BW250RAM datasheet(26/93 Pages) FUJI

26 / 93 page

Fuji Electric FA Components & Systems Co., Ltd./D & C Catalog

Information subject to change without notice

06/26

Terminal position

Applicable breaker type

Code

Blank

Line

Screw

Flat teminal

Block terminal

Flat teminal

Screw

Flat teminal

Screw

Block terminal

Flat teminal

Block terminal

Load

Screw

Flat teminal

Block terminal

Flat teminal

Flat terminal

Screw

Block terminal

Screw

Block terminal

Flat terminal

BW100, 125, 250

–

BW50

–

BW400, 630, 800

–

Molded Case Circuit Breakers

G-TWIN series

Wire size and terminal

Notes on wiring (global series)

Notes on connecting wires (conductors)

• Connect wires to the UL breaker according to NEC (National

Electric Code) or CEC (Canadian Electrical Code) Part 1.

• Use 75°C copper wires for wiring. UL-certified or CSA-

certified wires are recommended.

• If a large current (for example, a short-circuit current)

flows, it causes a huge electromagnetic force between wires.

Therefore, be sure to secure the wires sufficiently.

• Re-tighten terminal screws periodically.

Block terminal connection

• Choose from the stranded wires shown in Table.

Wire size: AWG or MCM [mm2]

No. of wires stranded

14 to 2 [2.1 to 33.6]

1 to 4/0 [42.4 to 107.2]

250 to 500 [127 to 250]

Values in [ ] are those converted from AWG or MCM sizes to mm2.

* See the instruction manual that comes with the breaker for

more details.

Precautions

• Two wires of different sizes cannot be connected to the

same block terminal.

• Be sure to use stranded wires according to Table "Number

of wires stranded."

• Multi-conductor wires cannot be connected.

• Do not solder wires together.

Wire size and crimp terminal

• Crimp terminal connection

MCCB

Rated

current

(A)

Applicable crimp terminal

75˚C wire

Connectable wire

size (AWG)

Tightening

torque

(N•m)

Type of

screw head

and size

(mm)

J.S.T Mfg. Co., Ltd.

Nichifu Co., Ltd.

Daido Solderless Terminal

Mfg. Co., Ltd.

75˚C wire

BW50RAGU

R2-5

R2-5M

R2-5

2-S5, 2-5

14AWG

2.3-2.8

Cross/straight slotted

pan-head screw

M5 x 14

R5.5-5

R3.5-5S, R3.5-5L, 5.5-6N,

R5.5-5S, R5.5-5

3.5-5, 5.5-S5,

5.5-5, 5.5-L5

12AWG

10AWG

R8-5

R8-5S, R8-5

8-S5, 8-5

8AWG

BW100EAGU

R14-8

R14-8S, R14-8

R14-S8, R14-8

6AWG

5.5-7.5

Cross/straight slotted

pan-head screw

M8 x 15

22-S8

R22-8S, R22-8

R22-S8, 22-8

4AWG

100

38-S8

R38-8S

38-S8

3AWG

BW125JAGU

BW125RAGU

R2-8

2-8, 2-B8

14AWG

5.8

(5.3-6.4)

Cross/straight slotted

pan-head screw

M8 x 16

5.5-S8, R5.5-8

R3.5-8, R5.5-8

3.5-8, 5.5-8

12AWG

R5.5-8

5.5-8

10AWG

8-8NS, R8-8

R8-8

8-8

8AWG

14-8NS, 14-S8, R14-8

R14-8S, R14-8

14-S8, 14-8

6AWG

22-S8, R22-8, CB22-S8 R22-8S, R22-8, CB22-8S 22-S8, 22-8, CB22-8

4AWG

38-S8

R38-8S

38-S8

3AWG

100

125

1AWG

BW250EAGU

BW250JAGU

BW250RAGU

125

38-S8, R38-8

R38-8S, R38-8

38-S8, 38-8

1AWG

10.5

(8-13)

Hexagon socket

head bolt

M8 x 16

150

60-S8, R60-8

R60-8, CB60-8, CB60-8S 60-8, CB60-8

1/0AWG

175

70-8

R70-8

70-8

2/0AWG

200

CB80-S8

CB80-8

3/0AWG

225

CB100-S8

CB100-8

4/0AWG

250

CB150-S8

CB150-8

250MCM

Notes: • AWG/MCM is the UL approved wire unit.

• The allowable temperature of wire is 75˚C. (UL CSA approved)

• Be sure to use UL-certified or CSA-certified crimp tools commercially available.

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