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Mitsubishi SN-125 Contactor

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Mitsubishi SN-125 Contactor Specification

Overheating Protection
Available (with Aux Relay/Overload Relay Attachment)

Humidity %
Max 95% RH, Non-condensing

IP Rating
IP20

Efficiency
High Switching Efficiency

Power Factor
0.8 min

Operating Temperature
-5Â°C to +55Â°C

Insulation Material
Thermoplastic Resin

Connector Type
Screw Clamp

Shape
Rectangular

Surface Finish
Matte

Feature
High Durability, Easy Mounting, Arc Chute Design

Mounting Type
Panel Mount

Product Type
Air Break Contactor

Application
Industrial Motor Control, Switching Circuits

Protection Level
IP20

Frequency (MHz)
50/60 Hz

Rated Voltage
690V AC

Energy Consumption
10-12 VA (Hold) / 110-120 VA (Pick-up)

Output Type
Electromechanical

Color
White & Black

Dimension (L*W*H)
120mm x 141mm x 137mm

Weight
2.7 kg

Input Voltage
220-240V AC (Coil Voltage)

Size
Standard IEC Size

Phase
Three Phase

Connection Type
Screw Terminal

Material
Plastic, Copper & Silver Alloy Contacts

No Of Poles
3

Electrical Endurance
1 million operations (AC-3)

Coil Consumption
10 VA (at 50Hz), 11 VA (at 60Hz)

Rated Current
125A (AC-3 Duty)

Contact Material
Silver Alloy

Mechanical Endurance
10 million operations

Auxiliary Contacts
2NO + 2NC (Up to 6 auxiliary possible)

Short Circuit Protection
Fused – 100kA

Control Voltage Options
24V, 48V, 110V, 220V AC/DC available

Mitsubishi SN-125 Contactor Trade Information

Payment Terms
Cash in Advance (CID)

Sample Available
Yes

Main Domestic Market
All India

About Mitsubishi SN-125 Contactor

A contactor is an electrical device which is used for switching an electrical circuit on or off. ... These contacts are in most cases normally open and provide operating power to the load when the contactor coil is energized. Contactors are most commonly used for controlling electric motors.

High Durability and Efficient Performance

The SN-125 contactor stands out for its superior endurance, capable of performing up to 10 million mechanical and 1 million electrical operations. Its high-energy efficiency, coupled with overload protection and quality silver alloy contacts, ensures reliable switching for heavy-duty motors and industrial processes.

Versatile Applications and Flexible Mounting

Designed for industrial motor control, the SN-125 offers easy panel mounting and comes in a standard IEC size. Its three-phase operation, wide control voltage range, and efficient arc chute design make it suitable for diverse environments and requirements.

FAQ's of Mitsubishi SN-125 Contactor:

Q: How do I mount the Mitsubishi SN-125 contactor in an industrial panel setup?

A: The SN-125 contactor is designed for panel mounting using screw terminals and a rectangular shape that conforms to standard IEC dimensions (120mm x 141mm x 137mm). Installation should be performed by qualified personnel to ensure secure connection and optimal safety.

Q: What are the benefits of the auxiliary contacts, and how many can be installed?

A: The SN-125 contactor comes with 2NO and 2NC auxiliary contacts and allows up to 6 auxiliaries in total. These contacts enable flexible control configurations, such as signaling, interlocking, and additional feedback in automation processes.

Q: When is it recommended to use the SN-125 contactor for motor control?

A: The SN-125 is ideal for switching and controlling motors up to 125A (AC-3 Duty), especially in applications requiring frequent operation and high reliability, such as manufacturing lines, HVAC systems, and pumping stations.

Q: Where can I purchase authentic Mitsubishi SN-125 contactors?

A: Authentic SN-125 contactors are available through Mitsubishi's official distributors, authorized exporters, suppliers, traders, and manufacturers. Purchasing from these channels ensures product authenticity and support.

Q: What process should I follow for selecting the correct control voltage?

A: Assess your application's control system voltage and select from the available options: 24V, 48V, 110V, or 220V AC/DC. Confirm compatibility with the site's electrical network and equipment before making a selection to ensure proper operation.

Q: How does the SN-125 provide short circuit and overheating protection?

A: Short circuit protection is ensured by a fused system rated up to 100kA. Overheating protection can be achieved with an auxiliary relay or overload relay attachment, adding an extra layer of operational safety for motors and switching circuits.

Q: What are the usage advantages of high-quality contact materials in the SN-125?

A: The use of silver alloy contacts in the SN-125 guarantees low contact resistance, minimal wear, and robust performance even under frequent switching cycles. This results in better efficiency and longer service life, especially in demanding industrial environments.

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