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MERLIN GERIN (NKF250D) 250 AMP MCCB

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MOQ : 100 Pieces

MERLIN GERIN (NKF250D) 250 AMP MCCB Specification

Rated Short Circuit Breaking Current
36 kA

Phase
Three Phase

Breaking Capacity
36 kA

Rated Short Circuit Making Current
36 kA

Mechanical Life
10,000 operations

Product Type
Moulded Case Circuit Breaker (MCCB)

Installation Options
Panel mounted

Function
Circuit protection; Overload & Short Circuit Protection

Poles Number
3

Rated Voltage
415V AC

Rated Current
250 Amp

Rated Frequency
50/60 Hz

Curves
D Curve

Temperature Protection
Yes

Weight
Approx. 3.5 kg

Color
Black / Grey

Mounting Type
Fixed

Terminal Type
Lug/bolt type

Operating Temperature Range
-25°C to +70°C

Insulation Voltage (Ui)
690V

Trip Type
Thermal-Magnetic

Enclosure Material
High-impact molded resin

Protection Class
IP20

Accessories
Optional shunt trip, auxiliary contact available

Dimensions
Approx. 155 mm x 105 mm x 70 mm

Endurance Electrical
4,000 cycles

Model Number
NKF250D

Ambient Temperature
40°C rated

MERLIN GERIN (NKF250D) 250 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 MERLIN GERIN (NKF250D) 250 AMP MCCB

Merlin Gerin 250 Amp 3 Pole Mccb Available At Raj Electricals, Bhavnagar, Gujarat, India.

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 Specification :-

Brand :- Merlin Gerin

Model :- NKF250D

Number Of Pole :- 3

Number Of Phase :- 3

Rated Current :- 250A

Breakin Capacity :- 25 kA

Voltage :- 120V

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.

Efficient Circuit Protection

The NKF250D MCCB delivers advanced overload and short circuit protection to ensure uninterrupted power flow and safety in critical operations. Its thermal-magnetic trip mechanism detects faults quickly, minimizing equipment damage and downtime. With a rated current of 250 Amps and a breaking capacity of 36 kA, it excels in commercial and industrial settings.

Designed for Tough Environments

Constructed from high-impact molded resin, the MCCB withstands challenging conditions from -25C to +70C. Its IP20 protection class guards against accidental contact, while mechanical endurance of 10,000 operations assures longevity even in environments demanding frequent switching. The MCCBs dimensions and design facilitate panel mounting for easy installation.

Flexible Installation and Accessories

The NKF250D supports panel mounting and is equipped with lug/bolt type terminals for secure cable connections. Optional accessories such as shunt trip and auxiliary contacts allow extended functional capabilities, including remote tripping and status indication, making it adaptable for diverse system requirements.

FAQs of MERLIN GERIN (NKF250D) 250 AMP MCCB:

Q: How is the MERLIN GERIN NKF250D MCCB installed in an electrical panel?

A: The NKF250D MCCB is designed for panel mounting using its fixed structure. It comes with lug/bolt type terminals, making cabling straightforward and reliable. Ensure the panel adheres to support regulations to match the devices size (approx. 155 mm x 105 mm x 70 mm) and weight (approx. 3.5 kg).

Q: What types of electrical faults does the NKF250D MCCB protect against?

A: This MCCB provides protection against overload and short circuit conditions. Its thermal-magnetic trip type responds quickly to excess current flow, helping to prevent damage to equipment and reduce the risk of fire or further system failures.

Q: When should the shunt trip and auxiliary contact accessories be used?

A: The optional shunt trip and auxiliary contacts should be implemented when remote tripping or additional monitoring is required. These accessories enable integration with control systems, offering enhanced safety and operational flexibility in installations.

Q: Where can the NKF250D MCCB be used for optimal performance?

A: The device performs best in industrial and commercial electrical panels requiring three-phase protection. Its robust construction and temperature tolerance make it suitable for environments ranging from -25C to +70C, with ambient temperature rated at 40C.

Q: What is the rated breaking capacity of the NKF250D MCCB, and why is it beneficial?

A: The NKF250D offers a high breaking capacity of 36 kA at 415V AC. This value indicates the maximum fault current the device can interrupt without damage, ensuring reliable protection in high-power systems and minimizing operational risks.

Q: How does the temperature protection feature enhance the MCCBs safety?

A: Temperature protection is achieved via the thermal component of the trip mechanism. It monitors heat buildup caused by prolonged overcurrent situations to prevent overheating, assuring long-term reliability and guarding against fire hazards.

Q: What is the mechanical life of the NKF250D MCCB, and what does it mean for usage?

A: The mechanical life of the device is rated for 10,000 operations, indicating how many times it can be switched on and off without performance degradation. This ensures the MCCB will remain resilient through repeated maintenance cycles and fault responses in demanding environments.

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