SSAC TA Series Catalog Page
Lockout TimerLockout Timer
Lockout Timer
Lockout TimerLockout Timer
TA Series
HVAC/R Timer
DescriptionDescription
Description
DescriptionDescription
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.
Lockout Delay--Prevents
Rapid Recycling of a
Compressor
Low Voltage Brownout
Protection
Circuitry to Activate the
Cooling Anticipator (24 V AC
Models)
Eliminates Nuisance Service
Calls Due to Blown Fuse or
Tripped Breakers
Approvals:
(24 V AC only)
AccessoriesAccessories
Accessories
AccessoriesAccessories
Female quick connect
P/N:
P1015-64 P1015-64
P1015-64
(AWG 14/16)
P1015-64 P1015-64
OperationOperation
Operation
OperationOperation
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:Reset:
Reset:
The lockout time delay cannot be reset.
Reset:Reset:
ConnectionConnection
Connection
ConnectionConnection
FunctionFunction
Function
FunctionFunction
)
V = Voltage S1 = Initiate Switch or Thermostat
L = Load (CR) E = Ready R = Reset
TD = Time Delay
Quick connect to
screw adaptor
P1015-18 P1015-18
P/N:
P1015-18
P1015-18 P1015-18
Mounting bracket
P1023-6 P1023-6
P/N:
P1023-6
P1023-6 P1023-6
DIN rail P/Ns:
017322005 017322005
017322005 (Stee l)
017322005 017322005
C103PM C103PM
C103PM (Al)
C103PM C103PM
→
DIN rail adaptor
P1023-20 P1023-20
P/N:
P1023-20
P1023-20 P1023-20
See accessory pages for
specifications.
←
Dashed lines are internal connections.
S1 = Initiate Switch, Contact, or Thermostat
CR = Compressor Relay (Load) CA = Optional Cooling Anticipator
OrOr
dering Tdering T
Or
dering T
OrOr
dering Tdering T
ableable
able
ableable
InputInput
Input
InputInput
24 V AC
24 V AC
24 V AC
24 V AC
12 V DC
24 V DC
24 V DC
24 V DC
24 V DC
Time DelayTime Delay
Time Delay
Time DelayTime Delay
30 s
2 m
3 m
5 m
1 m
30 s
2 m
3 m
5 m
Part NumberPart Number
Part Number
Part NumberPart Number
TA24A0.5
TA24A2
TA24A3
TA24A5
TA12D1
TA24D0.5
TA24D2
TA24D3
TA24D5
Low Voltage Products & Systems5.226
TA002B01 01.05.05
Lockout TimerLockout Timer
Lockout Timer
Lockout TimerLockout Timer
TA Series
HVAC/R Timer
Technical Data Technical Data
Technical Data
Technical Data Technical Data
InputInput
Input
InputInput
Voltage/Frequency 12 or 24 V DC; 24 V AC, 50 ... 60 Hz
Impedance 450 Ω (anticipator by-pass)
OutputOutput
Output
OutputOutput
Minimum Load Current 75 mA
Maximum Load Current 1 A at 60°C
Voltage Drop ≤ 1.25 V
Time DelayTime Delay
Time Delay
Time DelayTime Delay
Initiate Time ≅ 16 ms
Lockout Time Fixed 0.5, 1, 2, 3, or 5 m
Tolerance -15% ... +35%
ProtectionProtection
Protection
ProtectionProtection
Circuitry Encapsulated
Low Voltage Protection ≅ 20 V: 24 V AC/DC; ≅ 9 V: 12 V DC
Dielectric Breakdown ≥ 2000 V RMS terminals to mounting surface
Insulation Resistance ≥ 100
MechanicalMechanical
Mechanical
MechanicalMechanical
Mounting Surface mount with one #10 (M5 x 0.8) screw
Package 2 x 2 x 1.21 in. (50.8 x 50.8 x 30.7 mm)
Termination 0.25 in. (6.35 mm) male quick connect terminals
EnvironmentalEnvironmental
Environmental
EnvironmentalEnvironmental
Operating Temperature -40°C ... +70°C
Storage Temperature -40°C ... +85°C
Humidity 95% relative, non-condensing
Weight ≅ 2.4 oz (68 g)
ThermostatThermostat
Thermostat
ThermostatThermostat
Cooling Anticipator Resistor ≥ 1800
MΩ
Ω
Mechanical View Mechanical View
Mechanical View
Mechanical View Mechanical View
Inches (Millimeters)
TA002B01 01.05.05
Low Voltage Products & Systems 5.227
Loading...