INTERRUPTING CAPACITY RATINGS
UL489 Interrupting Capacity Ratings
IEC 157-1 Interrupting Capacity Ratings (P1)
Circuit
Breaker
Type
ED
EDH
EDC
EHD
FDB
FD
HFD
FDC
HFDDC
Circuit
Breaker
Type
ED
EDH
EDC
FDB
FD
HFD
FDC
2-pole circuit breaker, or two poles of 3-pole circuit breaker.
Time constant is 3 milliseconds minimum at 10 kA and 8 milliseconds minimum at 22 kA.
HFDDC is UL only and is not tested to other standards.
Interrupting rating is 35,000 amps at 600-volt Dc with 3 poles in series, for ungrounded systems only.
Dc ratings apply to substantially non-inductive circuits.
Number
of
Poles
2, 3
2, 3
2, 3
1
2, 3
2, 3, 4
1
2, 3, 4
1
2, 3, 4
2, 3, 4
3
Number
of
Poles
2, 3
2, 3
2, 3
2, 3, 4
1
2, 3, 4
1
2, 3, 4
2, 3, 4
100,000
200,000
100,000
200,000
100,000
200,000
100,000
200,000
240
Interrupting Capacity (Symmetrical Amperes)
Volts Ac (50/60 Hz)
Interrupting Capacity (Symmetrical Amperes)
Volts Ac (50/60 Hz)
220, 240
. . . . . .
. . . . . .
. . . . . .
. . . . . .
65,000
18,000
18,000
65,000
65,000
18,000
25,000
65,000
65,000
100,000
. . . . . .
. . . . . .
. . . . . .
. . . . . .
. . . . . .
. . . . . .
. . . . . .
. . . . . .
. . . . . .
. . . . . .
. . . . . .
. . . . . .
. . . . . .
277
14,000
25,000
65,000
380, 415
. . . . . .
14,000
35,000
65,000
Dimensions, Inches (mm)
Approximate Shipping Weight, Lbs. (kg)
No. of Poles
1
2
3
4
Breaker
Type
ED, EDH,
EDC
EHD, FDB,
FD, HFD
FDC
HFDDC
100,000
100,000
480
440
. . . . . .
. . . . . .
. . . . . .
. . . . . .
. . . . . .
. . . . . .
. . . . . .
14,000
14,000
25,000
65,000
. . . . . .
. . . . . .
. . . . . .
14,000
. . . . . .
35,000
. . . . . .
65,000
Number of Poles
1
—
2
(.907)
—
—
Width
1.375 (35)
2.75 (70)
4.125 (105) 6 (152)
5.5 (140)
600
500
. . . . . .
. . . . . .
. . . . . .
. . . . . .
. . . . . .
. . . . . .
. . . . . .
. . . . . .
. . . . . .
. . . . . .
. . . . . .
. . . . . .
. . . . . .
14,000
18,000
25,000
35,000
14,000
18,000
25,000
35,000
2
3
(1.361)
3
(1.361)
3.25
(1.474)
—
Height
6 (152)
6 (152)
6 (152)
Volts Dc
Volts Dc
125
10,000
10,000
10,000
10,000
. . . . . .
. . . . . .
10,000
. . . . . .
10,000
. . . . . .
. . . . . .
. . . . . .
125
10,000
10,000
10,000
. . . . . .
10,000
. . . . . .
10,000
. . . . . .
. . . . . .
3
4.5
(2.041)
4.5
(2.041)
4.75
(2.155)
4.5
(2.041)
Depth
3.375 (86)
3.375 (86)
3.375 (86)
3.375 (86)
4
—
6
(2.721)
6.35
(2.880)
—
250
. . . . . .
. . . . . .
. . . . . .
. . . . . .
10,000
10,000
. . . . . .
10,000
. . . . . .
22,000
22,000
42,000
. . . . . .
. . . . . .
. . . . . .
. . . . . .
. . . . . .
22,000
22,000
10,000
10,000
250
Series C
Molded Case
Circuit Breakers
F-Frame
10-225 Amperes
STANDARDS
Series C molded case circuit breakers are
designed to conform with the following
standards:
Conformance with these standards satisfies
most local and international codes, assum-
ing user acceptability and simplified appli-
cation.
Series C molded case circuit breakers equal
or exceed Federal Specification Classifica-
tion W-C-375b requirements for the particu-
lar class associated with the circuit breaker
frame being considered.
Australian Standard AS 2184, Molded
Case Circuit Breakers
British Standards Institution Standard BS
4752: Part 1, Switchgear and Control
Gear Part 1: Circuit Breakers
Canadian Standards Association
Standard C22.2 No. 5, Service Entrance
and Branch Circuit Breakers
International Electrotechnical Commis-
sion Recommendations IEC 157-1, Circuit
Breakers
Japanese T-Mark Standard Molded Case
Circuit Breakers
National Electrical Manufacturers
Association Standards Publication No.
AB1-1993, Molded Case Circuit Breakers
South African Bureau of Standards,
Standard SABS 156, Standard Specifica-
tion for Molded Case Circuit Breakers
Swiss Electro-Technical Association
Standard SEV 157-1, Safety Regulations
for Circuit Breakers
Underwriters Laboratories, Inc., Stan-
dard UL 489, Molded Case Circuit
Breakers and Circuit Breaker Enclosures,
including Marine Circuit Breakers File
E7819
Union Technique de l’Electricite Stan-
dard NF C 63-120, Low Voltage
Switchgear and Control Gear Circuit
Breaker Requirements
Verband Deutscher Elektrotechnike
(Association of German Electrical Engi-
neers) Standard VDE 0660, Low Voltage
Switchgear and Control Gear, Circuit
Breakers
®
Selection Data
29-120F
Page 1