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3BU25

Description
Circuit Breakers 25A MCB B CHARL 480Y/277VAC UL508
CategoryCircuit protection    Circuit protection   
File Size216KB,1 Pages
ManufacturerAltech
Websitehttp://www.altechcorp.com/
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3BU25 Overview

Circuit Breakers 25A MCB B CHARL 480Y/277VAC UL508

3BU25 Parametric

Parameter NameAttribute value
Reach Compliance Codeunknown
Circuit protection typeTHERMAL MAGNETIC
Base Number Matches1
V-EA-Series - UL508 Manual Motor Controller -
3 pole B-Trip
UL508 Listed
E137938
Standard Pack:
4
Weight:
0.3A - 63A
1.68kg (3.7 lb.)
UL
UL
UL
UL
UL
UL
UL
UL
UL
Seconds
Three Pole
35 mm
(1.38 in.)
91.5 mm
(3.60 in.)
Minutes
70 mm
(2.76 in.)
52.5 mm
(2.07 in.)
Rated
Current
1.0A
1.6A
2.0A
2.5A
3.0A
3.5A
4.0A
5.0A
6.0A
8.0A
10A
12A
12.5A
13A
15A
16A
20A
25A
30A
32A
40A
50A
60A
63A
Type/
Cat. No.
3BU1
3BU1.6
3BU2
3BU2.5
3BU3
3BU3.5
3BU4
3BU5
3BU6
NA
3BU10
NA
NA
3BU13
3BU15
3BU16
3BU20
3BU25
3BU30
3BU32
3BU40
3BU50
3BU60
3BU63
Approvals
UL
UL
UL
UL
UL
UL
V-EA-B Trip
1.0A Through 10A Rated Current
1.13-1.45xI
N
60
40
Minutes
10
4
1
Thermal Overload
“Must Trip” < 1 hr = 145% RC
“Must Not Trip” > 1 hr = 113% RC
UL
UL
Tripping time t
UL
10
4
1
0.4
10
-1
4x10
-2
10
-2
4x10
-3
10
-3
UL
1
2
3
4
5
6 8 10
20
40
100
Multiple of Rated Current
V-EA-B Trip
13A Through 63A Rated Current
1.13-1.45xI
N
60
40
10
4
1
Thermal Overload
“Must Trip” < 1 hr = 145% RC
“Must Not Trip” > 1 hr = 113% RC
UL
Tripping time t
For ring tongue terminal version, replace “U”
with “R” in part number. For example
1BR20
instead of
1BU20.
10
4
1
0.4
10
-1
4x10
-2
Voltage Rating
480Y/277VAC
0.3-25A: 1 pole - 42VDC; 2 Pole - 80VDC
30-60A: 1 pole - 24VDC; 2 Pole - 60VDC
0.3-60A (RC): 10kA with UL-listed
RK5 back-up fuse or MCCB
0.3-10A (RC): 10kA; 12-60A (RC): 5kA
no branch circuit protection required
0.3-63A (RC): 10kA
40°C (104°F)
Top: 18-3 AWG; Bottom: 18-2 AWG
20 lb.in.
IP20
Seconds
Short Circuit Withstand Rating
(UL/CSA - Ratings)
Group Short Circuit Withstand Rating
(UL/CSA - Ratings)
Interrupting Capacity (VDE - Ratings)
Calibration Temperature
Terminal Size Acceptability
Terminal Torque
Terminal Protection Degree
10
-2
4x10
-3
10
-3
1
2
3
4
5
6 8 10
20
40
100
Multiple of Rated Current
short circuit Withstand ratings for v-ea manual motor controller
Trip
Curve
all
all
all
all
*up to nearest rated current
Backup
Protection
Amp Range
0.3 - 10A
12 - 30/32A
40 - 50A
60 / 63A
UL-Listed
RK5-Fuse
up to 10kA
4xRC*
min 15A, max 70A
4xRC*
max 125A
4xRC*
max 200A
4xRC*
max 250A
UL-Listed
MCCB
up to 10kA
4xRC*
min 15A, max 70A
4xRC*
max 125A
4xRC*
max 200A
4xRC*
max 250A
No BCP
Required
up to:
10kA
5kA
5kA
5kA

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Reach Compliance Code unknown unknown unknown unknown unknown unknown unknown unknown unknown
Circuit protection type THERMAL MAGNETIC THERMAL MAGNETIC THERMAL MAGNETIC THERMAL MAGNETIC THERMAL MAGNETIC THERMAL MAGNETIC THERMAL MAGNETIC THERMAL MAGNETIC THERMAL MAGNETIC
Base Number Matches 1 1 1 1 1 1 1 1 1
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