L&T (d sine - DN3-630D) 630 AMP MCCB

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MOQ : 100 Pieces

L&T (d sine - DN3-630D) 630 AMP MCCB Specification

Rated Short Circuit Making Current
110 kA Peak

Mechanical Life
8000 cycles

Breaking Capacity
50 kA at 415V AC

Rated Short Circuit Breaking Current
50 kA

Phase
Three Phase

Product Type
Moulded Case Circuit Breaker (MCCB)

Installation Options
Fixed, Plug-in, or Drawout

Function
Circuit Protection

Poles Number
3 Pole

Rated Voltage
690 V AC

Rated Current
630 Amp

Rated Frequency
50/60 Hz

Curves
Type D

Temperature Protection
Yes (with inbuilt thermal protection)

Weight
Approx. 9.5 kg

Color
Grey / Black

Type of Release
Thermal-magnetic release

Trip Type
Thermal Magnetic

Protection Class
IP20

Utilization Category
A

Operating Temperature Range
-5°C to +55°C

Endurance (Electrical)
2000 cycles

Rated Insulation Voltage (Ui)
1000 V

Rated Impulse Withstand Voltage (Uimp)
8 kV

Mounting Type
Panel Mount

Adjustable Overload Setting
Yes

L&T (d sine - DN3-630D) 630 AMP MCCB Trade Information

Minimum Order Quantity
100 Pieces

Supply Ability
100 Pieces Per Day

Delivery Time
2 Days

Sample Available
Yes

Main Domestic Market
All India

About L&T (d sine - DN3-630D) 630 AMP MCCB

MCCB stands forA Molded Case Circuit Breaker. It is another type of electrical protection device which is used when load current exceeds the limit of a miniature circuit breaker. The MCCB provides protection against overload, short circuit faults and is also used for switching the circuits.

Advanced Circuit Protection

Engineered for uncompromising circuit protection, the L&T DN3-630D MCCB features a type D curve, robust short circuit capacity, and thermal-magnetic trip system. Both adjustable overload and inbuilt thermal protection offer enhanced safety and flexibility for various load conditions.

Versatile Installation Options

Mount the DN3-630D with ease, choosing from fixed, plug-in, or drawout installation methods. Its panel mount design and compatibility with three-phase systems make it highly adaptable for diverse industrial and commercial applications with seamless integration.

Reliable Performance & Durability

Designed for longevity, this MCCB offers a mechanical endurance of up to 8,000 cycles and electrical endurance of 2,000 cycles. Rated insulation and impulse withstand voltages ensure safe operation even in systems with significant power surges.

FAQ's of L&T (d sine - DN3-630D) 630 AMP MCCB:

Q: How does the L&T DN3-630D MCCB ensure circuit protection?

A: The DN3-630D MCCB employs a thermal-magnetic release mechanism, providing both thermal overload and magnetic short-circuit protection. The adjustable overload setting allows fine-tuning to suit varying operational needs, ensuring superior safety and reliability in circuit management.

Q: What installation methods are available for this MCCB?

A: This MCCB supports flexible installation options, including fixed, plug-in, and drawout types. It's designed primarily for panel mounting, making it straightforward to integrate into existing electrical control setups.

Q: When should the adjustable overload setting be used?

A: The adjustable overload setting is ideal for tailoring protection to different operational loads or applications. It should be adjusted when the circuit's load changes substantially or when deploying the MCCB in environments with variable power demands, to ensure optimal protection.

Q: Where can the L&T DN3-630D MCCB be implemented?

A: This MCCB is suitable for use in industrial facilities, commercial complexes, and infrastructure projects. Its robust construction and high breaking capacity make it adept for protecting circuits in critical and high-load electrical systems.

Q: What is the process for servicing or replacing this MCCB?

A: Servicing or replacement typically involves isolating the circuit, removing the MCCB from its panel-mount location (fixed, plug-in, or drawout), and installing a new or maintained unit. Always follow manufacturer guidelines and safety standards during maintenance.

Q: How does the built-in temperature protection benefit operations?

A: Built-in thermal protection automatically responds to excessive currents caused by overloads, preventing overheating and reducing the risk of fire or equipment failure. This enhances operational safety and prolongs the lifespan of connected equipment.

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