TWO POLE
THREE POLE
Basic Dimensions (side view)
35 mm
(1.38 in.)
3B
2B
Type/
70 mm (2.76 in.)
Rated
Type/
Current
Cat. No.
Approvals
Cat. No.
Approvals
V-EA-B Trip
0.3A Through 10A Rated Current
U
U
L
1.13-1.45xIN
L
3BU03
3BU05
3BU075
NA
0.3A
0.5A
0.75A
2BU03
2BU05
2BU075
NA
60
40
U
U
L
L
U
U
L
L
10
❶
0.8A
Thermal Overload
“Must Trip” < 1 hr = 145% RC
4
U
U
L
3BU1
3BU1.6
3BU2
3BU2.5
3BU3
3BU3.5
3BU4
3BU5
3BU6
NA
L
1.0A
1.6A
2.0A
2.5A
3.0A
3.5A
4.0A
5.0A
6.0A
8.0A
10A
2BU1
2BU1.6
2BU2
2BU2.5
2BU3
2BU3.5
2BU4
2BU5
2BU6
NA
“Must Not Trip” > 1 hr = 113% RC
U
U
L
1
L
U
U
L
L
10
4
U
U
L
L
U
U
L
L
U
U
L
L
1
U
U
L
L
0.4
U
U
L
L
U
10-1
U
L
L
4x10-2
U
U
L
L
3BU10
10-2
2BU10
NA
NA
NA
NA
4x10-3
❶
12A
12.5A
13A
10-3
U
U
L
1
2
3
4
5 6 8 10
20
40
100
3BU13
3BU15
3BU16
3BU20
3BU25
3BU30
3BU32
3BU40
3BU50
3BU60
3B63
L
2BU13
2BU15
2BU16
2BU20
2BU25
2BU30
2BU32
2BU40
2BU50
2BU60
2B63
U
U
L
Multiple of Rated Current
❶
L
15A
U
U
L
L
16A
20A
25A
V-EA-B Trip
U
U
L
L
13A Through 63A Rated Current
U
U
L
L
1.13-1.45xIN
U
60
40
U
❶
L
L
30A
U
U
L
L
32A
40A
50A
10
U
U
L
L
Thermal Overload
“Must Trip” < 1 hr = 145% RC
“Must Not Trip” > 1 hr = 113% RC
4
U
U
L
L
❶
U
60A
U
L
1
L
63A
10
4
480Y/277VAC
480Y/277VAC
0.3-60A (RC): 10kA with UL-listed
RK5 back-up fuse or MCCB
0.3-60A (RC): 10kA with UL-listed
RK5 back-up fuse or MCCB
1
0.4
10-1
0.3-10A (RC): 10kA; 13-60A (RC): 5kA
no branch circuit protection required
0.3-10A (RC): 10kA; 13-60A (RC): 5kA
no branch circuit protection required
4x10-2
0.3-63A (RC): 10kA
0.3-63A (RC): 10kA
10-2
4x10-3
❶
❶
10000 ON/OFF operations
10000 ON/OFF operations
10-3
40°C (104°F)
40°C (104°F)
1
2
3
4
5 6 8 10
20
40
100
5/1.4kg (3.1 lb.)
4/1.68kg (3.7 lb.)
Multiple of Rated Current
“B” Magnetic Trip Parameters
Rated current 0.3A to 63A.
Top: 18-3 AWG; Bottom: 18-2 AWG
20 lb.in.
Top: 18-3 AWG; Bottom: 18-2 AWG
20 lb.in.
1. Hold for a minimum of 100ms at surge
of 3 times rated current.
2. Trip in under 100ms at 5 times rated
current.
91.5 mm
(3.60 in.)
91.5 mm
(3.60 in.)
NB: Trip curves shown comply with North
American standards. For trip curves
according to European standards please
consult Altech.
35 mm (1.38 in.)
52.5 mm (2.07 in.)
Altech Corp.® • 35 Royal Road • Flemington, NJ 08822-6000 • Phone (908)806-9400 • FAX (908)806-9490 • www.altechcorp.com
9
ALTECH [ ALTECH CORPORATION ]
