Home › Manufacturers › Siemens › 3RA2120-1KA24-0BB4

Siemens

Siemens 3RA2120-1KA24-0BB4 Motor Starter, Size S0

Siemens 3RA2120-1KA24-0BB4 Motor Starter

● In Stock 12-Mo Warranty Same-Day Dispatch Ships Worldwide 🎖 Veteran-Owned

In Stock — Ready to Ship

ManufacturerSiemens

Part number3RA2120-1KA24-0BB4

Type Load Feeder, Direct-On-Line

Manufacturer Siemens

Series SIRIUS 3RA21

Size S0

Get a price for 3RA2120-1KA24-0BB4

Response within 1 business hour

🛡

12-month warranty

All units tested

⚡

Same-day dispatch

Order by 2pm CST

🌐

Worldwide delivery

US, EU, Asia, Middle East

🎖

Veteran-owned

CAGE: 9NK75

Fuseless Direct-On-Line Starting Size S0 24 V DC Coil Type of Coordination 2 Screw Terminal 1 NO + 1 NC Auxiliary Contacts DIN Rail Mountable

Product description

The Siemens 3RA2120-1KA24-0BB4 is a fuseless direct-on-line load feeder within the SIRIUS 3RA21 series. It features a Size S0 rating, a current range of 9.00 to 12.5 A, and a 24 V DC coil. This unit is designed for installation on standard mounting rails and offers Type of Coordination 2 with a significant breaking capacity of 150 kA.

This motor starter is suitable for a variety of industrial applications, including motor protection in manufacturing equipment, automation systems, and material handling. Its reliable performance and Type 2 coordination ensure safety and operational continuity.

Stanlo Automation, a veteran-owned surplus parts distributor, provides the Siemens 3RA2120-1KA24-0BB4. We offer a dependable source for industrial automation components, ensuring you get the parts you need at a competitive price.

Technical specifications

Type	Load Feeder, Direct-On-Line
Manufacturer	Siemens
Series	SIRIUS 3RA21
Size	S0
Current Range	9.00-12.5 A
Coil Voltage	24 V DC
Mounting	Standard Mounting Rail
Coordination Type	1 & 2
Breaking Capacity (Iq)	150 kA
Auxiliary Contacts	1 NO + 1 NC

Common applications

Manufacturing Equipment

Automation Systems

Material Handling

Motor Control Centers

Industrial Machinery

Processing Lines

Compatible systems

Siemens LOGO! Siemens S7-1200 Siemens S7-1500 General industrial control panels

Also known as

Siemens 3RA2120 Starter Siemens S0 Motor Feeder 3RA2120 Starter 9-12.5A

Replaces / compatible with

The Siemens 3RA2120-1KA24-0BB4 is designed to replace or upgrade existing Siemens SIRIUS 3RA21 starters in the 9-12.5A range. It offers enhanced safety features and reliable performance.

Technical note

Expert tip

For optimal performance and longevity, ensure that the ambient temperature surrounding the starter remains within the manufacturer's specified operating range.

What happens next?

Email confirmation

Immediate receipt acknowledgment sent to you

Account manager assigned

Confirms your part's spec and condition

Your quote delivered

Tailored to your specific requirements

Frequently asked questions

What are the auxiliary contacts on the Siemens 3RA2120-1KA24-0BB4?

The Siemens 3RA2120-1KA24-0BB4 comes equipped with one normally open (NO) and one normally closed (NC) auxiliary contact. These can be wired into control circuits for signaling or interlock functions.