Can this contactor be used for DC applications?

It is primarily designed for AC applications. For DC use, significant derating is required, and electrical life may be reduced. Consult manufacturer data for DC ratings or use contactors specifically rated for DC switching.

SIEMENS 3RT full range of AC contactors 3RT1456-6AP36 for motor control systems

Name: SIEMENS 3RT full range of AC contactors 3RT1456-6AP36 for motor control systems
Brand: Beijing Zhongping Technology Co., Ltd.
SKU: 2119225402

Beijing, ChinaBeijing Zhongping Technology Co., Ltd.

US$340.65

1 Piece

Product profile

Customization

Available

Electricity Type

Number of Pole

Model NO.

3RT1456-6AP36

Phase

Main Circuit Rating Voltage

380V

Main Circuit Rating Current

Not Involving

Type

Ac Contactors

Transport Package

Carton

Specification

one

Trademark

SIEMENS

Origin

Germany

HS Code

8536300000

Production Capacity

1000/Year

Key features

High Electrical Life: Rated for 1.5 million operations under AC-3 duty for long-term reliability.

Energy-Efficient Coil: Reduces power consumption by 40-60% and minimizes heat generation.

Robust Protection: Withstands 50kA short-circuit currents with appropriate fuses.

Transparent Housing: Allows visual inspection of contacts and moving parts without disassembly.

Versatile Application: Ideal for motor control, HVAC, and industrial heating systems.

Flexible Customization: Supports customization from samples, designs, and full customization options.

Multiple Coil Options: Available in 24V DC, 110V AC, 230V AC, and 400V AC for diverse needs.

Company profile

High Repeat Buyers ChoiceIn-stock CapacityLow MOQ100% Finished Products Inspection

Beijing Zhongping Technology Co., Ltd.

Beijing, China

CertifiedBusiness Type: Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 3 years CertifiedNearest Port: Tianjin PortAverage Response Time: ≤4.52h

AI-Powered supplier vetting

SummaryThe supplier is identified as a professional technical supplier providing 3D software design, ODM, industrial automation, product sales, installation, commissioning, maintenance, and repair services. It supports extensive customization and has documented finished-product inspection instructions, quality assurance, and stated lead times within 15 working days in both peak and off-peak seasons. However, it has no overseas showrooms, agents, branches, or offline trade-show experience, and no new products were developed in the past year. Supplier-management, corrective-action, and complaint-handling procedures exist but lack written records. Certification is listed as NIL, quality-control staffing is below five, and R&D engineer experience totals two years. Export activity is established, with 31%–40% of sales from exports and three years of export experience. Evidence of specific customer cases is not provided.

Supplier typeThe supplier explicitly identifies itself as a professional technical supplier and provides industrial automation-related one-stop services, including product sales, solutions, installation and commissioning, maintenance, and repair. Its stated focus covers cement, packaging, printing, rubber, textile, and machine-tool industries.

CertificationsSupplier management system certification is explicitly recorded as NIL. The provided information therefore does not demonstrate possession of relevant certifications.

After-Sales capabilityThe supplier states that it provides installation, commissioning, maintenance, and repair services and has a quality-assurance system. However, it has no overseas showroom, agent, or branch, and its complaint-handling procedure has no written records, limiting evidence of formalized after-sales execution.

Production capacityThe supplier reports lead times within 15 working days during both peak and off-peak periods, maintains written and uniformly followed finished-product inspection instructions, and lists annual production output above the stated threshold. Nevertheless, quality-control staffing is below five and the service-capability assessment procedure has no records.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. The same capability is confirmed in two slices, providing direct evidence of broad customization coverage.

Product Q&A

Q:What is the difference between AC-3 and AC-1 utilization categories?

AC-3 applies to squirrel-cage motor starting and switching, involving high inrush currents (6-8 times rated). AC-1 applies to non-inductive loads like heaters. The 3RT1456-6AP36 is rated for AC-3, optimized for motor control challenges.

Q:How do I select the appropriate coil voltage for my application?

Select based on control circuit voltage (e.g., 24V DC for safety, 230V/400V AC for direct connection). Consider power supply stability and facility voltage fluctuations. Verify the specific code in the article number.

Q:What protection devices should be used with this contactor?

Use appropriately rated fuses or circuit breakers for short-circuit protection (up to 50kA). Coordinate with overload relays (e.g., 3RU11/3RB3) for motor overload protection to meet international standards.

Q:What maintenance is required for reliable operation?

Perform regular visual inspections for contamination and erosion. Keep the unit clean and dry. Use the transparent housing for easy checks. Replace contacts if erosion exceeds 50% thickness or if noise/sticking occurs.

Q:How does the energy-efficient coil design benefit operation?

It reduces holding power by 40-60%, lowering heat generation and improving system reliability. The DC-operated coil with built-in rectifier ensures smooth operation, reduced noise, and lower total cost of ownership.