When are Solid State Relays a good choice?

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Accepted Answer

Solid State Relays (SSRs) are particularly interesting when special requirements regarding environment, switching frequency or signal quality apply:

Robust against mechanical stress: SSRs are resistant to vibration and shock.
Frequent switching cycles / fast switching: Without mechanical contacts, SSRs are ideal for applications with many switching operations or high switching frequency.
Rare switching operations: Even with very low switching frequency, SSRs remain reliable since no contact corrosion can occur.
Very long service life: With no moving parts, SSRs hardly wear out and achieve a much longer lifetime than electromechanical relays.
Low-noise or silent operation: They operate completely noiselessly and without contact sparks.
Zero-cross switching in AC: Many SSRs switch at the zero-crossing of the AC voltage and thereby reduce voltage spikes, especially with inductive loads. Our CSS-Z* and R10-Z1Z* series feature zero-cross switching.

Note: At higher loads, SSRs generate heat. Depending on the application, suitable cooling or mounting on a heat sink is required.

Conductor cross section cage clamp	0.75 … 2.5 mm²
Conductor cross section screw terminal	0.34 ... 2.5 mm²
Housing material	PA
Ingress Protection	IP 20
Mounting	TH35 (EN 60715)
Operation temperature	-30 … 70 °C
Pick-up time	1/2 Cycle +1 ms
Release time	1/2 Cycle +1 ms
Storage temperature (no ice)	-30 … 85 °C
Weight	30 g

SSR-Typ	TRIAC
Inrush current	80 A, 10 ms
Maximum voltage drop	1.2 V AC
Number of contacts	0 CO
Output type	TRIAC
Output voltage range	48 ... 280 V AC
Rated current	2 A
Recommended minimum contact load	20 mA / 5 V
Residual current	1.5 mA
Type	Synchronized zero

Approvals	UKCA,CE,EAC
Standards	EN 62314

CRINT-C118/DC220-240V