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SIEMENS CONTACTOR - 3TF 45

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SIEMENS CONTACTOR - 3TF 45 Specification

IP Rating
IP20

Power Factor
0.7

Efficiency
High

Connector Type
Screw Connectors

Overheating Protection
Required (Thermal Overload Relay Auxiliary)

Mounting Type
DIN Rail / Panel Mounting

Feature
High switching reliability, Long electrical life

Humidity %
Up to 95% RH

Surface Finish
Matte

Operating Temperature
-5°C to +40°C

Insulation Material
Thermoplastic Resin

Shape
Rectangular

Product Type
Contactor

Application
Industrial Motor Control

Protection Level
IP20

Frequency (MHz)
50/60

Rated Voltage
415 V AC

Energy Consumption
9 VA (Pull-in), 1.8 VA (Holding)

Output Type
NO+NC

Color
Grey & Black

Dimension (L*W*H)
90mm x 85mm x 105mm

Weight
1.2 kg

Phase
Three Phase

Size
3TF45

Input Voltage
230 V / 415 V

Connection Type
Screw Terminal

No Of Poles
3

Material
Moulded Plastic & Copper

SIEMENS CONTACTOR - 3TF 45 Trade Information

Payment Terms
Cash in Advance (CID)

Sample Available
Yes

Main Domestic Market
All India

About SIEMENS CONTACTOR - 3TF 45

3TF power contactors are suitable for switching and controlling squirrel cage and slip-ring motors as well as other AC loads, such as solenoids, capacitors, lighting loads, heating loads and transformer loads.

Exceptional Electrical Performance

The 3TF 45 contactor excels in demanding industrial environments, supporting up to 63A rated current and conforming to AC-3 utilization category. Its silver alloy contacts and advanced insulation materials optimize conductivity and durability, while the high mechanical lifespan of 10 million cycles ensures reliable performance in continuous operations.

Flexible Mounting and Application

Installing the SIEMENS 3TF 45 contactor is versatile-choose between DIN rail or panel mounting to suit different control panel setups. Its screw terminal connections facilitate straightforward wiring, while IP20 protection level secures the contactor against accidental touch, making it suitable for various factory and motor control centers.

Energy Efficient and Secure Operation

Featuring low energy consumption, the contactor uses only 9 VA when activated and drops to 1.8 VA in holding mode. For comprehensive safety, fuse coordination of Type 2 and compatibility with thermal overload relay auxiliaries help prevent overheating, elevating equipment lifespan and operational security.

FAQ's of SIEMENS CONTACTOR - 3TF 45:

Q: How is the SIEMENS 3TF 45 contactor installed in a control panel?

A: The contactor offers both DIN rail and panel mounting options, allowing flexibility in installation depending on your control panel configuration. Secure wiring is achieved using the provided screw terminals for quick and reliable connectivity.

Q: What applications is the 3TF 45 suitable for?

A: This contactor is ideal for industrial motor control in three-phase systems thanks to its high thermal capacity, robust materials, and long mechanical life. It is commonly used by manufacturers, distributors, and traders in heavy-duty operations.

Q: When should I use a thermal overload relay with this contactor?

A: Use a thermal overload relay auxiliary for overheating protection, especially during prolonged motor operations or in environments with fluctuating loads. This ensures the contactor operates safely and prevents damage to connected equipment.

Q: Where is the 3TF 45 manufactured and distributed?

A: The SIEMENS 3TF 45 contactor is produced in Germany and is available internationally via authorized distributors, exporters, manufacturers, suppliers, and traders.

Q: How does the contactor ensure safe operation under short-circuit conditions?

A: Short-circuit protection is achieved using fuse coordination Type 2, which guards the contactor and connected circuits from electrical faults, thereby reducing downtime and maintenance costs.

Q: What benefits does the silver alloy contact material offer?

A: Silver alloy contacts provide superior conductivity and resistance to wear, enhancing the contactor's electrical efficiency and contributing to longer operational life even in high-frequency switching environments.

Q: What is the process for wiring and connecting the contactor?

A: The 3TF 45 contactor uses screw connectors, allowing straightforward wiring. Ensure input voltage matches either 230V or 415V AC as specified, connect auxiliaries (1NO + 1NC), and use the designated screw terminals for secure installation in both industrial and commercial settings.

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