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header-product Siemens Power Contactor 3RT20231AP00 AC-3 4kW 9A 230V 50Hz 1NO 1NC Size S0

Siemens Power Contactor 3RT20231AP00 AC-3 4kW 9A 230V 50Hz 1NO 1NC Size S0

Siemens 3RT20231AP00 Power Contactor Photo 1
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Short description

Siemens power contactor model 3RT20231AP00 designed for industrial electrical switching applications. Features an AC-3 rating of 4kW, 9A operating current, and a 230V 50Hz control supply voltage. Equipped with built-in 1NO and 1NC auxiliary contacts in a compact size S0 housing. Suitable for motor control, power distribution, and automated system integration, ensuring reliable performance in demanding environments.
Warranty: 2 Years
SKU: 1807920
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Product information

Description

The Siemens power contactor is an industrial-grade switching device engineered for reliable motor control and power distribution applications. As part of the modular SIRIUS system, this 3-pole contactor delivers dependable performance with high contact reliability in a space-saving housing. It is designed to handle demanding electrical switching tasks efficiently while integrating smoothly into automated systems.

Advantages

This power contactor features a compact design that saves valuable space within control cabinets while maintaining high operational reliability. Integrated auxiliary switches help reduce overall design complexity, and front-panel screw terminals simplify the wiring process during installation. The device is climate-resistant, approved for international use according to major standards, and ready for modern high-efficiency motor categories. Its modular construction allows seamless combination with other SIRIUS components to build optimized load feeders.

Suitable for

  • Switching and controlling industrial electric motors
  • Power distribution in automated systems
  • Integration into load feeders with factory-tested device combinations
  • Applications requiring auxiliary signal feedback via built-in contacts

When it may not be suitable

This device is not designed for direct residential use without appropriate enclosure and professional electrical installation. It is also unsuitable for DC control voltage applications since its coil is specifically rated for 230V AC at 50Hz.

Key specifications

  • 3-pole power contactor configuration
  • AC-3 operational current: 9 A
  • Rated power: 4 kW at 400 V
  • Control supply voltage: 230 V AC, 50 Hz
  • Auxiliary contacts: 1 normally open and 1 normally closed
  • Size: S0
  • Connection type: Screw terminal
  • Physical dimensions: Height 85 mm, Width 54 mm, Depth 92 mm

How to use

Installation should be performed by qualified electrical personnel in accordance with relevant safety standards. Mount the contactor securely onto a standard mounting rail inside a suitable control cabinet. Connect the main power lines and the 230V 50Hz AC control supply to the designated screw terminals, ensuring all connections are properly torqued. Integrate the built-in auxiliary contacts into your control circuit as needed for signaling or interlocking purposes before energizing the system.

What to consider before purchase

  • Verify that your control circuit voltage matches the 230V 50Hz coil specification
  • Check that the 9A operational current and 4kW power rating suit your motor load
  • Ensure physical dimensions and size S0 fit within your available enclosure space

Usage recommendations

Operate the device within its specified electrical and environmental ratings, and periodically inspect screw terminal connections to maintain optimal performance and safety in industrial environments.
All features
Minimum order quantity:
1 pc(s)
Battery included:
No
Maximum order quantity:
1 pc(s)
Compliance certificates: Indicates which regulatory, safety, and environmental standards the product complies with, as verified by recognized authorities or certification bodies.
RoHS, CE
Main circuit connection type:
Screw connection
Number of auxiliary NC contacts:
1
Number of auxiliary NO contacts:
1
Actuating voltage type:
AC
Rated operational power (AC-3, 400V):
4 kW
Suitable for distribution boards:
Yes
Operating voltage AC (50Hz):
690
Operating coltage AC (60Hz):
690
Number of NO main contacts:
3
Rated operation current (Ie at AC-3, 400V):
9 A
Number of NC main contacts:
0
Rated operation current (Ie at AC-1, 400V):
40 A
Rated operation power (NEMA):
5 hp
Rated operation current (Ie at AC-4, 400V):
8.5 A

Weight & dimensions

Package weight: Weight of the packaged product.
408 g
Height: The measurement of the product from head to foot or from base to top.
85 mm
Package depth: The distance from the front to the back of the packaging.
92 mm
Package height: The distance from the top to the bottom of the packaging.
105.5 mm
Package width: The distance from one side of the packaging to the other.
54 mm

Description

Machine translation.

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Customer questions

FAQ

What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All Siemens products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Siemens service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.
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14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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