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What does this symbol represent? It is connected to a contactor.

enter image description here

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    \$\begingroup\$ This symbol isn't standard and makes little sense with the "diode + line" symbols. Someone made it up and it is that person's task to explain what it is. \$\endgroup\$ – Bimpelrekkie Mar 26 '19 at 7:29
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    \$\begingroup\$ Soft starters are made with triac(s)... \$\endgroup\$ – Huisman Mar 26 '19 at 7:51
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    \$\begingroup\$ @krishnalalkl Why are you shouting? If you want to let everyone know what it is, then write an answer. \$\endgroup\$ – HandyHowie Mar 26 '19 at 7:58
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    \$\begingroup\$ OK, using Google to search for "soft starter symbol" and looking at images tab: Hmm, in these symbols the diodes do look like Thyristors instead of diodes with a weird line. So again: this is not a standard symbol. The thyristors are drawn in the wrong way. It was drawn by someone who didn't stick to the general consensus regarding thyristor symbols. Yes it's a detail but getting your details right defines the difference between pro and amateur (at least in my opinion). \$\endgroup\$ – Bimpelrekkie Mar 26 '19 at 8:05
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    \$\begingroup\$ @krishnalalkl Your "THIS IS A STANDARD SYMBOL FOR A SOFT STARTER" is all capitals and therfore shouting. You're using a comment now, to write an answer (in the proper way) use the textbox below and press the "Post Your Answer" button. \$\endgroup\$ – Bimpelrekkie Mar 26 '19 at 8:07
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It represents a softstarter (the components shown inside are SCR - Silicon Controlled Rectifiers). Obs: This is not a standard IEC symbol.

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The symbol represents a triac, of which the gates of the thyristors are drawn weird. (see other remarks).
It is part of a softstarter, a the softstarter also contains electronics for controlling the gate(s) of the triac(s).

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The symbol represents a soft starter, which is used for smooth starting and stopping of the motor.

Here it shows 2 SCR devices connected in inverse parallel connection.

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    \$\begingroup\$ Maybe. Those are not standard thyristor symbols. Proper symbols have the gate connection entering at the cathode. It might be a lazy draftsman's symbol. \$\endgroup\$ – Transistor Mar 26 '19 at 8:21

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