Solid-State Relays

Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • www.opto22.com

SALES 800-321-6786 • 951-695-3000 • FAX 951-695-3095 • sales@opto22.com • SUPPORT 800-835-6786 • 951-695-3080 • FAX 951-695-3017 • support@opto22.com

© 2006–2014 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.

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Opto 22 SSRs for controlling single-phase motors are shown in

the following tables:

Solid-State Relays in Series

In applications requiring higher voltage, two Opto 22 SSRs

may be operated in series for double the voltage rating. The

built-in snubber in each SSR assures proper voltage sharing of

the two SSRs in series. In the following diagram, two 240-volt,

45-amp SSRs are connected in series for operation on a 480-

volt line. The control is shown with a parallel hook-up but it

should be noted that a serial connection can also be

implemented.

Lamp Loads

Since all Opto 22 AC output SSRs use zero-voltage turn-on, they

are ideal for driving incandescent lamps, because the initial

inrush current into a cold filament is reduced. The life of the

lamp is increased when switched by a zero-voltage turn-on SSR.

The following table is a guide to selecting an Opto 22 SSR for

switching a given incandescent lamp.

120-Volt Single-Phase

Non-Reversing Motors

SSR Model

MOTOR RATING

P or MP120D2

1 Amp

Z120D10

1/4 HP

120D3

1-1/2 Amp

P or MP120D4

1-1/2 Amp

120D10 or 120A10

1/4 HP

120D25 or 120A25

1/3 HP

120D45

3/4 HP

240-Volt Single Phase

Non-Reversing Motors

SSR Model

MOTOR RATING

P or MP240D2

1 Amp

Z240D10

1/4 HP

240D3

1-1/2 Amp

P or MP240D4

1-1/2 Amp

240D10 or 240A10

1/3 HP

240D25 or 120A25

1/2 HP

240D45

1-1/2 HP

120-Volt Single-Phase

Reversing Motors

SSR Model

MOTOR RATING

P or MP240D2

1 Amp

Z240D10

1/4 HP

240D3

1-1/2 Amp

P or MP240D4

1-1/2 Amp

240D10 or 240A10

1/4 HP

240D25 or 120A25

1/3 HP

240D45

3/4 HP

240-Volt Single-Phase

Reversing Motors

SSR Model

MOTOR RATING

480D10-12

1/4 HP

480D15-12

1/4 HP

120 Volt Lamps

SSR CURRENT RATING

LAMP RATING

2-Amp

100 Watt

4-Amp

400 Watt

10-Amp

1 Kilowatt

25-Amp

2 Kilowatt

45-Amp

3 Kilowatt

240 Volt Rating

SSR CURRENT RATING

LAMP RATING

2-Amp

200 Watt

4-Amp

800 Watt

10-Amp

2 Kilowatt

25-Amp

4 Kilowatt

45-Amp

6 Kilowatt