NB1 Series - Datasheet - Chint Minature Circuit Breakers

NB1 Series - Datasheet - Chint Minature Circuit Breakers

Circuit Breakers
70
www. factorymation. com
MINIATURE CIRCUIT BREAKERS
B&B now
ow offers CHINT high-quality Miniature C ircuit
B reakers to fit your s upplementary protection needs.
T he NB 1 S eries of MC B s are UL1077 recognized
and can be trus ted to provide overcurrent protection for
your automation control devices and components.
T he NB 1 MC B features include:
•
•
•
•
•
•
UL 1077, CSA, VDE, CE
Current ratings up to 63A
Maximum 480VAC (multi-pole), 277VAC (single-pole)
DC Voltage ratings for B-curve models
B trip curves models available for general use and DC applications
D trip curve models available for high starting current applications such
as motor starting
• 5000 A Interrupt Rating
• DIN rail mount chassis
• Captive terminal screws won’t fall out
F ile: E 218757
V a lid C u rre n t R a tin g s
C = C u rve : “B ” o r “D ”
1 -4
6
10
16
20
N B1
C
AA
25
32
40
50
63
A A = 2 D ig it A m p e ra g e
-
P = P o le s: “ 1 ”, “2 ” o r “ 3 ”
-
#
P
Example Part Number:
NB1-B10-2P
General Specifications
A gency A pprovals
UL 1077, C S A; S tandard: IE C 60898, C V, E S C , F IMKO, K E MA,
S E MKO, V DE , UK R E S T, P C T, R C C
Maximum Voltage
S ingle pole: 277VAC , 110V DC (DC Voltage for B curve only);
Multi-pole: 480VAC , 125V DC (DC Voltage for B curve only)
Maximum Interupt R ating
L ifes pan
S witching R ate
A mbient Temperature
Degree of protec tion
Max Power C ons umption
5k VAC , 10k V DC (DC Voltage for B curve only)
Terminal C apac ity
1.0 to 16mm (17 to 6 AWG )
T ightening Torque
2.0 N.m
Mechanical: 10,000 operations ; E lectrical (Ie max.): 4000 operations
Mechanical: 240 ops /hr; E lectrical: 240 ops /hr (1-32A), 120 ops /hr (40-63A)
Operating: -5 to +40°C (23 to +104°F )
IP 20
2W (1-10A), 3.5W (16-32A), 5W (40-63A)
2
International Headquarters: 815-433-5100 Fax 433-5104 www.bb-elec.com
European Headquarters: +353 91 792444 Fax +353 91 792445 www.bb-europe.com
Circuit Breakers
1. 800. 972. 0436
NB1 Dimensions
45 (1.77”)
36
(1.4 2”)
35 (1.38”)
86 (3.39”)
18
(0.71 ”)
49.5 (1.95 ”)
54
(2.1 3”)
77 (3.03”)
NB1 Characteristic Curves
I2t
10
AC operation B curve
63A
50A
32A 40A
25A
20A
16A
10A
5
5
10
6A
4
4A
3A
5
2
2
Let- th ro u g h I t/AS
2A
10
3
1A
10 2
5
10 3
5
Sho rt-ci rcut curr ent ip/A
10000
5000
1h
2000
1000
500
200
100
50
20
10
5
t(s) 2
1
0.5
0.2
0.1
0.05
0.02
0.01
0.005
0.002
0.001
10 4
0.5
1
Temperature
C ompens ation C oeffic ient
0.5 1
I/In
DC operation B curve
AC operation D curve
10 00 0
50 00
1h
20 00
10 00
50 0
20 0
10 0
50
20
10
5
t(s) 2
1
0.5
0.2
0.1
0.05
0.02
0.01
0.00 5
0.00 2
0.00 1
2 3 4 5 7 10 20 30 5070100 200
2 3 4 5 7 1014 20 30 50 7010 020 0 I/In
-10°C
0°C
10°C
20°C
30°C
40°C
50°C
55°C
60°C
1.20
1.15
1.10
1.05
1.00
0.95
0.90
0.875
0.85
10 00 0
50 00
1h
20 00
10 00
50 0
20 0
10 0
50
20
10
5
t(s) 2
1
0.5
0.2
0.1
0.05
0.02
0.01
0.00 5
0.00 2
0.00 1
0.5 1
2 3 4 5 7 1014 20 30 50 7010 020 0 I/In
International Headquarters: 815-433-5100 Fax 433-5104 www.bb-elec.com
European Headquarters: +353 91 792444 Fax +353 91 792445 www.bb-europe.com
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