The Macromatic TD-71528 is a Single Shot Time Delay Relay. This 11 pin plug-in relay has an input voltage of 24V AC/DC with an output of 10A DPDT. It has a time range of 0.05 sec to 999 hours. The unit has one pushbutton thumbwheel that chooses one of seven time ranges, while three other thumbwheels digitally set the precise time delay within that range. The red LED shows the current status of the timing mode and time out conditions. The TD71528 uses an 11 pin 70170-D octal socket. Note: Image is an approximation. Actual part may differ.

Specifications

Relay Function- Single Shot
Relay Timing Range- 0.05 Sec - 999 Hours
Input Voltage- 24V AC/DC
Output- 10A DPDT
Voltage Tolerance- AC Operation: +10/-15% of nominal at 50/60 Hz
DC Operation: +10/-15% of nominal
Load- 3VA
Setting Accuracy- Constant Voltage/Temp: The greater amount of +/-0.1% of set time or +/-50ms, Variable Voltage/Temp: The greater amount of +/- 1% of set time or +/- 50ms.
Repeat Accuracy- Constant Voltage/Temp: The greater amount of +/-0.1% of set time or +/-0.02 sec, Variable Voltage/Temp: The greater amount of +/- 1% of set time or +/- 0.02 sec.
Reset Time- Functions with control switches: 0.04 Seconds
Start Up Time- 0.05 Sec
Maintain Function Time- 0.01 Sec
Insulation Voltage- 2000 V
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- DPDT 10A @ 240V AC/30V DC,
1/2HP @ 120/240V AC (N.O.), 1/3HP @ 120/240V AC (N.C.)
B300 & R300; AC15 & DC13
Life- Mechanical: 10,000,000 Operations, Full Load: 100,000 Operations
Dimensions- 2.4" Height x 1.7" Width x 3" Depth
Approvals- UL Recognized, CE, CSA, UL Listed (with Socket)

With the Single Shot function, the relay energizes though the use of a trigger, which also starts the time delay. The relay de-energizes after the time delay and the trigger needs to be applied again to re-energize. Input voltage must already be in place before the trigger is accepted. Pilot duty rating

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Macromatic TD-71528 Single Shot Time Delay Relay