shunt trip voltage release MX - 525 V 50Hz, 600 V 60Hz
undervoltage release MN - 110..130 V - 50/60Hz
undervoltage release MN - 208..277V 60Hz, 220..240V 50/60Hz
undervoltage release MN - 440..480V 60Hz, 380..415V 50/60Hz
undervoltage release MN - 525 V 50Hz, 600 V 60Hz