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header-product Siemens 3RT20162BB42 Power Contactor 3-pole 9A 4kW 24V DC with 1NC Auxiliary Contact

Siemens 3RT20162BB42 Power Contactor 3-pole 9A 4kW 24V DC with 1NC Auxiliary Contact

Siemens 3RT20162BB42 Power Contactor Photo 1
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Short description

Siemens 3RT20162BB42 power contactor designed for reliable electrical circuit switching and motor control applications. This 3-pole device supports AC-3 rating with 4kW power capacity at 400V, a 9A operational current, and features a 24V DC control voltage coil along with 1NC auxiliary contact in a compact size.
Warranty: 2 Years
SKU: 1801001
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Product information

Description

The Siemens power contactor is a reliable electrical switching device designed for motor control and various industrial applications. Engineered for efficiency and safety, this 3-pole contactor supports a 9 A operational current and 4 kW power capacity at 400 V under AC-3 rating. It operates with a 24 V DC control voltage coil and includes an integrated 1 NC auxiliary contact. Built within a compact size S00 modular design, it features spring-loaded terminals for secure and vibration-proof wiring. As part of the SIRIUS system, this device ensures high contact reliability and is climate-resistant, making it suitable for worldwide industrial use.

Advantages

This power contactor offers a space-saving and compact design that integrates seamlessly into modular control panels. The spring-loaded terminal technology enables fast, maintenance-free, and vibration-proof installation, significantly reducing wiring time and effort. High contact reliability and climate resistance ensure stable performance even in demanding industrial environments. Additionally, the integrated auxiliary contact minimizes the need for extra components, simplifying overall circuit design and automation integration.

Suitable for

  • Motor control and switching applications in industrial automation
  • Integration into modular load feeders and control panels
  • Electrical circuit switching requiring a 24 V DC control voltage
  • Machinery and equipment compliant with IEC and UL/CSA standards

When it may not be suitable

This power contactor is not designed for residential electrical installations or applications requiring AC control voltage without an appropriate rectifier. It is also unsuitable for motor loads exceeding the specified 4 kW at 400 V or operational currents greater than 9 A.

Key specifications

  • 3-pole power contactor
  • AC-3e/AC-3 rating
  • 9 A operational current
  • 4 kW power capacity at 400 V
  • 24 V DC control voltage
  • 1 NC auxiliary contact
  • Spring-loaded terminals
  • Size S00
  • Height: 70 mm

How to use

Mount the power contactor securely onto a standard mounting rail within a suitable control enclosure. Connect the main power circuit wires and the 24 V DC control voltage to the designated spring-loaded terminals, ensuring all connections are firmly seated to prevent loose contacts. Integrate any necessary auxiliary circuits through the 1 NC contact as required by your control logic. Verify proper wiring and alignment with other modular SIRIUS components before energizing the system.

What to consider before purchase

  • Verify that the operational current of 9 A and 4 kW power rating match your motor specifications
  • Ensure a 24 V DC power supply is available for the control coil
  • Check available space in the control cabinet for size S00 components
  • Confirm compatibility with existing modular system accessories and auxiliary units

Always disconnect power to the control panel before installing, inspecting, or servicing the power contactor. Installation should be performed by qualified personnel in accordance with relevant electrical codes and manufacturer instructions.

All features
Minimum order quantity:
1 pc(s)
Maximum order quantity:
1 pc(s)
Main circuit connection type:
Spring clamp connection
Number of auxiliary NC contacts:
1
Number of auxiliary NO contacts:
0
Actuating voltage type:
DC
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):
22 A
Rated operation power (NEMA):
5 hp
Rated operation current (Ie at AC-4, 400V):
8.5 A

Technical details

Compliance certificates: Indicates which regulatory, safety, and environmental standards the product complies with, as verified by recognized authorities or certification bodies.
CE, RoHS

Packaging content

Battery included:
No

Weight & dimensions

Package weight: Weight of the packaged product.
312 g
Package height: The distance from the top to the bottom of the packaging.
77.5 mm
Package depth: The distance from the front to the back of the packaging.
73.5 mm
Package width: The distance from one side of the packaging to the other.
50 mm
Height: The measurement of the product from head to foot or from base to top.
70 mm

Description

Machine translation. Load original

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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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