YTNU4-40 Miniature Circuit Breaker Factory
YTNU4-40 is a high-performance miniature circuit breaker produced by a professional miniature circuit breaker factory, designed for reliable circuit protection in industrial and commercial applications. Ideal for suppliers, wholesalers, distributors, and OEM/ODM buyers seeking stable quality and competitive wholesale prices.
Product Parameter
Model: YTNU4-40
Type: Miniature Circuit Breaker (MCB)
Application: Circuit protection for distribution systems and panels
Supply Type: Factory direct, OEM/ODM, wholesale support
Product Functions
- Short circuit protection
- Overload protection
- Control Isolation
- Circult breaker is sultable for low-voltage terminaldistribution in industrial, civill building,energy
and infrastructurefields.
Standard
- GB/T 10963.1
- IEC 60898-1
Technical parameter
| Technical parameter | |
| Rated current | 1,2,3,4,5,6,10,16,20,25,32,40,50,63A |
| Rated working voltage | 230V/400VAC |
| Maximum operating voltage | 440VAC |
| Breaking capacity | 4500A |
| Impulse withstand voltage | 4kV |
| Mechanicallfe | 20000times |
| Electrical life | 10000times |
| 환경 | Operatingambient temperature:-30°C -+70°C |
| Altitude | ≤2000m |
Product Details
The YTNU4-40 miniature circuit breaker is a compact and efficient electrical protection device designed to safeguard circuits against overload and short-circuit conditions. Manufactured by a trusted miniature circuit breaker factory, this product ensures stable performance and long service life in various electrical systems.
This MCB is widely used in industrial facilities, commercial buildings, distribution boards, control panels, and electrical installations. It is suitable for industrial users, commercial users, electrical contractors, and project engineers who require reliable circuit protection solutions.
As an experienced manufacturer and supplier, we provide full support for wholesalers, distributors, and bulk buyers. Our factory offers OEM/ODM customization services, including branding, packaging, and technical adjustments to meet different market demands. With factory-direct supply and competitive wholesale price advantages, the YTNU4-40 is an ideal choice for electrical product distributors and contractors.
Product Feature
- Precise overload and short-circuit protection
- Compact design for easy installation in panels
- Stable performance for industrial and commercial use
- OEM/ODM customization supported by factory
- Direct supply with competitive wholesale price
Product Accessory
OF auxiliary contact (left mounted), SD alarm contact (left mounted),
MX shunt release(right mounted), MX+OF shunt+auxiliary(right mounted
MN undervoltage release(right mounted),
MV overvoltage release (right mounted),
MV+MN overvoltage/undervoltage release (right mounted)
Wiring & Installation
- It can adopt either upper inlet and lower outlet method or lower inlet and upperoutlet method without the need for capacity reduction
- Terminal wiring area Suitable for wire of 16mm’and below
- Modular structure enables easyinstallation on standard DIN rall
- It can be installed vertically,horizontally or on the back without affecting its characteristic
- Rated torque:2.5Nm
Tripping characteristic
C type curve:
- Protection of general load and distribution cable
- Tripping characteristic: Instantaneous tripping range (5-10) In
D type curve:
- Protection of the impact load with high starting current
- Tripping characteristic: instantaneous tripping range (10-20)in
자주 묻는 질문
1. Are you a miniature circuit breaker factory or manufacturer?
Yes, we are a professional miniature circuit breaker factory and manufacturer, providing direct supply for suppliers, wholesalers, and distributors worldwide.
2. Do you support OEM/ODM customization?
Yes, our factory offers OEM/ODM services, including product customization, branding, packaging, and technical specifications for B2B buyers.
3. What industries can use the YTNU4-40 miniature circuit breaker?
This product is widely used in industrial systems, commercial buildings, electrical panels, and by electrical contractors for installation projects.
4. Can I get wholesale price for bulk orders?
Yes, as a factory and supplier, we provide competitive wholesale price options for distributors, wholesalers, and bulk buyers.
5. Who are your main customers?
Our main customers include industrial users, commercial users, electrical contractors, suppliers, wholesalers, and distributors looking for reliable MCB products.
Are you a miniature circuit breaker factory or manufacturer?
Yes, we are a professional miniature circuit breaker factory and manufacturer, providing direct supply for suppliers, wholesalers, and distributors worldwide.
Do you support OEM/ODM customization?
Yes, our factory offers OEM/ODM services, including product customization, branding, packaging, and technical specifications for B2B buyers.
What industries can use the YTNU4-40 miniature circuit breaker?
This product is widely used in industrial systems, commercial buildings, electrical panels, and by electrical contractors for installation projects.
Can I get wholesale price for bulk orders?
Yes, as a factory and supplier, we provide competitive wholesale price options for distributors, wholesalers, and bulk buyers.
Who are your main customers?
Our main customers include industrial users, commercial users, electrical contractors, suppliers, wholesalers, and distributors looking for reliable MCB products.
