Description
The model 437 is a Delay-on-Make
timer which operates any DC device such as a relay, solenoid or lamp. When the DC voltage
is applied, the 437 remains in the "off" state permitting less than 3
milliamperes to flow through the load. When the delay period has elapsed, the timer
switches "on" permitting full current to flow through the energized load. The
load remains energized as long as the DC power is applied. Voltage must be removed for at
least 50 milliseconds in order for the 437 to reset. Polarity must be observed during
wiring.
Specifications
| Operating Voltage |
Any voltage from 5-200V DC. |
| Output |
20 milliamperes to 2 Amperes inductive.
Inductive loads must have protective snubber diode. |
| Timing Mode |
Delay-on-Make |
| Timing Range |
Factory fixed from 50 milliseconds to 600
seconds. |
| Timing Tolerance |
+/- 10% |
| Timing Repeatability |
+/- 5% at stabilized operating voltage and
temperature. |
| Transient Protection |
8 Joules. |
| Operating Temperature |
-20 deg C to +85 deg C. |
437 Specifications : click to view , right
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Ordering Information
| Model |
Voltage |
Time Delay |
Case & Wiring Style |
| 437 |
5-200VDC |
50 milliseconds to 600 seconds |
-A 20 AWG Solid Wire
-B 20 AWG Stranded Wire |
Example : 437-24-30 operates from 24VDC with
a fixed delay of 30 seconds |
