Product Overview

© 2016 Littelfuse Protection Relays & Controls
Time Delay Relays
Dedicated - HVAC
www.littelfuse.com/tl
Rev: 1-A-062316
TL SERIES
Specifications
Input
Voltage 24, 120, or 230VAC
AC Line Frequency 50/60 Hz
Tolerance ±20%
Output
Minimum Load Current ≤ 40mA
Maximum Load Current 1A @ 24VAC; 0.5A @ 120 & 230VAC at 60°C
Inrush Current 10A at 60°C
Voltage Drop 24VAC - 2.5V @ 1A
120 & 230VAC - 4.2V @ 0.5A
Time Delay
Initiate Time ≅ 8ms
Lockout Time* Fixed 2, 3, or 5m
Tolerance -15% - 35%
Option 1s delay-on-make eliminates contactor chatter
due to thermostat bounce
Protection
Circuitry Encapsulated
Dielectric Breakdown ≥ 2000V RMS terminals to mounting surface
Insulation Resistance ≥ 100 MΩ
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 -40° to 70°C / -40° to 85°C
Humidity 95% relative, non-condensing
Weight ≅ 2.4 oz (68 g)
*Power must be applied for at least 15 s to achieve a full lockout delay. Less than 15 s will result
in proportionally shorter delay periods.
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.
Function Diagram
LOCKOUT
L
E
V = Voltage
S1 = Initiate Switch
L = Load (CR)
E = Ready
TD = Time Delay
R = Reset