ATC 339B-359-Q-2-X 339B Plug-In Adjustable Time Delay Relay 6 Ranges

ATC, 339B-359-Q-2-X, 339B Plug-In Adjustable Time Delay Relay Six Dial-Selected Ranges (.3 or 3 SEC, MIN, HR), Voltage 120 VAC, 50/60 Hz, On-Delay, Interval Mode, Standard

Features:

• Six dial-selected ranges (.3 or 3 SEC, MIN, HR)
• Cycle Progress Indication
• High Accuracy
• Multiple Timing Modes
• FM Approved
• CSA Approved
• UL Recognized
• CE Approved
• Fixed Timing Units available to prevent adjustments and increase safety

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.

Wide Choice of Ranges

In addition to the short ranges expected of an electronic TDR, the 339 is comes with ranges as long as 10 hours.An unusually versatile timer, the 339 has six dial-selected ranges – from 0.3 seconds to 3 hours. A single 339 model thus accommodates the needs of a wide range of applications, allowing theuser to select easily and precisely-an appropriate range to permit optimum setting accuracy. The dial face automatically displays the selected range.

Cycle Progress Indication

The 339’s LED annunciator provides a unique and effective method of cycle progress indication. Off before timing, the LED blinks at an ever-increasing rate as the cycle progresses; once every 3-1/2 seconds during the first 10% of the cycle, twice during the second 10%, and so on. At time-out, the LED stays on constantly, pulsing at a high rate.

High Accuracy

The 339’s timing circuit is not a simple RC circuit, but includes counting technology along with a stable oscillator to provide repeatable time delays.

Multiple Timing Modes

339 can be used for either on-delay or interval timing operation. The timing mode is selectable by a switch on the 339 housing. 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.

For more information, please see Data Sheet

Technical Details

Range	Six dial-selected ranges (.3 or 3 SEC, MIN, HR)
Minimum Setting	3% of range, except 75 mSEC on 0.3 SEC and 1.0 SEC ranges.
Load Relay
Type	DPDT 10 AMPS resistive at 30 VDC or 250 VAC (or less) 1/8 HP at120 VAC
Life	10 million operations with no load 100,000 operations with: 10 AMPS at 30 VDC (or less) 10 AMPS at 250 VAC (or less)
Contact Material	Silver Nickel
Temperature Rating	0° to 140°F (-17° to 60°C)
Mounting	Plug-in octal base; mounts in any position with retaining clips.
Power Requirements	95 – 132 VAC, 50/60Hz Inrush – .4A Running – .025
Repeat Accuracy	Varies as a function of line voltage and temperature but not of reset time ±0.5% at constant temperature and voltage (or ±15 mSEC whichever is greater) ± 1%* at constant voltage and full temperature range (or ± 25 mSEC whichever is greater) ±1.5%* at constant temperature and full voltage range (or ±25 mSEC, whichever is greater) ± 2%* over full voltage and temperature range (or ± 30 mSEC, whichever is greater) *Variations of line voltage must be within 95 and 132V of temperature between -17° and 60°C (0° and 140°F)
Recycle Characteristics	The timer can be used as a pulse generator with L1 power wired though its NC contacts. The pulse will be 35 mSEC to 90 mSEC long.(40 mSEC typical pulse.) 0 to 20 mSEC power interruption; Guaranteed no reset 20 mSEC to 90 mSEC; it may reset.(40 mSEC typical reset) Over 90 mSEC guaranteed to reset. The TDR will reset properly and not start timing when subjected to an open start switch leakage of 1.5 mA or less. (Prox switch and Triac drive applications)
Weight	2.5 oz. (70 g)