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m.Alin
m.Alin
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Calculating max wattage load for phototriacopto-triac

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Brian Low
Brian Low
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Calculating max wattage load for Solid State Relayphototriac

Are there any guidelines for SSRs?

Do the guidelines differ depending on resistive/inductive/reactive loads?

For example, the Vishay VO2223A is rated up to 1A. At 110V it seems it can switch up to a 1 A x 110V = 110 watt load. I saw some training material that indicated only up 22W load. Is this derating for safety? Is it to cover startup current draws?

I'd like to independently switch several AC devices: 50W heater, 23W CFL, 4W water pump.

Calculating max wattage load for Solid State Relay

Are there any guidelines for SSRs?

Do the guidelines differ depending on resistive/inductive/reactive loads?

For example, the Vishay VO2223A is rated up to 1A. At 110V it seems it can switch up to a 1 A x 110V = 110 watt load. I saw some training material that indicated only up 22W load. Is this derating for safety? Is it to cover startup current draws?

Calculating max wattage load for phototriac

Are there any guidelines?

Do the guidelines differ depending on resistive/inductive/reactive loads?

For example, the Vishay VO2223A is rated up to 1A. At 110V it seems it can switch up to a 1 A x 110V = 110 watt load. I saw some training material that indicated only up 22W load. Is this derating for safety? Is it to cover startup current draws?

I'd like to independently switch several AC devices: 50W heater, 23W CFL, 4W water pump.

Source Link
Brian Low
Brian Low
  • 213
  • 1
  • 3
  • 7

Calculating max wattage load for Solid State Relay

Are there any guidelines for SSRs?

Do the guidelines differ depending on resistive/inductive/reactive loads?

For example, the Vishay VO2223A is rated up to 1A. At 110V it seems it can switch up to a 1 A x 110V = 110 watt load. I saw some training material that indicated only up 22W load. Is this derating for safety? Is it to cover startup current draws?