CBRM5EL Automatic Reclosing MCCB
CBRM3EL Remote Reclosing MCCB
CBRM5E Intelligent MCCB
CBRM5EKd Electronic MCCB
CBRM5Kd Compact MCCB
CBRM5K Lockable MCCB
CBRM5EN Primary-secondary Separated MCCB
CBRECB Meter Remote Control MCCB
CBRB7BL Type B Smart RCBO
CBRB7 Compact MCB
CBRB7-AP PV Grid-connected MCB
CBRW3 4000A ACB
CBRW3 2500A ACB
CBRW3 1600A ACB
China CBRM5 Compact Circuit Breaker (MCCB) - High Breaking Capacity from Reliable Suppliers & Factory
Product Model & Description
Operating Environment
Normal Operating Conditions
- The upper limit of ambient air temperature shall not exceed +40°C, the lower limit shall not be lower than -5°C, and the average temperature within 24 hours shall not exceed +35°C. Note: When the ambient air temperature exceeds +40°C or falls below -5°C, the use of the circuit breaker should be subject to agreement with the manufacturer.
- Installation altitude shall not exceed 2000 m.
- The relative humidity of the atmosphere shall not exceed 50% at the maximum ambient temperature of +40°C. Higher relative humidity is allowed at lower temperatures (e.g., 90% at 20°C), with consideration given to condensation that may occur due to temperature changes on the product surface.
Normal Installation Conditions
- Installation category: Category Ⅲ for the main circuit, Category Ⅱ for the control and auxiliary circuits.
- Installation orientation: Generally installed vertically (upright), but horizontal (flat-mounted) installation is also permissible.
- Pollution degree: Degree 3.
- External magnetic field: The external magnetic field in the installation location shall not exceed 5 times the geomagnetic field in any direction.
Trip Unit Types & Accessory Codes
Main Technical Parameters
|
Model |
CBRM5Kd-125i |
CBRM5Kd-160 |
CBRM5Kd-250 |
CBRM5Kd-400 / CBRM5Kd-630i |
CBRM5Kd-800 |
||||||||||||||||
|
Frame Size Current Inm(A) |
125 |
160 |
250 |
400, 630 |
800 |
||||||||||||||||
|
Rated Current In(A) |
16, 20, 25, 30, 32, 40, 50, 63, 70, 75, 80, 90, 100, 125 |
16, 20, 25, 30, 32, 40, 50, 63, 70, 75, 80, 90, 100, 125, 140, 150, 160 |
100, 125, 140, 150, 160, 175, 180, 200, 225, 250 |
225, 250, 280, 300, 315, 350, 400, 500, 550, 630 |
630, 700, 800 |
||||||||||||||||
|
Number of Poles |
3 |
4 |
3 |
4 |
3 |
4 |
3 |
4 |
3 |
4 |
|||||||||||
|
Rated Insulation Voltage Ui(V) |
1000 |
||||||||||||||||||||
|
Rated Operation Voltage Ue(V) |
AC380, AC400, AC415 |
AC380, AC400, AC415, AC660, AC690 |
|||||||||||||||||||
|
Rated Impulse Withstand Voltage Uimp(kV) |
8 |
12 |
|||||||||||||||||||
|
Arc Distance(mm) |
50 |
100 |
|||||||||||||||||||
|
Breaking Capacity Level |
L |
M |
H |
L |
M |
H |
L |
M |
H |
L |
M |
H |
L |
M |
H |
||||||
|
Ultimate Short-Circuit Breaking Capacity Icu(kA) AC380V/AC400V/AC415V |
10 |
18 |
25 |
25 |
36 |
50 |
36 |
50 |
70 |
50 |
70 |
100 |
50 |
70 |
100 |
||||||
|
Service Short-Circuit Breaking Capacity Ics(kA) AC380V/AC400V/AC415V |
10 |
18 |
25 |
25 |
36 |
50 |
36 |
50 |
70 |
50 |
70 |
100 |
50 |
70 |
100 |
||||||
|
Ultimate Short-Circuit Breaking Capacity Icu(kA) AC660V/AC690V |
- |
- |
- |
8 |
10 |
10 |
10 |
10 |
10 |
10 |
15 |
20 |
15 |
20 |
20 |
||||||
|
Service Short-Circuit Breaking Capacity Ics(kA) AC660V/AC690V |
- |
- |
- |
4 |
5 |
5 |
5 |
5 |
5 |
10 |
15 |
15 |
13 |
15 |
15 |
||||||
|
Operating Performance (operations) |
Energized |
1500 |
1500 |
1000 |
1000 |
500 |
|||||||||||||||
|
De-energized |
8500 |
8500 |
7000 |
4000 |
2500 |
||||||||||||||||
|
Total |
10000 |
10000 |
8000 |
5000 |
3000 |
||||||||||||||||
Protection Characteristics
For Distribution Applications
|
Rated Current (A) |
Thermal Trip Unit (Ambient Temp +40°C) |
Magnetic Trip Unit Operating Current (A) |
|
|
1.05In (Cold State) Non-Tripping Time (h) |
1.3In (Hot State) Tripping Time (h) |
||
|
10 ≤ In ≤ 63 |
No Tripping Within 1 hour |
≤ 1 |
10In ± 20% |
|
63 < In ≤ 800 |
No Tripping Within 2 hours |
≤ 2 |
|
For Motor Protection
|
Rated Current (A) |
Thermal Trip Unit (Ambient Temp +40°C) |
Magnetic Trip Unit Operating Current (A) |
||||
|
1.0In (Cold State) Non-Tripping Time (h) |
1.2In (Hot State) Tripping Time (h) |
1.5In (Hot State) Tripping Time (h) |
7.2In (Cold State) Tripping Time (h) |
Trip Level |
||
|
10 ≤ In ≤ 25 |
No Tripping Within 2 hours |
≤ 2 |
≤ 2min |
0.5s < Tp ≤ 5s |
5 |
12In ± 20% |
|
25 < In ≤ 250 |
≤ 4min |
4s < Tp ≤ 10s |
10 |
|||
|
250 < In ≤ 800 |
≤ 8min |
6s < Tp ≤ 20s |
20 |
|||
Circuit Breaker Classification
- By Number of Poles: Three-Pole, Four-Pole
- By Application: For Distribution, For Motor Protection
- By Operating Method: Direct Handle Operation, Electric Operation (indicated by "p"), Rotary Handle Operation for Switchgear (indicated by "Z")
The ambient air temperature should be between -5°C and +40°C, with a 24-hour average not exceeding +35°C. For operations outside this range, please consult the manufacturer.
The standard installation altitude for the CBRM5 circuit breaker should not exceed 2,000 meters.
The CBRM5 series circuit breakers are classified and available in both Three-Pole and Four-Pole configurations.
It supports three operating methods: Direct Handle Operation, Electric Operation (indicated by "p"), and Rotary Handle Operation for Switchgear (indicated by "Z").
Yes, the CBRM5 circuit breaker is classified by application for either power distribution or motor protection, with specific thermal and magnetic trip characteristics tailored for each application.