Siemens 3UG4621-1AW30 Digital Current Monitoring Relay
Siemens 3UG4621-1AW30 digital relay monitors AC/DC current (2-500mA).
The Siemens 3UG4621-1AW30 is a digital monitoring relay designed for precise current monitoring in industrial applications. This compact 22.5mm wide relay offers both overshoot and undershoot monitoring for AC or DC currents ranging from 2 to 500 mA. It operates with a wide supply voltage range of 24 to 240V AC/DC at 50/60 Hz. The relay includes adjustable functions for ON-delay and noise pulse delay, with a time range of 0.1 to 20 seconds. It also features adjustable hysteresis from 0.1 to 250 mA and provides one changeover contact (1 CO). The terminal type is screw terminal.
This monitoring relay is crucial for protecting electrical equipment and ensuring operational reliability by detecting abnormal current conditions. It is commonly used in motor protection circuits, pump control, fan monitoring, and general equipment protection across various industries, including manufacturing, water treatment, and building automation, to prevent damage from overcurrent or undercurrent situations.
Stanlo Automation, a veteran-owned distributor of surplus industrial automation parts, offers the Siemens 3UG4621-1AW30 monitoring relay. We provide reliable, tested components to minimize your operational costs and downtime. Sourcing from Stanlo ensures you receive quality surplus parts with prompt service, supporting the longevity of your automation systems.
| Type | Digital Current Monitoring Relay |
| Current Range | 2 - 500 mA AC/DC |
| Supply Voltage | 24 - 240 V AC/DC |
| Frequency | 50/60 Hz |
| Monitoring Function | Overshoot/Undershoot |
| Time Delay | ON-delay, Noise Pulse Delay (0.1-20s) |
| Hysteresis | 0.1 - 250 mA |
| Output Contact | 1 CO (Changeover) |
| Width | 22.5 mm |
| Terminal | Screw Terminal |