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 MAX56 1.781 MAX60 (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.