Siemens PLC Expansion Module, 35g Weight, 40mA Input Current - SIMATIC S7-1200 Series - 6ES7221-3BD30-0XB0 Use this PLC expansion module from Siemens to supercharge the capabilities of your automated setup. Its four inputs allow you to connect up to four devices, so it helps you juggle lots of jobs at once. Thanks to its rated input voltage of 24V DC, it's an ideal bit of kit for use in low-power networks. The assembly's plastic enclosure protects it from the abrasion and mechanical stress you'd expect in harsh industrial settings. Pair it with a switch-mode DIN rail power supply (668-0554) or the Siemens starter kit (236-8447) to put together a complete package for your manufacturing or automation system. Features & Benefits • Light weight of 35g minimises strain on your setup
• LED indicators for convenient status monitoring
• Compact dimensions of 62 (H) x 38 (W) x 21mm (D) for installation in tight spaces
• Low typical power loss of 1W means it's an energy-efficient choice Can I use this device in harsh industrial conditions? Yes. This product has a broad operating temperature range between -20°C and +60°C, so it can stand up to use in harsh environments.