ABB S280UC Catalog Page
System pro M
S200 Series
14
UL 1077 VDE 0660
K
CSA 22.2 No. 235
Cable and Equipment Protection
S280UC
500 VDC
Supplemental protectors
14
S281UC-K, 1 pole
S282UC-K, 2 pole
S283UC-K, 3 pole
Rated Catalog List Delivery
current number price class
qty
Sugg.
order
Wgt. oz.
(1 pc.)
1 pole
0.2 S281UC-K0.2 $ 104
0.3 S281UC-K0.3 104
0.5 S281UC-K0.5 104
0.75 S281UC-K0.75
1 S281UC-K1 104
1.6 S281UC-K1.6 104
2 S281UC-K2 104
3 S281UC-K3 104
4 S281UC-K4 104
6 S281UC-K6 104 B 10 4.6
8 S281UC-K8 104
10 S281UC-K10 104
16 S281UC-K16 104
20 S281UC-K20 104
25 S281UC-K25 108
32 S281UC-K32 110
40 S281UC-K40 116
50 S281UC-K50 136
63 S281UC-K63 152
104
2 pole
0.2 S282UC-K0.2 242
0.3 S282UC-K0.3 242
0.5 S282UC-K0.5 242
0.75 S282UC-K0.75 242
1 S282UC-K1 242
1.6 S282UC-K1.6 242
2 S282UC-K2 242
3 S282UC-K3 242
4 S282UC-K4 242 B 5 9.2
6 S282UC-K6 242
8 S282UC-K8 242
10 S282UC-K10 242
16 S282UC-K16 242
20 S282UC-K20 242
25 S282UC-K25 248
32 S282UC-K32 256
40 S282UC-K40 266
50 S282UC-K50 312
63 S282UC-K63 348
Rated Catalog List Delivery
current number price class
qty
Sugg.
order
3 pole
0.2 S283UC-K0.2 $ 370
0.3 S283UC-K0.3 370
0.5 S283UC-K0.5 370
0.75 S283UC-K0.75 370
1 S283UC-K1 370
1.6 S283UC-K1.6 370
2 S283UC-K2 370
3 S283UC-K3 370
4 S283UC-K4 370
6 S283UC-K6 370
8 S283UC-K8 370
10 S283UC-K10 370
16 S283UC-K16 370
20 S283UC-K20 370
25 S283UC-K25 382
32 S283UC-K32 408
40 S283UC-K40 448
50 S283UC-K50 472
63 S283UC-K63 534
B 3 13.9
Delivery Class
A - Standard item, stock to 2 weeks lead time
B - Stock to 4 weeks lead time
C - 6 to 8 week lead time
Wgt. oz.
(1 pc.)
Direct current applications
The S280UC differs from standard miniature circuit breakers in that the UC versions include a permanent
magnet which aids in the extinguishing of the arc during medium and high level faults. It is necessary to
observe the correct polarity and current direction when connecting the UC breakers. Two examples of correct
connection are shown below.
10,000
5000
1000
500
100
50
10
5
1
0.5
0.1
seconds
0.05
0.01
1 2 3 5 10 20 30
multiple of ratedcurrent
DC
Termination points are marked on all UC type MCBs, points one (1) and four (4) are negative and points two
(2) and three (3) are positive. Four pole breakers are also available for voltage reversal applications.
14.12 Low Voltage Products & Systems
1SXU 000 023 C0201 ABB Inc. • 888-385-1221 • www.abb-control.com
UC-K
250VDC 500VDC
Single Pole
L- L+
-1
2
+
Discount schedule CB7
Maximum voltage between leads
S281UC
LOA
D
-+
Two Pole
L- L+
S282UC
L- L+
-1
-1
+2
+2
LOAD
- +
LOAD
-+
3+
4-
3+
4-
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