protect against high short circuit currents. This
protection is time-independent.
Instantaneous protection curve
I (A)
t (s) I
li
Instantaneous protection
Instantaneous protection parameters
IIi (x In) Instantaneous protection threshold
Adjusting the Ii pick-up setting
The Ii pick-up is adjusted using the li adjustment dial.
li pick-up adjustment range (x In)
OFF 1.5 2.0 3.0 4.0 6.0 8.0 10.0 12.0 15.0
The li pick-up tolerance for instantaneous protection is ±15%.
Trigger time
Instantaneous protection has no adjustable time delay.
The non-tripping time is 20 ms.
The maximum tripping time is 80 ms.
The maximum breaking time is 100 ms.
The types of protection device
3.4 Instantaneous protection

20 6LE007331A
The types of protection device
3.5 Ground fault protection
Ground fault protection provides protection against high-intensity phase-to-earth fault currents
present in installations with a TN-S earthing system. It is based on the sum of the phases and
the neutral current. The time delay is adjustable.
Ground fault protection curve
I (A)
t (s)
tg
lg
l²tg
Ground protection
Ground fault protection parameters
G
Ig (xIn) Ground protection threshold
tg (s) Ground Fault protection time delay
I²tg (ON / OFF) Inverse time I²t function
Adjusting the Ig pick-up setting
The Ig pick-up is adjusted using the Ig adjustment dial.
Ig pick-up adjustment range (x In)
OFF 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 1.0
When the Ig pick-up is set to OFF, ground fault protection is deactivated.
Adjusting the tg time delay
The tg time delay is adjusted using the tg adjustment dial.
tg time delay adjustment range (s) 0.05 0.10 0.20 0.40 0.60
Non-tripping time (s) 0.025 0.075 0.175 0.375 0.575
Maximum tripping time (s) 0.1 0.15 0.25 0.45 0.65
Maximum breaking time (s) 0.12 0.17 0.27 0.47 0.67
Ground fault protection provides protection against high-intensity phase-to-earth fault
currents. It is similar to short time delay protection. It also has an I²t inverse time function,
which can be activated or deactivated while adjusting this protection.
This I²t function makes it possible to improve the selectivity of ground faults with downstream
devices. It is activated from the Ig pick-up and functions up to In.
ATTENTION
In the case of a 3-pole product, the ground fault protection is dependant on the neutral
protection setting and on the presence of an ENCT external neutral current sensor. If
an ENCT external neutral current sensor is used, it is necessary to activate the neutral
protection to take into account the sum of the phases and the neutral current.