3RT1023-1AB00

Siemens 3RT1023-1AB00 available at EU Automation. Get in touch today for a quick price.

Trustpilot stars Based on over 4900 reviews

Full 12-month warranty

Available for dispatch immediately

We deliver worldwide

Get a quick price for 3RT1023-1AB00

Quantity

Adding another part to your enquiry?

For more information on how your data is processed and stored by EU Automation please read our privacy policy.

All orders are subject to product availability. See our T&Cs.

Ask our team

What happens next?

1. Email confirmation

You will get an email confirming that we have received your enquiry.

2. Dedicated Account Manager

One of our team will be in touch to confirm your part(s) specification and condition.

3. Your quote

You will receive a comprehensive quote tailored to your specific needs.

The Siemens 3RT1023-1AB00 is a SIRIUS power contactor designed for reliable switching of motors and power loads in industrial control panels. This 3-pole Size S0 contactor features screw terminals and a 24 V AC, 50 Hz coil, making it suitable for use in compact motor control assemblies and automation systems.

Rated for AC-3 operation at 9 A and 4 kW at 400 V, the 3RT1023-1AB00 is commonly used for controlling three-phase motors, pumps, fans, conveyors, and similar equipment. It also supports AC-1 applications up to 40 A at 400 V, with a rated operating power of 23 kW for resistive loads. The unit has three normally open main contacts and is built for DIN rail or screw mounting, providing flexibility during panel installation.

With an operating temperature range of -25 °C to +60 °C, IP20 front protection, and a typical mechanical service life of 10 million switching cycles, this Siemens contactor is well suited to demanding industrial environments where dependable switching performance is required. Its compact 45 mm width helps save space in control cabinets while maintaining compatibility with standard Siemens SIRIUS contactor arrangements.
Specification Description
Manufacturer Siemens
Part Number 3RT1023-1AB00
Alternative Part Number 3RT10231AB00
Product Range SIRIUS
Product Type Power contactor
Contactor Size S0
Main Pole Configuration 3-pole
Main Contacts 3 normally open main contacts
Auxiliary Contacts No integrated auxiliary contacts
Control Coil Voltage 24 V AC, 50 Hz
Utilisation Category AC-3 9 A at 400 V
Motor Rating AC-3 4 kW at 400 V, 4.5 kW at 500 V, 5.5 kW at 690 V
Utilisation Category AC-1 40 A at 400 V, 40 °C ambient
Power Rating AC-1 23 kW at 400 V
Utilisation Category AC-4 8.5 A at 400 V
DC-1 Current Rating 35 A at 24 V using one current path
Coil Pick-Up Power 61 VA
Coil Holding Power 7.8 VA
Operating Voltage Range 0.8 to 1.1 x rated coil voltage at 50 Hz
Connection Type Screw terminals for main, auxiliary and control circuits
Mounting Type Screw mounting or snap-on mounting to 35 mm DIN rail
Degree of Protection IP20 at the front, IP00 at the terminals
Ambient Operating Temperature -25 °C to +60 °C
Mechanical Service Life Typically 10,000,000 switching cycles
Short-Circuit Protection, Main Circuit gL/gG fuse: 63 A for coordination type 1; 25 A for coordination type 2
Short-Circuit Protection, Auxiliary Circuit gL/gG fuse: 10 A
Dimensions 85 mm height x 45 mm width x 91 mm depth
Side-by-Side Mounting Suitable for side-by-side installation
Commodity Code 853649

What type of industrial component is this?

This is a Siemens SIRIUS power contactor designed for switching electrical loads in industrial control panels, particularly three-phase motor and power circuits.

What applications is this contactor typically used for?

It is commonly used for motor control, load switching, pump and fan control, conveyor systems, machine panels, and other industrial automation applications that require reliable switching of three-phase circuits.

What is the rated control coil voltage?

The control coil is rated for 24 V AC at 50 Hz. This means the contactor is intended to be energized by a 24 V AC control circuit.

How many main poles does this contactor have?

The contactor has 3 main poles, making it suitable for switching three-phase electrical loads.

What is the contactor size?

This unit is Siemens size S0, a compact contactor frame size commonly used in industrial motor control assemblies.

What is the AC-3 current rating at 400 V?

The AC-3 operating current rating at 400 V is 9 A. AC-3 ratings are typically used when selecting contactors for squirrel-cage motor starting and switching duties.

What is the AC-3 power rating at 400 V?

The AC-3 operating power rating at 400 V is 4 kW, making the 3RT1023-1AB00 suitable for appropriately rated motor switching applications.

What is the AC-1 current rating?

The AC-1 current rating is 40 A at 400 V with an ambient temperature of 40 °C. At up to 690 V, it is rated 40 A at 40 °C and 35 A at 60 °C.

What is the AC-1 power rating at 400 V?

The AC-1 operating power rating at 400 V is 23 kW. AC-1 ratings are generally associated with non-inductive or slightly inductive loads.

Does this contactor include auxiliary contacts as standard?

The base configuration listed for this contactor has no built-in instantaneous auxiliary NO or NC contacts. Auxiliary contact blocks may be used where compatible with the installation requirements.

What type of terminals does this contactor use?

It uses screw-type terminals for both the main current circuit and the auxiliary/control circuit connections.

What mounting options are available for this contactor?

The contactor can be screw mounted or snapped onto a 35 mm standard mounting rail according to DIN EN 50022.

What are the approximate dimensions of the unit?

The contactor measures approximately 85 mm high, 45 mm wide, and 91 mm deep.

What is the operating ambient temperature range?

The operating ambient temperature range is -25 °C to +60 °C, subject to the electrical ratings and installation conditions.

What is the mechanical service life of the contactor?

The typical mechanical service life of the contactor is 10,000,000 switching cycles. With added electronics-compatible auxiliary switch blocks, the typical value is 5,000,000 switching cycles.

What degree of protection does the contactor provide?

The front of the contactor is rated IP20, while the terminals are rated IP00. This should be considered when the unit is installed inside an enclosure.

What short-circuit protection is specified for the main circuit?

For the main circuit, the specified gL/gG fuse rating is 63 A for coordination type 1 and 25 A for coordination type 2.

What conductor sizes can be connected to the main contacts?

For the main contacts, the contactor accepts solid, single-stranded, or multi-stranded conductors in specified ranges up to a maximum of 2 x 10 mm². For AWG conductors, listed options include 2 x 16 to 12, 2 x 14 to 10, or 1 x 8.

What are the coil power characteristics?

The magnet coil has an apparent pick-up power of 61 VA and an apparent holding power of 7.8 VA at AC operation.

What terminal markings are used for the main circuit and coil?

The coil terminals are marked A1 and A2. The main incoming terminals are marked 1/L1, 3/L2, and 5/L3, with corresponding outgoing terminals 2/T1, 4/T2, and 6/T3.

  • Switching three-phase motors in industrial machinery and production equipment
  • Controlling pumps, fans, compressors, conveyors, and other motor-driven loads
  • Motor starter assemblies requiring a 24 V AC control coil
  • Panel building applications using compact S0 size contactors
  • Automation control cabinets with screw-terminal power and control wiring
  • AC-3 motor control applications up to 4 kW at 400 V
  • AC-1 resistive load switching applications up to 40 A
  • HVAC equipment control for blowers, circulation pumps, and ventilation systems
  • Packaging, material handling, and processing equipment control circuits
  • DIN rail or screw-mounted installations in industrial electrical panels

This content has been produced using multiple sources. EU Automation takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.

Delivery

  • Logistic partners UPS, FedEx and DHL
  • International delivery available
  • Premium nine hour delivery service available to anywhere in Europe
  • Same day dispatch from group stock

Warranty

All parts new or reconditioned are covered by EU Automation 12 month warranty

Returns

No hassle returns policy

Dedicated customer support team

Trade Credit

We understand that credit is a necessary part of business and offer credit agreements on request, subject to status.

Payment options

We accept Bank transfers and the following methods of payment:

All transactions are handled securely by HSBC and HSBC Merchant Services. For more information, please visit our dedicated payments page.

Services

Sourcing your part

Global supplier of quality automation and control components

Service Exchange

Dispose of your old unit by exchanging it for a working part.

Repair

A comprehensive repair service for faulty equipment.

Customer reviews

5 out of 5 stars steve

Got hold of Sime for a Carrier card for…


Got hold of Sime for a Carrier card for a chiller. Machine down in a factory. Received the new card in express time machine and plant now up and running fantastic service form Sime

3 months ago

5 out of 5 stars Daniel

Excellent customer service...


Alex Bailey is my main point of contact at EU Automation...he is extremely friendly, has exceptional customer service skills and always offers great pricing & lead times.

5 months ago

5 out of 5 stars Jerry Schrink

Tom Higgins provided amazing service


Tom Higgins provided great prompt service. I contacted Tom by phone and within 10 minutes there was a quote in my in box. WOW Thank you Tom and Thank you EU Automation!

5 months ago

5 out of 5 stars Paulo Pereira

Excellent service and communication…


Excellent service and communication from Alex Bailey. He truly goes above and beyond to ensure his clients are 100% satisfied. The entire process was seamless, and his attention to detail made a huge difference. Highly recommended for anyone looking for amazing service!

5 months ago

5 out of 5 stars Gary

Tom Higgins did a great job at getting…


Tom Higgins did a great job at getting us the part we needed. He saw a concern with the part a verified before shipping.

5 months ago

5 out of 5 stars Lessle Smith

Thomas Higgins has gone above and…


Thomas Higgins has gone above and beyond to make things happen for my facility. His customer service and knowledge were an asset in helping me with my order and the logistics challenges!

6 months ago

Factory worker carrying automation parts box.

Be a Factory Hero.

Get parts fast.

You don’t need tights and a cape to be a hero.
Get parts fast and feel like a legend, just like Jeff.

Be a Factory Hero

FAQs

View all FAQs

We're here when you need us