Product Description
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| Product Information | Resources |
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| Specifications |
| Product Attribute | Attribute Value |
| Mounting Type | Socketable |
| Relay Type | Solid State Relay |
| Function | Interval, On-Delay |
| Circuit | DPDT (2 Form C) |
| Delay Time | 0.3 Sec ~ 3 Sec |
| Contact Rating @ Voltage | 10A @ 250VAC/30VDC |
| Voltage - Supply | 12VDC |
| Termination Style | Plug In, 8 Pin (Octal) |
| Timing Adjustment Method | Hand Dial |
| Timing Initiate Method | Input Voltage |
| Series Features |
| 339B Plug-In Adjustable Time Delay Relay |
| Series Description: The 339B is a solid-state TDR with octal plug-in base that maintains excellent repeat accuracy despite wide voltage and temperature variations even after long periods of down-time. The 339B has six dial selected ranges from fractions of a second to as long as 10 hours and selectable on-delay or interval timing modes. Fixed timing units are available upon request. |
| Series Operation: Timing begins when the start switch is closed. This starts an oscillator which runs at a frequency determined by the time setting. A fixed number of counts from the oscillator determines the end of the time cycle. The time required to accomplish this depends on the oscillator frequency. During timing, a LED located on the dial face blinks. For the first ten percent of the cycle, the LED repeatedly blinks once followed by a pause, for the second 10%, it blinks twice and so on indicating the cycle progress. It flashes rapidly and continuously after time out. ON-DELAY MODE: At time out, the built-in relay transfers its contacts. These contacts remain transferred until the start switch is opened or power is removed by some other means. The 339 then resets and is ready for another cycle. INTERVAL MODE: When timing begins, the built-in relay transfers its contacts. The contacts remain transferred until time out. The timer will not start again until the start switch is opened or power is removed by some other means. The 339 then resets and is ready for another cycle. |
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