Catalog 1308242
Issued 3-03 P&B
CK series
Mid-Priced CMOS IC Time Delay Relay
Choice of timing modes
Delay on operate
Delay on release
Delay on dropout (no input required during timing)
Interval on
Knob or resistor adjustable types
10A output relay with DPDT contacts
Various models time from 0.1 to 180 sec.
File E22575
File LR15734
Users should thoroughly review the technical data before selecting a product part
number. It is recommended that user 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.
Timing Modes Contact Data @ 25C
Arrangements: 2 Form C (DPDT).
Delay on operate Delay period begins when input voltage is applied. At
the end of the delay period, the relay will operate and will not release until Material: Silver-cadmium oxide alloy.
Rating: 10A @ 30VDC or 277VAC, resistive; 1/2 HP @ 250VAC; 1/3 HP @
input voltage is removed. Reset occurs when input voltage is reapplied.
120VAC.
INPUT Expected Mechanical Life: 10 million operations.
ON
VOLTAGE OFF
Expected Electrical Life: 100,000 operations, min., at rated load.
N.O. RELAY ON
TIME
CONTACTS
OFF
Delay on release Input voltage must be applied continuously to operate Initial Dielectric Strength
the internal relay. When the control switch is closed, the relay energizes.
Between Open Contacts: 500V rms, 60 Hz.
When the control switch is opened, timing begins. When timing is
Between All Other Conductors: 500V rms, 60 Hz.
complete, the relay will de-energize. Time may be reset to zero during
timing by closing the control switch.
CONTROL
ON
SWITCH OFF
N.O. RELAY
ON
Input Data @ 25C
TIME
CONTACTS OFF
Voltage: 24 & 120VAC and 12 & 24VDC.
Power Requirement: AC Types: Typically less than 3 VA.
DC Types: Typically less than 3 W.
Delay on dropout The relay operates immediately upon application of
Initiate Time: Delay on dropout timers must have input voltage applied for
input voltage. Timing begins when input voltage is removed. When timing
a minimum of three seconds for dropout function to be
is complete, the relay will de-energize. Reset occurs when input voltage is
guaranteed.
reapplied.
Transient Protection: Yes.
INPUT Reverse Voltage Protection: Yes.
ON
VOLTAGE
OFF
Input Voltages & Limits @ 25C
N.O. RELAY
ON
TIME
CONTACTS
OFF
Voltage Nominal Minimum Maximum
Type Voltage Voltage Voltage
Interval on (with control switch) Input voltage must be applied
AC 24 20 28
continuously to operate the internal relay. The relay energizes and timing
120 105 130
begins when the external switch is closed. At the end of the time delay
DC 12 11 13
period the relay will de-energize. Reset is accomplished by opening and
24 20 32
reclosing the control switch.
Note: DC voltage must be filtered (5% p-p ripple max. at nom. voltage).
CONTROL
ON
AC models will operate on 50 or 60 Hz.
SWITCH
OFF
N.O. RELAY
ON
TIME
CONTACTS
OFF
Environmental Data
Timing Specifications
Temperature Range: Storage: -55C to +85C.
Timing Ranges: From 0.1 to 180 sec.
Operating: -10C to +55C.
Timing Adjustment: External resistor and knob adjustable.
Tolerance (for AC units add 1/2 cycle 60 Hz.):
Knob Adj. Types:0, +20% of max. specified at high end of timing range;
Mechanical Data
min. specified, or less, at low end.
Fixed Types: 5%.
Termination: 8- or 11-pin octal style plug.
Res. Adj. Types: 5% at high end of timing range; min. specified, or less, Enclosure: White plastic case. Knob adjustable types have dial scale for
at low end.
reference only.
Delta Time (for AC units add 1 cycle 60 Hz.): 10%. Sockets: Models with 8-pin base fit either 27E122 or 27E891 (snap-on)
Repeatability (for AC units add 1 cycle 60 Hz.): 2%.
screw terminal sockets. 11-pin types fit either 27E123 or
Release Time: 60 ms, typ.; 100 ms, max. 27E892 (snap-on) screw terminal sockets.
Recycle Time: 60 ms, typ.; 100 ms, max.
Weight: 6 oz. (170g) approximately.
Dimensions are shown for Dimensions are in inches over Specifications and availability www.tycoelectronics.com
reference purposes only. (millimeters) unless otherwise subject to change. Technical support:
1224
specified. Refer to inside back cover.Catalog 1308242
Issued 3-03 P&B
Ordering Information Authorized distributors are more likely to stock boldface items listed below.
Delay On Release Models
Delay On Operate Models
Voltage Time Adjustment Wiring Dia. Part Number
Voltage Time Adjustment Wiring Dia. Part Number
0.1 to 10 Sec. CKB-38-78010
24VAC 0.1 to 10 Sec. Knob 1 CKB-38-30010
120VAC 0.6 to 60 Sec. Knob 3 CKB-38-78060
0.1 to 10 Sec. CKB-38-70010
1.8 to 180 Sec. CKB-38-78180
120VAC 0.6 to 60 Sec. Knob 1 CKB-38-70060
120VAC 0.1 to 10 Sec. Resistor 4 CKF-38-78010
1.2 to 120 Sec. CKB-38-70120
1.8 to 180 Sec. CKB-38-70180
24VDC 0.1 to 10 Sec. Resistor 4 CKH-38-38010
120VAC 0.1 to 10 Sec. Resistor 2 CKF-38-70010
12VDC 0.1 to 10 Sec. Knob 1 CKD-38-20010
Delay On Dropout Models
Voltage Time Adjustment Wiring Dia. Part Number
24VAC 0.1 to 10 Sec. Knob 1 CKB-38-37010
0.6 to 60 Sec. CKB-38-37060
0.1 to 10 Sec. CKB-38-77010
120VAC 0.6 to 60 Sec. Knob 1 CKB-38-77060
1.2 to 120 Sec. CKB-38-77120
Interval On Models
Voltage Time Adjustment Wiring Dia. Part Number
120VAC 0.1 to 10 Sec. Knob 3 CKB-38-79010
Outline Dimensions
2.406 MAX.
(61.1)
2.937 MAX.
.56 1.781 MAX.
.60
(74.6)
(45.2)
(14.2)
(15.2)
Wiring Diagrams Bottom Views (pins numbered clockwise from keyway)
EXTERNAL RESISTOR
EXTERNAL RESISTOR
EXTERNAL
EXTERNAL
CONTROL
CONTROL
SWITCH*
_ SWITCH*
_
+ +
CONTINUOUS
CONTINUOUS
_
_
+
+
SUPPLY SUPPLY
INPUT INPUT INPUT
INPUT
(DC POLARITY INDICATED)** (DC POLARITY INDICATED)** (DC POLARITY INDICATED)** (DC POLARITY INDICATED)**
Fig.1 Fig. 2 Fig. 3 Fig. 4
8 Pin 11 Pin 11 Pin 11 Pin
* If control switch is closed when power is applied, relay will immediately energize. A 50 millisecond minimum switch closure is required. IMPORTANT: A dry circuit switch is recommended. A dry
circuit switch is one rated to reliably switch currents of less than 50mA. Use of a switch rated for other than dry circuit may result in failure of the time delay relay to function properly.
** Note: Input polarity for DC operation. For most reliable operation on AC, connect high side to + and low side to .
External Resistor Chart
See External Resistor Selection Charts at beginning of Time Delay Relay section of this Databook.
Dimensions are shown for Dimensions are in inches over Specifications and availability www.tycoelectronics.com
reference purposes only. (millimeters) unless otherwise subject to change. Technical support:
1225
specified. Refer to inside back cover.