Opto22 - Solid State Relays

Opto 22 builds the world's most reliable SSRs

You can count on us

Over 45 years' experience in every SSR
4,000 volts of optical isolation
UL recognized and most are CSA certified
Individually tested—twice
Guaranteed for life!

Scroll down to see manufacturers' part number cross-reference list.

See all SSRs
Download SSR product brochure.

Get the SSR data sheet

The data sheet includes part numbers and lots of information for choosing and using SSRs:

Tips for heater loads, single-phase, and 3-phase motor control
Sizing information and maximum current, including de-rating curves
Heatsink requirements
Mechanical relays vs. SSRs
Resistors for limiting control current and required for inductive loads, like solenoid control
SSRs in series for higher-voltage applications
Zero-crossing turn-on circuit
Testing for SSRs
Troubleshooting FAQ

Product Details

	Power Series SSRs offer a wide variety of voltage (110-575 volts) and current options (3-45 amps). AC series have a built-in snubber and zero-voltage turn-on; transient-proof models are available. DC series offer isolated DC control and are RoHS compliant. Models with LEDs are now available.
	Z Series SSRs are low-cost, 10 amp SSRs with tool-free quick-connect terminals.

	Printed Circuit Series SSRs mount on circuit boards and control up to 4 amps. MP series have a minimum footprint.
	P series are low profile.
	Heat Sink Series SSRs make installation easier with an integral heatsink.

Cross-Reference Product List

Guaranteed-for-life Opto 22 SSRs can be substituted in many cases for other manufacturers' SSRs.
The following list shows SSR part number matches and notes differences with other manufacturers' parts.

Opto 22	Crydom	Crouzet (Crydom)	Notes
120A10	A1210	--
120A25	A1225	--
240A10	A2410	84134001
240A25	A2425	84134011
240A45	A2450	84134021	Opto 22 rated at 45 A.
120D3	--	--	No cross
120D10	D1210	--
120D25	D1225	--
120D45	D1240	--	Opto 22 rated at 45 A.
240D3	--	--	No cross
240D10	D2410	84134000
240Di10	D2410	84134000	Opto 22 has LED indicator.
240D25	D2425	84134010
240Di25	D2425	84134010	Opto 22 has LED indicator.
240D30-HS	D2425	--	Opto 22 has integrated heatsink and is rated at 30 A.
240D45	D2450	84134020	Opto 22 rated at 45 A.
240Di45	D2450	84134020	Opto 22 has LED indicator and is rated at 45 A.
380D25	--	--	No cross
380D45	--	--	No cross
480D10-12	HD4812	--
480D15-12	--	--
480D25-12	HD4825	--
480D25-HS	HD4825	--	Opto 22 has integrated heatsink.
480D45-12	HD4850	--	Opto 22 rated at 45 A.
575D15-12	--	84134100	Opto 22 operating voltage 100-600 VAC, rated at 15 A.
575D45-12	HD6025	84134120	Opto 22 operating voltage 100-600 VAC, rated at 45 A.
575D30-HS	HD6025	84134110	Opto 22 has integrated heatsink, operating voltage 100-600 VAC, rated at 30 A.
575Di45-12	HD6050	--	Opto 22 has LED indicator, operating voltage 100-600 VAC, rated at 45 A.
MP120D2	--	--	No cross
MP120D4	MP120D3	GA8-6B02
MP240D2	--	GA8-6B02
MP240D4	MP240D3	GA8-6B02
MP380D4	MCX380D5	--	Opto 22 rated at 4 A.
P120D2	--	GA1-6B02
P120D4	--	GA1-6B02
P240D2	--	GA1-6B02
P240D4	--	GA1-6B02
Z120D10	EZ240D12	--	Opto 22 rated at 10 A.
Z240D10	EZ240D12	--	Opto 22 rated at 10 A.
DC60P	--	--	No cross
DC60MP	MPDCD3, MODC5	--
DC200P	--	--	No cross
DC200MP	MODC5A	--
DC60S3	DC60S3	--	Opto 22 rated at 3 A.
DC60S5	DC60S5	84134750	Opto 22 rated at 5 A.

NOTE: Although this information is accurate to the best of our knowledge as of July 2017, Opto 22 accepts no liability for the completeness or accuracy of the information nor for the consequences of any actions taken on the basis of the information provided. Please let us know if you find inaccuracies.