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Earth Leakage Breakers (Low Capacity)（Ampere frame AF：30AF or less）
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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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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- 19 items
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You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025MITSUBISHI
Size as is, increased blocking performance. (general-purpose product)From: ฿ 3,735.00 Special Price Days to Ship: 
Same day
Same day
-
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: ฿ 3,627.00 Special Price Days to Ship:
Same day
Same day
-
You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025MITSUBISHI
WS-V series NV-S type earth leakage circuit breaker (general-purpose product), F style.
[Features]
· Has a small size that is the smallest class in the industry, while maintaining conventional breaking performance.
· Standard support for mounting IEC 35 mm rail.
· Standard compatibility with protection grade IP20 from all directions of terminal area.
· Can mount operation handle.
· Voltage tripping device (SHT) can be mounted on the earth leakage circuit breaker.
[Applications]
· Earth leakage circuit breaker, F style.From: ฿ 4,980.00 Special Price Days to Ship:
Same day
Same day
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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)
-
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-SV Series with CE/CCC
MITSUBISHI
WS-V series NV-S type earth leakage circuit breaker (general-purpose product) CE/CCC product.
[Features]
· Small, high performance, and economical no-fuse breaker.
· Size as is, with enhanced breaking performance.
[Applications]
· No-fuse breaker, for general-purpose products.From: ฿ 5,145.00 Special Price Days to Ship:
Same day
Same day
-
You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025Circuit Breaker For Controlboard FAU Series (Earth Leakage Circuit Breaker) NV30-FAU
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: ฿ 4,337.00 Special Price Days to Ship:
Same day
Same day
-
You can add up to 6 items per a category to the compare list.
BJS small size leakage circuit breaker
PANASONIC
Same size as the safety breaker HB type
Install into the branching of your current power distribution board for the required circuit electrical leakage protection
■ Features
・Same size as the safety breaker HB type
・Reverse-connection enabled type is not subject to construction constraints
・ Simple replacement of existing branch circuits
・ Also mountable to DIN railFrom: ฿ 1,793.00 Days to Ship:
50 Day(s)
50 Day(s)
-
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-SVF Series with CE/CCC
MITSUBISHI
Industry's smallest breaker was born. F Style (general purpose product) CE and CCCFrom: ฿ 6,410.00 Special Price Days to Ship:
Same day
Same day
-
You can add up to 6 items per a category to the compare list.
![EBS series (distribution-panel type leak breaker) [EBS32FB]](//th.misumi-ec.com/en/linked/material/el/LSI1/PHOTO/LSI1_82.jpg?$product_view_b$)
EBS series (distribution-panel type leak breaker) [EBS32FB]
LSIS
[Features]
· Small space-saving leakage breaker for distribution board.
· The distribution board type is compact and can be used for distribution boards.
· Substantial lineup of rated current from 5 A to 100A.
· Height 96 mm, depth 60 mm, JIS agreement size.
· Easy attachment of auxiliary equipment.
· Passed testing, CE mark certified product.
· Types with a breaking capacity of 5kA or 10kA are available.From: ฿ 1,031.66 Days to Ship:
Same day
Same day
-
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: ฿ 4,337.00 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 31/03/2025Earth Leakage Circuit Breakers (ELCB) NV-KC Series with accessories
MITSUBISHI
A product series for basic protection of low-voltage circuits that consists of products ideal for shock protection
as well as protecting against overload and shorts.From: ฿ 4,087.00 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 31/03/2025From: ฿ 321.67 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 31/03/2025Earth Leakage Circuit Breakers (ELCB) NV-FA Series
MITSUBISHI
In addition to overload and short-circuit protection in low-voltage circuit, this product series also offers the most optimal protection against electric shock as well as
basic protection for low-voltage circuits.From: ฿ 4,427.00 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.
![Compact Leakage Breaker [with OC]](//th.misumi-ec.com/en/linked/material/el/TEM1/PHOTO/222004910550.jpg?$product_view_b$)
Compact Leakage Breaker [with OC]
TEMPEARL
Compatible dimensions with safe breaker, for embedding household distribution board, standard distribution board, in addition, it's possible to use on small load carrying capacity.
[Features]
· Instant blocking function for wire short circuit protection is not available.
· Please use other than the outlet circuit.From: ฿ 3,033.00 Days to Ship:
16 Day(s)
16 Day(s)
-
You can add up to 6 items per a category to the compare list.
JIS Compatible Leakage Breaker (Low Capacity)
FUJI ELECTRIC
[Features]
· Home distribution board or various electrical devices (vending machines, refrigerated showcase etc.).
· ELB for insertion.From: ฿ 2,375.01 Days to Ship:
Quote
Quote
-
You can add up to 6 items per a category to the compare list.
DG Series Leakage Breaker for Electrical Works (Low Capacity)
FUJI ELECTRIC
[Features]
· Sensitivity current switching type can be set up to 1000mA over (125AF).
· Auxiliary switches (W) and alarm switches (K) can be installed on all types.
· 3P products of 225AF or less can be used for both wiring protection and induction motor protection.
· Terminal covers with sealing screws are standard equipment in all models.
· For frames 60 to 225A Crimp terminals are the standard equipment.From: ฿ 4,656.67 Days to Ship:
61 Day(s)
61 Day(s)
-
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-SVF Series
MITSUBISHI
In addition to overload and short-circuit protection in low-voltage circuit, this product series also offers the most optimal protection against electric shock as well as
basic protection for low-voltage circuits.From: ฿ 8,940.00 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 31/03/2025Earth Leakage Circuit Breakers (ELCB) NV-FAU Series with accessories
MITSUBISHI
In addition to overload and short-circuit protection in low-voltage circuit, this product series also offers the most optimal protection against electric shock as well as
basic protection for low-voltage circuits.From: ฿ 7,408.00 Special Price Days to Ship:
72 Day(s)
72 Day(s)
![EBS series (distribution-panel type leak breaker) [EBS32FB]](http://th.misumi-ec.com/en/linked/material/el/LSI1/PHOTO/LSI1_82.jpg?$product_view_b$)
![Compact Leakage Breaker [with OC]](http://th.misumi-ec.com/en/linked/material/el/TEM1/PHOTO/222004910550.jpg?$product_view_b$)
| 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 | 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.  | 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. ![EBS series (distribution-panel type leak breaker) [EBS32FB]](http://th.misumi-ec.com/en/linked/material/el/LSI1/PHOTO/LSI1_82.jpg?$product_view_c$) | 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 | You can add up to 6 items per a category to the compare list. ![Compact Leakage Breaker [with OC]](http://th.misumi-ec.com/en/linked/material/el/TEM1/PHOTO/222004910550.jpg?$product_view_c$) | 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.  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 | MITSUBISHI | PANASONIC | MITSUBISHI | LSIS | MITSUBISHI | MITSUBISHI | MITSUBISHI | MITSUBISHI | MITSUBISHI | TEMPEARL | FUJI ELECTRIC | FUJI ELECTRIC | MITSUBISHI | MITSUBISHI |
| Product Series | Circuit breaker for control panel FA series (Earth leakage circuit breaker) NV30-FA | Earth Leakage Circuit Breakers (ELCB) NV-SV Series with CE/CCC | Circuit Breaker For Controlboard FAU Series (Earth Leakage Circuit Breaker) NV30-FAU | Earth Leakage Circuit Breakers (ELCB) NV-SVF Series with CE/CCC | Circuit breaker for distribution board and control board KC series NV30-KC | Earth Leakage Circuit Breakers (ELCB) NV-KC Series with accessories | DG Series Leakage Breaker for Electrical Works (Low Capacity) | Earth Leakage Circuit Breakers (ELCB) NV-FAU Series with accessories | |||||||||||
| From | ฿ 3,735.00 Special Price On Sale Until 31/03/2025 | ฿ 3,627.00 Special Price On Sale Until 31/03/2025 | ฿ 4,980.00 Special Price On Sale Until 31/03/2025 | ฿ 1,447.00 Special Price On Sale Until 31/03/2025 | ฿ 5,145.00 Special Price On Sale Until 31/03/2025 | ฿ 4,337.00 Special Price On Sale Until 31/03/2025 | ฿ 1,793.00 | ฿ 6,410.00 Special Price On Sale Until 31/03/2025 | ฿ 1,031.66 | ฿ 2,952.00 Special Price On Sale Until 31/03/2025 | ฿ 4,337.00 Special Price On Sale Until 31/03/2025 | ฿ 4,087.00 Special Price On Sale Until 31/03/2025 | ฿ 321.67 Special Price On Sale Until 31/03/2025 | ฿ 4,427.00 Special Price On Sale Until 31/03/2025 | ฿ 3,033.00 | ฿ 2,375.01 | ฿ 4,656.67 | ฿ 8,940.00 Special Price On Sale Until 31/03/2025 | ฿ 7,408.00 Special Price On Sale Until 31/03/2025 |
| Days to Ship | Same day | Same day | Same day | 72 Day(s) | Same day | Same day | 50 Day(s) | Same day | Same day | 72 Day(s) | 72 Day(s) | 72 Day(s) | 72 Day(s) | 72 Day(s) | 16 Day(s) | Quote | 61 Day(s) | 72 Day(s) | 72 Day(s) |
| Ampere frame AF | 30AF or less | 30AF or less | 30AF or less | 30AF or less | 30AF or less | 30AF or less | 30AF or less | 30AF or less | 30AF or less | 30AF or less | 30AF or less | 30AF or less | 30AF or less | 30AF or less | 30AF or less | 30AF or less | 30AF or less | 30AF or less | 30AF or less |
| Rated block capacity AC 100 V(kA) | 10 ～ 15 | 1.5 ～ 2.5 | 7.5 | 1 ～ 1.5 | 10 | 2.5 | - | 7.5 | - | 5 | 2.5 | 5 | 1.5 | 2.5 | 1.5 | 1.5 | 5 | 7.5 | 2.5 |
| Rated block capacity AC 200 V(kA) | 10 ～ 15 | 1.5 ～ 2.5 | 7.5 | 1 ～ 1.5 | 10 | 2.5 | - | 7.5 | 5 | 5 | 2.5 | 5 | 1.5 | 2.5 | 1 | 1.5 | 2.5 | 7.5 | 2.5 |
| Rated block capacity AC 400 V(kA) | 5 ～ 7.5 | - | 5 | - | 5 | - | - | 5 | - | - | - | - | - | - | - | - | - | 5 | - |
| Number of Poles | 2 / 3 | 2 / 3 | 2 / 3 | 2 | 3 | 2 | 2 | 2 / 3 | 2 / 3 | 3 | 2 / 3 | 3 | 2 | 2 / 3 | 2 | 2 / 3 | 3 | 3 | 2 |
| Rated Operating Voltage(V) | 100-440V ～ AC100 to 440 | AC100-200 ～ AC100 to 200 | AC100-440 ～ AC100 to 440 | AC100 ～ AC100-200 | AC100 to 440 | AC100-440 ～ AC100-240 | - | AC 100–240 ～ AC100 to 440 | 100 to 220 | AC100-200 | AC100-200 ～ AC100 to 200 | 100 to 200 | - | 100-200 | 100 ～ 200 | AC100/200 | AC100/200 | 100-440 | 100-240 |
| Rated Current(A) | 5 ～ 30 | 5 ～ 30 | 5 ～ 32 | 15 ～ 30 | 15 | 10 ～ 30 | 15 | 20 ～ 30 | 5 ～ 30 | 5 ～ 20 | 20 ～ 30 | 15 ～ 30 | 15 / 20 | 5 ～ 15 | 20 | 30 | 1.4 ～ 30 | 10 | 15 |
| rate sensitivity current(mA) | 30 | 15 ～ 30 | 30 ～ 100 | 10 ～ 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | - | 30 | 15 | 15 ～ 30 | 15 ～ 30 | 30 ～ 100 | 30 |
| Mounting Method | DIN rail mount | DIN/Screw retention | DIN/Screw retention | Fasten With Screws | DIN/Screw retention | DIN/Screw retention | - | DIN/Screw retention | DIN rail mount | DIN/Screw retention | DIN/Screw retention | DIN/Screw retention | - | DIN/Screw retention | Fasten With Screws | Fasten With Screws | Fasten With Screws | DIN/Screw retention | DIN/Screw retention |
| Representative Standard | PSE | PSE | PSE / CE / TUV | PSE / CE / TUV | PSE / CE / CCC | PSE / CE / TUV / CCC | - | PSE / CE / TUV / CCC | PSE / CE | PSE | PSE / CE / TUV / CCC | PSE | - | PSE | - | PSE | PSE | PSE | PSE / CE / UL / CUL / TUV / CCC |
| Dimension height(mm) | 130 | 72 | 100 | 70 | 130 | 72 | - | 100 | 96 | 96 | 72 | 96 | - | 72 | 70 | 70 ～ 80 | 120 | 100 | 72 |
| Dimension width(mm) | 75 | 40 ～ 60 | 36 ～ 54 | 32 | 75 | 40 ～ 60 | - | 36 ～ 54 | 50 ～ 75 | 75 | 40 ～ 60 | 75 | - | 40 ～ 60 | 32 | 68 ～ 90 | 75 | 54 | 40 |
| Dimension depth(mm) | 90 | 73.5 | 90 | 46.5 | 90 | 73.5 | - | 90 | 80 | 76 | 73.5 | 76 | - | 73.5 | 57 | 63 | 84 | 90 | 73.5 |
| Rated block capacity, voltages except VAC 100/200/400, VDC 250 | Available | - | Available | Available | - | Available | - | - | Available | - | - | - | - | - | Available | - | - | Available | Available |
| Connection Method | Surface type | Surface type | Surface type | Surface type | Surface type | Surface type | - | Surface type | Surface type | Surface type | Surface type | Surface type | - | Surface type | 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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