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MITSUBISHI Earth Leakage Breakers (Low Capacity)
Earth Leakage Breakers (Low Capacity) products in the Electrical & Controls category from MITSUBISHI. The product can be selected based on many product specifications such as Ampere frame AF, Rated block capacity AC 100 V, Rated block capacity AC 200 V, Number of Poles, Rated Operating Voltage. MITSUBISHI offers products around 5 items and the product specifications can easily be compared. Parts and equipment for controlling machines and electrical systems. Controllers and power supplies. MITSUBISHI products are available to order through MISUMI online 24 hours a day. Free shipping, no minimum order.
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Specification/Dimensions
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Ampere frame AF
- 30AF or less
- 32AF
- 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
- Backside shape
- Embedded Type
- Insert shape
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You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025Circuit breaker for control panel FA series (Earth leakage circuit breaker) NV30-FA
MITSUBISHI
Earth leakage circuit breaker for control panel.
[Features]
· Higher harmonics surge compatible type.
[Applications]
· Optimal for control panel earth leakage circuit breaker.From: ฿ 5,228.00 Special Price Days to Ship: 
72 Day(s)
72 Day(s)
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You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025Earth Leakage Circuit Breakers (ELCB) NV-L Series
MITSUBISHI
Mitsubishi low-voltage circuit breaker contributing to the future creation of electrical equipment.
Mitsubishi no-fuse breakers and earth leakage breakers that meet the needs of the market for over half a century.
Including WS-V series equipped with the latest breaker technology. Various product ranges are available to meet the needs of the distribution board and machinery market.From: ฿ 1,447.00 Special Price Days to Ship:
72 Day(s)
72 Day(s)
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You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025Circuit breaker for distribution board and control board KC series NV30-KC
MITSUBISHI
Mitsubishi low-voltage circuit breaker contributing to the future creation of electrical equipment.
Mitsubishi no-fuse breakers and earth leakage breakers that meet the needs of the market for over half a century.
Including WS-V series equipped with the latest breaker technology. Various product ranges are available to meet the needs of the distribution board and machinery market.From: ฿ 2,952.00 Special Price Days to Ship:
72 Day(s)
72 Day(s)
-
You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025MITSUBISHI
WS series NV-F type earth leakage breaker supporting higher harmonic surge (standard product).
[Features]
· Earth leakage breaker with earth leakage detection characteristics, unlikely to have unnecessary earth leakage tripping in response to higher harmonics or surges.
· Also applicable to inverter load because a higher harmonics and surge compatible IC is built in.
· Can provide IEC rail mounting as standard.
· Can mount on front surface, without tightening nuts from the back.
· Terminal structure allows back surface wiring.
[Applications]
· Earth leakage breaker supporting higher harmonic surge.From: ฿ 6,507.00 Special Price Days to Ship:
72 Day(s)
72 Day(s)
-
You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025Circuit Breaker For Panelboard And Control Board KC Series NV50-KC
MITSUBISHI
Mitsubishi low-voltage breaker, contributing to building the future of electrical equipment.
Mitsubishi's No-Fuse Breakers and Earth Leakage Circuit Breakers have been meeting the needs of the market for over half a century.
Including the WS-V series, equipped with the latest breaker technology, various product ranges are available that address the needs of both the power distribution market and machinery market.From: ฿ 3,710.00 Special Price Days to Ship:
72 Day(s)
72 Day(s)
| Brand |
|---|
| Product Series |
| From |
| Days to Ship |
| 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.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | |
| Brand | MITSUBISHI | MITSUBISHI | MITSUBISHI | MITSUBISHI | MITSUBISHI |
| Product Series | Circuit breaker for control panel FA series (Earth leakage circuit breaker) NV30-FA | Circuit breaker for distribution board and control board KC series NV30-KC | Circuit Breaker For Panelboard And Control Board KC Series NV50-KC | ||
| From | ฿ 5,228.00 Special Price On Sale Until 31/03/2025 | ฿ 1,447.00 Special Price On Sale Until 31/03/2025 | ฿ 2,952.00 Special Price On Sale Until 31/03/2025 | ฿ 6,507.00 Special Price On Sale Until 31/03/2025 | ฿ 3,710.00 Special Price On Sale Until 31/03/2025 |
| Days to Ship | 72 Day(s) | 72 Day(s) | 72 Day(s) | 72 Day(s) | 72 Day(s) |
| Ampere frame AF | 30AF or less | 30AF or less | 30AF or less | 30AF or less | 50AF |
| Rated block capacity AC 100 V(kA) | 2.5 | 1 ～ 1.5 | 5 | 2.5 | 5 |
| Rated block capacity AC 200 V(kA) | 2.5 | 1 ～ 1.5 | 5 | 2.5 | 5 |
| Rated block capacity AC 400 V(kA) | - | - | - | - | - |
| Number of Poles | 3 | 2 | 3 | 3 | 2 / 3 |
| Rated Operating Voltage(V) | AC100-200 | AC100-200 | AC100-200 | AC100-200 | AC100-200 |
| Rated Current(A) | 10 ～ 30 | 15 ～ 30 | 5 ～ 20 | 30 | 15 ～ 40 |
| rate sensitivity current(mA) | 15 ～ 30 | 10 ～ 30 | 30 | 30 | 30 |
| Mounting Method | DIN/Screw retention | Fasten With Screws | DIN/Screw retention | DIN/Screw retention | DIN/Screw retention |
| Representative Standard | PSE | PSE | PSE | PSE / CE / TUV / CCC | PSE |
| Dimension height(mm) | 72 | 70 | 96 | 72 | 96 |
| Dimension width(mm) | 60 | 32 | 75 | 60 | 50 ～ 75 |
| Dimension depth(mm) | 73.5 | 46.5 | 76 | 73.5 | 76 |
| Rated block capacity, voltages except VAC 100/200/400, VDC 250 | - | - | - | - | - |
| Connection Method | Surface type | Surface type | Surface type | Surface type | Surface type |
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Related Categories to 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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