Siemens 3RP1574-1NP30 Electronic Timing Relay - Star-Delta
Siemens 3RP1574-1NP30 electronic star-delta timing relay.
The Siemens 3RP1574-1NP30 is an electronic timing relay designed for star-delta (wye-delta) motor starting applications. This unit provides a delayed 1 NO contact and an instantaneous 1 NO contact, allowing for controlled motor start-up sequences. The adjustable time range is from 1 to 20 seconds.
This relay is crucial in applications where soft starting of three-phase motors is required to reduce inrush current and mechanical stress. It is commonly used in pump controls, fan systems, conveyor belts, and other industrial machinery where motor protection and efficient operation are paramount.
Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 3RP1574-1NP30, providing a reliable source for this essential control component. We ensure that our surplus inventory meets high standards, allowing you to maintain your automation systems efficiently.
| Function | Star-Delta |
| Contacts | 1 NO delayed, 1 NO instantaneous |
| Time Range | 1-20 s |
| Voltage | 24 V AC/DC, 200-240 V AC |
| Frequency | 50/60 Hz |
| Terminals | Screw |