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SIEMENS CONTACTOR - 3TF 49

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SIEMENS CONTACTOR - 3TF 49 Specification

Connector Type
Screw Type

Operating Temperature
-25°C to +55°C

Humidity %
Up to 95% RH

Mounting Type
DIN Rail / Panel Mount

Shape
Rectangular

Efficiency
High

Surface Finish
Matte

Feature
Durable, Reliable Switching

Overheating Protection
YES

Power Factor
0.85

IP Rating
IP20

Insulation Material
Thermoplastic

Product Type
Contactor

Application
Motor Control, Industrial Automation

Protection Level
IP20

Frequency (MHz)
50/60 Hz

Rated Voltage
690V AC

Energy Consumption
Low

Output Type
Auxiliary Contacts

Color
Grey & Black

Dimension (L*W*H)
120 x 85 x 115 mm

Weight
2.45 kg

Input Voltage
220V AC Coil

Size
Standard

Phase
Three Phase

Connection Type
Screw Terminal

No Of Poles
3

Material
High-Grade Plastic, Copper & Silver Contacts

Rated Insulation Voltage
1000V

Coil Frequency
50/60 Hz

Short-time withstand current (Icw)
650A for 1s

Series
3TF49

Electrical Durability
1.5 Million Operations

Minimum Switching Current
10 mA

Control Voltage
220V AC

Mechanical Durability
10 Million Operations

Utilization Category
AC-3

Release Voltage
0.2-0.75 x Us

Contact Material
Silver alloy

Conventional Thermal Current (Ith)
80A

Standards Compliance
IEC 60947-4-1

Power Consumption of Coil
Approx. 13VA AC

Operating Position
Any Position

Auxiliary Contacts Configuration
2NO+2NC

Ambient Storage Temperature
-40°C to +80°C

Pollution Degree
3

SIEMENS CONTACTOR - 3TF 49 Trade Information

Payment Terms
Cash in Advance (CID)

Sample Available
Yes

Main Domestic Market
All India

About SIEMENS CONTACTOR - 3TF 49

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.

Superior Performance in Challenging Environments

The SIEMENS 3TF 49 Contactor excels under demanding industrial conditions, supporting up to 80A thermal current and short-time withstand current of 650A for 1 second. Its high-quality silver alloy contacts guarantee reliable operation, while the durable thermoplastic casing and IP20 protection level ensure safety. This versatility makes it ideal for robust automation applications and motor control tasks.

Flexible Installation Options

Designed for convenience, the 3TF 49 allows installation in any position and supports both DIN rail and panel mounting. Its compact rectangular shape (120 x 85 x 115 mm), along with screw-type terminals, provides easy integration into electrical panels and machinery. The contactor's construction ensures secure and lasting connections, even in high-vibration environments.

Energy Efficiency and Longevity

With a coil power consumption of just 13VA and a high power factor (0.85), this contactor operates economically, minimizing energy costs. Its reliable switching mechanisms and durable materials-copper, silver, and high-grade thermoplastic-provide exceptional longevity, making it a cost-effective solution for continuous industrial usage.

FAQ's of SIEMENS CONTACTOR - 3TF 49:

Q: How does the SIEMENS 3TF 49 Contactor enhance motor control in industrial environments?

A: The SIEMENS 3TF 49 ensures reliable motor control with its robust 80A current rating, durable silver alloy contacts, and high switching durability. Its compliance with IEC 60947-4-1 and IP20 rating provides safety and efficient protection in challenging industrial settings.

Q: What is the correct process for mounting the 3TF 49 Contactor?

A: You can install the 3TF 49 contactor using either DIN rail or panel mounting, as it accommodates both. Its flexible design and screw-type terminals make wiring and mounting straightforward in any suitable orientation within your panel.

Q: When should the contactor's overload protection feature be utilized?

A: Overload protection is a built-in safety measure that activates when the current exceeds safe operating limits, protecting your motor and system from damage. It should be used whenever the contactor is part of a motor control or automation circuit.

Q: Where can the SIEMENS 3TF 49 be used?

A: This contactor is suitable for motor control and automation applications in factories, manufacturing plants, and industrial facilities where high durability, safe switching, and reliable performance are essential.

Q: What are the main benefits of using silver alloy contacts in this contactor?

A: Silver alloy contacts offer superior electrical conductivity and resistance to wear, which translates to reliable switching performance and longer contact life, reducing maintenance needs and enhancing operational efficiency.

Q: How does the 3TF 49 perform under various temperature and humidity conditions?

A: The contactor operates dependably in temperatures from -25C to +55C and can be stored between -40C to +80C. It withstands high humidity levels up to 95% RH, making it well-suited for varied and demanding environments.

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