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Siemens 3RT1056-6NP38-0PA5

Name: 3RT1056-6NP38-0PA5
Brand: Siemens
SKU: 3RT1056-6NP38-0PA5
Price: 455.7 GBP
Availability: InStock

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£455.70 (ex. VAT)

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Marvo Stock ID MV-7DCP

HS Code 85364900

SKU 3RT1056-6NP38-0PA5

Condition Used

Warranty 12 months

Weight (kg) 3.50

Length (mm) 170.00

Width (mm) 120.00

Height (mm) 172.00

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Specification & Description

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Commonly Asked Questions

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Customer Reviews

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Specification & Description

Specification	Description
Part Number	3RT1056-6NP38-0PA5
Manufacturer	Siemens
Product Type	Power Contactor
Poles	3 Poles
Contact Configuration	2NO/2NC (2 Normally Open, 2 Normally Closed)
Rated Operational Current	185 A
Rated Control Supply Voltage (AC)	200 to 277 V
Rated Control Supply Voltage (DC)	200 to 277 V
Rated Operational Power at 400 V	90 kW
Insulation Voltage	1000 V ac
Surge Voltage Resistance	8 kV
Mechanical Service Life	10,000,000 cycles typical
Ambient Operating Temperature Range	-25 to +60 °C
Installation Altitude	Up to 2000 m above sea level
Mounting Type	Screw fixing
Dimensions (H x W x D)	172 mm x 120 mm x 170 mm
Auxiliary Contacts	2 NC and 2 NO instantaneous contacts
Operating Frequency at AC-3	Maximum 750 1/h
Control Circuit Type	AC/DC
Design of the Surge Suppressor	With varistor
Connection Type	Screw-type terminals for main and auxiliary circuits
Approvals	General Product Approval, Functional Safety/Safety of Machinery, Declaration of Conformity

The Siemens 3RT1056-6NP38-0PA5 is a robust power contactor designed to handle high current applications with ease. This contactor is engineered for AC-3 operations and is capable of switching motors with power ratings up to 90 kW at 400 V. It features a three-pole design with additional 2NO/2NC auxiliary contacts, providing flexibility for various control and power circuit configurations.

With an insulation voltage rated at 1000 V ac and operational voltage capabilities ranging from 200 to 277 V dc, this contactor is suitable for a wide array of industrial applications. The solid-state composition and bar connections ensure durability and reliable connections, while the electronic operating mechanism is optimised for direct PLC interface with a 24V DC control voltage.

The contactor is designed to withstand challenging environmental conditions, with an operational temperature range of -25 to +60 °C and storage temperatures ranging from -55 to +80 °C. It also boasts a mechanical service life of up to 10 million switching cycles, highlighting its longevity and reliability in demanding industrial settings.

Installation is made straightforward with its screw fixing mounting type, and the compact dimensions (height: 172 mm, width: 120 mm, depth: 170 mm) allow for efficient use of space inside control cabinets. The contactor also supports side-by-side mounting, enabling neat and organised panel layouts.

Overall, the Siemens 3RT1056-6NP38-0PA5 power contactor is a high-performance component that offers reliable operation, extensive service life, and compatibility with a wide range of industrial control systems.

Commonly Asked Questions

Is my order covered by a warranty?

Marvo provides a full 12-month warranty on all products, whatever the condition. For your peace of mind, all parts are ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. If you are unhappy with the part(s) you received and would like to request a return, you can do so by completing our quick and easy online form. Once we have received your Returns Request, a member of the team will be in touch to discuss this further with you. You can read more about our warranty policy here.

What payment methods do you accept?

We accept card payments from all major credit, debit and Mastercard providers including Visa, American Express, Western Union, Paypal and bank transfers. Before you complete an order you will be prompted to input your payment details, at which point you can enter the relevant card information you wish to use for your transaction. If you are experiencing issues with your payment method then you can contact our team via email here. From there, you will be directed to the most relevant resource or person to help you complete your payment, get your order processed and ensure that your parts are on the way to your delivery address.

Is Marvo a credible parts supplier?

Marvo is a highly credible supplier of industrial automation parts and components with dedicated hubs around the world offering industry-leading products and services. Marvo is committed to providing a quick, easy and reliable place to source your automation and control components. All purchases come as standard with a comprehensive 12-month return to base warranty meaning that, in just a few clicks, you can source critical parts more seamlessly than ever before. Click here to read an article on how Marvo is redefining convenience for automation and manufacturing professionals.

Have steps been taken to ensure quality control?

Marvo takes pride in product quality and has put several measures in place to assure high levels of quality standards. For your peace of mind, all parts have been ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. Redefine convenience and secure priority delivery on all parts along with a comprehensive 12-month warranty. This is the smart new way to buy automation and control components.

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Our service to you

Lightning-Fast Express Shipping: Receive your order in record time with our express shipping options, ensuring you minimize downtime and keep your projects on track.

No-Risk Returns, Guaranteed: Return your parts anytime for a full refund. Our hassle-free return policy ensures you’re never stuck with something you don’t need.

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Rock-Solid Reliability at a Fraction of the Cost: Get pre-owned electronic parts that are fully tested for peak performance, saving you money without compromising on quality, backed by a comprehensive warranty.

Frequently Asked Questions

What are the main technical specifications of this power contactor?

This Siemens power contactor is a size S6, with an insulation voltage rated at 1000 V and a surge voltage resistance rated at 8 kV. It has an IP00 protection class for both the front and terminal, and a mechanical service life of 10 million switching cycles. The contactor is designed for AC/DC operation with a control supply voltage of 200 to 277 V.

Can this contactor be used in high-altitude installations?

Yes, the contactor can be installed at altitudes up to 2000 metres above sea level without derating.

What is the maximum operating temperature for this contactor?

The contactor is designed to operate within an ambient temperature range of -25 to +60 degrees Celsius.

What is the rated operating current for this contactor?

The rated operating current for the contactor at AC-3 is 185 A at 400 V.

What are the dimensions of this contactor for installation purposes?

The dimensions for the contactor are 172 mm in height, 120 mm in width, and 170 mm in depth. A spacing of 10 mm is required for grounded parts at the side.

What type of connections does this contactor support?

The contactor supports screw-type terminals for both the main current circuit and the auxiliary and control current circuit.

How many auxiliary contacts does this contactor have?

The contactor is equipped with 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts.

What is the short-circuit protection design for this contactor?

For short-circuit protection of the main circuit, a fuse gL/gG of 355 A is required for type of assignment 1, and 315 A for type of assignment 2. For the auxiliary switch, a fuse gL/gG of 10 A is required.

What is the thermal short-time current limit for this contactor?

The thermal short-time current limit for the contactor is 1480 A for a duration of 10 seconds.

What are the control circuit specifications for this contactor?

The control circuit is designed for AC/DC operation with a control supply voltage rated at 200 to 277 V, both at 50 Hz and 60 Hz. The operating range factor for the control supply voltage is 0.8 to 1.1.

Part conditions explained

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Used: The product has been previously owned and has been used. It may show signs of wear and tear but is still functional and operational. The condition may vary depending on the specific item and its usage history.

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