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Siemens 3RA1120-1KD26-0BB4 Fuseless Direct-On-Line Load Feeder

Siemens 3RA1120-1KD26-0BB4 Load Feeder

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ManufacturerSiemens

Part number3RA1120-1KD26-0BB4

Type Load Feeder

Starting Method Direct-On-Line

Fuseless Yes

Voltage 400V AC

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CAGE: 9NK75

Fuseless direct-on-line starting Size S0, 9-12.5A rating 24V DC control voltage Type of Coordination 2 High short-circuit current rating (50 kA)

Product description

The Siemens 3RA1120-1KD26-0BB4 is a fuseless direct-on-line load feeder designed for motor starting applications.

It operates at 400V AC and is rated for Size S0 with a current range of 9-12.5A, utilizing a 24V DC control voltage. This model features screw terminals and is designed for mounting on a 60mm busbar adapter. It adheres to Type of Coordination 2, with a short-circuit current rating (Iq) of 50 kA, also fulfilling Type of Coordination 1.

This product is ideal for industrial machinery, manufacturing lines, and automation systems where reliable motor control is essential. It is particularly suited for applications requiring direct-on-line starting of three-phase motors. Industries such as manufacturing, material handling, and process control commonly utilize this type of component.

Source your Siemens 3RA1120-1KD26-0BB4 from Stanlo Automation, a veteran-owned distributor committed to providing quality surplus industrial parts with expert service and reliable delivery.

Technical specifications

Type	Load Feeder
Starting Method	Direct-On-Line
Fuseless	Yes
Voltage	400V AC
Size	S0
Current Range	9-12.5A
Control Voltage	24V DC
Coordination Type	2 (also fulfills 1)
Short Circuit Current (Iq)	50 kA
Terminals	Screw
Mounting	60mm Busbar Adapter

Common applications

Motor Starting

Industrial Automation

Manufacturing Lines

Material Handling

Process Control

Compatible systems

General motor control circuits requiring direct-on-line starting

Also known as

Siemens SIRIUS 3RA1120-1KD26-0BB4 Load Feeder 3RA1120-1KD26-0BB4 Direct Starter 3RA1120-1KD26-0BB4

Replaces / compatible with

This product is phased out. The successor is SIRIUS 3RA2. Preferred successor type is 3RA2120-1KD24-0BB4.

Technical note

Expert tip

This load feeder is designed for direct-on-line starting and requires a separate overload relay for motor protection, as it is fuseless.

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Frequently asked questions

What is the successor to the Siemens 3RA1120-1KD26-0BB4?

The Siemens 3RA1120-1KD26-0BB4 is a phased-out product. Its successor is the SIRIUS 3RA2 series, with the preferred successor type being 3RA2120-1KD24-0BB4.