JUCRO

Moulded Case Circuit Breaker JCNSX250NT 250A MCCB Thermal magnetic Type from HUBEI JUCRO ElECTRIC

Group MOULDED CASE CIRCUIT BREAKER
PriceUS $30-34 / piece
Min. Order 1 piece
Terms of Payment L/C, Western Union, MoneyGram, T/T
Update Time 2019-12-19
Product Description
Moulded Case Circuit Breaker JCNSX250N 250A MCCB Thermal magnetic Type  from HUBEI JUCRO ElECTRIC
The molded case circuit breaker can automatically cut off the current when the current exceeds the jump setting.Plastic-case refers to the use of a plastic insulator as the housing of a device, used to isolate the conductors and the grounded metal parts.Plastic-case circuit breakers usually contain thermo-magnetic tripping units, while larger plastic-case circuit breakers are equipped with solid-state tripping sensors.The tripping unit is divided into: thermally magnetic tripping and electronic tripping device.
Main technique parameters
COMMON CHARACTERSTICS
Rated voltages
Insulation voltage (V)
Ui
800
Impulse withstand voltage (kV)
Uimp
AC 50/60 Hz
8
Operational voltage (V)
Ue

690
Suitability for isolation
YES

A
Pollution degree
IEC 60664-1
3
COMMON CHARACTERSTICS
Control
Manual
With toggle

With direct or extended rotary handle
Electrical
With remote control
Versions
Fixed
Withdrawable
Plug-in base
Chassis
CIRCUIT BREAKER
JCNSX250
Breaking capacity levels
F
N
H
S
L
Electrical characteristics as per IEC/EN 60947-2
Rated curent
In
40℃
250
Number of poles
2,3,4
Breaking capacity(kA rms)
Icu
AC 50/60 HZ
220/240V
85
90
100
120
150
380/415V
36
50
70
100
150
440V
35
50
65
90
130
500V
25
36
50
65
70
525V
22
35
35
40
50
660/690V
8
10
10
15
20
 Service Breaking capacity(kA rms)
Ics
%Icu
<500V
100%
Durablyity (C-O cycles)
Mechnical
20000
Electric
415V
In
10000
440V
In/2
20000
In
10000
690V
In/2
10000
In
5000
Characteristics as per Nema AB1
Breaking capacity (kA mrs)
AC 50/60 HZ
240V
85
90
100
120
150
480V
35
50
65
90
130
600V
20
20
35
40
50
Characteristics as per UL 508
Breaking capacity (kA mrs)
AC 50/60 HZ
240V
85
85
85
-
-
480V
35
50
65
-
-
600V
15
15
15
-
-
Protection and measurements
short-circuit protection
Magnetic only
Overload/short-circuit protection 
Thermal magnetic
Electrical
with netral protection(Off-0.5-1-OSN)
with ground-fault protection
with zone selective interlocking(ZSI)
Display/I,U,F,P,E, THE measurement/interrupted-current measurement
options
power meter display on door
operating assistance
counters
histories and alarms
metering com 
device status/control com
earth-leakage protection
By Vigi add-on
By VIgirex relay
Installation/connections
Dimensions(mm) and weights
dimensions mm
fixed, front connections
2/3P
105*161*86
4P
140*161*86
Weight kg
fixed, front connections
2/3P
2.4
4P
2.8
Connections
Connection terminals
Pitch
With/without spreaders
35/45mm
Large Cu or AI cables
Cross-section
mm²
300
Technical parameters
Dimension
Packing & Delivery 

Strong package, Safety first.

Inside with foam to support the product, put it in carton or wooden box, fixed it on pallet.

As long as possible to keep the products safe until it arriving customer's warehouse.

Clearly marking label outside of package, customers will be easy to identify their goods.
Our Company
20000 M2 of JUCRO Electric company land
1500 M2 of office building
5000 M2 of workshop building
Inside of JUCRO Electric office building
Inside of JUCRO Electric office building
JUCRO Electric office work area
Workshop

Vacuum Interrupter Workshop

Accept customized order.
Design the Vacuum Interrupter for you.

VCB Production Line

VCB Vacuum Circuit Breaker production Line.

VCB Vacuum Circuit Breaker production Line.

VCB Vacuum Circuit Breaker production line, Engineers routine inspection.
Quality Inspection
 Carefully inspection of each product, Quality guaranteed 
 completely data records of entire process , all the product data can be traced.