BuyLog Flippingbook FEB 2025

6-9

MOLDED CASE CIRCUIT BREAKERS, BUYLOG SECTION 6

— Formula circuit breakers for power distribution General characteristics

The FORMULA circuit breakers from 15 A to 250 A consist of the interruption component together with the trip unit and can be installed: • Directly on the back plate of cubicles • On a DIN rail

They are characterized by: • Fixed version • Polarity: 1-pole, 2-pole, 3-pole • Maximum breaking capacity of 25 kA at 240 V AC • Fixed thermal-magnetic trip unit (TMF) for protection of networks in alternating current • A single depth of 2.36" • Standard front terminals

FORMULA A1

FORMULA A2

— 1-pole

— 2-pole

— 2-pole

— 3-pole

A1

A2

Frame size

A A

100

250

Rated current, In

15–100

125–250

Poles

No.

1, 2, 3

2, 3

Rated service voltage, Ue (AC) 50–60 Hz (DC)

V

240 (1p, 2p, 3p) 125 (1p), 250 (2p,3p)

240 (2p, 3p) 250 (2p,3p)

Versions

Fixed

Fixed

Performance Level

A 1

N

A

N

Pole

No.

2, 3

1

2, 3

2, 3

2, 3

Rated ultimate short circuit breaking capacity, Icu Interrupting rating at 240 V 50–60 Hz (AC) Interrupting rating at 125 V (DC) 1-pole (in 2012) Interrupting rating at 250 V (DC) 2-pole in series (2p, 3p) (in 2012)

kA kA

10

10

18 10

25

10

25

5

–

–

–

–

kA –

5

–

10

10

25

Reference standard Isolation behavior Mounting onto DIN rail

UL 489

UL 489

Yes

Yes

DIN EN 50022

DIN EN 50022

Dimensions (width x depth x height) 1-pole

in. in. in.

1.00 x 2.36 x 5.12 2.00 x 2.36 x 5.12 3.00 x 2.36 x 5.12

–

2-pole 3-pole

2.76 x 2.36 x 5.91 4.13 x 2.36 x 5.91

Weight 1-pole

lbs. lbs. lbs.

0.54 1.04 1.54

–

2-pole 3-pole

1.61 2.43

Trip unit — Thermal-magnetic TMF

Yes

Yes