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Siemens 3RT1075-6NB36

Name: 3RT1075-6NB36
Brand: Siemens
SKU: 3RT1075-6NB36
Price: 993.94 GBP
Availability: InStock

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Marvo Stock ID MV-7DEG

HS Code 85364900

SKU 3RT1075-6NB36

Condition New unboxed

Warranty 12 months

Weight (kg) 13.00

Length (mm) 620.00

Width (mm) 480.00

Height (mm) 320.00

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Specification & Description

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Specification & Description

Specification	Description
Part Number	3RT1075-6NB36
Alternative Part Number	3RT10756NB36
Manufacturer	Siemens
Product Type	Power Contactor
Size	S12
Protection Class IP (Front)	IP00 (IP20 with cover/box terminal)
Degree of Pollution	3
Installation Altitude	Up to 2,000 metres above sea level
Ambient Operating Temperature	-25°C to +60°C
Mechanical Operating Cycles	10,000,000 (5,000,000 with electronics-compatible auxiliary switch block)
Main Circuit Contact Configuration	3 NO contacts for main contacts
Operational Current (AC-3, 400 V)	400 A
Operational Current (AC-1, 400 V)	430 A at 40°C, 400 A at 60°C
Control Supply Voltage (DC)	21 to 27.3 V
PLC-Control Input Type	Type 2 according to IEC 60947-1
Consumed Current at PLC-Control	Maximum 20 mA
Voltage at PLC-Control Input	24 V
Operating Range Factor (Voltage)	0.8 to 1.1
Surge Suppressor Design	With varistor
Apparent Pick-Up Power (AC, 50 Hz)	750 VA
Closing Power of Magnet Coil (DC)	800 W
Holding Power of Magnet Coil (DC)	3.6 W
Closing Delay	60 to 90 ms
Opening Delay	80 to 100 ms
Arcing Time	10 to 15 ms
Auxiliary Circuit Contact Type	2 NC instantaneous contacts, 2 NO instantaneous contacts
Operating Current at AC-12	Maximum 10 A
Mounting Type	Screw fixing
Side-by-Side Mounting	Yes
Dimensions (H x W x D)	214 mm x 160 mm x 225 mm
Required Spacing	Forwards: 20 mm, Upwards: 10 mm, Downwards: 10 mm, At the side: 0 mm (10 mm for live parts)
Connection Bar Width	25 mm
Connection Bar Thickness	6 mm
Hole Diameter	11 mm
Number of Holes	1
Electrical Connection Type	Connection bar for main circuit, screw-type terminals for auxiliary/control circuit
Conductor Cross-Section (Main)	Stranded: 70 to 240 mm²
Conductor Cross-Section (Auxiliary)	Solid or stranded: 0.5 to 4 mm², Finely stranded with core end processing: 0.5 to 2.5 mm²
Safety-Related Data	Mirror contact according to IEC 60947-4-1, B10 value: 1,000,000
Protection Class IP (Front)	IP00; IP20 with box terminal/cover
Touch Protection	Finger-safe for vertical contact from the front with box terminal/cover
Suitability for Use	Safety-related switching OFF
Certificates/Approvals	General Product Approval, EMC, Type Examination Certificate

The Siemens 3RT1075-6NB36 power contactor is a robust and reliable switching device designed to handle high power circuits, making it an essential component for industrial applications. This contactor is engineered to control motors and loads efficiently within AC-3 400 A and 200 kW at 400 V, ensuring smooth operation in demanding environments.

Crafted for versatility, the 3RT1075-6NB36 operates with both alternating current (AC) and direct current (DC), with a control supply voltage range of 21 to 27.3 V. It features an integrated electronic operating mechanism with a 24 V DC PLC interface, which facilitates seamless integration into programmable logic controller systems.

The contactor boasts a size S12 frame and is equipped with bar connections for the main circuit, alongside screw terminals for auxiliary and control circuits. It includes 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts, providing flexibility for various circuit configurations.

Durability is a key attribute of the 3RT1075-6NB36, with a mechanical service life of up to 10 million operating cycles, ensuring long-term reliability and reduced maintenance needs. The device is designed with safety in mind, featuring a protection class of IP00 on the front, which can be enhanced to IP20 with the addition of a box terminal or cover.

This power contactor is suitable for a wide range of industrial applications, including manufacturing, automation, and process control, where consistent performance and endurance are paramount. Its robust construction and reliable operation make it a valuable asset for managing high-capacity electrical loads with precision and ease.

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.

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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

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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 is the size of the contactor?

The contactor is of size S12, which is a designation used by Siemens to indicate the physical and electrical capacity of the contactor.

What is the protection class of the contactor on the front?

The protection class on the front of the contactor is IP00, which means it is not protected against any ingress of solid objects or water. It is advisable to install it within a secure enclosure for protection.

Can this contactor be used in safety-related applications?

Yes, the contactor is suitable for safety-related switching OFF applications, as it features a mirror contact according to IEC 60947-4-1.

What are the operational current ratings for this contactor?

The operational current ratings for the contactor at AC-3 at 400 V are rated at 400 A. It also has different current ratings for other AC and DC applications, which can be found in the detailed specifications.

What type of connections does the contactor support?

The contactor supports a connection bar for the main current circuit and screw-type terminals for auxiliary and control circuits, as well as for the magnet coil.

What are the dimensions of the contactor?

The contactor has a height of 214 mm, a width of 160 mm, and a depth of 225 mm.

What is the mechanical service life of the contactor?

The mechanical service life of the contactor is typically 10 million operating cycles, which can vary with the addition of auxiliary switch blocks.

What is the ambient temperature range for operating this contactor?

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

Is side-by-side mounting possible with this contactor?

Yes, side-by-side mounting is possible with this contactor, allowing for efficient use of space within control cabinets.

What is the required spacing for side-by-side mounting?

When mounting side-by-side, a spacing of 20 mm forwards, 10 mm upwards, and 10 mm downwards is required. There is no additional spacing required at the side.

Part conditions explained

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New unsealed: The product is in its original packaging, but the packaging has been opened or unsealed. It has never been used and should be in near pristine condition.

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New unboxed: The product does not come in its original packaging, but it has never been used and is in great working condition.

Refurbished: The product has been previously used, but it has undergone a thorough refurbishment process to restore it to a like-new or functional condition. Any defects or issues have been addressed, making it suitable for reuse.

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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