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Siemens 3RW4427-3BC35 SIRIUS Soft Starter - Phased Out

Siemens 3RW4427-3BC35 SIRIUS soft starter with spring terminals.

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ManufacturerSiemens

Part number3RW4427-3BC35

Voltage 400-600 V AC

Control Voltage 115 V AC

Standard Current 82 A (575V, 50°C)

Inside-Delta Current 142 A

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12-month warranty

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Worldwide delivery

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Veteran-owned

CAGE: 9NK75

Spring-type terminal connections Smooth motor start Reduced mechanical stress Overload protection Compact design Energy saving

Product description

The Siemens 3RW4427-3BC35 is a versatile SIRIUS soft starter featuring spring-type terminals for quick and secure connections. It delivers 82 A at 575 V (50°C standard) and 142 A inside-delta, with power ratings of 75 hp and 125 hp respectively. This unit is designed for 400-600 V AC power and uses 115 V AC for control circuits.

This soft starter is ideal for applications requiring rapid installation and reliable motor control, such as in machinery with frequent maintenance or in space-constrained control panels. It provides smooth acceleration, reducing stress on mechanical components and the electrical system. Industries such as food and beverage, packaging, and material handling benefit from its efficient operation.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 3RW4427-3BC35 to meet your automation needs. We specialize in providing discontinued and hard-to-find parts, ensuring you can keep your operations running. Trust Stanlo Automation for quality surplus components and dedicated customer service.

Technical specifications

Voltage	400-600 V AC
Control Voltage	115 V AC
Standard Current	82 A (575V, 50°C)
Inside-Delta Current	142 A
Standard Power	75 hp (575V, 50°C)
Inside-Delta Power	125 hp
Terminals	Spring-type

Common applications

Motor control

Pump systems

Fan control

Conveyor systems

Packaging machinery

Food and beverage industry

Compatible systems

Siemens SIRIUS motor control systems

Also known as

Siemens SIRIUS 3RW44 starter 3RW4427 spring terminal Siemens soft starter 115V AC control

Replaces / compatible with

This product is phased out. The preferred successor is the Siemens 3RW5527-3HA16.

Technical note

Expert tip

The spring-type terminals offer vibration resistance and a reliable connection, ideal for environments where regular maintenance or vibration is a concern.

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Frequently asked questions

Does the Siemens 3RW4427-3BC35 feature screw or spring terminals?

The Siemens 3RW4427-3BC35 soft starter is equipped with spring-type terminals, which allow for faster and more secure connections compared to traditional screw terminals.