nm8-250s-1p-40a chint mccb 1p thermal magnetic 40a, 30ka 415v

nm8-250s-1p-40a chint mccb 1p thermal magnetic 40a, 30ka 415v

Chint NM8-250S-1P-40A 40A 1 pole adjustable thermal magnetic moulded case circuit breaker with 30kA breaking capacity for industrial and commercial circuit protection.

SKU: NM8-250S-1P-40AAlt SKU: NM8250S1P40AMPN: NM8-250S-1P-40A
Price
List Price £231.07 ex VAT
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Why Choose the Chint NM8-250S-1P-40A Moulded Case Circuit Breaker?

The Chint NM8-250S-1P-40A is a robust 1 pole moulded case circuit breaker (MCCB) designed to protect low voltage electrical circuits against overloads and short circuits. As part of the Chint NM8 Series, this thermal magnetic MCCB is suitable for industrial, commercial and OEM applications where reliable circuit protection is essential.

Featuring an adjustable thermal magnetic trip unit, the NM8-250S-1P-40A allows protection settings to be matched to the connected load and installation requirements. Its fixed mounting design and durable construction make it well suited for switchboards, control panels, machinery and low voltage distribution systems.

With a 40A rated current, 1 pole configuration and 30kA breaking capacity, this MCCB provides dependable protection for single pole circuits in demanding electrical environments. It is designed for use in accordance with IEC 60947-2 standards.

Key Advantages

  • 40A moulded case circuit breaker for industrial and commercial circuit protection.
  • 1 pole configuration for single pole low voltage applications.
  • 30kA breaking capacity for reliable fault interruption.
  • Adjustable thermal magnetic trip unit for flexible protection settings.
  • Provides dependable overload and short circuit protection.
  • Suitable for control panels, switchboards and machinery applications.

Key Features

  • Chint NM8 Series moulded case circuit breaker.
  • Model: NM8-250S-1P-40A.
  • Rated current: 40A.
  • 1 pole MCCB construction.
  • Adjustable thermal magnetic protection.
  • 30kA short circuit breaking capacity.
  • Fixed mounting for electrical distribution panels.
  • Designed for overload and short circuit protection.

Reliable MCCB Protection for Low Voltage Systems

Moulded case circuit breakers such as the Chint NM8-250S-1P-40A help protect electrical systems by interrupting damaging overload and short circuit faults. This supports safer operation, improved equipment protection and reduced downtime across industrial and commercial installations.

The adjustable thermal magnetic mechanism enables practical coordination with connected loads and downstream protective devices. This makes the NM8-250S-1P-40A a reliable choice for panel builders, contractors and engineers requiring dependable circuit protection in compact electrical panels.

Typical Applications

  • Industrial control panels.
  • Electrical distribution boards.
  • Commercial electrical installations.
  • OEM machinery and equipment protection.
  • Switchboards and panel boards.
  • Low voltage power distribution systems.

Technical Specifications

Mounting Type Fixed
Application Power distribution
Current 40 A
Phase Single Phase
Manufacturer Chint
Series NM8
Model NM8-250S-1P-40A
Product type Moulded Case Circuit Breaker (MCCB)
Rated current 40A
Number of poles 1
Trip unit Adjustable thermal magnetic
Breaking capacity 30kA
Rated operational voltage 415V AC
Rated insulation voltage 800V
Frequency 50 / 60Hz
Protection type Overload and short circuit protection
Mounting type Fixed panel mounting
Standard IEC 60947-2
Poles 1-pole
Device Type MCCB
Breaking Capacity 30 kA
Trip Unit Thermal-magnetic

Frequently Asked Questions

What is the Chint NM8-250S-1P-40A used for?

It is used to provide overload and short circuit protection for low voltage electrical circuits in industrial and commercial installations.

What is the rated current of this MCCB?

The Chint NM8-250S-1P-40A has a 40A rated current.

How many poles does this circuit breaker have?

This model has a 1 pole configuration, making it suitable for single pole circuit protection applications.

Is the trip unit adjustable?

Yes. This MCCB uses an adjustable thermal magnetic trip unit to help match protection settings to the connected load.

Where is this MCCB typically installed?

It is commonly installed in distribution boards, switchboards, control panels, machinery panels and electrical cabinets.

Trusted by Panel Builders and Electrical Engineers

Chint NM8 moulded case circuit breakers are widely used by panel builders, electrical contractors and industrial engineers for dependable low voltage circuit protection in demanding installations.

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