MERLIN GERIN (NS250H) 250 AMP MCCB

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MOQ : 100 Pieces

MERLIN GERIN (NS250H) 250 AMP MCCB Specification

Phase
Three Phase

Rated Short Circuit Making Current
75 kA

Rated Short Circuit Breaking Current
36 kA

Breaking Capacity
36 kA at 415V AC

Mechanical Life
Up to 20,000 cycles

Product Type
MCCB (Moulded Case Circuit Breaker)

Installation Options
Fixed

Function
Protection of electrical circuits against overload and short-circuit

Poles Number
3 Pole

Rated Voltage
690V AC

Rated Current
250A

Rated Frequency
50/60 Hz

Curves
H Curve

Temperature Protection
Thermal and Magnetic Release

Weight
Approx. 3.4 kg

Color
Grey / Orange

MERLIN GERIN (NS250H) 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 (NS250H) 250 AMP MCCB

MCCB stands forMolded 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

The NS250H MCCB offers reliable safeguarding against both overloads and short circuits. Its H-curve and high breaking capacity (36 kA at 415V AC) suit demanding power distribution networks, ensuring system stability and equipment safety. The dual trip unit (electronic/thermal-magnetic) provides responsive, precise operation for critical installations.

Versatile Installation & Configuration

With support for panel mounting and multiple connection methods (front connection, busbar, or cable), the MCCB adapts easily to varied infrastructure requirements. The fixed installation format plus optional auxiliary contacts further enhance customization for specific operational conditions and monitoring needs.

Rugged Design & Wide Operating Range

Engineered for reliability, the NS250H excels across a broad temperature spectrum from -25C to +70C, providing dependable protection in harsh or variable environments. The IP20 degree of protection limits dust ingress, contributing to system longevity and safety.

FAQs of MERLIN GERIN (NS250H) 250 AMP MCCB:

Q: How does the NS250H MCCB protect electrical circuits?

A: The NS250H safeguards circuits using an H-curve trip characteristic with both electronic and thermal-magnetic release mechanisms. This advanced design responds to overloads and short circuits, preventing equipment damage and system downtime by interrupting fault currents swiftly up to 36 kA at 415V AC.

Q: What installation options and connection types does this MCCB support?

A: This breaker is designed for fixed, panel-mounted installations and allows versatility in connectionsfront, busbar, or cablemaking it suitable for varied setups in commercial and industrial distribution panels.

Q: When is the best scenario to use the NS250H MCCB?

A: The NS250H is optimal for protecting three-phase electrical installations requiring high reliability, especially in environments with variable temperatures and where frequent operational cycles are needed (up to 20,000 mechanical life).

Q: Where should I mount the NS250H MCCB for ideal performance?

A: Install the NS250H in distribution or main panels within electrical rooms, ensuring adequate ventilation and accessibility for inspection. Its panel-mounted design is built for fixed installations in control cabinets or switchboards.

Q: What are the benefits of its optional auxiliary contacts?

A: Optional auxiliary contacts enable remote monitoring, signaling, and integration with control/automation systems. This enhances operational awareness and facilitates quick response to circuit protection events.

Q: How does the MCCB ensure long-term operational durability?

A: Built with robust mechanical construction, the NS250H provides up to 20,000 mechanical cycles and operates reliably in temperatures from -25C to +70C, ensuring durability even in demanding industrial environments.

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