Delixi NAVIGATOR Series User manual

DZ47LE-125
Residual Current Operated Circuit-Breaker
NAVIGATOR
Series
User Manual
Please carefully read this User Manual before installing
and operating the product, and keep this manual properly
for future reference

Safety Notice
Please carefully read this instruction before the installation, operation, run, maintenance, and inspection, and
follow the contents of the instruction to properly install and operate this product.
Danger:
⚫Do not operate the circuit breaker with your wet hands;
⚫Do not touch the energized parts during operation;
⚫Mark sure that the product is de-energized during the maintenance and service;
⚫Do not use the short circuit method for product testing;
Caution:
⚫The installation, maintenance and service shall be performed by the qualified professional;
⚫Three-pole and four-pole products are only suitable for three-phase system power supply;
⚫Various characteristics of product have been set in factory and cannot be removed or adjusted without
permission during operation;
⚫Please confirm that the rated voltage, rated current, frequency and characteristics of the product meet the
operating requirements before use;
⚫In order to prevent short circuit between phases, exposed wire or copper busbar should be insulated;
⚫If you need to test insulation resistance or power frequency withstand voltage, you must first disconnect the
electronic components between the current circuit, otherwise it will damage the product performance;
⚫This product only provides protection for leakage faults generated at the load end;
⚫For less wiring, wrong wiring, this product can not play the role of leakage protection;
⚫If found damage or abnormal sound when unpacking, please stop the operation immediately and contact the
supplier;
⚫This product is not suitable for some special applications such as frequent starts of motor, electric heating
equipment, high capacity cabinet, high inductive or high capacitive loads, or high temperature environment;
⚫When scrapping the product, please dispose the product waste properly. Thanks for your cooperation.

About DZ47LE-125 Residual Current Operated Circuit Breaker
● Panel Introduction
Legends:
1 Power supply terminal 2 Company Logo 3 Rated current: 63A, 80A, 100A, 125A
4 Technical parameter: Ue: 230V (1P+N,2P)/ 400V (3P,3P+N,4P), Icu: 10kA, Ics=75% Icu, Uimp: 4kV
(C) Ii=8.5In (for distribution protection), (D) Ii=12In(for motor protection)
ΙΔm = 2500A
8 Wiring diagram
5 Reference standard: GB/T 14048.2 IEC 60947-2
6 Load terminal 7 Test button
9 Residual operated current and time
10 Reset button

Normal Operation, Installation and Transport Conditions
●Normal Operation and Installation Conditions
(1) The ambient air temperature is not higher than +60℃, and is not below -20℃, and the average value
within 24 hours does not exceed +35℃;
(2) The altitude of the installation site does not exceed 2000m;
(3) The relative humidity of the atmosphere does not exceed 50% when the highest ambient temperature is
+60℃, and a higher relative humidity is allowed at lower temperatures, such as 90% at 20℃. Protective
measures shall be taken for condensation occasionally occurred due to temperature changes.
(4) The external magnetic field nearby the residual current operated circuit breaker installation site shall not
exceed 5 times earth magnetic field in any direction;
(5) The installation position shall be vertical, and the inclination angle at each direction shall not exceed 10°;
(6) Installed at a place where there is no impact, vibration, and rain or snow erosion;
(7) Pollution level: Level 2;
(8) Installation category: Class II, III;
(9) Protection grade: IP40. Installed in a power distribution box, a power distribution cabinet or tank.
● Normal Storage and Transport Conditions
(1) Temperature: -40℃~+70℃;
(2) Relative humidity (at 25℃): ≤95%;
(3) During the transport, please handle the product gently, and do not upside it down, and prevent the product
from harsh collision.

Main Specifications and Technical Parameters
Main technical parameters are listed in Table 1
Table 1 Main technical parameters
Model Pole Neutral
line
Freq.
Hz
Rated
current
In A
Rated
voltage
Ue V
Rated
short
circuit
breaking
capacity
Icn A
Rated
residual
operating
current
I△n mA
Rated
residual
non-
operating
current I△
no
mA
Breaking
time at
I△n
s
Rated
residual
making
and
breaking
capacity
I△m
A
Release
type
DZ47LE-
125
1 N
50
63
80
100
125
230
10000
(Ics=75
%Icu)
30
50
75
100
300
15
25
37.5
50
150
≤0.1 2500
C
Ii=8.5ln
D
Ii=12ln
2
3
4003 N
4
The protection characteristics of the overcurrent release are listed in Table 2
Table 2 Protection characteristics of the overcurrent release
Type of
overcurrent
instantaneous
release
Test current
A
Start
state Test time Expected result Remarks Reference temperature
C, D 1.05In Cold
state
t≤1h (In≤63A)
t≤2h (In＞63A) Not-trip --
C, D 1.31In Followed
by test
t＜1h (In≤63A)
t＜2h (In＞63A) Trip
The current rises to
the specified value
within 5s
C, D 2.55In Cold
state 1s＜t＜120s Trip --
C 8.5In×80% Cold
state t≤0.2s Not-trip
Turn on the auxiliary
switch to supply
power
D 12In×80%
C 8.5In×120% Cold
state t≤0.2s Trip
Turn on the auxiliary
switch to supply
power
D 12In×120%

Protection characteristics curve of circuit breaker are illustrated in Fig. 1 and Fig. 2
Fig. 1
C type thermal/electromagnetic
trip characteristics curve
Fig. 2
D type thermal/electromagnetic
trip characteristics curve

Outline and Installation Dimensions
This series of circuit breakers are rail-mounted, suitable for TH35-7.5 steel mounting rails.
The outline and installation dimensions are shown in Fig. 3.
Fig. 3
Product Accessories
There are two different accessories in the circuit breaker, including OF auxiliary contact, SD alarm contact.
All accessories are installed on the left side of the product.
Installation, Operation and Maintenance
Installation and Operation
(1) Before installation, check whether the product marks is consistent with the working conditions.
(2) Press the Reset button before power-on.
(3) Before power-on, operate the residual current operated circuit breaker several times and check that its
mechanism works flexibly and reliably without blockage.
(4) "1", "3", "5" and "N" of the residual current operated circuit breaker are power supply terminals,
"2, "4", "6" and "N" are load terminals, and inversion is not allowed.
(5) The cross-sectional areas of the connecting wire are listed in Table 3.
Table 3 Sectional area of the connecting wire and the rated current
Rated current A 63 80 100 125
Sectional area of wire mm2 16 25 35 50
Wiring torque N●m Both the power supply and load are 3.5
en
t
(6) After power-on, operate the test button of the residual current operated circuit breaker to confirm whether it
can work reliably.
(7) When the handle moves upwards, the indicator window displays red, indicating that the circuit is connected;
when the handle moves downward, the indicator window displays green, indicating that the circuit is disconnected.
(8) When installation, insert the residual current operated circuit breaker into the mounting rail to fix the residual
current operated circuit breaker on this rail without looseness or falling off. To remove the residual current
operated circuit breaker, pull the stop block downward for removal.
The working reference temperature of the residual current operated circuit breaker is +30+5 0℃. When the ambient
temperature changes, its rating shall be corrected. The temperature correction coefficients are listed in Table 4; if
multiple residual current operated circuit breakers are all installed in a closed box, the temperature inside the box
will rise, so that the rated current shall multiply by the derating coefficient 0.8.

Table 4 Rated current and temperature correction coefficient table
Rated
current
(A)
Rated current correction value A
-20℃ -10℃ 0℃ +10℃ +20℃ +30℃ +40℃ +50℃ +60℃
63 78.9 75.7 72.5 69.3 66.2 63 59.2 55.4 51.6
80 100 96 92 88 84 80 75.2 70.4 65.6
100 125 120 115 110 105 100 94 88 82
125 169.2 162.8 143.8 137.5 131.2 125 117.8 111.5 105
Maintenance
1 Maintenance must be operated by qualified personnel;
2 It must be ensured that the product is not charged (except for testing items with the test button);
3 Under normal operating conditions, it is repaired and maintained once a year, and the maintenance content is
shown in Table 5.
Table 5 Maintenance
Item Content
Appearance
No dust, no condensation, clean if necessary
No damage
No discoloration of the shell and connecting terminals
Terminal connection Tighten according to the wiring torque in Table 3 without loosening
Handle closing/opening operation Operation should be flexible
Test button After the product is tripped, the handle indicator is at the tripped position
Insulation test It is strictly forbidden to conduct insulation test between phases at the load end
Test button test Carry out simulated leakage protection test once a month

Fault Analysis and Troubleshooting
Fault Cause Solution
Misoperation
Misoperation caused by
improper use of residual
current operated circuit
breaker
The three-phase residual current operated circuit
breaker is used in the three-phase four-wire circuit.
Since the normal working current in the neutral
line does not pass through the current transformer,
as long as the single-phase load is started, the
residual current operated circuit breaker will
operate.
3P Residual current operated circuit breaker
Three-phase four-wire circuits must use 3P+N or
4P residual current operated circuit breakers.
3P+N or 4P Residual current operated circuit
breaker
Misoperation caused by the
grounding of the neutral line
at the load side of the residual
current operated circuit
breaker
The neutral line at the load side of the residual
current operated circuit breaker is grounded, which
may cause misoperation when the normal operating
current passes through the grounded point
Residual current operated circuit breaker
Connect the ground wire to the neutral line of the
power side of the residual current operated circuit
breaker
Residual current operated circuit breaker
Misoperation caused by the
leakage current and wire
capacitance current
The length of the wire laying against the ground at
the load side is too long, there is a large capacitive
current to the ground. The residual current operated circuit breaker with a
larger residual operating current is selected
Earth leakage current of the wire at the load side
increases due to the reduction of the insulation
Failure to
operate
Failure to operation is caused
by repeated grounding of the
load side of the residual
current operated circuit
breaker
The neutral line on the load side of the residual
current operated circuit breaker is grounded. When
a leakage fault occurs in the line, the leakage
current is shunted through the ground point, so that
the difference between the leakage current
generated on the line and the current flowing back
to the N-phase is less than the rated residual
operating current, resulting in failure to operate
Residual current operated circuit breaker
Remove the repeated grounding of the load side
Residual current operated circuit breaker
Failure to operation is caused
by lackling of phase on the
power supply side of three-
phase (or four-phase) residual
current operated circuit
breaker
The phase line on the power side of three-phase (or
four-phase) residual current operated circuit
breaker is not connected as required
Connect the power side phase wire as required

Unpacking Inspection
After unpacking, please check whether the product is intact, whether the exposed metal is rusty, and whether the
product is defected due to poor transport or storage. If found the above phenomenon, please stop the product, and
contact the supplier timely for solution.
Company Commitment
Under the condition that users follow the use and storage conditions and the product are well sealed, within 36
months from the production date, our company will provide repair and replacement service free of charge for any
damage or abnormal operation due to poor manufacture quality. A paid repair will be provided if the warranty
period expires. For any damage due to one of the following situations, a paid repair will be given even if within
the warranty period:
(1) Improper operation, maintenance, or storage;
(2) Modified and improper repair without permission;
(3) Damage due to falling off or found during installation after purchase;
(4) Force majeure such as earthquakes, fires, lightning strikes, abnormal voltages, and secondary disasters; If
you have any question, please contact the dealer or our company’s customer service department.
Order Notice
Please specify the following items when ordering:
1) Name, model and specification of the residual current operated circuit breaker;
2) Rated current of the residual current operated circuit breaker;
3) Residual operating current of the residual current operated circuit breaker;
4) Number of poles;
5) Qty.
Example: To order DZ47LE-125, three-pole,C type, rated current 100A, rated residual operating current
30mA, 100 units.
Please specify: To order DZ47LE-125/3P, C100, 30mA, 100 units.

Certificate
DELIXI ELECTRIC LTD
Name: Residual Current Operated Circuit-Breaker
Model: DZ47LE-125
This product passes the inspection and is allowed to be
shipped.
Standard: GB/T 14048.2
Inspector: Check 02
Production date: See label on inner box
www.cn-delixi.com
The first edition of this manual was issued on July., 2019.