Time Delay Relays Dedicated - Recycle KRDR SERIES Description The KRDR Series is a compact time-delay relay measuring only 2 in. (50.8 mm) square. Its solid-state timing circuit provides excellent repeat accuracy and stability. Encapsulation protects against shock, vibration, and humidity. The KRDR Series is a cost effective recycling timer for OEM applications that require small size, isolation, reliability, and long life. Operation (Recycling - ON Time First) Upon application of input voltage, the output relay energizes and the T2 ON time begins. At the end of the ON time, the output de-energizes and the T1 OFF time begins. At the end of the OFF time, the output relay energizes and the cycle repeats as long as input voltage is applied Reset: Removing input voltage resets the output and the time delays, and returns the sequence to the ON time. Operation (Recycling - OFF Time First) Upon application of input voltage, the T1 OFF time begins. At Wiring Diagram the end of the OFF time, the T2 ON time begins and the load energizes. At the end of the ON time the load de-energizes, and the cycle repeats until input voltage is removed. L1 N/L2 Reset: Removing input voltage resets the output and the V = Voltage sequence to the OFF time. C = Common NO = Normally Open NC = Normally Closed Features & Benefits T1 = OFF Time T2 = ON Time FEATURES BENEFITS Compact design and Provides greater flexibility for OEM applications and A knob is supplied for independent adjustment reduces component and labor costs adjustable units. of ON and OFF times Repeat Accuracy + / - 0.5%, Microcontroller based Factory calibration + / - 5% Isolated, 10A, SPDT Allows control of loads for AC or DC voltages output contacts Encapsulated Protects against shock, vibration, and humidity Ordering Information Accessories INPUT T2 ON FIRST T1 OFF P1023-6 Mounting bracket MODEL ADJUST. VOLT. TIME DELAY TIME The 90 orientation of mounting slots makes KRDR115MB25M 12VDC Fixed 5m Off time 25m installation/removal of modules quick and easy. KRDR120A0 12VDC Adjustable 0.1 - 10s On time 0.1 - 10s P1015-13 (AWG 10/12), P1015-64 (AWG 14/16) KRDR121A1 12VDC Adjustable 1 - 100s On time 1 - 100s Female Quick Connect KRDR320B0 24VDC Adjustable 0.1 - 10s Off time 0.1 - 10s These 0.25 in. (6.35 mm) female terminals are constructed with an insulator barrel to provide KRDR321A4 24VDC Adjustable 1 - 100s On time 1 - 100m strain relief. KRDR321B4 24VDC Adjustable 1 - 100s Off time 1 - 100m P1015-18 Quick Connect to Screw Adapter KRDR420A3 120VAC Adjustable 0.1 - 10s On time 0.1 - 10m Screw adapter terminal designed for use with KRDR421A4 120VAC Adjustable 1 - 100s On time 1 - 100m all modules with 0.25 in. (6.35 mm) male quick connect terminals. KRDR424A0 120VAC Adjustable 1 - 100m On time 0.1 - 10s C103PM (AL) DIN Rail KRDR424A4 120VAC Adjustable 1 - 100m On time 1 - 100m 35 mm aluminum DIN rail available in a 36 in. On time KRDR440.5SA0 120VAC 0.5s On time 0.1 - 10s (91.4 cm) length. fixed If you dont find the part you need, call us for a custom product 800-843-8848 P1023-20 DIN Rail Adapter Allows module to be mounted on a 35 mm DIN type rail with two 10 screws. 2016 Littelfuse Protection Relays & Controls Rev: 1-A-061016 www.littelfuse.com/krdrTime Delay Relays Dedicated - Recycle KRDR SERIES Output Current/Ambient Temperature Specifications Time Delay Range 0.1s - 1000m in 6 adjustable ranges or fixed Repeat Accuracy 0.5 % or 20ms, whichever is greater Tolerance (Factory Calibration) 5% Reset Time 150ms Time Delay vs Temp. & Voltage 5% Input Voltage 12, 24 or 110VDC 24, 120 or 230VAC Tolerance 12VDC & 24VDC/AC -15% - 20% 110VDC & 120 or 230VAC -20% - 10% Function Diagrams AC Line Frequency/DC Ripple 50/60 Hz / 10% V = Voltage RECYCLING (ON FIRST) Power Consumption AC 2VA DC 2W NO = Normally Output Open Contact Type Isolated relay contacts NC = Normally Form SPDT V = Voltage Closed Contact Rating (at 40C) 10A resistive 125VAC NO = Normally Open TD1 = OFF Time Contact 5A resistive 230VAC & 28VDC TD2 = ON Time NC = Normally Closed 1/4 hp 125VAC R = Reset Contact Max. Switching Voltage 250VAC V = Voltage RECYCLE (OFF TIME FIRST) T1 = OFF Time 7 5 Life (Operations) Mechanical - 1 x 10 Electrical - 1 x 10 NO = Normally T2 = ON Time Protection Open Contact R = Reset Circuitry Encapsulated NC = Normally Closed Contact Isolation Voltage 1500V RMS input to output TD1, TD2 = Time Delay Insulation Resistance 100 M R = Reset Polarity DC units are reverse polarity protected Mechanical Mounting Surface mount with one 10 (M5 x 0.8) screw Dimensions H 50.8 mm (2) W 50.8 mm (2) D 30.7 mm (1.21) Termination 0.25 in. (6.35 mm) male quick connect terminals Environmental Operating/Storage Temperature -20 to 60C / -40 to 85C Humidity 95% relative, non-condensing Weight 2.6 oz (74 g) 2016 Littelfuse Protection Relays & Controls Rev: 1-A-061016 www.littelfuse.com/krdr