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SIEMENS 3TF 47 STAR DELTA STARTER

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SIEMENS 3TF 47 STAR DELTA STARTER Specification

Power Factor
0.85

Humidity %
Up to 95% (non-condensing)

Mounting Type
Surface/Panel Mount

Overheating Protection
Provided (Thermal Overload Relay)

Insulation Material
Polycarbonate

Surface Finish
Powder Coated

Feature
Auto/Manual operation, Overload Protection

IP Rating
IP54

Shape
Rectangular

Connector Type
Screw Connection

Operating Temperature
-5C to +55C

Efficiency
High

Product Type
Star Delta Starter

Application
Motor Starting and Protection

Protection Level
IP54

Frequency (MHz)
50/60 Hz

Rated Voltage
415 V AC

Energy Consumption
Low

Output Type
Auxiliary Contact Output

Color
Grey & Black

Dimension (L*W*H)
280 mm x 200 mm x 170 mm

Weight
5.2 kg

Phase
Three Phase

Size
Standard

Input Voltage
415 V AC

Material
High Grade Plastic and Metal

Connection Type
Screw Terminal

No Of Poles
3

Current Rating
Up to 63A

Coil Voltage Range
110V/230V/415V AC

Ambient Temperature
-5C to +55C

Rated Insulation Voltage
690V

Degree of Protection
IP54

Short Circuit Protection
Fuse/MCB Required

Switching Sequence
StarDeltaRun

Contact Configuration
3NO+2NC

Mounting Arrangement
DIN Rail/Panel Mount

Starter Type
Fully Automatic Star Delta

Auxiliary Contact
Available

Model Number
3TF 47

Mechanical Durability
Over 1 Million Operations

Control Voltage
230V AC

SIEMENS 3TF 47 STAR DELTA STARTER Trade Information

Payment Terms
Cash in Advance (CID)

Sample Available
Yes

Main Export Market(s)
Asia

Main Domestic Market
All India

About SIEMENS 3TF 47 STAR DELTA STARTER

Star/Delta starters are probably the most common reduced voltage starters. They are used in an attempt to reduce the start current applied to the motor during start as a means of reducing the disturbances and interference on the electrical supply.

Fully Automatic Star Delta Starting

With the SIEMENS 3TF 47, you benefit from a fully automatic star-delta starting sequence. This minimizes inrush currents and mechanical stress on motors, leading to extended equipment life. Its switching logic smoothly transitions from star to delta, ensuring optimal performance and minimal operator intervention.

Durable and Safe Construction

Engineered with high-grade plastic and metal, the 3TF 47 is built to withstand tough industrial conditions. It features IP54 protection, a rated insulation voltage of up to 690V, thermal overload relay for overheating protection, and fuse/MCB-based short-circuit safeguarding. The powder-coated finish enhances durability against corrosion and environmental factors.

Versatile Installation and Efficient Operation

Offering both DIN rail and panel mounting options, this starter accommodates various installation needs. With low energy consumption, high mechanical durability, and auxiliary contact output, it delivers effective motor control and monitoring. The starter operates efficiently in humidity up to 95% and temperatures from -5C to +55C.

FAQ's of SIEMENS 3TF 47 STAR DELTA STARTER:

Q: How does the SIEMENS 3TF 47 Star Delta Starter function in motor starting applications?

A: The SIEMENS 3TF 47 utilizes a star-delta-run switching sequence, automatically reducing the starting current and minimizing mechanical stress during motor startup. This ensures a smooth transition to full speed, protecting both the motor and the power system.

Q: What type of protection does the 3TF 47 provide for motors?

A: This starter offers robust protection through its IP54 enclosure, thermal overload relay for overheating, and compatibility with fuse or MCB devices for short-circuit events, safeguarding motors from electrical and thermal damages.

Q: Where can the SIEMENS 3TF 47 be installed?

A: Thanks to its DIN rail or panel mounting arrangement and surface/panel mount compatibility, the starter can be easily installed in control panels or machinery setups in various industrial environments.

Q: When should I use a fully automatic star delta starter like this model?

A: For motors with high starting currents, typically above 5HP, and three-phase applications, a fully automatic star delta starter like the 3TF 47 is ideal for reducing electrical and mechanical surges during startup.

Q: What are the benefits of the auxiliary contacts included with this starter?

A: The auxiliary contacts (3NO+2NC) facilitate integration into control circuits, allowing additional signaling, interlocking, or remote control, enhancing the starter's versatility within automation systems.

Q: How do I ensure correct operation and protection with this starter?

A: Properly connect the starter using screw terminals, ensure appropriate fuse/MCB protection is in place, and set the thermal overload relay to the desired threshold to safeguard against overheating and short-circuits.