V-EA MINIATURE CIRCUIT BREAKER/MANUAL MOTOR CONTROLLER
TRIP CURVE SELECTION GUIDE
Warning!
This information should only be used as a selection guide. The use of a Miniature Circuit Breaker/Manual Motor Controller
in an application with a certain Trip-Characteristic always requires prototype testing! It is the responsibility of the circuit
design engineer to select the appropriate Miniature Circuit Breaker/Manual Motor Controller for his specific application.
Trip-Characteristics*
Applications
Characteristic Trip Boundaries
Lighting
Wiring
Protection Equipment
Business
Appliances
Control Transformers
Circuits
Power
Supplies
Thermal Trip
Magnetic Trip
Must not
Trip>100ms
Must Trip
<1hr
Must not
Trip>100ms at 100ms
Must Trip
B-Characteristics
1.45xRC 3xRC
C-Characteristics
1.45xRC 5xRC
D-Characteristics
1.45xRC 10xRC
E-Characteristics
1.35xRC 14xRC
G-Characteristics
1.35xRC 8xRC
Z-Characteristics
1.35xRC 2xRC
Pages
8-9
Pages
8-9
Pages
8-9
Pages
8-9
Pages
8-9
1.13xRC
1.13xRC
5xRC
Pages
10-11
Pages
10-11
Pages
10-11
Pages
10-11
Pages
10-11
10xRC
Pages
12-13
Pages
12-13
1.13xRC
1.05xRC
16xRC
18xRC
Pages
16-17
Pages
16-17
Pages
16-17
Pages
16-17
1.05xRC
1.05xRC
10xRC
3xRC
*The value of each characteristic is shown vertically beneath its corresponding heading.
TIME VERSUS CURRENT TRIP CURVE
60
40
10
4
1
10
4
For the exact trip curve, please refer
to appropriate catalog pages.
1
0.4
Z
B
CG D E
-1
-2
10
4x10
-2
-3
10
4x10
-3
10
2
3
4
6 8 101620
Multiple of Rated Current
Altech Corp.® • 35 Royal Road • Flemington, NJ 08822-6000 • Phone (908)806-9400 • FAX (908)806-9490 • www.altechcorp.com
6
ALTECH [ ALTECH CORPORATION ]
