SCREW & SNAP-IN
MOUNTING
INTRODUCTIONS
1. Designed to meet globally accepted IEC publication 320 Class
1, that allows users to comply with industry standards in power
entry requirement.
2. Connector for cold condition, with pin temperature 70
o
C max.
3. Nickel-plated brass pins and soldering terminals.
4. Screw-on mount from front or rear (with screw type-M3).
5. Power module incorporates an IEC connector, double fuse
holder, voltage selector, double-pole power switch, all-in-one
easy-to-install unit.
6. Double-fuse holder designed for two fuses, single fuse & dual
fuse capability are both available (all 5x20mm fuses).
7. Adapts to 110-120V or 220-240V input voltage simply by
reversing the voltage selector card.
8. Compact design and high volume production provide maximum
flexibility and significant savings in space and cost over
assembly of individual components.
9. All part numbers are UL, CSA and SEMKO approved.
10. SK-1027/SK-1028 with a variety of built-in filter are also
available, see Delta EMI filter catalog for SB/NB series.
SPECIFICATIONS
1. Rated voltage: 250VAC
2. Minimum insulation resistance at 500VDC: 10M OHM
3. Dielectric strength (one minute): 2000VAC between pins
4. Flammability class: UL 94V-0
ELECTRICAL SCHEMATIC
F
L
L
I
N
E
N
G
L
O
A
D
N
SW
L
1
2
3
4
110V ~120V
110V ~120V
FIG. A
Customer
transformer
primaries
F
L
L
I
N
E
N
G
SW
L
L
O
A
D
N
1
2
3
4
110V ~120V
110V ~120V
FIG. B
TYPE & RATED CURRENT
DELTA PARTNUMBER
RATED CURRENT
(AT 250VAC)
CONNECTOR TYPE
FUSE HOLDER
POWER SWITCH
VOLTAGE SELECTOR
ELECTRICAL SCHEMATIC
MOUNTING TYPE
UL/CSA
SEMKO
MALE
FEMALE
S
DP*1
FRONT*2
FIG. B
D
DP*1
FRONT*2
FIG. A
D
DP*1
FRONT*2
FIG. A
S
DP*1
FRONT*2
FIG. B
SK-1027
10A
6A
10A
6A
SK-1028
10A
6A
10A
6A
REMARKS:
*1. DOUBLE-POLE POWER SWITCH
UL, CSA AND VDE APPROVED AT 10A/250VAC
ELECTRICAL LIFETIME: 10,000 CYCLE
MAXIMUM IN-RUSH CURRENT: 51A
*2. VOLTAGE SELECTOR CARD RATING
UL/CSA-10A/250VAC
VDE-6A/250VAC
Customer
transformer
primaries
SCREW
SNAP-IN
MECHANICAL CONSTRUCTION
0.197
50.0
1.575 0.002
40.00 0.5
1.102
28.0
0.157
4.0
0.08
2.0
1.811
46.0
1.260
32.0
1.102
28.0
0.157
4.0
1.811
46.0
2.283
58.0
2.126
54.0
2.283
58.0
2.126
54.0
USE ONLY WITH 250V
FUSE/EMPLOYER
UNIQUEMENT AVEC
DES FUSIBLES DE 250V
USE ONLY WITH 250V
FUSE/EMPLOYER
UNIQUEMENT AVEC
DES FUSIBLES DE 250V
110 - 120V
110 - 120V
1.575 0.04
40.01 0.1
+0.008
-
1.1220
+0.2
-
28.50
0.118
3.0
0.08
2.0
R0.08(4X)
R2.0(4X)
+0.008
-
1.1220
+0.2
-
28.50
2.165
55.0
0.118
3.0
2.165
55.0
+0.008
2.2-0
+0.2
55.9-0
+0.008
L -0
M3 (2X)
SK-1027
SK1027
SK1028
SUGGESTED MOUNTING CUTOUT
(MOUNTING FROM FRONT)
SK-1028
SUGGESTED MOUNTING CUTOUT
(MOUNTING FROM FRONT)
L according to panel thinkness:
0.032~0.079INCH L=2.200/0.8~2.0mm L=55.9
0.08~0.126INCH L=2.213/2.1~3.2mm L=56.2
+0.2
L -0
UNIT:
INCH
mm
9-8
POWER ENTRY MODULES
220 -240V
220 -240V
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