908
P&B
Dimensions are shown for
reference purposes only.
Dimensions are in inches over
(millimeters) unless otherwise
specified.
Catalog 1308242
Issued 3-03
Specifications and availability
subject to change.
www.tycoelectronics.com
Technical support:
Refer to inside back cover.
KUL series
10 Amp Magnetic
Latching Relay
File E22575
File 15734
Users should thoroughly review the technical data before selecting a product
part number. It is recommended that users also seek out the pertinent approvals
files of the agencies/laboratories and review them to ensure the product meets
the requirements for a given application.
Features
• Single or dual-wound DC coils or single-wound AC coils.
• Contact arrangements to 3PDT.
• Reset occurs by reversing polarity in a single coil relay or by energizing
the reset winding in dual coil relays.
• Uses same sockets as other KU relays.
• Well suited for applications such as alarm systems, machine tools,
battery chargers and process controls.
Contact Data @ 25°C
Arrangements:
DC Single Coil: 1 Form C (SPDT), 2 Form C (DPDT) and
3 Form C (3PDT).
DC Dual Coil: 1 Form C (SPDT) and 2 Form C (DPDT).
AC Single Coil: 1 Form C (SPDT), 2 Form C (DPDT) and
3 Form C (3PDT).
Materials: Siver-cadmium oxide.
Expected Life:
Mechanical: 10 million operations.
Electrical: 100,000 operations minimum at rated load.
Coil Data @ 25°C
Duty Cycle: Continuous. (Latch and reset not to be energized
simultaneously).
Initial Insulation Resistance: 100 megohms, minimum.
Initial Breakdown Voltage: 1500V rms, 60 Hz. between all elements.
Initial Dielectric Strength
Between Open Contacts: 500V rms.
Between Adjacent Contacts: 1,500V rms.
Between Contacts and Coil: 1,500V rms.
Operate Data @ 25°C
Must Operate Voltage:
DC Coils: 75% of nominal voltage.
AC Coils: 85% of nominal voltage.
Operate Time : 25 milliseconds maximum at nominal voltage.
Release or Reset Time: 25 milliseconds maximum at nominal voltage.
Environmenal Data
Temperature Range:
Storage: -45°C to +105°C.
Operating:
Single Coil AC & DC: -45°C to +70°C.
Dual Coil DC: -45°C to +50°C.
Mechanical Data
Termination:.187" (4.75mm) quick connect/solder terminals. Sockets are
available.
Enclosure: Clear plastic polycarbonate heat and shock resistant case.
Weight: 3.4 oz. (96g) approximately.
Note: On single coil AC models one terminal is common. Latch/Reset function is
accomplished by input in series with a diode to provide the correct polarity to the coil.
To perform either function, the terminal not being used (Latch or Reset) must be open
or isolated with no other path to common or ground.
Contact Ratings
Contact Arrangement Ratings
Code
51,2,3 poles 10A @ 28VDC or 240VAC, 80%
PF; 1/4 HP @ 120VAC, 1/3 HP
@ 240VAC
Coil Data
DC Must
Nominal Resistance Operate 0.5 W
Voltage in Ohms Voltage Resistor
± 10%†
Single Coil
12 120 9.0 ___
DC 24 472 18.0 ___
Coils 48 1,800 36.0 ___
Dual Coil*
12 90 9.0 ___
24 350 18.0 ___
48 1400 36.0 ___
Single Coil with Diodes**
AC 24 176 20.4 680Ω
Coils 120 3,700 102.0 15,000Ω
50/60 Hz. 240 17,900 204.0 68,000Ω
Dual Coil
Latch Reset
24 100 250 20.4 ___
120 2525 7800 102.0 ___
*Dual coil available only with 1 or 2 Form C contacts. On standard dual
coil relays, the latch and unlatch voltage must be the same. For unlike
voltages, please contact your sales representative.
** Diodes and resistors included inside relay with 1 and 2 Form C
contacts. For 3 Form C relays, the customer must furnish and wire
diodes and resistors externally.
† ±15% for AC coils.
909
P&B
Dimensions are shown for
reference purposes only.
Dimensions are in inches over
(millimeters) unless otherwise
specified.
Catalog 1308242
Issued 3-03
Specifications and availability
subject to change.
www.tycoelectronics.com
Technical support:
Refer to inside back cover.
.187 ± .002
(4.75 ± .05)
.125
(3.18)
.078
(1.98)
.250
(6.35)
.281 REF.
(7.14)
.020
(.51)
THICKNESS
HEADER
Our authorized distributors are more likely to maintain the following items in stock for immediate delivery..
Outline Dimensions Wiring Diagrams (Bottom Views)
.187" (4.75mm) Standard
2 Form C 2 Form C
2 Form C
3 Form C 3 Form C
Polarity for DC only.
Note 1 Contact positions shown in diagrams is with the “RESET” input having been
energized last.
Note 2 Do not connect any low impedance loads from terminal B to A.
Note 3 Resistor and diodes connected by customer. See Coil Data Chart on KUL Series
engineering data page for resistor value. Recommended using 1N4007 diode.
LATCH
RESET
-
+
+
-
2
5
7
AB
LATCH
89
2
5
RESET
-+
AB
-+
7
2
5
7
AB
9
LATCH
RESET
COMMON
LATCH
RESET
-
+
+
-
1
4
7
AB
3
6
9
1
4
7
AB
3
6
9
5
8
LATCH
-+
RESET
+
-
1
4
7
AB
3
6
9
2
5
8
LATCH
RESET
-
+
+
-
LATCH
RESET
1
4
7
AB
3
6
9
2
5
8
1
4
7
AB
3
6
9
8
LATCH
RESET
COMMON
KUL-5A15S-120
KUL-11A15S-24
KUL-11A15S-120
KUL-11D15D-12
KUL-11D15D-24
KUL-11D15S-12
Single Coil Type S Dual Coil Type D
AC or DC Dual Coil
1 Form C
DC Single Coil
1 Form C
AC Coil
1 Form C
Note 2
Note 2
Note 3
1.406 MAX.
(35.71)
1.531 MAX.
(38.89)
1 2 3
4 5 6
7 8 9
AB
2.156 MAX.
(54.76)
2.125 MAX.
(53.96)
2.156 MAX.
(54.76)
1.378 MAX.
(35.0)
See KU series drawings for bracket mount case.
KUL-11D15S-24
Ordering Information
Typical Part No. BKUL -11 D 1 1 D -12
1. Basic Series:
KUL magnetic latching relay
2. Contact Arrangement:
5 = 1 Form C (SPDT) 11 = 2 Form C (DPDT) 14 = 3 Form C (3PDT)
3. Coil Input:
A = AC D = DC
4. Mounting:
1 = Plain case 5 = Bracket mount case
5. Terminal & Contact Materials:
5 = .187" (4.75mm) quick connect/solder; silver-cadmium oxide, 10 amps.
6. Number of Coils:
S = Single coil D = Dual coil (1 & 2 pole models only)
7. Coil Voltages:
Single coil—24-240VAC
12-48VDC
Dual coil—12-48VDC, 24 or 120VAC (to 2 Form C)
Terminal Dimensions
