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Siemens 3RP2560-1SW30 Electronic Star-Delta Time Relay

Siemens 3RP2560-1SW30 Electronic Star-Delta Time Relay, 30-600s delay, 3 NO contacts.

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ManufacturerSiemens

Part number3RP2560-1SW30

Function Star-Delta (Wye-Delta)

Delay Time 30-600 s

Contacts 3 NO (Common Potential)

Voltage 12-240 V AC/DC (50/60 Hz AC)

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Star-Delta Motor Starting Function Adjustable Delay Time (30-600s) 3 Normally Open Contacts Wide Voltage Input (12-240V AC/DC) Suitable for Three-Phase Motors Screw Terminal Connections

Product description

The Siemens 3RP2560-1SW30 is an electronic time relay specifically designed with a star-delta (wye-delta) starting function for three-phase motors. It features a delay time adjustable from 30 to 600 seconds. This relay provides 3 normally open (NO) contacts with a common potential. It operates on a wide voltage range of 12-240V AC/DC at 50/60 Hz AC and uses screw terminals for connection. The operational voltage range is 0.85 to 1.1 Us (supply voltage).

This star-delta timing relay is essential for reducing starting current and torque in applications involving large three-phase motors, such as pumps, fans, compressors, and conveyors. It ensures smoother motor startup, prolonging motor life and reducing stress on the power supply.

Source your Siemens 3RP2560-1SW30 from Stanlo Automation, a veteran-owned distributor of surplus industrial automation parts. We are committed to providing reliable components for your automation needs.

Technical specifications

Function	Star-Delta (Wye-Delta)
Delay Time	30-600 s
Contacts	3 NO (Common Potential)
Voltage	12-240 V AC/DC (50/60 Hz AC)
Supply Voltage Range	0.85 - 1.1 Us
Terminal Type	Screw
Motor Type	Three-phase

Common applications

Motor Control Panels

Pump Stations

Fan Systems

Compressor Control

Conveyor Systems

Industrial Machinery

Compatible systems

Designed for direct integration into motor control circuits, compatible with three-phase motors and control panels providing 12-240V AC/DC power.

Also known as

Siemens Time Relay 3RP2560-1SW30 3RP25601SW30 Siemens Star Delta Siemens 7LF5101-1BA00 (similar functionality)

Replaces / compatible with

This relay is designed to replace older Siemens star-delta timing relays and is a standard component for controlling the starting sequence of three-phase motors. Compatible with Siemens' 3RP series.

Technical note

Expert tip

Proper wiring is crucial for star-delta operation; ensure the motor windings and the relay contacts are correctly configured to prevent damage.

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Frequently asked questions

What is the adjustable delay time range for the Siemens 3RP2560-1SW30 star-delta time relay?

The Siemens 3RP2560-1SW30 star-delta time relay offers an adjustable delay time specifically for the transition from star to delta configuration, ranging from 30 to 600 seconds. This allows for optimal motor startup based on load conditions.