388ACPSOX-1

## 388 Series - Time Delay Relay 2PDT, 3PDT, 12 Amp 

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The 388 timers are square base, bladed versions of time delay relays. On delay, offdelay and interval functions are all available with either AC or DC inputs. On delay and interva products can have up to three poles. Off delays have two poles. The timing circuit is oscillator based. Fixed time and externally adjustable versions. Both socket and flange mount versions are available. 

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GENERAL SPECIFICATIONS (@ 25° C) “<br>:<br>Timing: ; Sal en<br>FunctionsTime Range Available On-delay,Up a 180Off-delay, minutesInterval ol<br>Timing Adjustment Knob or external R wes<br>ierning Repeatability 0.1% s z<br>(CoreInputeset Pulse Length Time ant voltagemaximum and minimum temperature)| 150mS50mS Eia<br>ContactContacts: : &.CB<br>Contact Configuration 2PDT, 3PDT Bee<br>Contact Material Silver Alloy | ‘ we<br>28VDC120/  Deve240VACResistiveResistive_ Ames12 Amp 12 Amp \‘SaNly pee i<br>MinimumContactotor  Contct Load _ 500mW Knob Adjustable2 Be es3 &<br>Resistance, Initial 100 milliohms max @ 6VDC, 1A @ ok<br>Coil: "a<br>Coils Available AC and DC all<br>Nominal Coil Power 2.75VA 2W =<br>Transientnput VoltageProtectionTolorance -; ° fe) Yesof nomina Externally Adjustablej<br>Reverse Polarity Protection Yes<br>wd Contraco 388TD Wire Diagran<br>AcrossDielectricBetween OpenStrength:Mutally CootsInsulated Points 1500Vrms500Vrms On Delay<br>Insulation Resistance 1,000 Mohms min @ 500VDC ; -_ .<br>Temperature: 4 S S<br>StorageOperating -40-20 toto  55°C85°C  (-4(-40 toto 131°)185°F) hy a -<br>Life Expectancy: ; 7 oO8 9<br>Electrical (full load operations) 100,000<br>Mechanical (no load operations) 10,000,000 A B<br>RrouniingMiscellaneous: Position An + i “oeInput T .<br>Matingnclosureocket é aqueSk-SQB11-DSPolycarbonate<br>Weight Yh Goz (115 grams) Off Delay - Extemal<br>Adjustable<br>1 2 3<br>Ei<br>4 5 6<br>rc<br>7 8 9<br>oO<br>A8<br>o TInput T<br>www.struthers-dunn.com (843) 346-4427 Off Delay i April 2018<br>**----- End of picture text -----**<br>


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April 2018 

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Max Outline Dimensions<br>Dimensions Shown in inches & (millimeters)<br>Flange Mount Externally Adjustable Knob Adjustable<br>2.15 1.87<br>2.15 azo) ro (47.6)<br>(54.6) | 2.89<br>em = 25 = ng co<br>de TerminalX .032 = = Typical<br>1.39 > Clea liliaio<br>(35.3) E atts J St a= a7)<br>i 1.51 1 7<br>a i ii 1.39<br>(38.4) = (35.3) Slee<br>- (38.4)<br>-<br>**----- End of picture text -----**<br>


388TD Part Number Chart 

|||Nominalinputvoltage|Timingrange||
|---|---|---|---|---|
||388ACPSOX-1|120VAC|0.1 to 10seconds|20,000ohmspersecond|
||388ACPSOX-2<br>388CPSOX-1<br>388CPSOX-2<br>On delay surface|120VAC<br> mountflange style||20,000ohmspersecond<br>16,000ohmsper second<br>16,000ohmsper second|
||38BACQSOX-1|||20,000ohms persecond|
||388ACQSOX-2|120VAC|1.0to 120 seconds|20,000ohms persecond|
||388CQSOX-2<br>Offdelay plug-in|||16,000ohmsper second|
|April2018|388CPSRX-22<br>2018|www.struthers-dunn.com||16,000 ohms perseconds<br>(843)346-4427|



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