The Panasonic 30 Amp HE Power Relays offer excellent resistance to contact welding due to the pre-tension and kick-off mechanism. The 1 Form A passes TV-15 and the 2 Form A passes TV-10. The high-capacity, long life HE Power Relays have excellent surge resistance between the contacts and coil. The surge voltage is more than 10,000 V. Panasonic´s HE Power Relays are typically used in office and industrial equipment and home appliances.