SOR (Shunt Opening Release - YO) - A device that commands a circuit breaker to open an electrical circuit. - Available in a variety of operating voltages, but in Thailand it is marketed at 220VAC.
ABB
ABB Front Flange-FLD XT5 F/P (Padlock)
ABB AUX-C 1Q+1SY 250Vac/dc XT1...XT6 F/P
ABB XT1..XT4 Shunt Opening releases 220...240Vac
ABB Undervoltage releases XT5-XT6 220V
ABB AUX-C 3Q+1SY 250Vac/dc XT2..XT6 F/P
ABB E1.2..E6.2-XT7-XT7M 220..240VAC/DC Undervoltage
ABB Front Flange-FLD XT6 F/P (Padlock)
ABB Mechanical Interlock XT3
ABB Rotary-RHE XT5 Normal Transmitted
ABB RHE XT7 F/W STAND. RETURNED
ABB Motor Operator 220v. XT1,XT3
ABB Electronic time Delay T1..T6-XT1..XT4 220..250Va
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