Macromatic THR-1 SERIES Data Sheet

THR-1 SERIES

Application Data

Voltage Tolerance:

AC Operation: +10/-15% of nominal at 50/60 Hz
DC Operation: +10/-15% of nominal

Load (Burden): Maximum of 2 VA for all voltages

Setting Accuracy:

Maximum Setting (Adjustable): +5%, -0%
Minimum Setting (Adjustable): +0%, -50%
Fixed Time Delay: +2% or 50ms, whichever is greater

Repeat Accuracy (constant voltage and temperature):
+0.1% or + 0.04 seconds, whichever is greater

Reset Time:

Triggered with Input Voltage: 100ms
Triggered with Control Switch: 40ms

Start-up Time (Time from when power is applied until unit is
timing): 0.05 Seconds

Maintain Function Time (Time unit continues to operate after
power is removed): 0.01 Seconds

Units Triggered by a Control Switch:

Minimum required trigger switch closure time is 50ms.

Relay Output

Temperature:

Operate: -28
Storage: -45o to 85oC (-49o to 185oF)

Output Contacts:

10A @ 240VAC / 7A @ 28VDC SPDT, ¼hp @ 120VAC (N.O.)

Life:

Mechanical: 10,000,000 operations
Full Load: 100,000 operations

Compatibility:

Using a solid state switch to initiate the time sequence is acceptable.

Mounting:

Surface with one #8 or #10 screw and a maximum tightening torque of 15
in-lbs.

Termination:

0.25” male quick-connect terminals

Approvals:

o

to 65oC (-18o to 149oF)

File #E109466

time delay relays | encapsulated

Dimensions

All Dimensions in

Inches (Millimeters)

Remote Time Delay

Most THR-1 Series products can be built with two terminals for
remote adjustable or f xed time delays. To order a product with a
remote time delay, complete the Product Number by adding the
two-digit Code from the Table shown on the appropriate product
selection page followed by the suff x “R1”, i.e., THR-10262-30R1.
Contact Macromatic for information on limitations of remote time
delays on functions with ON & OFF timing ranges.

Adjustable Time Delay

A 100K ohm potentiometer is required to obtain the maximum
time delay for all standard ranges. To use other values of remote
potentiometers, contact Macromatic.

Fixed Time Delay

A f xed time delay can be set by connecting a resistor across the
two terminals. To determine the resistor value required, use the
following equation:

T

R =

Example: Using time range 0.1-10 seconds, what resistor value is
required for a f xed time delay of 5 seconds:

R =

T

max

5

10

x 100,000

x 100,000

R = Resistance value required to obtain T
T

= Desired time delay

= Maximum time delay of range

T

max

= 50,000 ohms (50K ohms)

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