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Earth Leakage Breakers (Low Capacity)（Ampere frame AF：50AF）
Take advantage of the convenience of FREE SHIPPING and NO MINIMUM ORDER on the Earth Leakage Circuit Breaker (ELCB). If you have any doubts or require assistance in choosing the right product, our experts are readily available to provide advice and guidance.
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MITSUBISHI
Size as is, increased blocking performance. (general-purpose product)
Ampere frame AF Rated block capacity AC 100 V(kA) Rated block capacity AC 200 V(kA) Rated block capacity AC 400 V(kA) Number of Poles Rated Operating Voltage(V) Rated Current(A) rate sensitivity current(mA) Mounting Method Representative Standard Dimension height(mm) Dimension width(mm) Dimension depth(mm) Rated block capacity, voltages except VAC 100/200/400, VDC 250 Connection Method 50AF 15 15 7.5 2 / 3 100-440V ～ AC100 to 440 5 ～ 50 15 ～ 500 DIN rail mount PSE 130 75 90 Available Surface type From: 1,582,500 VND Days to Ship: Số ngày giao hàng: 7 Day(s) or more 
7 Day(s) or more
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Earth Leakage Circuit Breaker NV-C Class (Economy Product) Harmonic/Surge Compatible NV63-CV
MITSUBISHI
Size as is, increased blocking performance. (economic item)
Ampere frame AF Rated block capacity AC 100 V(kA) Rated block capacity AC 200 V(kA) Rated block capacity AC 400 V(kA) Number of Poles Rated Operating Voltage(V) Rated Current(A) rate sensitivity current(mA) Mounting Method Representative Standard Dimension height(mm) Dimension width(mm) Dimension depth(mm) Rated block capacity, voltages except VAC 100/200/400, VDC 250 Connection Method 50AF 7.5 7.5 5 2 / 3 AC100-440 ～ AC100 to 440 5 ～ 50 15 ～ 500 DIN rail mount PSE 130 75 68 ～ 90 Available Surface type From: 1,177,500 VND Days to Ship: Số ngày giao hàng: 7 Day(s) or more
7 Day(s) or more
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MITSUBISHI
Ampere frame AF Rated block capacity AC 100 V(kA) Rated block capacity AC 200 V(kA) Rated block capacity AC 400 V(kA) Number of Poles Rated Operating Voltage(V) Rated Current(A) rate sensitivity current(mA) Mounting Method Representative Standard Dimension height(mm) Dimension width(mm) Dimension depth(mm) Rated block capacity, voltages except VAC 100/200/400, VDC 250 Connection Method 50AF 15 15 10 3 AC100-440 15 ～ 60 30 ～ 500 DIN/Screw retention PSE / CE / TUV 100 54 90 Available Surface type From: 2,828,750 VND Days to Ship: Số ngày giao hàng: Quote
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Earth Leakage Circuit Breakers (ELCB) NV-SVFU Series
MITSUBISHI
Ampere frame AF Rated block capacity AC 100 V(kA) Rated block capacity AC 200 V(kA) Rated block capacity AC 400 V(kA) Number of Poles Rated Operating Voltage(V) Rated Current(A) rate sensitivity current(mA) Mounting Method Representative Standard Dimension height(mm) Dimension width(mm) Dimension depth(mm) Rated block capacity, voltages except VAC 100/200/400, VDC 250 Connection Method 50AF 15 - 10 2 / 3 AC120-240 5 ～ 50 30 DIN/Screw retention PSE / CE / TUV / CCC 120 36 ～ 54 90 Available Surface type From: 5,410,000 VND Days to Ship: Số ngày giao hàng: Quote
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SEOUL INDUSTRIAL ELECTRIC
Ampere frame AF Rated block capacity AC 100 V(kA) Rated block capacity AC 200 V(kA) Rated block capacity AC 400 V(kA) Number of Poles Rated Operating Voltage(V) Rated Current(A) rate sensitivity current(mA) Mounting Method Representative Standard Dimension height(mm) Dimension width(mm) Dimension depth(mm) Rated block capacity, voltages except VAC 100/200/400, VDC 250 Connection Method 50AF - - - 2 / 3 - 30 ～ 50 - - - - - - - - From: 633,637 VND Days to Ship: Số ngày giao hàng: 4 Day(s)
4 Day(s)
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MITSUBISHI
The industry's smallest breaker was born. F Style NV-C Class (economic item)
Ampere frame AF Rated block capacity AC 100 V(kA) Rated block capacity AC 200 V(kA) Rated block capacity AC 400 V(kA) Number of Poles Rated Operating Voltage(V) Rated Current(A) rate sensitivity current(mA) Mounting Method Representative Standard Dimension height(mm) Dimension width(mm) Dimension depth(mm) Rated block capacity, voltages except VAC 100/200/400, VDC 250 Connection Method 50AF 7.5 7.5 5 2 / 3 AC100-440 ～ AC100 to 440 15 ～ 50 30 DIN/Screw retention PSE 100 36 ～ 54 90 - Surface type From: 2,612,500 VND Days to Ship: Số ngày giao hàng: Quote
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Household Earth Leakage Circuit Breaker EGR-K Series
LSIS
【Features】・Increased breaking capacity : Based on 5kA AC220V (Existing Capacity 2.5kA)・Expanded rated current capacity : Expanded to 40, 50A (Existing Capacity 15, 20, 30A)・Holds momentary and instantaneous characteristics Diversified installation methods : DIN-Rail and Screw attachable・Terminal connection method : Supports ring type terminal, Separate product offer・KS Certified Product
Ampere frame AF Rated block capacity AC 100 V(kA) Rated block capacity AC 200 V(kA) Rated block capacity AC 400 V(kA) Number of Poles Rated Operating Voltage(V) Rated Current(A) rate sensitivity current(mA) Mounting Method Representative Standard Dimension height(mm) Dimension width(mm) Dimension depth(mm) Rated block capacity, voltages except VAC 100/200/400, VDC 250 Connection Method 50AF - - - - - 40A ～ 50A 15MA ～ 30MA - - - - - - - From: 817,359 VND Days to Ship: Số ngày giao hàng: 26 Day(s)
26 Day(s)
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MITSUBISHI
Ampere frame AF Rated block capacity AC 100 V(kA) Rated block capacity AC 200 V(kA) Rated block capacity AC 400 V(kA) Number of Poles Rated Operating Voltage(V) Rated Current(A) rate sensitivity current(mA) Mounting Method Representative Standard Dimension height(mm) Dimension width(mm) Dimension depth(mm) Rated block capacity, voltages except VAC 100/200/400, VDC 250 Connection Method 50AF 25 25 10 3 AC100-440 20 ～ 30 30 ～ 100· 200· 500 switch DIN/Screw retention PSE / CE / TUV 130 75 90 Available Surface type From: 2,853,750 VND Days to Ship: Số ngày giao hàng: Quote
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Earth Leakage Circuit Breaker-JEB Series (50AF)
JINHUENG ELEC
Ampere frame AF Rated block capacity AC 100 V(kA) Rated block capacity AC 200 V(kA) Rated block capacity AC 400 V(kA) Number of Poles Rated Operating Voltage(V) Rated Current(A) rate sensitivity current(mA) Mounting Method Representative Standard Dimension height(mm) Dimension width(mm) Dimension depth(mm) Rated block capacity, voltages except VAC 100/200/400, VDC 250 Connection Method 50AF - - - 2 / 3 220V ～ 460V 5A ～ 50A - - - - 75 - - - From: 682,122 VND Days to Ship: Số ngày giao hàng: 7 Day(s)
7 Day(s)
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Earth Leakage Circuit Breaker-JEB Series (for 50AF Distribution Board)
JINHUENG ELEC
Ampere frame AF Rated block capacity AC 100 V(kA) Rated block capacity AC 200 V(kA) Rated block capacity AC 400 V(kA) Number of Poles Rated Operating Voltage(V) Rated Current(A) rate sensitivity current(mA) Mounting Method Representative Standard Dimension height(mm) Dimension width(mm) Dimension depth(mm) Rated block capacity, voltages except VAC 100/200/400, VDC 250 Connection Method 50AF - - - 2 220V 15A ～ 50A - - - - 75 - - - From: 721,992 VND Days to Ship: Số ngày giao hàng: 7 Day(s)
7 Day(s)
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Distribution Board, Earth Leakage Circuit Breaker DSB Series (30/50AF)
DONG A ELECTRIC DEVICE
Ampere frame AF Rated block capacity AC 100 V(kA) Rated block capacity AC 200 V(kA) Rated block capacity AC 400 V(kA) Number of Poles Rated Operating Voltage(V) Rated Current(A) rate sensitivity current(mA) Mounting Method Representative Standard Dimension height(mm) Dimension width(mm) Dimension depth(mm) Rated block capacity, voltages except VAC 100/200/400, VDC 250 Connection Method 50AF - - - 2 / 3 / 4 AC220 ～ AC460 15 ～ 50 15, 30 ～ 30,100/200/500 Fasten With Screws - 80 35 ～ 73.5 76 - Surface type From: 652,286 VND Days to Ship: Số ngày giao hàng: 10 Day(s)
10 Day(s)
| BrandNhãn hiệu |
|---|
| Product SeriesDòng sản phẩm |
| From |
| Days to ShipSố ngày giao hàng |
| Ampere frame AF |
| Rated block capacity AC 100 V(kA) |
| Rated block capacity AC 200 V(kA) |
| Rated block capacity AC 400 V(kA) |
| Number of Poles |
| Rated Operating Voltage(V) |
| Rated Current(A) |
| rate sensitivity current(mA) |
| Mounting Method |
| Representative Standard |
| Dimension height(mm) |
| Dimension width(mm) |
| Dimension depth(mm) |
| Rated block capacity, voltages except VAC 100/200/400, VDC 250 |
| Connection Method |
You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | |
| BrandNhãn hiệu | MITSUBISHI | MITSUBISHI | MITSUBISHI | MITSUBISHI | SEOUL INDUSTRIAL ELECTRIC | MITSUBISHI | LSIS | MITSUBISHI | JINHUENG ELEC | JINHUENG ELEC | DONG A ELECTRIC DEVICE |
| Product SeriesDòng sản phẩm | Earth Leakage Circuit Breaker NV-C Class (Economy Product) Harmonic/Surge Compatible NV63-CV | Earth Leakage Circuit Breaker-JEB Series (for 50AF Distribution Board) | Distribution Board, Earth Leakage Circuit Breaker DSB Series (30/50AF) | ||||||||
| From | 1,582,500 VND | 1,177,500 VND | 2,828,750 VND | 5,410,000 VND | 633,637 VND | 2,612,500 VND | 817,359 VND | 2,853,750 VND | 682,122 VND | 721,992 VND | 652,286 VND |
| Days to ShipSố ngày giao hàng | 7 Day(s) or more | 7 Day(s) or more | Quote | Quote | 4 Day(s) | Quote | 26 Day(s) | Quote | 7 Day(s) | 7 Day(s) | 10 Day(s) |
| Ampere frame AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF | 50AF |
| Rated block capacity AC 100 V(kA) | 15 | 7.5 | 15 | 15 | - | 7.5 | - | 25 | - | - | - |
| Rated block capacity AC 200 V(kA) | 15 | 7.5 | 15 | - | - | 7.5 | - | 25 | - | - | - |
| Rated block capacity AC 400 V(kA) | 7.5 | 5 | 10 | 10 | - | 5 | - | 10 | - | - | - |
| Number of Poles | 2 / 3 | 2 / 3 | 3 | 2 / 3 | 2 / 3 | 2 / 3 | - | 3 | 2 / 3 | 2 | 2 / 3 / 4 |
| Rated Operating Voltage(V) | 100-440V ～ AC100 to 440 | AC100-440 ～ AC100 to 440 | AC100-440 | AC120-240 | - | AC100-440 ～ AC100 to 440 | - | AC100-440 | 220V ～ 460V | 220V | AC220 ～ AC460 |
| Rated Current(A) | 5 ～ 50 | 5 ～ 50 | 15 ～ 60 | 5 ～ 50 | 30 ～ 50 | 15 ～ 50 | 40A ～ 50A | 20 ～ 30 | 5A ～ 50A | 15A ～ 50A | 15 ～ 50 |
| rate sensitivity current(mA) | 15 ～ 500 | 15 ～ 500 | 30 ～ 500 | 30 | - | 30 | 15MA ～ 30MA | 30 ～ 100· 200· 500 switch | - | - | 15, 30 ～ 30,100/200/500 |
| Mounting Method | DIN rail mount | DIN rail mount | DIN/Screw retention | DIN/Screw retention | - | DIN/Screw retention | - | DIN/Screw retention | - | - | Fasten With Screws |
| Representative Standard | PSE | PSE | PSE / CE / TUV | PSE / CE / TUV / CCC | - | PSE | - | PSE / CE / TUV | - | - | - |
| Dimension height(mm) | 130 | 130 | 100 | 120 | - | 100 | - | 130 | - | - | 80 |
| Dimension width(mm) | 75 | 75 | 54 | 36 ～ 54 | - | 36 ～ 54 | - | 75 | 75 | 75 | 35 ～ 73.5 |
| Dimension depth(mm) | 90 | 68 ～ 90 | 90 | 90 | - | 90 | - | 90 | - | - | 76 |
| Rated block capacity, voltages except VAC 100/200/400, VDC 250 | Available | Available | Available | Available | - | - | - | Available | - | - | - |
| Connection Method | Surface type | Surface type | Surface type | Surface type | - | Surface type | - | Surface type | - | - | Surface type |
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ConfigureTạo
Specification/DimensionsĐặc điểm kỹ thuật / Kích thướcĐặc điểm kỹ thuật / Kích thước
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Ampere frame AF
- 30AF or less
- 50AF
- 60AF
- 100AF to 199AF
- 400AF or higher
- Other
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Rated block capacity AC 100 V(kA)
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Rated block capacity AC 200 V(kA)
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Rated block capacity AC 400 V(kA)
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Number of Poles
- 2
- 3
- 4
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Rated Operating Voltage(V)
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Rated Current(A)
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rate sensitivity current(mA)
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Mounting Method
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Representative Standard
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Dimension height(mm)
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Dimension width(mm)
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Dimension depth(mm)
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Rated block capacity, voltages except VAC 100/200/400, VDC 250
- Available
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Connection Method
- Surface type
Related Categories to Earth Leakage Breakers (Low Capacity)Danh mục liên quan đến Earth Leakage Breakers (Low Capacity)
FAQ Earth Leakage Breakers (Low Capacity)
- Question: What is the function and capacity of an Earth Leakage Circuit Breaker (ELCB)?
- Answer: An Earth Leakage Circuit Breaker (ELCB) is a crucial safety device in electrical installations. Its primary function is to protect individuals from electric shock by automatically disconnecting the power supply when a fault occurs. ELCBs are designed to detect imbalances in the current flowing between live and neutral conductors. When a leakage current exceeds its rated value (typically 30mA or 100mA), the ELCB trips, interrupting the circuit and preventing potentially fatal injuries. This rapid response time ensures immediate protection against electric shock hazards.
- Question: What are the typical reasons for an ELCB to trip, and how does one troubleshoot it?
- Answer: ELCB Tripping: Reasons and Troubleshooting
Common Reasons:
1.Earth Leakage: Current flows through unintended path (faulty appliance, wiring, water).
2.Circuit Overload: Current exceeds ELCB's rating (too many appliances).
3.Nuisance Trips: High sensitivity, electrical noise, power surges.
4.Troubleshooting:
Identify affected circuit and appliances.
1.Turn off all appliances and reset ELCB.
2.Switch on appliances one by one to find the culprit.
3.Repair/replace faulty appliance or fix wiring.
4.Test ELCB again with all appliances on. - Question: How does one determine the appropriate tripping capacity and minimum rating for an ELCB?
- Answer: 1. Tripping Capacity: This depends on potential fault currents and the maximum allowable leakage. Factors include:
- Fault Current Loop Impedance: The resistance of the path the fault current takes to Earth, influencing how quickly the ELCB trips.
- Maximum Earth Fault Current: The highest current the ELCB should allow to flow before tripping, typically 30mA or 100mA.
2.Minimum Current Rating: This is based on the circuit's maximum current demand and needs to be equal to or higher than the expected circuit load. Factors include:
- Circuit Load: The total current drawn by all appliances connected to the circuit.
- Diversity Factor: Considers that all appliances won't operate at maximum load simultaneously. - Question: What are the standard sizes of earth leakage, and how do you calculate the correct size for your needs?
- Answer: Earth leakage circuit breakers (ELCBs) come in a range of standard sizes, typically specified by their rated current (In) and tripping sensitivity (IΔn). Common sizes include:
1.Current (In): 16A, 20A, 25A, 32A, 40A, 63A, 80A, 100A, 125A
2.Sensitivity (IΔn): 30mA, 100mA, 300mA
Choosing the correct size for your needs involves two main considerations:
1.Maximum Current Demand: Calculate the total current drawn by all appliances connected to the circuit.
2.Tripping Sensitivity: Based on safety requirements and potential fault scenarios.
Example: Sum all appliance currents:
Appliance A: 300W (1.3A)
Appliance B: 500W (2.17A)
Total current demand: 3.47A
This means you need an ELCB with a rated current (In) equal to or greater than 3.47A. - Question: How do you measure earth leakage current, and what is the acceptable range for safety standards?
- Answer: Measuring earth leakage current requires a specialized instrument called an earth leakage clamp meter. It clamps around the earth conductor of the circuit and measures the current flowing through it. Acceptable levels for safety vary depending on regulations and application:
- IEC 60364-4-42: 30mA maximum for general residential installations.
- BS 7671: 30mA for most domestic circuits, 100mA for specific situations (e.g., bathrooms).
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