Expert HQ Rochdale: 237 - Select Options
Chint NB1 miniature circuit breakers, known as MCB's can be used in Chint consumer units and Chint distribution boards. They can also be used as standalone devices as they are din rail mountable.
MCBs provide circuit protection and are use for power distribution. The NB1 Series is available in various pole types, current ratings and tripping curves.
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Features
The Chint range of NB1 circuit breakers are available in a choice of poles, current ratings, tripping curves and breaking capacities; please choose from the product options. Miniature circuit breakers (known as MCBs) can be used in Chint consumer units, Chint distribution boards or as standalone devices to provide circuit protection.
They are din rail mountable and come with a 5 year guarantee period. Chint MCBs are a reliable and affordable range of circuit protection devices that we have sold for over 14 years.
Specification
- Tripping characteristics:
B Type, ideal for domestic or light commercial use.
C Type, for industrial use were inductive loads are present, will trip between 5 and 10 times the full load current.
D Type, used in applications that have a very high inrush current such as motors and transformers. - Chint circuit breakers are a budget priced alternative to Schneider, Wylex, MEM, Dorman Smith. Square D etc.
- Operating voltage: 230/415V AC 50/60Hz and DC voltages up to 110V (suitable for boats)
- Breaking capacity: 6kA. Also available in 10kA. 6kA is the popular choice for domestic use.
- Din rail mountable MCB.
- Ambient operating temperature: -5 to +40℃
- Manufacturer: Chint
- Guarantee: 5 years
- Tripping characteristics:
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Specifications & Dimensions
Specifications Amp Rating SpecificationsAn amp rating, or ampere rating, indicates the maximum amount of electrical current a device or component is designed to safely handle or deliver.
Brand Chint Breaking Capacity 6 kA Dimensions Located Below Specifications Table Material Plastic Poles Product Type MCB Sku NB1-63***P** Tripping Curve SpecificationsB-type MCBs have a steep tripping curve, tripping quickly for overcurrents, suitable for residential/commercial use. C-type MCBs have a moderate curve, allowing slightly higher overcurrents for a longer duration, used in industrial settings. D-type MCBs have a shallow/delayed curve, withstanding significantly higher overcurrents for an extended period, ideal for equipment with high inrush currents like large motors.
Voltage SpecificationsAC standards for alternating current and DC standards for direct current.
Mains voltage is 230V AC and has a tolerance of 10%, some products are 220V or 240V AC which means they can be classed as mains voltage.
DC voltages usually require an LED driver to convert the mains voltage AC into low voltage DC. Popular DC voltages are 12V or 24V DC.
230V AC Warranty SpecificationsThe minimum guarantee period of this product.
5 Years Single Pole
- Width: 18mm wide (one modular width).
- Height: 86mm
- Depth: 77mm (including switch)
Double Pole
- Width: 36mm wide (two modular width).
- Height: 86mm
- Depth: 77mm (including switch)
Triple Pole- Width: 54mm wide (two modular width).
- Height: 86mm
- Depth: 77mm (including switch)
Four Pole- Width: 72mm wide (two modular width).
- Height: 86mm
- Depth: 77mm (including switch)
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34 Reviews
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Product Questions & Answers 5
Product Questions & Answers
Can you tell me whether these are compatible with either MK or Wylex units, that is does the connection on the busbar below line up with either of these?Question by: Roger Michael Meyts on 5 Aug 2022, 08:40We don't recommend fitting different brands of MCBs in different boards.Answer by: Chris Horridge (Admin) on 5 Aug 2022, 09:50Good afternoon
Are all Chint RCD'S ok for use on 110v supplies, ?
Kind regards, mr k meadQuestion by: kevin mead on 3 Jan 2023, 14:49The specifications state that the Rated voltage Ue is: 230/400~240/415VAnswer by: Chris Horridge (Admin) on 4 Jan 2023, 08:04Hi
Are the nb1 mcb's type suitable for use on 12v dc distribution on a narrowboat?
Question by: Paul Brough on 22 Mar 2023, 18:14I've checked this with Chint and they said:
Most certifications are only tested up to a max voltage.
I know the factory have only tested these down to 24vDC internally.
On that basis I’m going to say no.Answer by: Chris Horridge (Admin) on 23 Mar 2023, 09:08Are these bidirectional?Question by: Jonathan Greener on 4 Nov 2024, 22:41Yes, these Chint NB1 MCBs are bi-directional. We also have some bi-directional RCBOs available:
https://www.expertelectrical.co.uk/fusebox-mini-bi-directional-rcbosAnswer by: Chris Horridge (Admin) on 5 Nov 2024, 08:31Good afternoon can your Chint d/pole mcbs be used ok on supplies of 110v ? kind regards kevin mead louth transformer co ltdQuestion by: kevin mead on 15 Dec 2022, 12:09I've double checked with Chint and they said: Yes, all of our MCBs can be used at 110V AC.Answer by: Chris Horridge (Admin) on 16 Dec 2022, 06:43 -
Product Codes
SKU Poles Amp Rating Tripping Curve NB1-63B1P01 1 Pole 1 B NB1-63C1P01 1 Pole 1 C NB1-63D1P01 1 Pole 1 D NB1-63B1P02 1 Pole 2 B NB1-63C1P02 1 Pole 2 C NB1-63D1P02 1 Pole 2 D NB1-63B1P03 1 Pole 3 B NB1-63C1P03 1 Pole 3 C NB1-63D1P03 1 Pole 3 D NB1-63B1P04 1 Pole 4 B NB1-63C1P04 1 Pole 4 C NB1-63D1P04 1 Pole 4 D NB1-63B1P06 1 Pole 6 B NB1-63C1P06 1 Pole 6 C NB1-63D1P06 1 Pole 6 D NB1-63B1P10 1 Pole 10 B NB1-63C1P10 1 Pole 10 C NB1-63D1P10 1 Pole 10 D NB1-63B1P16 1 Pole 16 B NB1-63C1P16 1 Pole 16 C NB1-63D1P16 1 Pole 16 D NB1-63B1P20 1 Pole 20 B NB1-63C1P20 1 Pole 20 C NB1-63D1P20 1 Pole 20 D NB1-63B1P25 1 Pole 25 B NB1-63C1P25 1 Pole 25 C NB1-63D1P25 1 Pole 25 D NB1-63B1P32 1 Pole 32 B NB1-63C1P32 1 Pole 32 C NB1-63D1P32 1 Pole 32 D NB1-63B1P40 1 Pole 40 B NB1-63C1P40 1 Pole 40 C NB1-63D1P40 1 Pole 40 D NB1-63B1P50 1 Pole 50 B NB1-63C1P50 1 Pole 50 C NB1-63D1P50 1 Pole 50 D NB1-63B1P63 1 Pole 63 B NB1-63C1P63 1 Pole 63 C NB1-63D1P63 1 Pole 63 D NB1-63B2P01 2 Pole 1 B NB1-63C2P01 2 Pole 1 C NB1-63D2P01 2 Pole 1 D NB1-63B2P02 2 Pole 2 B NB1-63C2P02 2 Pole 2 C NB1-63D2P02 2 Pole 2 D NB1-63B2P03 2 Pole 3 B NB1-63C2P03 2 Pole 3 C NB1-63D2P03 2 Pole 3 D NB1-63B2P04 2 Pole 4 B NB1-63C2P04 2 Pole 4 C NB1-63D2P04 2 Pole 4 D NB1-63B2P06 2 Pole 6 B NB1-63C2P06 2 Pole 6 C NB1-63D2P06 2 Pole 6 D NB1-63B2P10 2 Pole 10 B NB1-63C2P10 2 Pole 10 C NB1-63D2P10 2 Pole 10 D NB1-63B2P16 2 Pole 16 B NB1-63C2P16 2 Pole 16 C NB1-63D2P16 2 Pole 16 D NB1-63B2P20 2 Pole 20 B NB1-63C2P20 2 Pole 20 C NB1-63D2P20 2 Pole 20 D NB1-63B2P25 2 Pole 25 B NB1-63C2P25 2 Pole 25 C NB1-63D2P25 2 Pole 25 D NB1-63B2P32 2 Pole 32 B NB1-63C2P32 2 Pole 32 C NB1-63D2P32 2 Pole 32 D NB1-63B2P40 2 Pole 40 B NB1-63C2P40 2 Pole 40 C NB1-63D2P40 2 Pole 40 D NB1-63B2P50 2 Pole 50 B NB1-63C2P50 2 Pole 50 C NB1-63D2P50 2 Pole 50 D NB1-63B2P63 2 Pole 63 B NB1-63C2P63 2 Pole 63 C NB1-63D2P63 2 Pole 63 D NB1-63B3P01 3 Pole 1 B NB1-63C3P01 3 Pole 1 C NB1-63D3P01 3 Pole 1 D NB1-63B3P02 3 Pole 2 B NB1-63C3P02 3 Pole 2 C NB1-63D3P02 3 Pole 2 D NB1-63B3P03 3 Pole 3 B NB1-63C3P03 3 Pole 3 C NB1-63D3P03 3 Pole 3 D NB1-63B3P04 3 Pole 4 B NB1-63C3P04 3 Pole 4 C NB1-63D3P04 3 Pole 4 D NB1-63B3P06 3 Pole 6 B NB1-63C3P06 3 Pole 6 C NB1-63D3P06 3 Pole 6 D NB1-63B3P10 3 Pole 10 B NB1-63C3P10 3 Pole 10 C NB1-63D3P10 3 Pole 10 D NB1-63B3P16 3 Pole 16 B NB1-63C3P16 3 Pole 16 C NB1-63D3P16 3 Pole 16 D NB1-63B3P20 3 Pole 20 B NB1-63C3P20 3 Pole 20 C NB1-63D3P20 3 Pole 20 D NB1-63B3P25 3 Pole 25 B NB1-63C3P25 3 Pole 25 C NB1-63D3P25 3 Pole 25 D NB1-63B3P32 3 Pole 32 B NB1-63C3P32 3 Pole 32 C NB1-63D3P32 3 Pole 32 D NB1-63B3P40 3 Pole 40 B NB1-63C3P40 3 Pole 40 C NB1-63D3P40 3 Pole 40 D NB1-63B3P50 3 Pole 50 B NB1-63C3P50 3 Pole 50 C NB1-63D3P50 3 Pole 50 D NB1-63B3P63 3 Pole 63 B NB1-63C3P63 3 Pole 63 C NB1-63D3P63 3 Pole 63 D NB1-63B4P01 4 Pole 1 B NB1-63C4P01 4 Pole 1 C NB1-63D4P01 4 Pole 1 D NB1-63B4P02 4 Pole 2 B NB1-63C4P02 4 Pole 2 C NB1-63D4P02 4 Pole 2 D NB1-63B4P03 4 Pole 3 B NB1-63C4P03 4 Pole 3 C NB1-63D4P03 4 Pole 3 D NB1-63B4P04 4 Pole 4 B NB1-63C4P04 4 Pole 4 C NB1-63D4P04 4 Pole 4 D NB1-63B4P06 4 Pole 6 B NB1-63C4P06 4 Pole 6 C NB1-63D4P06 4 Pole 6 D NB1-63B4P10 4 Pole 10 B NB1-63C4P10 4 Pole 10 C NB1-63D4P10 4 Pole 10 D NB1-63B4P16 4 Pole 16 B NB1-63C4P16 4 Pole 16 C NB1-63D4P16 4 Pole 16 D NB1-63B4P20 4 Pole 20 B NB1-63C4P20 4 Pole 20 C NB1-63D4P20 4 Pole 20 D NB1-63B4P25 4 Pole 25 B NB1-63C4P25 4 Pole 25 C NB1-63D4P25 4 Pole 25 D NB1-63B4P32 4 Pole 32 B NB1-63C4P32 4 Pole 32 C NB1-63D4P32 4 Pole 32 D NB1-63B4P40 4 Pole 40 B NB1-63C4P40 4 Pole 40 C NB1-63D4P40 4 Pole 40 D NB1-63B4P50 4 Pole 50 B NB1-63C4P50 4 Pole 50 C NB1-63D4P50 4 Pole 50 D NB1-63B4P63 4 Pole 63 B NB1-63C4P63 4 Pole 63 C NB1-63D4P63 4 Pole 63 D