Specification No.: Rev. 11/12/18

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ext 2808

Page 1

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Mounting on Panel

• Locate the panel section on which the EL will be mounted. Panel mount surface

must provide adequate heat sinking capability, uncoated, clean, ﬂat (0.004 in/in recommended)

and preferably aluminum.

• Be sure that thermal pad is pre-installed before installing over the panel.

• EL series SSR mounting slots have a diameter of 0.2 in (5.0 mm). Two screws are needed (not

included) to mount the EL onto panel. Choose screw length considering the mounting surface hole

depth and that the SSR ﬂange thickness is 0.125 in (3.2 mm).

• Before applying full torque tighten down both screws until they contact the baseplate. Then,

tighten them to 10 lb-in (1.13 Nm).

Terminals

Quick Connect type. Input: 3/16” x 0.032”. Output: 1/4” x 0.032”

Transient Protection

Transients are common on AC power lines, and in extreme cases, may pose a risk for the proper

operation and reliability of the SSR and its load.

The load which the SSR controls may also generate transients itself. Therefore, inclusion of transient

protection for the SSR is highly recommended.

|EL SERIES

AC & DC OUTPUT SOLID STATE RELAYS

MOUNTING INSTRUCTIONS

ORDERING OPTIONS

WIRING DIAGRAM

This installation sheet includes detailed mounting and wiring instructions which apply for most EL series SSRs.

Be sure to visit the product series’ datasheet available at the Sensata website to complement this information. If you have questions or need additional information please contact Sensata Tech Support.

Please read all mounting instructions before using your AC or DC Output Panel Mount Solid State Relay (SSR).

INSTALLATION GUIDE

Choose one of the two mounting options and follow the instructions.

Mounting on Heat Sink

• Select adequate heat sink (see thermal derating curves in product series’

datasheet).

• Be sure that thermal pad is pre-installed before installing over the heat sink.

• EL series SSR mounting slots have a diameter of 0.16 in (4.0 mm). Two screws are

needed (not included) to mount the EL onto heat sink (See ﬁg. 1). Recommended

screw size is 8-32 (UNC standard) or M4 (metric).

• Before applying full torque tighten down both screws until they contact the

baseplate. Then, tighten them to 9.0-10.0 lb-in (1.0-1.13 Nm).

• For optimal thermal performance heat sink ﬁns should be oriented vertically to

promote natural convection airﬂow.

Series

Operating Voltage

240A: 24-280 VAC

100D: 3-100 VDC

Rated Load Current

5: 5 Amps

10: 10 Amps

20: 20 Amps (AC Output Only)

30: 30 Amps (AC Output Only)

Switching Type

Blank: Zero Voltage Turn-On

R: Instantaneous Turn-On (AC Output only)

Control Voltage

05: 4-8 VDC

12: 10-14 VDC

24: 21-27 VDC

Termination

Blank: Standard Quick Connect

H: 90º bent Quick Connect

(30 Amps AC Output and 10 Amps DC Output only)

Overvoltage Protection

Blank: Not included

P: Included (30 Amps, Zero Voltage models only)

EL 240A 30 R - 05 N P

Required for valid part number

For options only and not

required for valid part number

fig. 1 EL Series SSR

mounted on heat sink

4 (–)3 (+)

Load

1 2 ( )

( )

4 (–)3 (+)

Load

1 2 ( )

( )

Load

4 (–)3 (+)

(+)

1 2

(–)

4 (–

–

)3 (+)

(+)

()

Load

AC Output

(A)

DC Output

(B)

GENERAL NOTES

(A)

Load can be wired to either terminal 1 or terminal 2. Proper polarity must be observed for the DC control

power supply with terminal 3 being positive with respect to terminal 4.

(B)

Inductive loads should be diode suppressed to prevent damage to the relay

Internal transient protection is standard in certain Crydom SSR models, and optionally available in others.

The user may also install transient protection external to the SSR for additional protection.

An inductive load will produce harmful transient voltage when it is turned off. The more perfect the switch,

the larger the transient voltages. The MOSFET output is so nearly ideal switch that the transient voltages

produced by seemingly “non-inductive” loads can cause damage if not suppressed. Diodes should be fast

recovery type with PIV rated greater than supply voltage.

(B)

Important Considerations

Be sure to use input and output voltages within operating ranges.

LED indicates only input status. It does not represent output status.