ONE POLE
ONE POLE PLUS NEUTRAL
B-TRIP
CHARACTERISTICS
Application Examples:
Business
equipment,
wiring
protection, lighting, appliances, control
circuits, some motors and some
electronic applications. Relatively long
thermal trip delay but low magnetic trip
point.
1B
2BN
Rated
Type/
Type/
Current
Cat. No.
Approvals
Cat. No.
Approvals
U
U
L
L
0.3A
0.5A
0.75A
1BU03
1BU05
1BU075
NA
2BNU03
2BNU05
2BNU075
NA
2BNU1
2BNU1.6
2BNU2
2BNU2.5
2BNU3
2BNU3.5
2BNU4
2BNU5
2BNU6
NA
Type Designation
U
U
L
L
U
U
L
L
2
B
N
U
60
—
—
—
—
—
❶
0.8A
(a) (b) (c) (d) (e)
U
U
L
L
1.0A
1.6A
2.0A
2.5A
3.0A
3.5A
4.0A
5.0A
6.0A
8.0A
10A
1BU1
1BU1.6
1BU2
1BU2.5
1BU3
1BU3.5
1BU4
1BU5
1BU6
NA
U
U
L
L
(a) = Number of Poles
U
U
L
L
(b) = Trip Characteristic
(c) = Blank: without neutral pole
U
U
L
L
U
U
L
L
U
U
L
L
= N:
(d) = U:
= R:
with neutral pole
UL/CSA version
ring tongue terminals,
UL/CSA version
U
U
L
L
U
U
L
L
U
U
L
L
U
U
2BNU10
L
= Blank: European version
L
1BU10
NA
NA
NA
❶
(e) = Rated Current
12A
NA
12.5A
13A
U
U
L
L
2BNU13
2BNU15
2BNU16
2BNU20
2BNU25
2BNU30
2BNU32
2BNU40
2BNU50
2BNU60
2BN63
1BU13
1BU15
1BU16
1BU20
1BU25
1BU30
1BU32
1BU40
1BU50
1BU60
1B63
U
U
L
❶
L
15A
U
U
L
L
16A
20A
25A
U
U
L
L
U
U
L
L
U
U
L
❶
L
30A
Approvals:
U
U
L
L
32A
40A
50A
60A
63A
U
U
L
L
U
U
L
L
❶
UL508 Listed
VDE pending
U
L
U
L
❶
277VAC
277VAC
Voltage Rating
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
Interrupting Capacity
(UL/CSA - Ratings)
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
Group Short Circuit
(UL/CSA - Ratings)
0.3-63A (RC): 10kA
0.3-63A (RC): 10kA
Interrupting Capacity (VDE - Ratings)
❶
❶
10000 ON/OFF operations
10000 ON/OFF operations
Mechanical Endurance
Calibration Temperature
Standard Pack and Weight
40°C (104°F)
40°C (104°F)
10/0.3A - 32A = 1.4kg (3.1 lb.)
40A - 63A = 1.6kg (3.5 lb.)
5/0.3A - 32A = 1.3kg (2.9 lb.)
40A - 63A = 1.45kg (3.2 lb.)
Terminal Size Acceptability
Terminal Torque
Top: 18-3 AWG; Bottom: 18-2 AWG
20 lb.in.
Top: 18-3 AWG; Bottom: 18-2 AWG
20 lb.in.
Basic Dimensions (Elevation View)
❶
Not European standard rating.
91.5 mm
(3.60 in.)
91.5 mm
(3.60 in.)
❶
Please refer to page 21 for specific
applications.
DC rating (Manufacturer’s self certification):
❶
One pole 48VDC, two pole series 125VDC
17.5 mm (0.69 in.)
35 mm (1.38 in.)
Altech Corp.® • 35 Royal Road • Flemington, NJ 08822-6000 • Phone (908)806-9400 • FAX (908)806-9490 • www.altechcorp.com
8