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YUANKY MCB 1-63A 240/415V AC 1p 2p 3p 4P iec60898 B C D curve mini air circuit breaker

Short Description:

General

S7 is of high current limiting performance to limit the destruction energy due to short circuit to the greatest extent. Application:For protecting cables and equipments against overload and short circuit.

General rules for choosing MCB.

Technical data of the network at the point considered:

The earthing systems, short-circuit current at the circuit breaker installation point. which must always be less than the breaking capacity of this device, network normal voltage.

There are 3 curve characteristics for magnetic operation:

B curve (3-5In) protection and control of the circuits against length cables in TN and IT SYSTEMS.

C curve (5-10In) protection and control of the circuits against overloads and short-circuits; protection for resistive and inductive loads with low inrush current.

D curve (10-20In) protection and control of the circuits against overloads short-circuits; protection for circuits which supply loads with high inrush current at the circuit closing (LV/LV transformers, breakdown lamps).


Product Detail

Product Tags

Specifications

Each pole of the circuit breaker power consumption

ElectricalFeatures Standard IEC/EN 60898-1
Rated current In

A

1,2,4,6,10,16,20,25,32,40,50,63
Poles

P

1,2,3,4
Rated voltage Ue

V

AC 240/415
Insulation voltage Ui

V

500
Rated frequency

Hz

50/60
Rated breaking capacity

A

3000,4500(2~40A/6000)
Rated impulse with stand voltage(1.2/50) Uimp

V

4000
Dielectric test voltage at ind. Frqu, for 1 min

KV

2
Pollution degree 2
Thermo-magnetic release characteristic B,C,D
Electrical life

T

4000
Mechanical life

T

10000
Protection degree IP20
Reference temperature for

30
Setting of thermal element
Ambient temperature(with daily average ≤35℃)

-5~+40(Special application please refer to temperature compensation correction)
Storage temperature

-25~+70
Installation Terminal connection type Cable/Pin type busbar/U type busbar
Terminal size top/bottom for cable

mm2

25

AWG

18-3
Terminal size top/bottom for busbar

mm2

25

AWG

18-3

N*m

2

In-Ibs.

18
Mounting
Connection

S7-akb-6

Temperature derating

Please refer to table below for temperature compensation correction

RatedCurrent In(A) Temperature compensation coefficient under various operating temperature

-10℃

0℃

10℃

20℃

30℃

40℃

50℃

55℃

60℃

1-6

1.20

1.14

1.09

1.05

1.00

0.96

0.80

0.75

0.70

10-32

1.18

1.12

1.08

1.04

1.00

0.96

0.92

0.88

0.84

40-60

1.16

1.12

1.07

1.03

1.00

0.97

0.87

0.83

0.80


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