The Siemens 3UG4622-1AA30 is a state-of-the-art digital monitoring relay designed for precise current monitoring applications. This compact device, with a width of just 22.5 mm, is engineered to monitor current levels from 0.05 to 10 A for both AC and DC circuits, ensuring versatility across a range of industrial settings. It operates on a supply voltage of 24 V AC/DC and is suitable for frequencies between 50 to 60 Hz.
Crafted for reliability, the 3UG4622-1AA30 features an intuitive LCD display for clear readouts and easy configuration. The unit boasts an adjustable response delay time ranging from 0.1 to 20 seconds, allowing for customisation to specific system requirements. Additionally, it offers a hysteresis setting from 0.01 to 5 A, providing flexibility in managing the precision of current thresholds.
The relay is equipped with one change-over contact, which can be utilised with or without a fault buffer, and it utilises screw terminals for secure and straightforward electrical connections. The device's robust design includes a surge voltage resistance rated at 4 kV and an insulation voltage up to 690 V for overvoltage category III with a degree of pollution 3, ensuring durability and resilience in challenging environments.
With a mechanical service life of typically 10 million switching cycles and an electrical endurance of 100,000 cycles at AC-15 at 230 V, the Siemens 3UG4622-1AA30 is built to last. Its compact dimensions, coupled with snap-on mounting, make it an ideal choice for space-constrained installations without compromising on performance.
This digital monitoring relay is a successor to the 3UG3522-1AC series and continues Siemens' legacy of delivering high-quality, reliable monitoring solutions for industrial control systems. Whether it's for machinery, plant engineering, or process automation, the 3UG4622-1AA30 is a superb choice for professionals seeking precise current monitoring capabilities.