SIMATIC S7-400, POWER SUPPLY PS 405: 4A, DC 24/48/60V, DC 5V/4A, ATEX APPROVAL MARK SIMATIC S7-400, POWER SUPPLY PS 405: 4A, DC 24/48/60V, DC 5V/4A, ATEX APPROVAL MARK SIMATIC S7-400 Power supply module PS 405 4A