12–36

Specialty Relays

Catalog 5-1773450-5

Dimensions are shown for

Dimensions are in millimeters

USA: +1 800 522 6752

For additional support numbers

Revised 3-13

reference purposes only.

unless otherwise specified.

Asia Pacific: +86 0 400 820 6015

please visit www.te.com

Specifications subject

UK: +44 800 267 666

www.te.com

to change.

SCE Series, Specification Grade Discrete Plug-in,

True Off-Delay Time Delay Relay

SCE

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Series SCE

True

Off-delay

Timer

R

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Agency

Recognition

R = UL recognized

2

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Operating

Mode

2 = True

Off-Delay

A

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Operating Voltage

(+10%, –15%)

A = 120VAC, 50/60

Hz. / 125VDC

E = 24VAC, 50/60 Hz.

/ 24VDC

F = 48VAC, 50/60 Hz.

/ 48VDC

C

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Timing Range

A =0 .1 to 3 sec.

B = 0.5 to 15 sec.

C = 1 to 30 sec.

E = 4 to 120 sec.

G = 10 to 300 sec.

L = 0.33 to 10 min.

A

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Timing Adjustment

A = Knob Adjust

F = Fixed Times –Specify

time delay in seconds

per the following

examples:

XF9.000 = 9 sec.

XF99.00 = 99 sec.

XF999.0 = 9999 sec.

XF1000 = 1000 sec.

X

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Output Rating

W = 10A (SPDT)

X = 5A (DPDT)

2

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Output

1 = SPDT (W)

2 = DPDT (W)

1.97

(50)

1.97

(50)

.60

(15)

3.25

(83)

Product Facts

sec. to 10 min.

output contacts

accuracy — typically better

than ±1%

CAUTION: If unit has not been

energized for several months,

apply operating voltage for 20

minutes prior to initial time

delay.

Timing Specifications

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 con-

tacts will remain transferred.

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.

Timing Adjustment —

Knob adjustment — Internal poten-

tiometer with external knob adjustment.

Maximum time calibrated with +10%, –

0% of values shown below at rated volt-

age, at 68°F.

Fixed time — internal fixed resistor.

Accuracy —

Repeat Accuracy — ±1

Overall Accuracy — ±5%

Reset Time — 30 ms. min.

Relay Operate Time — 30 ms.

Contact Data @ 25°C

Arrangements — 1 Form C (SPDT)

and 2 Form C (DPDT)

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.

Expected Mechanical Life —

10 million operations

Expected Electrical Life — 200,000

operations, min., at rated resistive load

Initial Dielectric Strength —

Between Terminals and Case and relay

contacts and active circuitry —

1,480VAC for one minute

Input Data @ 25°C

Voltage — See Ordering Information

section for details

Power Requirement — 750mW

Transient Protection — 1,000V plus

twice rated voltage for 0.1 ms

Environmental Data

Temperature Range —

Storage — -40°C to +85°C

Operating — -30°C to +65°C

Mechanical Data

Mounting/Termination — 8-pin

octal plug fits either 27E122 or 27E891

(snap-on) socket (order separately)

Weight — 4 oz. (112g) approximately

Authorized distributors are likely to stock the following:

None at present.

R

R

Outline Dimensions

Wiring Diagrams (Bottom Views)

Fixed Time

Fixed Time

Or Knob Adjust

Or Knob Adjust

Users should thoroughly review the

technical data before selecting a product

part number. It is recommended that user

also seek out the pertinent approvals

files of the agencies/laboratories and

review them to ensure the product meets

the requirements for a given application.