ABB’s UPS modules can be online-swapped, ie, removed or inserted, without risk to the critical load and without the need to power down or transfer to the mains. This procedure is simple and quick to perform and introduces no risk for system operation. Each module can be individually switched off before removing it from the system. This makes the service safe for the technician and ensures absolutely no disturbance to the system. As the same modular UPS can be used across different applications and load segments, the service technicians do not need to be educated on several different platforms, but can apply the same practices and procedures on all UPS equipment.