Siemens 7PU6040-7NN20 Star-Delta Timer Relay

The Siemens 7PU6040-7NN20 is a surface-mount star-delta timer relay designed for controlling motor starting sequences. It features one delayed normally open (NO) contact and one instantaneous normally open (NO) contact. The time setting range is adjustable from 2 seconds to 20 seconds, suitable for a wide variety of motor applications. This relay operates on AC 50/60Hz power supply, specifically rated for 220-240V, and does not include an LED indicator.

This star-delta timer is essential for reducing the inrush current when starting three-phase induction motors, thereby protecting the motor and the power supply system. It finds applications in various industries, including manufacturing, pump control, fan systems, and any scenario where large motors require soft starting to prevent mechanical stress and electrical surges.

Stanlo Automation, a veteran-owned surplus distributor, offers this Siemens 7PU6040-7NN20 timer relay. We provide a cost-effective solution for replacing or stocking essential components, ensuring your machinery operates efficiently and reliably. Partner with Stanlo Automation for dependable surplus parts and knowledgeable support.