KUL
series
10 Amp Magnetic
Latching Relay
File E22575
File 15734
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.
Coil Data
Nominal
Voltage
DC
Resistance
in Ohms
± 10%†
120
472
1,800
90
350
1400
176
3,700
17
,900
Latch
Reset
Must
Operate
Voltage
0.5 W
Resistor
Single Coil
DC
Coils
12
24
48
12
24
48
9.0
18.0
36.0
Dual Coil*
9.0
18.0
36.0
20.4
102.0
204.0
Dual Coil
24
120
*
100
2525
250
7800
20.4
102.0
___
___
___
___
___
680Ω
15,000Ω
68,000Ω
___
___
___
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.
AC
Coils
50/60 Hz.
24
120
240
Single Coil with Diodes**
Contact Ratings
Contact
Code
5
Arrangement
1,2,3 poles
Ratings
10A @ 28VDC or 240VAC, 80%
PF; 1/4 HP @ 120VAC, 1/3 HP
@ 240VAC
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.
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.
Initial Dielectric Strength
Between Open Contacts:
500V rms.
Between Adjacent Contacts:
1,500V rms.
Between Contacts and Coil:
1,500V rms.
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.
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.
Mechanical Data
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.
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.
Ordering Information
Typical Part No.
B
KUL
-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)
3. Coil Input:
A = AC
4. Mounting:
1 = Plain case
D = DC
5 = Bracket mount case
14 = 3 Form C (3PDT)
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)
Stock Items – The following items are normally maintained in stock for immediate delivery.
KUL
-5A15S-120
KUL
-11A15S-24
KUL
-11A15S-120
KUL
-11D15D-12
KUL
-11D15D-24
KUL
-11D15S-12
KUL-11D15S-24
Outline Dimensions
1
4
7
A
2.156 MAX.
(54.76)
1.531 MAX.
(38.89)
2
5
8
3
6
9
B
1.406 MAX.
(35.71)
Wiring Diagrams (Bottom Views)
Single Coil Type S
DC Single Coil
1 Form C
2
5
7
A
-
+
LATCH
RESET
B
+
-
7
A
COMMON
Note 2
Dual Coil Type D
AC Coil
1 Form C
2
5
9
B
AC or DC Dual Coil
1 Form C
2
5
RESET 7
LATCH A
-
+
-
RESET B
+
8
9
LATCH
1.378 MAX.
(35.0)
2 Form C
1
4
7
A
-
+
LATCH
RESET
3
6
9
B
+
-
2 Form C
RESET
1
4
7
A
COMMON
Note 2
2 Form C
RESET
3
6
9
B
LATCH -
1
4
7
A
5
8
+
LATCH
Polarity for DC only.
-
3
6
9
B
+
2.125 MAX.
(53.96)
2.156 MAX.
(54.76)
See KU series drawings for bracket mount case.
8
3 Form C
3 Form C
3
6
9
B
1
4
7
A
2
5
8
3
6
9
B
LATCH
Note 3
Terminal Dimensions
.187" (4.75mm) Standard
.078
(1.98)
.125
(3.18)
.187
±
.0 02
(4.75
±
.05)
.250
(6.35)
HEADER
.281 REF
.
(7
.14)
.020
THICKNESS (.51)
1
4
7
A
-
+
2
5
8
LATCH
RESET
+
-
RESET
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.
Tyco Electronics Corporation - P&B, Winston-Salem, NC 27102
Technical Support Center: 1-800-522-6752, www.pandbrelays.com
Specifications and availability subject to change without notice.
13C5850
Printed in U.S.A.
IH/3-00
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