The Macromatic PTA2001H is a percentage timer. This panel mount timer has an input voltage of 120V AC with an output of 10A SPNO and a timer range of 1 hour. It is used for instances when the ON time when used a percentage of a total cycle time has to be adjustable. This timer is useful for applications such as irrigation, heating & cooling, motors, and chemical feeding. It has an integrated potentiometer for time delay adjustment and remembers the timing sequence in case of a power failure. An LED indicator on top shows the relay status. Termination is possible with bare wire or crimp terminals. Mounting hardware included. Note: Image is for reference. Actual part may differ.

Specifications

• Relay Function- Percentage Timer
• Relay Timer Range- 1 Hour
• Input Voltage- 120V AC
• Output- 10A SPNO
• Voltage Tolerance- +10/-15% of nominal at 50/60 Hz
• Load- Max of 3 VA
• Setting Accuracy- +/- 2%
• Setting Precision- +/- 1% of total cycle time
• Dial Resolution- Dial settings marked in 1% increments
• Repeat Accuracy- +/- 0.1% or +/- 0.04 seconds, whichever is greater
• Start Up Time- 0.05 seconds
• Reset Time- 300 milliseconds
• Operating Temperature- -28 C to 65 C (-18 F to 149 F)
• Storage Temperature- -40 C to 85 C (-40 F to 185 F)
• Output Contacts- 10A @ 240VAC / 7A @ 28VDC SPNO, 1/4 HP @ 120VAC
• Lifespan- Mechanical: 10,000,000 operations, Full Load: 100,000 operations
• Termination- Pressure Clamp Screw Terminals, #12-22 AWG wire, solid, stranded wire; Recommended tightening torque 7 in-lbs. (12 in-lbs max)
• Dimensions- 3.5" Height x 3.5" Width x 4.1" Length
• Approvals- UL & CUL Listed, CE

When the input voltage is introduced, the percentage timer relay energizes and the ON time delay (t1) starts. T1 is adjustable as a percentage of the total ON/OFF cycle time (t2), which is one hour. When t1 ends, the relay de-energizes for the rest of the timing cycle. The ON/OFF sequence will then repeat. This continues until the input voltage is removed. The memory feature allows the timer relay to pick up where it left off if the input voltage is taken out and re-introduced. 100% will keep the output constantly energized and 0% will keep it constantly de-energized. The LED on top is steady during the OFF sequence and blinks during the ON sequence.

Macromatic Percentage Timer Installation Manual

PTA2001H 1 Hour 120V Percentage Timer