Omega Products SSR330 Installation Manual

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SSRDC100V, SSR330, SSR660,

SSRINT660, SSR3PH660,

SSRDIN660 Series

Solid State Relays

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User’s Guide

Servicing North America:

USA: One Omega Drive, Box 4047

ISO 9001 Certified Stamford CT 06907-0047

Tel: [phone] FAX: [phone]
e-mail: [e-mail]

Canada: 976 Bergar

Laval (Quebec) H7L 5A1
Tel: [phone] FAX: [phone]
e-mail: [e-mail]

For immediate technical or application assistance:

USA and Canada: Sales Service: 1-800-826-6342 / 1-800-TC-OMEGA

®

Customer Service: 1-800-622-2378 / 1-800-622-BEST

®

Engineering Service: 1-800-872-9436 / 1-800-USA-WHEN

®

TELEX: 996404 EASYLINK: 62968934 CABLE: OMEGA

Mexico: En Espan˜ ol: [phone]-7803 e-mail: [e-mail]

FAX: [phone] [e-mail]

Servicing Europe:

Benelux: Postbus 8034, 1180 LA Amstelveen, The Netherlands

Tel: [phone] FAX: [phone]
Toll Free in Benelux: 0800 0993344
e-mail: [e-mail]

Czech Republic: Rude´ arma´dy 1868, 733 01 Karvina´ 8

Tel: [phone] FAX: [phone]
Toll Free: 0800-1-66342 e-mail: [e-mail]

France: 9, rue Denis Papin, 78190 Trappes

Tel: [phone] FAX: [phone]
Toll Free in France: 0800-4-06342
e-mail: [e-mail]

Germany/Austria: Daimlerstrasse 26, D-75392 Deckenpfronn, Germany

Tel: [phone] FAX: [phone]
Toll Free in Germany: 0800 639 7678
e-mail: [e-mail]

United Kingdom: One Omega Drive, River Bend Technology Centre

ISO 9002 Certified Northbank, Irlam, Manchester

M44 5BD United Kingdom
Tel: [phone] FAX: [phone]
Toll Free in United Kingdom: 0800-488-488
e-mail: [e-mail]

OMEGAnet®Online Service Internet e-mail

www.omega.com [e-mail]

It is the policy of OMEGA to comply with all worldwide safety and EMC/EMI regulations that
apply. OMEGA is constantly pursuing certification of its products to the European New Approach
Directives. OMEGA will add the CE mark to every appropriate device upon certification.

The information contained in this document is believed to be correct, but OMEGA Engineering, Inc. accepts
no liability for any errors it contains, and reserves the right to alter specifications without notice.
WARNING: These products are not designed for use in, and should not be used for, patient-connected applications.

PRECAUTIONS

A number of essential safety precautions must be observed in the installation and use of a Solid
State Relay (SSR).

The SSR’s should be installed and serviced by qualified technicians familiar with high voltage and
current circuits. Note that an SSR has a small leakage current when the contacts are “open”.
Normal failure condition is contacts “closed”. A special Fast Blowing I

2

T fuse and a mechanical
interrupt switch are recommended in the load circuit. In certain applications a mechanical inter­rupt switch should be installed in the control circuit.

GENERAL DESCRIPTION

The OMEGA®Solid State Relays (SSR’s) are a series of normally open, solid state switching devices
with no moving parts, capable of tens of millions of cycles of operation. They are designed to con­trol 120V, 240V, 440V, or 660V alternating current (VAC), and provide zero voltage switching and
4000VAC isolation between the load terminals and the control signal. A control signal causes the
SSR to switch the AC load ON or OFF just as a conventional mechanical contact switch does but
without the problems associated with moving contact relays, such as corrosion, pitting, arcing
radio frequency interference (RFI) and bounce.

FINNED HEAT SINKS (FHS)

To dissipate the heat developed naturally in an SSR due to a nominal voltage drop across the
device, the panel mount SSR’s must be mounted on a Finned Heat Sink (FHS), or on a metal plate
of adequate size (see Derating Curves on page 8). The Finned Heat Sinks (FHS) are anodized, alu­minum fabrications which come complete with tapped mounting holes. Use with thermally con­ductive compound (Omega part number OT-201) for panel mount SSR’s. The DIN rail mount SSR’s
come with integrated heatsinks. It is advisable to install an SSR where the ambient temperature is
relatively low because its current-switching rating is decreased as its temperature increases. For
SSR’s with integral heatsinks leave at least 1 inch (25mm) of space between relays and space above
and below each heatsink equivalent to the height of the unit.

FUSE PROTECTION

The load side of the SSR’ should be protected by a Semiconductor I2T fuse. Although a semicon­ductor relay is designed for virtually countless operation cycles, it can be destroyed by an over­voltage or a short circuit, unless protected adequately by a fast fuse.

Bussman or equivalent fuses should be used. Select a fuse with a current and voltage rating less
than the maximum rating of the relay. It is essential that a proper semiconductor (I

2

T) fuse is used.

SSR’s normal failure mode on overloaded circuits is closed contacts (ON-STATE).

LEAKAGE CURRENT

In the OFF state, all SSR’s have a small leakage current through their contacts, typically 5 to 15 mil­liamperes (mA). As a result, a voltage potential will always exsist on the LOAD SIDE, even where
the “contacts” are “open.” The voltage level is a function of the load resistance. In accordance with
E = IR, the voltage level equals leakage current times load resistance.

The voltage level will rise to FULL LINE VOLTAGE under NO LOAD (open circuit) or high resist­ance condition. Under normal operating conditions, however, it is very small. A 120-watt (W) load
has a resistance of 1 ohm. With “open contacts,” a leakage current of 15mA will cause 15mV across
the load (E = 15 mA x 1 ohm).

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AC Output Single Phase Relays

DC Control Specifications

Load Min Control Max Control Release
Model Line Voltage Current Voltage & Voltage & Voltage
Number Range (Vac) Range (Arms) Current Draw Current Draw (VDC)

SSR330DC10 24 to 330 Vac 0.05 to 10 4 Vdc/5.4 mA 32 Vdc/10 mA 1 Vdc 1 D 1
SSR330DC25 24 to 330 Vac 0.10 to 25 4 Vdc/5.4 mA 32 Vdc/10 mA 1 Vdc 1 D 1
SSR330DC50 24 to 330 Vac 0.10 to 50 4Vdc/3.5 mA 32 Vdc/8.0 mA 1 Vdc 1 D 2
SSR330DC75 24 to 330 Vac 0.10 to 75 4Vdc/3.5 mA 32 Vdc/8.0 mA 1 Vdc 1 D 2
SSR660DC50 24 to 660 Vac 0.10 to 50 4Vdc/3.5 mA 32 Vdc/8.0 mA 1 Vdc 1 D 2
SSR660DC75 24 to 660 Vac 0.10 to 75 4Vdc/3.5 mA 32 Vdc/8.0 mA 1 Vdc 1 D 2

AC Control Specifications

Load Min Control Max Control Release
Model Line Voltage Current Voltage & Voltage & Voltage
Number Range (Vac) Range (Arms) Current Draw Current Draw (VAC)

SSR330AC10 24 to 330 Vac 0.05 to 10 100 Vac/2.0 mA 280 Vac/19 mA 20 Vac 3 D 1
SSR330AC25 24 to 330 Vac 0.10 to 25 100 Vac/2.0 mA 280 Vac/19 mA 20 Vac 3 D 1
SSR330AC50 24 to 330 Vac 0.10 to 50 100 Vac/2.0 mA 280 Vac/19 mA 20 Vac 3 D 2
SSR330AC75 24 to 330 Vac 0.10 to 75 100 Vac/2.0 mA 280 Vac/19 mA 20 Vac 3 D 2
SSR660AC50 24 to 660 Vac 0.10 to 50 100 Vac/2.0 mA 280 Vac/19 mA 20 Vac 3 D 2
SSR660AC75 24 to 660 Vac 0.10 to 75 100 Vac/2.0 mA 280 Vac/19 mA 20 Vac 3 D 2

DC Control Specifications

Load Min Control Max Control Release
Model Line Voltage Current Voltage & Voltage & Voltage
Number Range (Vac) Range (Arms) Current Draw Current Draw (VDC)

SSRDIN660DC25 24 to 660 Vac 0.10 to 25 4 Vdc/3.5 mA 32 Vdc/8 mA 1 Vdc 2 F 3
SSRDIN660DC40 24 to 660 Vac 0.10 to 40 4 Vdc/3.5 mA 32 Vdc/8 mA 1 Vdc 2 G 3

AC Control Specifications

Load Min Control Max Control Release
Model Line Voltage Current Voltage & Voltage & Voltage
Number Range (Vac) Range (Arms) Current Draw Current Draw (VAC)

SSRDIN660AC25 24 to 660 Vac 0.10 to 25 100 Vac/9 mA 280 Vac/25 mA 20 Vac 4 F 3
SSRDIN660AC40 24 to 660 Vac 0.10 to 40 100 Vac/9 mA 280 Vac/25 mA 20 Vac 4 G 3

DC Control Specifications

Load Min Control Max Control Release
Model Line Voltage Current Voltage & Voltage & Voltage
Number Range (Vac) Range (Arms) Current Draw Current Draw (VDC)

SSRINT660DC50 48 to 660 Vac 0.10 to 50 4 Vdc/6 mA 28 Vdc/9 mA 1 Vdc 5 A 4
SSRINT660DC75 48 to 660 Vac 0.10 to 75 4 Vdc/6 mA 28 Vdc/9 mA 1 Vdc 5 B 4
SSRINT660DC100 48 to 660 Vac 0.10 to 100 4 Vdc/6 mA 28 Vdc/9 mA 1 Vdc 5 C 4

AC Control Specifications

Load Min Control Max Control Release
Model Line Voltage Current Voltage & Voltage & Voltage
Number Range (Vac) Range (Arms) Current Draw Current Draw (VAC)

SSRINT660AC50 48 to 660 Vac 0.10 to 50 100 Vac/5 mA 280 Vac/15 mA 20 Vac 5 A 4
SSRINT660AC75 48 to 660 Vac 0.10 to 75 100 Vac/5 mA 280 Vac/15 mA 20 Vac 5 B 4
SSRINT660AC100 48 to 660 Vac 0.10 to 100 100 Vac/5 mA 280 Vac/15 mA 20 Vac 5 C 4

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