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1

Thermal-magnetic Miniature Circuit Breaker 4230-T...

1638

1

Rupture capacity

to IEC/EN 60947-2 (Ics)

AC 7,500 A / DC 10,000 A

to IEC/EN 60947-2

(Icu)

AC/DC 10,000 A

to UL 489

AC/DC 10,000 A

Insulation coordination

6 kV/3 (reinforced insulation

at operating area)

Degree of protection

IP20

Vibration (sinusoidal)

test to IEC 60068-2-6,

test Fc

± 0.38 mm (10–57 Hz), 5 g

(57–500 Hz)

10 frequency cycles per axis

Shock, test to

IEC 60068-2-27, test Ea

30 g (11 ms)

Corrosion, test to IEC

60068-2-11, test Ka

96 hrs in 5% salt mist

Humidity, test to IEC

60068-2-78, test Cab

48 hours at 95% RH,

temperature +40°C

Terminals

screw terminals

Vertical connection possible

by means of busbars

Tightening torque

2 Nm max.

Cable cross section

≤35 mm²

Ambient temperature:

-35°C...+ 70°C

Mounting

rail mounting

Mass

approx. 116 g per pole (EN 60947-2/

UL 1077) approx. 131 g per pole

(UL 489)

Description

Typical applications

Technical Data

Technical Data

Single pole and multipole thermal-magnetic miniature circuit breakers

(MCBs) in accordance with EN 60947-2, UL 1077 and UL 489 for

DIN rail mounting, with toggle actuation, visual status indication and

high rupture capacity. A positively trip-free snap action mechanism

ensures reliable switching behaviour. A range of trip characteristics

and add-on modules allow a great variety of applications.

Protection of cables, motors, generators and transformers, thyristors

and silicon rectifiers. Protection of computers and their peripheral

equipment, industrial process control systems, telecommunications

equipment, power supplies.

4230-T...

UL 489 version

IEC/EN60947-2 & UL1077 version

Voltage rating and current rating range

to IEC/EN 60947-2

1-pole: AC 240 V; 1 A…63 A;

2, 3, 4-pole: AC 415 V, 1 A…63 A;

1-pole: DC 80 V, 1 A...63 A

2-pole: (2 poles connected in series)

DC 125 V, 1...63 A

to UL 1077

1-pole: AC 277 V; 1 A…63 A;

2, 3, 4-pole: AC 480Y/277 V, 1 A…63 A;

1-pole: DC 60 V; 1 A...63 A;

2-pole (2 poles connected in series):

DC 125 V; 1 A...63 A;

to UL 489

1-pole: AC 120 V; 1A…63 A;

2, 3-pole: AC 240 V, 1 A…63 A;

1-pole: AC 277 V; 1 A…32 A;

2, 3-pole: AC 480Y/277 V; 1 A…32 A;

1-pole: DC 60 V; 1 A…63 A;

2-pole (2 poles connected in series);

DC 125 V; 1 A…63 A;

Typical life

Mechanically

20,000 cycles

Electrically

6,000 cycles

to UL1077

Number of

poles

Un

In

TC

OL

SC

1-pole

AC 240 V

1...63 A

1

1

7.5 kA, U1

1-pole

AC 277 V

1...63 A

1

0

5 kA, U1

2-, 3-,

4-pole

AC 480 V

1...63 A

1

1

5 kA, U1

1-pole

DC 60 V

1...63 A

1

0

7.5 kA, U1

2-pole in

series

DC 125 V

1...63 A

1

0

7.5 kA, U1

Approvals

Approval

authority

Standard

Rated voltage

Current ratings

TÜV

IEC/EN

60947-2

AC 240/415 V

DC 80 V

DC 125 V

1...63 A

1...63 A (1-pole)

1...63 A (2 poles in

series)

UL

UL 1077 /

CSA-C22.2

No. 235

AC 480Y/277 V

DC 60 V

DC 125 V

1...63 A

1...63 A (1-pole)

1...63 A (2 poles in

series)

UL

UL 489 /

CSA-C22.2

No. 5

AC 240 V

AC 480Y/277 V

DC 60 V

DC 125 V

1...63 A

1...32 A

1...63 A (1-pole)

1...63 A (2 poles in

series)