Solid State Interval Timer
MODEL 437D |
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- 2 Terminal/In-Line
- Fixed Time to 600 Sec.
- 48V DC Operation
- ½ Ampere Output
- Encapsulated Circuitry
- Transient Protected
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Description
The model 437D
interval
timing
module is an in-line timing device that energizes a
load circuit for a preset timing period each time that operating voltage is applied. Ease
of installation permits the model 437D circuit. When a DC operating voltage is applied the
437D turn ON and the load current is permitted to flow. At the end of the delay period,
the model 437D turns OFF and only leakage current is permitted to flow. To recycle, remove
the operating voltage for at least 50 milliseconds then re-apply.
Specifications
| Operating Voltage |
48V DC, tolerance 30-60V DC. |
| Output |
20 to 500 milliamperes, inductive loads must
have a protective snubber diode. |
| Output Voltage Drop, "ON" state |
12 volts max, 9 volts nominal. |
| Output Leakage Current, "OFF" State |
2mA max. at nominal input voltage |
| Timing Mode |
In-Line Interval |
| Timing Range |
50 milliseconds to 600 seconds. |
| Timing Adjustment |
Factory fixed. |
| Transient Protection |
1000V transients for durations up to 10
milliseconds will not destroy timer. |
437D Specifications : click to view , right
click - Save As ... to download.
Ordering Information
| Model |
Time Delay |
Case Style |
437D |
50 milliseconds to 600 seconds, specify on order |
-C #20AWG solid wire & terminals
(shown)
-D #20AWG Stranded wire (6"), no terminals
-E Wire wrap terminals & mounting bracket
-F #20AWG Stranded wire (6") & mtg. bracket |
Example : 437D-20-D operates on
48VDC, 20 second delay, #20AWG Stranded wire (6"), no terminals |
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