C L A S S
SQUARE BASE RELAYS WITH MAGNETIC BLOWOUT
388B & A283
Recognized Component mark for
COMPLIES WITH
Canada and the United States.
CLASS 388B & 388DB
SQUARE BASE PLUG-IN STYLE
WITH MAGNETIC BLOWOUT FOR
DC SWITCHING.
REQUIREMENTS OF
IEC STANDARDS
947-4-1 AND 947-5-1
LOW VOLTAGE DIRECTIVE
*
*
C
US
UL Recognized
File No. E43641
& E13224
IEC = INTERNATIONAL
ELECTROTECHNICAL COMMISSION
RATED 3 & 10 AMPS AT 150 VDC
TOP FLANGE COVER AVAILABLE ON
SPECIAL ORDER. CONSULT FACTORY
OUTLINE DIMENSIONS
Dimensions shown are in "INCHES" and (Millimeters)
MANUFACTURED UNDER
QUALITY SYSTEM
ISO 9002 & QS 9000
1.53 Max.
(38.8)
.187 x .020
(4.76 x 0.51)
QC Terminals Typical
1.90Max.
(48.4)
3
6
1
4
2
5
1.40Max.
(35.5)
9
7
8
B
A
.28 Typ.
(7.1)
The Class 388B/388DB style relays have the same load
specifications as the 388/283 enclosed plug-in style relays
plus the additional load ratings charted on this page.
See 388& A283 General specifications.
WIRING DIAGRAM
Viewed from terminal end
1
4
3
6
DC LOAD RATINGS
6
4
DPDT FIG. "A"
150VDC
SPDT-N.O. -DM FIG. "B"
150VDC
RESISTIVE
RESISTIVE
3 AMPS
9
7
B
A
10 AMPS
B
A
DPST-NO & DPST-NC CONTACT VERSIONS
WITH BLOWOUT MAGNETS NOW UL APPROVED
@ 5 AMPS, 150 VDC.
ALSO
AVAILABLE
DPDT
FIG. "A"
SPST-NO-DM
FIG. "B"
* RELEVANT IEC CONTACT UTILIZATION CATEGORIES
AC-1, AC-3, DC-1, AC-15
Struthers-Dunn
(SEE SECTION 11 FOR RELEVANT UTILIZATION CATEGORIES.)
RELAYS CAN BE ORDERED EITHER BY MAGNECRAFT OR STRUTHERS-DUNN PART NUMBERS LISTED BELOW
COIL Measured @ 25˚C
DUAL MARKED PART NUMBERS
WIRING CONTACT
CROSS REFERENCE
T O
POTTER/BRUMFIELD
NOMINAL
NOMINAL
RESISTANCE NOMINAL
DIAG.
FIG.
CONFIGU-
RATION
Struthers-Dunn
INPUT
POWER
(OHMS)
W388B
A283
VOLTAGE
AC OPERATED WITH BLOWOUT MAGNET (3 AMP CONTACTS)
W388ABCPX-5
DPDT
-
2.0VA
A283XBX69C-120A "A"
KUEP-11A15-120
120 VAC
DC OPERATED WITH BLOWOUT MAGNET (3 AMP CONTACTS)
W388BCPX-2
W388BCPX-3
W388BCPX-5
DPDT
DPDT
DPDT
120
472
10,000
1.2W
1.2W
1.2W
A283XBX69C-12D
A283XBX69C-24D
A283XBX69C-110D "A"
"A"
"A"
KUEP-11D15-12
KUEP-11D15-24
KUEP-11D15-110
12 VDC
24VDC
110 VDC
AC OPERATED WITH BLOWOUT MAGNET (10 AMP CONTACTS)
W388ADBCPX-5
SPST-NO (DM)
-
2.OVA
A283HXX69C-120A 'B'
KUEP-3A15-120
120 VAC
DC OPERATED WITH BLOWOUT MAGNET (10 AMP CONTACTS)
W388DBCPX-2
W388DBCPX-3
W388DBCPX-5
SPST-NO (DM)
SPST-NO (DM)
SPST-NO (DM)
120
472
10,000
1.2W
1.2W
1.2W
A283HXX69C-12D
A283HXX69C-24D
A283HXX69C-110D 'B'
'B'
'B'
KUEP-3D15-12
KUEP-3D15-24
KUEP-3D15-110
12 VDC
24 VDC
110 VDC
PART NUMBERS SHOWN ALSO AVAILABLE THRU STOCKING DISTRIBUTION.
SEE SECTION 10 FOR MATING SOCKETS
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ETC [ ETC ]
