Littelfuse TA12D2, TA Series, 12VDC, On-Delay Time Delay Relay SPST-NO (1 Form A) Fixed, 2 Min Delay Chassis Mount

In stock
SKU: TA12D2
Regular price $96.66
Rated voltage

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The TA Series prevents rapid recycling of a compressor. A lockout delay is started when the thermostat opens, or input voltage is lost. Eliminates tripped circuit breakers or blown fuses caused by a locked rotor during short cycling. The TA will not allow the compressor to start when the line voltage is low. Chatter of the compressor relay is eliminated. Because of the fast initiate time, bounce of the thermostat will not be transmitted to the compressor relay coil. A 30 second delay provides anti-reversing protection for scroll compressors.

Operation (Lockout)
On initial closure of the S1, the compressor relay energizes immediately. When S1 opens or input voltage is interrupted, a lockout time delay is initiated. During this lockout time delay, the compressor relay cannot be energized. The low voltage (brownout) protection prevents energization of the compressor when the line voltage is low
Reset: The lockout time delay cannot be reset. After the time delay is completed, the unit automatically resets.

Pre-order 6-8 Weeks

Input
Voltage 12 or 24VDC; 24VAC
Impedance 450 Ω (anticipator by-pass)
AC Line Frequency 50/60 Hz
Output
Minimum Load Current 75mA
Maximum Load Current 1A at 60°C
Voltage Drop ≤ 1.25V
Time Delay
Initiate Time ≅ 16ms
Lockout Time Fixed 0.5, 1, 2, 3, or 5m
Tolerance -15% - 35%
Protection
Circuitry Encapsulated
Low Voltage Protection ≅ 20V: 24VAC/DC; ≅ 9V: 12VDC
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)
Thermostat
Cooling Anticipator Resistor ≥ 1800 Ω