WEG Electric UMBW-UL489, UMBW-UL1077 Data Sheet

Circuit Protection

UL Approval

Number of Poles Current Rating

UMBW-UL489 and UL1077 Listed

Introducing the New WEG UMBW Series Thermal-Magnetic
Miniature Circuit Breakers. This new offering includes both
UL489 and UL1077 approvals to provide a solution for circuit &
equipment protection in Industrial Electrical equipment. The
UMBW has a range from 1 to 63Amps, available in 1,2, 3 poles,
and B, C, D trip curves.

Standard Features

• AC & DC voltages available in one Series

• UL489 Branch Circuit protective device

• UL1077 Equipment protection

• 17.5mm width per pole

• Visual status indication

• Positive trip-free snap action mechanism to ensure

reliable switching

• Cuttable Bus Bar connecting system

UMBW Catalog Number Sequence

UMBW -1

-1= UL1077

-4= UL489

B 1 -1

B= 4xIn (+/-20% ) Magnetic Trip Current
C= 8xIn (+/-20% ) Magnetic Trip Current
D= 12xIn (+/-20% ) Magnetic Trip Current

1,2,3

Trip Curve

UL1077-1 to 63

UL489-1 to 63

Table inte nded as ref eren ce onl y and no t to cre ate pa rt nu mber s.

Circuit Protection

UL1077

# Poles Ampacity

1 UMBW-1B1-1 UMBW-1C1-1 UMBW-1D1-1

1.5 UMBW-1B1-1.5

2 UMBW-1B1-2 UMBW-1C1-2 UMBW-1D1-2

3 UMBW-1B1-3 UMBW-1C1-3 UMBW-1D1-3

4 UMBW-1B1-4 UMBW-1C1-4 UMBW-1D1-4

5 UMBW-1B1-5 UMBW-1C1-5 UMBW-1D1-5

6 UMBW-1B1-6 UMBW-1C1-6 UMBW-1D1-6

1 POLE

7 UMBW-1B1-7

8 UMBW-1B1-8

10 UMBW-1B1-10 UMBW-1C1-10 UMBW-1D1-10

12 UMBW-1B1-12 UMBW-1C1-12 UMBW-1D1-12

13 UMBW-1B1-13

15 UMBW-1B1-15 UMBW-1C1-15 UMBW-1D1-15

16 UMBW-1B1-16 UMBW-1C1-16 UMBW-1D1-16

20 UMBW-1B1-20 UMBW-1C1-20 UMBW-1D1-20

25 UMBW-1B1-25 UMBW-1C1-25 UMBW-1D1-25

30 UMBW-1B1-30

32 UMBW-1B1-32 UMBW-1C1-32 UMBW-1D1-32

35 UMBW-1B1-35

40 UMBW-1B1-40 UMBW-1C1-40 UMBW-1D1-40

50 UMBW-1B1-50 UMBW-1C1-50 UMBW-1D1-50

60 UMBW-1B1-60

63 UMBW-1B1-63 UMBW-1C1-63 UMBW-1D1-63

1 UMBW-1B2-1 UMBW-1C2-1 UMBW-1D2-1

1.5 UMBW-1B2-1.5

2 UMBW-1B2-2 UMBW-1C2-2 UMBW-1D2-2

3 UMBW-1B2-3 UMBW-1C2-3 UMBW-1D2-3

4 UMBW-1B2-4 UMBW-1C2-4 UMBW-1D2-4

2 POLE

5 UMBW-1B2-5 UMBW-1C2-5 UMBW-1D2-5

6 UMBW-1B2-6 UMBW-1C2-6 UMBW-1D2-6

7 UMBW-1B2-7

8 UMBW-1B2-8

10 UMBW-1B2-10 UMBW-1C2-10 UMBW-1D2-10

12 UMBW-1B2-12 UMBW-1C2-12 UMBW-1D2-12

13 UMBW-1B2-13

15 UMBW-1B2-15

16 UMBW-1B2-16 UMBW-1C2-16 UMBW-1D2-16

20 UMBW-1B2-20 UMBW-1C2-20 UMBW-1D2-20

25 UMBW-1B2-25 UMBW-1C2-25 UMBW-1D2-25

30 UMBW-1B2-30

32 UMBW-1B2-32 UMBW-1C2-32 UMBW-1D2-32

35 UMBW-1B2-35

40 UMBW-1B2-40 UMBW-1C2-40 UMBW-1D2-40

50 UMBW-1B2-50 UMBW-1C2-50 UMBW-1D2-50

60 UMBW-1B2-60

63 UMBW-1B2-63 UMBW-1C2-63 UMBW-1D2-63

1) Non-stocked. Contact WEG for availability.

B CURVE C CURVE D CURVE

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

Catalog Number

UMBW-1C1-1.5

UMBW-1C1-7

UMBW-1C1-8

UMBW-1C1-13

UMBW-1C1-30

UMBW-1C1-35

UMBW-1C1-60

UMBW-1C2-1.5

UMBW-1C2-7

UMBW-1C2-8

UMBW-1C2-13

UMBW-1C2-15

UMBW-1C2-30

UMBW-1C2-35

UMBW-1C2-60

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

UMBW-1D1-1.5

UMBW-1D1-7

UMBW-1D1-8

UMBW-1D1-13

UMBW-1D1-30

UMBW-1D1-35

UMBW-1D1-60

UMBW-1D2-1.5

UMBW-1D2-7

UMBW-1D2-8

UMBW-1D2-13

UMBW-1D2-15

UMBW-1D2-30

UMBW-1D2-35

UMBW-1D2-60

Max Voltage Multiplier

1

1

1

1

1

1

1

1

1

1

1

1

1

1

277 VAC Z12

1

277/480 VAC Z12

UMBW

Circuit Protection

UMBW

UL1077

# Poles Ampacity

B CURVE C CURVE D CURVE

1 UMBW-1B3-1 UMBW-1C3-1 UMBW-1D3-1

1.5 UMBW-1B3-1.5

2 UMBW-1B3-2 UMBW-1C3-2 UMBW-1D3-2

3 UMBW-1B3-3

4 UMBW-1B3-4 UMBW-1C3-4 UMBW-1D3-4

5 UMBW-1B3-5

6 UMBW-1B3-6 UMBW-1C3-6 UMBW-1D3-6

3 POLE

7 UMBW-1B3-7

8 UMBW-1B3-8

10 UMBW-1B3-10 UMBW-1C3-10 UMBW-1D3-10

12 UMBW-1B3-12

13 UMBW-1B3-13

15 UMBW-1B3-15

16 UMBW-1B3-16 UMBW-1C3-16 UMBW-1D3-16

20 UMBW-1B3-20 UMBW-1C3-20 UMBW-1D3-20

25 UMBW-1B3-25 UMBW-1C3-25 UMBW-1D3-25

30 UMBW-1B3-30

32 UMBW-1B3-32 UMBW-1C3-32 UMBW-1D3-32

35 UMBW-1B3-35

40 UMBW-1B3-40 UMBW-1C3-40 UMBW-1D3-40

50 UMBW-1B3-50 UMBW-1C3-50 UMBW-1D3-50

60 UMBW-1B3-60

63 UMBW-1B3-63 UMBW-1C3-63 UMBW-1D3-63

1) Non-stocked. Contact WEG for availability.

1

1

1

1

1

1

1

1

1

1

1

Catalog Number

UMBW-1C3-1.5

UMBW-1C3-3

UMBW-1C3-5

UMBW-1C3-7

UMBW-1C3-8

UMBW-1C3-12

UMBW-1C3-13

UMBW-1C3-15

UMBW-1C3-30

UMBW-1C3-35

UMBW-1C3-60

1

1

1

1

1

1

1

1

1

1

1

UMBW-1D3-1.5

UMBW-1D3-3

UMBW-1D3-5

UMBW-1D3-7

UMBW-1D3-8

UMBW-1D3-12

UMBW-1D3-13

UMBW-1D3-15

UMBW-1D3-30

UMBW-1D3-35

UMBW-1D3-60

Max Voltage Multiplier

1

1

1

1

1

1

1

277/480 VAC Z12

1

1

1

1