As a reputable manufacturer of 100 Amp 4-pole AC MCCBs, we are excited to offer our products to both new and long-standing customers. Our goal is to collaborate with you in building a better future, while ensuring exceptional after-sales service and timely delivery.
At CNKA, we are committed to running our business with a pragmatic and efficient approach, and we look forward to partnering with you to create new value in the industry. Our enterprise style has set a benchmark for others to follow, and we take great pride in it. Together, let’s move forward with determination and steady progress towards our shared goals.
China supplier CNKA's newest 100 Amp 4-pole AC MCCB offers a competitive price list and utilizes plastic insulators as the casing to isolate conductors from grounding metal parts. When the current exceeds the set value, the MCCB automatically cuts off the current. Typically, these circuit breakers come with thermal magnetic trip units or solid-state trip sensors, depending on the model. The tripping unit can be either thermal magnetic or electronic. Common rated currents include 16, 25, 30, 40, 50, 63, 80, 100, 125, 160, 200, 225, 250, 315, 350, 400, 500, and 630 amperes.
Molded case circuit breakers are widely used in both industrial and civil electrical circuits, ensuring reliable protection.
CNKA 100 amp 4 pole ac mccb Parameter (Specification)
Model
Rated
Frame
Current
(A)
Rated
Current
(A)
Rated
Working
Voltage
(V)
Rated
Insulated
Voltage
(V)
Rated
Ultimate
Short-circuit
Breaking
Capacity
KA 400V
Rated
Runing
Breaking
Capacity KA
400V
Overall
Dimension
Mounting
Dimension(Front
in Wiring)
L
W
3P/4P
H
A
B
4-φd
YTTM1-63
63
6,10,16,20,
25,32,40,50,63
AC400V
AC500V
25
18
135
78/103
81.5
25
117
φ3.5
YTTM1-125
125
10,16,20,25,32,40
50,63,80,100,125
AC690V
AC800V
35
22
150
92/122
86
30
129
φ4.5
YTTM1-250
250
100,125,140,160,
180,200,225,250
AC690V
AC800V
35
22
165
107/142
103
35
162
φ4.5
YTTM1-400
400
225,250,315,
350,400
AC690V
AC800V
50
35
257
150/198
105
44
194
φ7
YTTM1-630
630
400,500,630
AC690V
AC800V
50
35
270
82/240
110
58
200
φ7
YTTM1-800
800
630,700,800
AC690V
AC800V
75
0
0
275
210
115.5
70
243
φ7
CNKA 100 amp 4 pole ac mccb Working principle
1 The main contact of a low-voltage circuit breaker can be closed either manually or electrically. Once closed, the free release mechanism locks the main contact in the closed position. The coils of the overcurrent and thermal releases are connected in series with the main circuit, while the coil of the undervoltage release is connected in parallel with the power supply.
2 In the event of a short circuit or severe overload, the armature of the overcurrent release is activated, prompting the free release mechanism to operate and disconnect the main contact from the circuit. This function helps prevent damage to equipment and ensures the safety of personnel by protecting against overloads and short circuits. Low-voltage circuit breakers are widely used in various electrical systems and serve as a crucial protective device.
CNKA 100 amp 4 pole ac mccb Details
CNKA 100 amp 4 pole ac mccb FAQ
Q: What is the difference between MCCB and ACB?
A:CNKA MCCB is a molded case circuit breaker designed to protect electrical circuits from overcurrent due to overloads or short circuits. It has a lower current rating compared to an ACB, which is an air circuit breaker using air as the arc-quenching medium for higher current ratings.
Q: What is the disadvantage of MCCB?
A: The cost of an MCCB can be significantly higher compared to MCBs and fuses. Additionally, maintaining an MCCB can be more complex due to its insulated casing, requiring more effort in upkeep.
Hot Tags: 100 Amp 4 Pole Ac Mccb, China, Manufacturer, Supplier, Factory
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