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Mitsubishi S-N21 Contactor

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Mitsubishi S-N21 Contactor Specification

IP Rating
IP20

Feature
High Durability, Reliable Operation

Mounting Type
DIN Rail Mounting

Power Factor
0.8

Connector Type
Screw Connector

Efficiency
95%

Humidity %
Max 90% RH

Overheating Protection
Built-in Thermal Protection

Insulation Material
Plastic

Operating Temperature
-5°C to +40°C

Surface Finish
Matte

Shape
Rectangular

Product Type
Power Contactor

Application
Motor Control, Switching, Protection

Protection Level
Standard

Frequency (MHz)
50/60 Hz

Rated Voltage
AC 380-415V

Energy Consumption
Low

Output Type
Contact Output

Color
Black & White

Dimension (L*W*H)
80 mm x 47 mm x 95 mm

Weight
0.6 kg

Size
21A

Phase
Three Phase

Input Voltage
AC 220-240V coil

Material
High-grade Plastic & Copper

No Of Poles
3 Poles

Connection Type
Screw Terminal

Mitsubishi S-N21 Contactor Trade Information

Payment Terms
Cash in Advance (CID)

Sample Available
Yes

Main Domestic Market
All India

About Mitsubishi S-N21 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

Superior Durability and Performance

Constructed using high-quality plastic and copper, the S-N21 Contactor delivers exceptional durability and reliability. It achieves a mechanical life span of up to 10 million operations and an impressive electrical life of 1 million operations, making it ideal for demanding industrial tasks. Its robust build is engineered to withstand vibration and shock, ensuring long-term performance even under challenging environmental conditions.

Versatile Applications and Mounting

Designed for motor control, switching, and protection in three-phase systems, the S-N21 suits a wide range of industrial applications. Its compact rectangular shape allows for easy installation on DIN rails, while screw connectors simplify the wiring process. The contactor supports auxiliary contacts for extended control features, enhancing system adaptability and expanding application possibilities.

Efficient and Safe Operation

Operating at a high efficiency of 95% and with low coil consumption (8 VA), the S-N21 maintains reliable performance while conserving energy. It offers built-in thermal protection against overheating, with an IP20 rating to prevent ingress of solid objects. Supporting voltages of AC 220-240V for coil input and AC 380-415V for operation, it ensures safety and stable functioning in diverse environments.

FAQ's of Mitsubishi S-N21 Contactor:

Q: How is the Mitsubishi S-N21 Contactor installed in an electrical panel?

A: The S-N21 is designed for easy DIN rail mounting. Simply attach the contactor to a 35mm standard DIN rail, secure it using the built-in locking system, and connect the wiring to the screw terminals as per the wiring diagram provided by the manufacturer.

Q: What applications is the S-N21 most suitable for and why?

A: This contactor is ideally used for motor control, switching, and protection in three-phase systems. Its robust construction, high switching current (21A), and long operational life make it well-suited for heavy-duty industrial environments where reliability and durability are essential.

Q: When should auxiliary contacts be considered with this contactor?

A: Auxiliary contacts should be used when additional control functions are needed, such as signaling, interlocking, or integrating with automation systems. They are optional and can be added as required by your application's control and monitoring needs.

Q: Where can the S-N21 be operated regarding altitude and environmental conditions?

A: The S-N21 can operate up to altitudes of 2000 meters and within an ambient temperature range of -5C to +40C. It supports humidity levels up to 90% RH, making it versatile for most industrial settings.

Q: What process should be followed for maintenance or inspection?

A: Regularly inspect the contactor for signs of wear, ensure the connectors are tightly secured, and check for dust or debris. Maintenance typically involves cleaning, checking for overheating, and verifying that the thermal protection is functioning correctly to ensure ongoing reliable operation.

Q: How does the S-N21 benefit industrial installations?

A: The S-N21 delivers enhanced safety, reliable motor switching, energy efficiency, and long operational life. Its robust design ensures minimal downtime, while built-in thermal protection safeguards circuits, contributing to improved productivity and lower maintenance costs.

Q: What protective features are included in the S-N21 Contactor?

A: The contactor comes with built-in thermal protection to prevent overheating and has an IP20 rating to guard against the entry of solid objects, enhancing both operator and equipment safety.

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