1437463-6

Specialty Relays 

## **SCE Series, Specification Grade Discrete Plug-in, True Off-Delay Time Delay Relay** 

**CAUTION: If unit has not been energized for several months, apply operating voltage for 20 minutes prior to initial time delay.** 

## **Input Data @ 25°C** 

**Accuracy** — Repeat Accuracy — ±1 Overall Accuracy — ±5% **Reset Time** — 30 ms. min. **Relay Operate Time** — 30 ms. 

**Voltage** — See Ordering Information section for details 

**Power Requirement** — 750mW Transient Protection — 1,000V plus twice rated voltage for 0.1 ms 

## **Contact Data @ 25°C** 

## **Timing Specifications** 

**Arrangements** — 1 Form C (SPDT) and 2 Form C (DPDT) 

## **Environmental Data** 

## **Timing Modes** — 

True Off-Delay — Upon application of operating voltage (min. 100ms), output relay contacts transfer. When operating voltage is removed, the time delay period is initiated. At the end of the delay period, output relay contacts release. If operating voltage is reapplied prior to expiration of the delay period, the delay will be cancelled and output relay contacts will remain transferred. 

**Temperature Range** — Storage — -40°C to +85°C Operating — -30°C to +65°C 

**Rating** — 

1 Form C — 10A @ 120/240VAC, resistive; 1/3 HP @ 120VAC; 345VA @ 120VAC; 1/4 HP @ 240VAC; 275VA @ 240VAC. Same polarity. 2 Form C — 5A @ 28VDC or 120/240VAC, resistive; 1/6 HP @ 120/240VAC; 200VA @ 120/240VAC. Same polarity. 

## **Mechanical Data** 

**Mounting/Termination** — 8-pin octal plug fits either 27E122 or 27E891 (snap-on) socket (order separately) **Weight** — 4 oz. (112g) approximately 

## **Product Facts** 

- n **True Off-Delay timing modes** 

**Timing Ranges** — 0.1 to 3 / 0.5 to 15 / 1 to 30 / 4 to 120 / 10 to 300 sec.; 0.33 to 10 min. 

**Expected Mechanical Life** — 10 million operations 

- n **Six time delays from 0.1 sec. to 10 min.** 

**Expected Electrical Life** — 200,000 operations, min., at rated resistive load 

**Timing Adjustment** — Knob adjustment — Internal potentiometer with external knob adjustment. Maximum time calibrated with +10%, – 0% of values shown below at rated voltage, at 68°F. Fixed time — internal fixed resistor. 

- n **10A SPDT or 5A DPDT output contacts** 

**Initial Dielectric Strength** — Between Terminals and Case and relay contacts and active circuitry — 1,480VAC for one minute 

- n **Excellent repeat accuracy — typically better than ±1%** 

- n **8-pin octal plug.** 

- n **File E15631, File LR51332** 

Users should thoroughly review the technical data before selecting a product part number. It is recommended that user **Ordering Information** (All "X's" must be included to complete part number) also seek out the pertinent approvals files of the agencies/laboratories and **SCE R X 2 2 A C A** review them to ensure the product meets the requirements for a given application. **| | | |** 

## **R** AL **R** @ 

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SCE R X 2 2 A C A<br>| | | |<br>Series SCE Output Rating Output  Timing Range<br>True W = 10A  (SPDT) 1 = SPDT (W) A =0 .1 to 3 sec.<br>Off-delay X = 5A (DPDT) 2 = DPDT (W) B = 0.5 to 15 sec.<br>Timer C = 1 to 30 sec.<br>||||||| ||||||| E = 4 to 120 sec.<br>Agency Operating G = 10 to 300 sec.<br>Recognition Mode L = 0.33 to 10 min.<br>R = UL recognized 2 = True  |||||||||||<br>Off-Delay Operating Voltage<br>(+10%, –15%) ||||||||||||||<br>A = 120VAC, 50/60<br>Timing Adjustment<br>Hz. / 125VDC<br>A = Knob Adjust<br>E = 24VAC, 50/60 Hz. F = Fixed Times –Specify<br>/ 24VDC<br>time delay in seconds<br>F = 48VAC, 50/60 Hz.<br>per the following<br>/ 48VDC<br>examples:<br>XF9.000 = 9 sec.<br>XF99.00 = 99 sec.<br>XF999.0 = 9999 sec.<br>XF1000 = 1000 sec.<br>**----- End of picture text -----**<br>


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(50) (15) (83)<br>ars 601) a e<br>(50)<br>4 yy<br>Outline Dimensions<br>Wiring Diagrams (Bottom Views)<br>4 @5 4 5<br>43 9 @6 A3 9 ea<br>UT 2 Q 7input INPUT 2 Q 7<br>+ ‘ 1  2 + f 1 8 ;<br>Fixed Time Fixed Time<br>Or Knob Adjust Or Knob Adjust<br>**----- End of picture text -----**<br>


**Authorized distributors are likely to stock the following:** None at present. 

12–36 

Catalog 5-1773450-5 Revised 3-13 

USA: +1 800 522 6752 For additional support numbers Asia Pacific: +86 0 400 820 6015 please visit www.te.com UK: +44 800 267 666 

Dimensions are shown for Dimensions are in millimeters reference purposes only. unless otherwise specified. Specifications subject to change. 

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