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LT (d sine) 400A 4P MCCB

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MOQ : 1 Number

LT (d sine) 400A 4P MCCB Specification

Phase
Three Phase

Breaking Capacity
36kA

Mechanical Life
10000 Operations

Rated Short Circuit Breaking Current
36kA

Rated Short Circuit Making Current
72kA

Product Type
Moulded Case Circuit Breaker (MCCB)

Installation Options
Panel Mounting

Function
Overload and Short Circuit Protection

Poles Number
4 Poles

Rated Voltage
415V AC

Rated Current
400A

Rated Frequency
50/60 Hz

Curves
C & D Curve

Temperature Protection
Thermal & Magnetic Release

Weight
4.1 kg (approx)

Color
Grey & Black

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

Operating Voltage Range
200-690V AC

Frame Size
400A Frame

Auxiliary Contacts
Optional

Dimensions (W x H x D)
140 x 255 x 105 mm (approx)

Mounting
Fixed Type

IP Protection Class
IP20

Trip Type
Thermal-Magnetic

LT (d sine) 400A 4P MCCB Trade Information

Minimum Order Quantity
1 Number

Payment Terms
Cash Advance (CA), Cash in Advance (CID)

Sample Available
Yes

Main Export Market(s)
Asia

Main Domestic Market
All India

About LT (d sine) 400A 4P MCCB

L&T 400A 4P Mccb Available In Stock At Raj Electricals, Bhavnagar, Gujarat.

We are engaged in the supply, dealing, distribution, export and import of the widest range of electrical and electronic items that would suit every type of project, economy and medium.

Product Description :-

Type :- Moulded Case Circuit Breaker

Brand :- L&T (d sine)

Ampere :- 400

Number Of Poles :- 4

Model Number :- DN3-400N

Breaking Capacity :- 50 kA
Voltage :- 415V

Frequency :- 50 Hz

We Supply Our Products In All Over India And Also In Foreign Countries.

For More Details Contact : 9426838080.

Website: www.rajelectrics.com.

Email: raj_electricals@hotmail.com.

Advanced Safety and Protection

Equipped with both thermal and magnetic release mechanisms, the LT (d sine) 400A 4P MCCB ensures prompt and efficient interruption of hazardous overloads and short circuits. The device is engineered to meet demanding safety requirements in commercial and industrial environments.

Versatile Installation and Usage

Designed for fixed panel mounting, this MCCB fits seamlessly into a wide array of electrical distribution boards. Its compatibility with both C and D tripping curves allows it to serve variable load types, making it ideal for applications ranging from motor protection to general power distribution.

Durability and Reliability

With a mechanical life of up to 10,000 operations and a rugged build, the LT (d sine) 400A MCCB provides long-term service while minimizing maintenance demands. Its IP20 protection and wide operating temperature assure dependable function in diverse installation scenarios.

FAQ's of LT (d sine) 400A 4P MCCB:

Q: How do I install the LT (d sine) 400A 4P MCCB in a panel?

A: This MCCB is designed for fixed type panel mounting. Ensure the panel matches the breaker's dimensions (140 x 255 x 105 mm) and securely attach it using appropriate mounting hardware. Wiring should comply with local electrical codes, and professional installation is recommended.

Q: What is the main function of the LT (d sine) 400A 4P MCCB?

A: Its core function is to protect three-phase electrical systems from overloads and short circuits by interrupting hazardous currents swiftly, thanks to its thermal-magnetic release and high breaking capacity (36kA).

Q: When should auxiliary contacts be considered for this MCCB?

A: Auxiliary contacts are useful when remote signaling or monitoring of the MCCB's status is needed in your control or automation system. They can be specified as optional accessories during ordering or installation.

Q: Where can this MCCB be used effectively?

A: It is suitable for industrial, commercial, and utility power distribution systems requiring high breaking capacity and reliable protection for equipment in three-phase networks within the specified voltage and temperature ranges.

Q: What is the benefit of thermal-magnetic trip type in MCCBs?

A: Thermal-magnetic trip offers dual protection: thermal release reacts to prolonged overloads, while magnetic release responds instantly to high short-circuit currents, ensuring comprehensive safety for electrical installations.

Q: How does the IP20 protection rating of this MCCB impact its application?

A: With IP20 protection, the MCCB is guarded against solid objects larger than 12mm, making it suitable for enclosed or panel-mounted indoor environments, though not for locations with dust, water, or direct environmental exposure.

Q: What process should be followed for safe replacement or maintenance of this MCCB?

A: Before maintenance, ensure all upstream power sources are isolated and the system is de-energized. Trained electricians should follow manufacturer guidelines for inspection or replacement, checking all connections and verifying correct installation afterwards.

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