Time Delay Relays Dedicated - HVAC TL SERIES Lockout Description The TL Series provides protection against short cycling of a compressor. At the end of each operation, or whenever power is lost, a lockout delay is initiated. This lockout delay prevents restarting of the compressor until the head pressure has equalized. Compressor relay chatter due to thermostat bounce is eliminated by use of optional one second delay-on-make. The TL Series should not be used with cooling anticipator resistors or solid-state switches. (See the TA Series). Operation (Lockout) Lockout: On initial closure of S1, the compressor relay energizes immediately (or after an optional 1s delay). When the S1 opens or input voltage is interrupted, the output opens and remains open for the lockout time delay. During this lockout time delay period, the compressor relay cannot be re-energized. Reset: The lockout time delay cannot be reset. After the time delay is completed, the unit automatically resets. Wiring Diagram Features & Benefits FEATURES BENEFITS L1 N/L2 Prevents rapid cycling of compressor and eliminates Lockout delay nuisance service calls due to blown fuse or tripped breaker by locked rotor during short cycling. One second Eliminates contactor chatter due to Delay-on-Make V = Voltage thermostat bounce (models ending in T) S1 = Initiate Switch No moving parts to arc and wear out over time and CR = Compressor or Totally solid state encapsulated to protect against shock, vibration, Control Relay and encapsulated and humidity 1A steady, 10A inrush, Provides 100 million operations in typical conditions solid state output Accessories P1023-6 Mounting bracket The 90 orientation of mounting slots makes installation/removal of modules quick and easy. P1015-64 (AWG 14/16) Female Quick Connect These 0.25 in. (6.35 mm) female terminals are constructed with an insulator barrel to provide Ordering Information strain relief. MODEL INPUT VOLTAGE LOCKOUT TIME DELAY-ON-MAKE P1015-18 Quick Connect to Screw Adapter Screw adapter terminal designed for use with TL120A5T 120VAC 5m 1s all modules with 0.25 in. (6.35 mm) male quick connect terminals. TL230A5 230VAC 5m No delay C103PM (AL) DIN Rail TL24A5T 24VAC 5m 1s 35 mm aluminum DIN rail available in a 36 in. If you dont find the part you need, call us for a custom product 800-843-8848 (91.4 cm) length. 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-062316 www.littelfuse.com/tlTime Delay Relays Dedicated - HVAC TL SERIES Mechanical Specifications Mounting Surface mount with one 10 (M5 x 0.8) screw Input Dimensions H 50.8 mm (2) W 50.8 mm (2) Voltage 24, 120, or 230VAC D 30.7 mm (1.21) AC Line Frequency 50/60 Hz Termination 0.25 in. (6.35 mm) male quick connect terminals Tolerance 20% Environmental Output Operating/Storage Minimum Load Current 40mA Temperature -40 to 70C / -40 to 85C Maximum Load Current 1A 24VAC 0.5A 120 & 230VAC at 60C Humidity 95% relative, non-condensing Inrush Current 10A at 60C Weight 2.4 oz (68 g) Voltage Drop 24VAC - 2.5V 1A 120 & 230VAC - 4.2V 0.5A *Power must be applied for at least 15 s to achieve a full lockout delay. Less than 15 s will result Time Delay in proportionally shorter delay periods. Initiate Time 8ms Lockout Time* Fixed 2, 3, or 5m NOTE: Cooling anticipator resistor or leakage may cause erratic operation. See TA Series for use with 24VAC systems that include anticipator resistors or use solid-state switches. Tolerance -15% - 35% Option 1s delay-on-make eliminates contactor chatter due to thermostat bounce Protection Circuitry Encapsulated Function Diagram Dielectric Breakdown 2000V RMS terminals to mounting surface LOCKOUT Insulation Resistance 100 M V = Voltage S1 = Initiate Switch E L = Load (CR) E = Ready TD = Time Delay L R = Reset 2016 Littelfuse Protection Relays & Controls Rev: 1-A-062316 www.littelfuse.com/tl