40A 230V DIN Rail Electronic Digital Display Adjustable Overload Voltage Protector MCB
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Product Highlights
- Real-time Digital Display: Provides accurate real-time readings of voltage and current for easy monitoring.
- Overvoltage & Overcurrent Protection: Automatically cuts off power when thresholds are breached to protect circuits.
- Adjustable Settings: Features adjustable settings to guard against voltage fluctuations and overloads.
- Durable Copper Material: Constructed with high-quality copper for reliable electrical performance.
- Compact DIN Rail Design: Compact and rail-mounted for easy installation in residential or commercial setups.
- Multi-Pole Options: Available in 3-pole and 4-pole configurations for three-phase four-wire systems.
- Comprehensive Certifications: Certified by ISO, CE, VDE, ISO9001-2000, CB, and CCC for global compliance.
Product Attributes
- Customization
- Available
- Current Type
- AC
- Phase
- Three Phase
- Model NO.
- LDJR22340
- Frequency Characteristics
- Low Frequency
- Usage
- SVC, Meter for Industry and Home Use, Maximum Demand Meter, Meter for Industry and Home Use, Maximum Demand Meter
- Frequency
- Low Frequency
- Size
- Small
- Power Source
- Switching Regulated Power Supply
- Application Range
- All Environment
- Brand
- OEM, Leidun
- Display
- Digital
- Installation
- Direct Connected
- Electric Equipment
- Three-Phase Four-Wire
- Theory
- Electronic Meter
- Power Meter Connection
- Terminal
- Measured Signal
- Continuous Wave
- Type
- Power Meter
- Certification
- ISO, CE, ISO, CE, VDE, ISO9001-2000, CB, CCC
- After-Sales Service
- 10 Years
- Warranty
- 2 Years
- Breaking Capacity
- Low Voltage Circuit Breakers
- Operation
- Electric Type
- Speed
- Normal Type Circuit Breaker
- Arc-Extinguishing Medium
- Air
- Structure
- MCB
- Poles Number
- 3
- Function
- Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, Ovp(Overvoltage Protection)
- Rated Frequency
- 50/60Hz
- No. of Poles
- 3p/4p
- Protection Level
- IP35
- Ambient Temperature
- -35℃+70℃
- Rated Current
- 40A
- Transport Package
- Carton
- Specification
- 10X5X10 cm
- Trademark
- customizable/leidun
- Origin
- China
- Package Size
- 10.00cm * 5.00cm * 10.00cm
- Package Gross Weight
- 1.800kg
- Lead Time
-
10 days (1 - 500 Pieces)
To be negotiated ( > 500 Pieces)
Shipping
- Shipping Cost:
- Contact the supplier about freight and estimated delivery time.
Online Trading Protection
- Payment Guarantee
-
Platform-protected payments with refund support for eligible order issues.
- Platform Logistics
- Clearer shipment tracking with platform-supported logistics.
- Inspection Service
- Optional pre-shipment inspection for quality and quantity checks.
- After-Sales & Dispute Handling
- Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
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Product Description


The 40A 230V Din Rail Electronic Digital Display Adjustable Overload Voltage Protector MCB is a compact, rail-mounted circuit breaker. It features a digital display for real-time monitoring, with adjustable settings to guard against overloads and voltage fluctuations. Designed for easy installation, it automatically cuts off power when thresholds are breached, protecting electrical circuits and devices in residential or light commercial setups.
| Rated frequency | 50/60Hz |
| Protection | Overvoltage, Overcurrent Protection |
| Material | Copper |
| Rated Current | 40A/63A |





Q1. Can I get samples?
Yes. If you have any needs, please contact us and we will respond within 24 hours. If you are in a hurry, you can call our sales directly
Q2. Can I use other logos or designs on the products?
Yes, we provide OEM/ODM services, you can customize products with other logos and designs.
Q3. Do you have factories?
Yes, we have factories in Jiangsu and Zhejiang, welcome to visit our company.
Q4. How do you ensure quality?
We have a complete quality management system, use qualified raw materials, conduct quality inspections in different production links, regularly collect user feedback, and trace the source in time when quality problems occur, and keep records to prevent repeated errors.
Q5. How long does it take to prepare after placing an order?
Usually it takes 5~7 days, it also depends on the quantity of the order.
About the Supplier
This supplier has been audited by CTI. Verify the report on the official CTI website with ID "QIP-ASI2432494". Items marked "" are certified.
Company Profile
LEIDUN is an electrical enterprise integrating R&D, production, and trade, and our products are mainly photovoltaic components, High and low voltage electrical appliances and power distribution boxes.
OUR company is headquartered in Jiangsu Province, and our branch is in Zhejiang Province. Both places are coastal areas of China with developed economies and more standardized industries, which make our products competitive.
ALL kinds of products manufactured by LEIDUN have achieved significant advancements in both design and technical performance. They are primarily utilized in various sectors, such as the State Grid, PV systems, railway traffic, fire protection, construction engineering, hospitals, and other fields. Market sales data confirm that our products effectively meet customer needs and project requirements, earning approval and positive feedback from clients.
We have successfully obtained the "CCC" certificate and "CQC" certifications, along with three system certifications and numerous honorary awards. Since our establishment, we have been dedicated to manufacturing new energy photovoltaic products and operating in the high and low voltage electrical fields. Our enterprise development philosophy is centered on "specialization, excellence, and growth", and our service concept is "perseverance. " We aim to focus on global markets, strive for national brand recognition, and provide outstanding solutions for "carbon-neutral" and intelligent green electricity.
About Our Factory & Business Background
- Address
- Xiamen Village, Liushi Town, Yueqing City, Wenzhou, Zhejiang, China
- Nearest Port
- Ningbo, Shanghai
Our Production Capability & Technical Expertise
Our Industry Experience & Global Business Record
- Export Year
- 2023-06-09
- Main Markets
- North America, Africa, Mid East
FAQ
- Can I get samples?
- Yes. If you have any needs, please contact us and we will respond within 24 hours. If you are in a hurry, you can call our sales directly.
- Can I use other logos or designs on the products?
- Yes, we provide OEM/ODM services, you can customize products with other logos and designs.
- Do you have factories?
- Yes, we have factories in Jiangsu and Zhejiang, welcome to visit our company.
- How do you ensure quality?
- We have a complete quality management system, use qualified raw materials, conduct quality inspections in different production links, regularly collect user feedback, and trace the source in time when quality problems occur, and keep records to prevent repeated errors.
- How long does it take to prepare after placing an order?
- Usually it takes 5~7 days, it also depends on the quantity of the order.
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