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Distribution electrical appliances
WHKM1E MCCB
The WHKM1E series electronic molded case circuit breaker (hereinafter referred to as the "circuit breaker") is one of the new types of circuit breakers developed and manufactured by our company using advanced CAD/CAM/CAE design .
Product Details
Model and Meaning
Technical Specifications
Appearance and dimensions
Other
WHKM1E series electronic molded case circuit breaker (hereinafter referred to as circuit breaker) It is one of the new types of circuit breakers developed and manufactured by our company using advanced CAD/CAM/CAE design. Its rated insulation voltage is 1000V, suitable for AC 50Hz, and its rated working voltage is 690V. It is used for infrequent conversion and motor protection in circuits with rated current to 800A. The circuit breaker has the functions of overload long delay inverse time, short short delay inverse time, short delay fixed time, short short instantaneous and undervoltage protection, which can protect lines and power equipment from damage, and can provide low temperature to -40℃ circuit breaker.
Circuit breakers are divided into M-type (higher breaking type) according to their rated limit short-circuit breaking capacity (lcu). H-type (high-breaking type) Category II. The circuit breaker has a small size. It has the characteristics of high breaking, short flying arc and anti-vibration.
Circuit breakers can be installed vertically (i.e. vertically) or horizontally (i.e. horizontally).
The circuit breaker cannot be poured into wires. That is, only 1, 3, and 5 can be connected to the power line, and 2, 4, and 6 can be connected to the load line.
Circuit breakers are suitable for isolation.
| WHK | M | 1 | E | — | ☐ | ☐ | ☐ | / | ☐ | ☐ | ☐ | ☐ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Enterprise code |
Plastic housing Type circuit breaker |
Design serial number | Electronic type |
Shell frame grade Rated current |
Rated limit Short circuit break Competency Level |
Operator Formula (2 |
Number of poles |
Tripper side Formula and accessories Code code (see Table II) |
Purpose Code (1 |
Humid tropics Type TH |
Note: 1) Circuit breakers for distribution have no code; Circuit breakers for protecting motors are denoted by 2.
2) Direct operation without code; Electric operation is denoted by P; Turning the handle operation is indicated by Z.
◆ The type of neutral pole (N pole) of four-pole products is: N pole overcurrent protection current and time parameters automatically track the phase line setting value 100%, and N pole is combined and divided together with the other three poles (N pole is closed first and then divided);
◆ According to the rated current: WHKM1E-125 has 32, 63 and 125A, WHKM1E-250 has 250A, and WHKM1E-400 has 400A; 630A for WHKM1E-630, 800A for WHKM1E-800;
◆ The wiring methods are divided into five types: front-board wiring, back-board wiring, plug-in front-board wiring, plug-in back-board wiring, and shaft-out wiring;
◆ According to whether the circuit breaker has accessories or not, it is divided into two types: with accessories and without accessories. Accessories are divided into internal accessories and external accessories: internal accessories include shunt release, undervoltage release, auxiliary contact and alarm contact; External accessories include manual operation mechanism, motor operation mechanism, handheld WHKM1E special tester, FWB1 temperature alarm module.
| Model | WHKM1E-125 | WHKM1E-250 | WHKM1E-400 | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
Rated current of the enclosure rating Inm(A) |
125 | 250 | 400 | |||||||
|
Rated current In(A) |
32 | 63 | 125 | 250 | 400 | |||||
|
Overload long-delay setting current Ir1(A) |
16.20 25,32 |
32,36.40 45,50,55 60,63 |
63,65.70, 75.80,85 90,95,100, 125 |
100,125,140,150, 160,180,200,225, 250 |
160,200,225,250 280,315,350,400 |
|||||
|
Rated operating voltage Ue(V) |
400,690 | |||||||||
|
Rated insulation voltage Ui (V) |
1000 | |||||||||
|
Rated impulse withstand voltage (V) |
8000 | 12000 | ||||||||
| Infinity | 3/4 | 3/4 | 3/4 | |||||||
| Breakdown capability level | M | H | M | H | M | H | ||||
| Rated short-circuit breaking capacity LCU (kA) | AC400V | 50 | 75 | 50 | 75 | 65 | 85 | |||
| AC690V | 20 | 20 | 20 | 20 | 20 | 20 | ||||
| Rated short-circuit breaking capacity Ics (kA) | AC400V | 35 | 50 | 35 | 50 | 42 | 65 | |||
| AC690V | 10 | 10 | 10 | 10 | 10 | 10 | ||||
|
Rated short-circuit withstand current lcw(kA)/1s |
5 | |||||||||
| Usage Categories | A | A | B | |||||||
| Arc discharge distance (mm) | ≯50(0)** | ≯100(0)** | ||||||||
| Electrical lifespan (number of cycles) | 7000 | 7000 | 7000 | |||||||
| Mechanical lifespan | Maintenance-free | 10000 | 10000 | 10000 | ||||||
| Maintenance is in place | 20000 | 20000 | 20000 | |||||||
| Dimensions of the shape |
|
W | 92 | 122 | 107 | 142 | 150 | 198 | ||
| L | 150 | 165 | 257 | |||||||
| H | 92 | 90 | 106.5 | |||||||
| Front-board wiring | ○ | ○ | ○ | |||||||
| Rear-board wiring | ○ | ○ | ○ | |||||||
| Plug-in wiring | ○ | ○ | ○ | |||||||
| Withdrawable wiring | ○ | ○ | ○ | |||||||
| Undervoltage release | ○ | ○ | ○ | |||||||
| Shunt release | ○ | ○ | ○ | |||||||
| Auxiliary contact | ○ | ○ | ○ | |||||||
| Alarm contact | ○ | ○ | ○ | |||||||
| Motor operating mechanism | ○ | ○ | ○ | |||||||
| Manual operating mechanism | ○ | ○ | ○ | |||||||
| WHKM1E Special Tester | ○ | ○ | ○ | |||||||
| Model | WHKM1E-630 | WHKM1E-800 | ||||||
|---|---|---|---|---|---|---|---|---|
|
Rated current of the enclosure rating Inm(A) |
630 800 | |||||||
|
Rated current In(A) |
630 | 800 | ||||||
|
Overload long-delay setting current Ir1(A) |
400.420,440,460,4B0,500, 530,560,,600,630 |
630,640,660,680,700,720, 740,760,780,800 |
||||||
|
Rated operating voltage Ue(V) |
400,690 | |||||||
| Rated insulation voltage Ui (V) | 1000 | |||||||
| Rated impulse withstand voltage (V) | 12000 | |||||||
| Infinity | 3/4 | 3/4 | ||||||
| Breakdown capability level | M | H | M | H | ||||
| Rated short-circuit breaking capacity LCS (kA) | AC400V | 65 | 85 | 65 | 85 | |||
| AC690V | 20 | 20 | 20 | 20 | ||||
|
Rated short-circuit breaking capacity (lcs/kA) |
AC400V | 50 | 65 | 50 | 65 | |||
| AC690V | 15 | 15 | 15 | 15 | ||||
| Rated short-time withstand current Icw (kA)/ls | 10 | 10 | ||||||
| Usage Categories | B | B | ||||||
| Arc discharge distance (mm) | 100 | ≠100 | ||||||
| Electrical lifespan (times) | 7000 | 7000 | ||||||
| Mechanical lifespan | Maintenance-free | 10000 | 10000 | |||||
| Maintenance is in place | 20000 | 20000 | ||||||
| Dimensions of the shape |
|
W | 210 | 280 | 210 | 280 | ||
| L | 280 | 280 | ||||||
| H | 115.5 | 115.5 | ||||||
| Front-board wiring | ○ | ○ | ||||||
| Rear-board wiring | ○ | ○ | ||||||
| Plug-in wiring | ○ | ○ | ||||||
| Withdrawable wiring | ○ | ○ | ||||||
| Undervoltage release | ○ | ○ | ||||||
| Shunt release | ○ | ○ | ||||||
| Auxiliary contact | ○ | ○ | ||||||
| Alarm contact | ○ | ○ | ||||||
| Motor operating mechanism | ○ | ○ | ||||||
| Manual operating mechanism | ○ | ○ | ||||||
| WHKM1E Special Tester | ○ | ○ | ||||||
| Note: According to GB/T14048.1, the term "life" indicates the probability of the number of operation cycles that the electrical appliance can complete before repairing or replacing parts. | ||||||||
The circuit breaker meets the following criteria:
IEC60947-1 and GB14048.1 General principles for low-voltage switchgear and control equipment
IEC60947-2 and GB14048.2 New circuit breakers for low-voltage switchgear and control equipment and Annex F Additional tests for circuit breakers with electronic overcurrent protection
IEC60947-4-1 and GB14048.4 Low voltage switchgear and control equipment Electromechanical contactors and motor starters
WHKM1E-125 board front wiring (three-pole, four-pole) X-X, Y-Y are three-pole circuit breaker centers
WHKM1E-125 board rear wiring (three-pole, four-pole) X-X, Y-Y are three-pole circuit breaker center
WHKM1E-125 plug-in board front wiring (three-pole) X-X, Y-Y are three-pole circuit breaker centers
WHKM1E-125 plug-in board rear wiring (three-pole, four-pole) X-X, Y-Y are the center of three-pole circuit breaker
WHKM1E-250 board front wiring (three-pole, four-pole) X-X, Y-Y are three-pole circuit breaker centers
WHKM1E-250 board rear wiring (three-pole, four-pole) X-X, Y-Y are three-pole circuit breaker center
WHKM1E-250 plug-in board front wiring (three-pole) X-X, Y-Y are three-pole circuit breaker centers
WHKM1E-250 plug-in board rear wiring (three-pole, four-pole) X-X, Y-Y are the center of three-pole circuit breaker
WHKM1E-400 board front wiring (three-pole, four-pole) X-X, Y-Y are three-pole circuit breaker centers
WHKM1E-400 board rear wiring (three-pole, four-pole) X-X, Y-Y are three-pole circuit breaker center
WHKM1E-630 Plug-in board front wiring (three-pole, four-pole) X-X, Y-Y are the center of three-pole circuit breaker
WHKM1E-630 Plug-in board rear wiring (three-pole, four-pole) X-X, Y-Y are the center of three-pole circuit breaker
WHKM1E-800 board front wiring (three-pole, four-pole) X-X, Y-Y are three-pole circuit breaker centers
WHKM1E-800 board rear wiring (three-pole, four-pole) X-X, Y-Y are the center of three-pole circuit breaker
WHKM1E-400 plug-in board front wiring (three-pole) X-X, Y-Y are three-pole circuit breaker centers
WHKM1E-400 plug-in board rear wiring (three-pole, four-pole) X-X, Y-Y are the center of three-pole circuit breaker
WHKM1E-630 board front wiring (three-pole, four-pole) X-X, Y-Y are three-pole circuit breaker centers
WHKM1E-630 board rear wiring (three-pole, four-pole) X-X, Y-Y are the center of three-pole circuit breaker
WHKM1E-800 plug-in board front wiring (three-pole, four-pole) X-X, Y-Y are three-pole circuit breaker centers
WHKM1E-800 plug-in board rear wiring (three-pole, four-pole) X-X, Y-Y are three-pole circuit breaker centers
Internal and External Accessories
Internal accessories of the circuit breaker (according to the user's needs, the circuit breaker accessories can be directly led out to wiring, or the lead out terminal block can be installed).
1. Under-voltage release: 50Hz AC230V, AC400V optional
Undervoltage release power (Table IX)
| Equipped circuit breaker | Undervoltage Release Power (VA) | |
|---|---|---|
| AC230V | AC400V | |
| WHKM1E-125 | 2.6 | 3.3 |
| WHKM1E-250 | 3.8 | 3.3 |
| WHKM1E-400 | 3.7 | 2.7 |
| WHKM1E-630 | 2.3 | 2.7 |
| WHKM1E-800 | 2.5 | 2.8 |
At 35% ~ 70% of the rated working voltage, the undervoltage release device should reliably trip the circuit breaker.
At 85%-110% of the rated working voltage, the undervoltage release should ensure that the circuit breaker can be closed;
When the rated operating voltage is less than 35%, the undervoltage release shall prevent the circuit breaker from closing.
Warning: The undervoltage release must be energized before the circuit breaker can be closed and closed again. Otherwise, the circuit breaker will be damaged!
※ (Under-voltage release thickness: 20 mm)
2. Shunt release
Voltage specifications: AC50Hz, 230V or 400V; DC220V or 24V (Note: DC24V is not recommended)
Between 70 and 110% of the rated control power supply voltage, the shunt release shall reliably trip the circuit breaker.
(Shunt Release Long Wire Type Wire Length: 50 mm)
(Shunt Release Terminal Type Thickness: 20 mm)
3. Alarm contacts
| Circuit breaker is in "on" and "closed" position |
|
| Position when the circuit breaker is "free trip" (alarm) |
|
※ (Alarm contact long wire type wire length: 50mm) (Alarm contact terminal type thickness: 20mm)
4. Auxiliary contacts
| The circuit breaker is in the position when it is "divided" |
|
Circuit breaker with shell grade current 400A and above (one set is four pairs of contacts) |
|
Circuit breaker with shell grade current 250A and below (one set is two pairs of contacts) | |
| Position when the circuit breaker is "closed" |
|
Circuit breaker with shell grade current 400A and above (one set is four pairs of contacts) |
|
Circuit breaker with shell grade current 250A and below (one set is two pairs of contacts) |
※ (auxiliary contact long wire type wire length: 50mm) (auxiliary contact terminal type thickness: 20mm)
4.1 Rated current of auxiliary contacts and alarm contacts (Table 10)
| Shell Class Current Rating Inm (A) | Agreed heating current Ith (A) | Rated operating current le (A) | ||
|---|---|---|---|---|
| AC400V | DC220V | |||
| Auxiliary contact | ≤250 | 3 | 0.3 | 0.15 |
| ≥400 | 3 | 0.4 | 02 | |
| Alarm contact | ≤800 | 3 | 0.3 | 0.15 |
4.2 Power-on operation performance of auxiliary contacts and corresponding test conditions (Table 11)
| Use categories | Turn on | Break off |
Power-on operation No. of cycles |
Fuck every minute Number of cycles |
Power-on time | ||||
|---|---|---|---|---|---|---|---|---|---|
| I/Ie | U/Ue | COSφ or T0.95 | I/le | U/Ue | COSφ or T0.95 | ||||
| AC-15 | 10 | 1 | 0.3 | 1 | 1 | 0.3 | 6050 | 6 | ≥ 0. 05 s |
| DC-13 | 1 | 1 | 6Pe | 1 | 1 | 6Pe | ≥ T 0. 95 | ||
4.3 Switching on and breaking capacity of auxiliary contacts under abnormal conditions (Table 12)
| Use categories | Turn on | Break off |
Power-on operation No. of cycles |
Operations per minute No. of cycles |
Power-on time | ||||
|---|---|---|---|---|---|---|---|---|---|
| I/Ie | U/Ue | COSφ or T0.95 | I/Ie | U/Ue | COSφ or T0.95 | ||||
| AC-15 | 10 | 1.1 | 0.3 | 10 | 1.1 | 0.3 | 10 | 2 | ≥ 0. 05 s |
| DC-13 | 1.1 | 1.1 | 6Pe | 1.1 | 1.1 | 6Pe | ≥ T 0. 95 | ||
Note: Table 2 above
1.6 Pe = T0.95 is an empirical formula, where Pe is in "watts" and T0.95 is in milliseconds.
2. When the total number of operating performances of the circuit breaker is less than 6050, the number of energized operating performances of the auxiliary contact may be equal to the total number of operating performances of the circuit breaker.
3. The operating frequency and energization time are allowed to be consistent with those of the main circuit of the circuit breaker.
◆ Electric operating mechanism wiring diagram
Symbol description:
SB1, SB2 operation buttons (user's own)
X Terminal Block
P1 and P2 are external power supplies. When the external power supply is DC 24V, P1 is connected to "+" and P2 is connected to "-".
(Inside the virtual frame is the internal wiring diagram of the electric operating mechanism)
◆ Starting Current, Power and Life of Electric Operating Mechanism
| Equipped circuit breaker | Starting Current (A) | Life (times) | ||||||
|---|---|---|---|---|---|---|---|---|
| Electromagnet type | Electric motor type | Electromagnet type | Electric motor type | Electromagnet type | Electric motor type | |||
| CD | CD2 | CD | CD2 | |||||
| WHKM1E-125 | ≤7 | ≤0.5 | 154 | 14 | 10000 | 10000 | ||
| WHKM1E-250 | ≤8.5 | ≤0.5 | 187 | 14 | 8000 | 8000 | ||
| WHKM1E-400 | - | ≤5.7 | ≤2 | - | 120 | - | 5000 | |
| WHKM1E-630 | - | ≤5.7 | ≤2 | - | 120 | - | 5000 | |
| WHKM1E-800 | - | 5.7 | ≤2 | - | 120 | - | 3000 | |
◆ Height of electric operating mechanism
◆ Total height of circuit breaker after installation of electric operating mechanism
| Model of circuit breaker equipped with operating mechanism | WHKM1E-125 | WHKM1E-250 | WHKM1E-400 | WHKM1E-630 | WHKM1E-800 | |
|---|---|---|---|---|---|---|
| Height (mm) | H1 | 93.5 | 95 | 151 | 152 | 152 |
| H2 | 175.5 | 180 | 249.7 | 255 | 255 | |