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SIEMENS CONTACTOR - 3TF 46

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SIEMENS CONTACTOR - 3TF 46 Specification

Operating Temperature
-25°C to +55°C

IP Rating
IP20

Insulation Material
Thermoplastic

Shape
Rectangular

Humidity %
Max. 95% (non-condensing)

Connector Type
Screw Connectors

Feature
Highly Durable, Compact Design, Reliable Switching

Efficiency
High

Power Factor
0.9

Overheating Protection
Yes (With Thermal Overload Relay)

Surface Finish
Enamel Coated

Mounting Type
DIN Rail / Panel Mounting

Product Type
Contactor

Application
Switching and Protection in Electric Circuits

Protection Level
IP20

Frequency (MHz)
50/60 Hz

Rated Voltage
690 V AC

Energy Consumption
9 VA (pick-up), 1.8 VA (holding)

Output Type
NO + NC contacts

Color
Grey/Black

Dimension (L*W*H)
120 mm x 85 mm x 185 mm

Weight
2.6 kg

Size
Standard

Phase
Three Phase

Input Voltage
230 V AC (Coil Voltage)

Material
High Grade Plastic & Metal

Connection Type
Screw Terminal

No Of Poles
3

Model Number
3TF46

Electrical Endurance
1 million operations (AC3)

Contact Material
Silver Alloy

Coil Consumption
Approx. 80 VA

Max. Operating Voltage
1.1 x Un

Shock Resistance
15g

Mechanical Endurance
10 million operations

Control Voltage Range
110-230V AC (varies by model)

Min. Operating Voltage
0.85 x Un

Auxiliary Contacts
2 NO + 2 NC

Rated Operational Current (Ie)
60A (AC3) at 400V

Vibration Resistance
5g

SIEMENS CONTACTOR - 3TF 46 Trade Information

Sample Available
Yes

Main Export Market(s)
Asia

Main Domestic Market
All India

About SIEMENS CONTACTOR - 3TF 46

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.

Compact and Reliable Engineering

The SIEMENS 3TF 46 contactor is built for lasting performance with a compact rectangular design and advanced materials. Its high mechanical and electrical endurance underscores its dependability in heavy-duty applications. The robust enclosure and IP20 rating help safeguard internal components, extending product lifecycle even in challenging conditions.

Versatile Application and Mounting

Suitable for use in distribution, export, or manufacturing environments, the 3TF 46 fits seamlessly into various three-phase switching and protection schemes. Featuring DIN rail or panel mounting, it offers easy and secure installation. Its 2 NO + 2 NC auxiliary contacts and screw terminal connections ensure flexibility and convenience for diverse wiring requirements.

FAQs of SIEMENS CONTACTOR - 3TF 46:

Q: How can the SIEMENS 3TF 46 contactor be installed in an electrical panel?

A: The SIEMENS 3TF 46 contactor supports both DIN rail and panel mounting, enabling flexible installation within control cabinets or distribution boards. Connection is made using screw terminals to ensure reliable electrical contact.

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

A: Silver alloy contacts offer superior conductivity and durability, minimizing voltage drop, reducing contact wear, and ensuring long-lasting, reliable switching performance in demanding applications.

Q: When should the contactors thermal overload relay be utilized?

A: The integrated thermal overload relay should be used whenever circuit protection against overheating is required. It helps prevent damage to motors or equipment when excessive current or temperature conditions are detected.

Q: Where is the SIEMENS 3TF 46 typically used?

A: This contactor is commonly employed in industrial control panels, distribution systems, and machinery, providing switching and protection for three-phase circuits, particularly in applications requiring high reliability and frequent operation.

Q: What is the process for wiring auxiliary contacts on the contactor?

A: Auxiliary contacts (2 NO + 2 NC) can be wired using the provided screw connectors. Its important to reference the wiring diagram for correct connection, which allows for integration with control circuits such as signaling, interlocking, or feedback functions.

Q: How does the contactor perform in harsh environmental conditions?

A: With its shock resistance up to 15g, vibration resistance up to 5g, and capability to operate across -25C to +55C temperatures and up to 95% non-condensing humidity, the 3TF 46 is designed to maintain stable operation in challenging industrial settings.

Q: What are the efficiency-related advantages of using the SIEMENS 3TF 46 contactor?

A: The 3TF 46 features low energy consumption during operation (9 VA for pick-up and 1.8 VA for holding), high switching efficiency, and a power factor of 0.9, which contribute to reduced operational costs and improved system performance.

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