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Circuit Protectors（Rated block capacity When AC 250 V：1kA）
A circuit protector is a circuit breaker that has a function to protect load equipment against overcurrent. Used for overcurrent protection of control panels and overcurrent of power supplies such as communication equipment, OA equipment, etc. Of the safety functions built into control panels and switchboards, the purpose is to protect electrical equipment from electrical circuits, and is used to protect low-capacity control circuits, motors, electronic circuits, etc. that are not protected by wiring breakers (MCCB). Switches with a switch function can actively cut off load current, and circuit protectors may be used as power switches for small-capacity devices. There are also trip-free structures and those with an alarm switch. When selecting a product, check whether it is AC / DC compatible or dedicated, rated current, number of poles, overcurrent operation characteristics, etc.
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Specification/Dimensions
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Rated Current(A)
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Number of Poles
- 1
- 2
- 3
- Other
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Rated Voltage
- AC250V
- DC65V
- DC125V
- DC24V
- AC125V
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Rated block capacity When AC 250 V(kA)
- 1kA
- 2.5kA
- 10kA
- Other
-
Operating properties
- Instantaneous
- High Speed
- Medium speed
- Low Speed
- Other
-
Rated block capacity When DC 60 V(kA)
- 1kA
- 2.5kA
- 10kA
- Other
-
Rated block capacity voltage conditions besides AC 250 V/DC 60 V
- Available
-
Polarity presence
- Available
- NA
-
Warning output presence
- Available
- NA
-
Representative Standard
-
Dimension height(mm)
-
Dimension width(mm)
-
Dimension depth(mm)
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FUJI ELECTRIC
[Features]
· ULCSA standard, including TUV, it satisfies the standards of IEC for insulation distance and withstand voltage performance. It is also compatible for exports to European countries and the US World-Market.
· Small and thin design with a thickness of just 19 mm.
· Alarm switch, auxiliary switch, with inertia delay also equipped.
· We have mastered products up to 4 poles (1 to 3 pole products designed with 1 handle).
· 4 types of operating characteristics, 5 kinds of internal circuits, rated current of 0.05 to 30A 16 types are available, and optimum selection is possible according to the characteristics of the protected equipment.
· Impact resistance performance of 981 m / s2 or more and vibration resistance performance of 98 m / s 2 or more have been achieved.From: ฿ 516.67 Days to Ship: 
90 Day(s)
90 Day(s)
-
You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025FUJI ELECTRIC
[Features]
· Rated breaking capacity 2, 500A [ CP31] and 1, 000A [ CP31D It is a compact, high performance protector which has two kinds of use.
· Because the handle fits into the case in the ON state, there is no error in operation due to inadvertent contact. Furthermore, the ONOFF display is clear.
· With auxiliary switch, (1C contact) is also possible.
· Surface screw mounting, IEC. Supports rail mounting and panel mounting.
· Complete 2 pole simultaneous operation type. [CP-D].From: ฿ 958.33 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 31/12/2024
Until 31/12/2024IDEC
- Circuit protectors NRA series from IDEC.
- Available in 3 different actuator styles, NRAN, NRAR and NRAS.
- Current ratings up to 30A at 250VAC or 65VDC.
- 1, 2 or 3 pole models available.
- Optional DIN rail or surface mount sockets.
- Variety of delay tripping curves.
- Optional inertia delay to prevent nuisance tripping on motor or transformer loads.
- Optional alarm contacts or auxiliary contacts.
- Reliable to over 10,000 operations.
- UL recognized, CSA certified, VDE.From: ฿ 100.00 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 31/03/2025IDEC
- Miniature circuit protectors with hydraulic-magnetic tripping system, NRL series from IDEC.
- Compact size (only 36.6H × 16.8W × 42D mm).
- One-lever (one-rocker) for 2-poles, ensures proper interruption to both poles when one pole is tripped.
- Low, middle, and high-speed response.
- Variety of rated currents and internal circuits.
- Available with auxiliary contacts and inertia delay.
- Over 20,000 mechanical operations, long life also reduces maintenance costs.
- Vibration-proof design.From: ฿ 100.00 Special Price Days to Ship:
Same day
Same day
-
You can add up to 6 items per a category to the compare list.
IDEC
- Circuit Protector, NRBM series from IDEC.
- NRBM is the largest rated current among the IDEC circuit protector series.
- Electromagnetic trip, not affected by ambient temperature.
- Current ratings up to 50A at 250VAC or 65VDC.
- 1, 2 or 3 pole models available.
- Variety of delay curves.
- Optional inertia delay to prevent nuisance tripping on motor or transformer loads.
- Optional alarm contacts or auxiliary contacts.
- Reliable to over 10,000 operations.
- UL recognized, CSA certified.From: ฿ 100.00 Days to Ship:
Quote
Quote
-
You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025IDEC
- Circuit protectors NH1 series from IDEC.
- Wide Range of Applications from Office Automation and Consumer Use to Factory Automation.
- Compact, lightweight, and high-performance circuit protectors.
- Rocker type snaps into a panel.
- Rated voltage: 250V AC and 65V DC.
- 35mm-wide DIN rail mounting (NH1V).
- Available with dual-coil.
- Available with auxiliary contact or alarm contacts.
- Available with inertia delay.
- Hydraulic-magnetic tripping system.
- Available in tab terminal and screw-terminal.From: ฿ 6,113.00 Special Price Days to Ship:
Quote
Quote
-
You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025NH1 Series Circuit Protectors Ⅱ
IDEC
- Circuit protectors NH1 series from IDEC.
- Wide Range of Applications from Office Automation and Consumer Use to Factory Automation.
- Compact, lightweight, and high-performance circuit protectors.
- Rocker type snaps into a panel.
- Rated voltage: 250V AC and 65V DC.
- 35mm-wide DIN rail mounting (NH1V).
- Available with dual-coil.
- Available with auxiliary contact or alarm contacts.
- Available with inertia delay.
- Hydraulic-magnetic tripping system.
- Available in tab terminal and screw-terminal.From: ฿ 100.00 Special Price Days to Ship:
Quote
Quote
-
You can add up to 6 items per a category to the compare list.
NRA Series Circuit Protectors Ⅱ
IDEC
- Circuit protectors NRA series from IDEC.
- Available in 3 different actuator styles, NRAN, NRAR and NRAS.
- Current ratings up to 30A at 250VAC or 65VDC.
- 1, 2 or 3 pole models available.
- Optional DIN rail or surface mount sockets.
- Variety of delay tripping curves.
- Optional inertia delay to prevent nuisance tripping on motor or transformer loads.
- Optional alarm contacts or auxiliary contacts.
- Reliable to over 10,000 operations.
- UL recognized, CSA certified, VDE.From: ฿ 100.00 Days to Ship:
98 Day(s)
98 Day(s)
-
You can add up to 6 items per a category to the compare list.
NRBM Series Circuit Protectors Ⅱ
IDEC
- Circuit Protector, NRBM series from IDEC.
- NRBM is the largest rated current among the IDEC circuit protector series.
- Electromagnetic trip, not affected by ambient temperature.
- Current ratings up to 50A at 250VAC or 65VDC.
- 1, 2 or 3 pole models available.
- Variety of delay curves.
- Optional inertia delay to prevent nuisance tripping on motor or transformer loads.
- Optional alarm contacts or auxiliary contacts.
- Reliable to over 10,000 operations.
- UL recognized, CSA certified.From: ฿ 100.00 Days to Ship:
Quote
Quote
-
You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025
NRL Series Circuit Protectors Ⅱ
IDEC
- Miniature circuit protectors with hydraulic-magnetic tripping system, NRL series from IDEC.
- Compact size (only 36.6H × 16.8W × 42D mm).
- One-lever (one-rocker) for 2-poles, ensures proper interruption to both poles when one pole is tripped.
- Low, middle, and high-speed response.
- Variety of rated currents and internal circuits.
- Available with auxiliary contacts and inertia delay.
- Over 20,000 mechanical operations, long life also reduces maintenance costs.
- Vibration-proof design.From: ฿ 100.00 Special Price Days to Ship:
Quote
Quote
| Brand |
|---|
| Product Series |
| From |
| Days to Ship |
| Rated Current(A) |
| Number of Poles |
| Rated Voltage |
| Rated block capacity When AC 250 V(kA) |
| Operating properties |
| Rated block capacity When DC 60 V(kA) |
| Rated block capacity voltage conditions besides AC 250 V/DC 60 V |
| Polarity presence |
| Warning output presence |
| Representative Standard |
| Dimension height(mm) |
| Dimension width(mm) |
| Dimension depth(mm) |
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 31/12/2024 | 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.  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.  | You can add up to 6 items per a category to the compare list. Until 31/03/2025 | |
| Brand | FUJI ELECTRIC | FUJI ELECTRIC | IDEC | IDEC | IDEC | IDEC | IDEC | IDEC | IDEC | IDEC |
| Product Series | ||||||||||
| From | ฿ 516.67 | ฿ 958.33 Special Price On Sale Until 31/03/2025 | ฿ 100.00 Special Price On Sale Until 31/12/2024 | ฿ 100.00 Special Price On Sale Until 31/03/2025 | ฿ 100.00 | ฿ 6,113.00 Special Price On Sale Until 31/03/2025 | ฿ 100.00 Special Price On Sale Until 31/03/2025 | ฿ 100.00 | ฿ 100.00 | ฿ 100.00 Special Price On Sale Until 31/03/2025 |
| Days to Ship | 90 Day(s) | Same day | Same day | Same day | Quote | Quote | Quote | 98 Day(s) | Quote | Quote |
| Rated Current(A) | 0.05 ～ 30 | 0.3 ～ 30 | 1 ～ 30 | 1 ～ 20 | 1 ～ 50 | 1 | 0.5 ～ 30 | 0.3 ～ 30 | 1 ～ 50 | 0.1 ～ 20 |
| Number of Poles | 1 / 2 / 3 | 1 / 2 | 1 / 2 / 3 | 1 / 2 | 1 / 2 | 3 | 1 / 2 / 3 | 1 / 2 / 3 | 1 / 2 / 3 | 1 / 2 |
| Rated Voltage | AC250V | AC250V | AC250V / DC65V | AC250V | AC250V / DC65V | AC250V / DC65V | AC250V / DC65V | AC250V / DC65V | AC250V / DC65V | AC250V |
| Rated block capacity When AC 250 V(kA) | 1kA | 1kA | 1kA | 1kA | 1kA | 1kA | 1kA | 1kA | 1kA | 1kA |
| Operating properties | Instantaneous / High Speed / Medium speed / Low Speed | Instantaneous / Other | Medium speed | Medium speed | Medium speed | Low Speed | - | - | - | - |
| Rated block capacity When DC 60 V(kA) | - | - | Other | - | Other | Other | Other | Other | Other | - |
| Rated block capacity voltage conditions besides AC 250 V/DC 60 V | - | Available | Available | Available | Available | Available | Available | Available | Available | Available |
| Polarity presence | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| Warning output presence | Available / NA | NA | Available / NA | NA | NA | NA | Available / NA | Available / NA | Available / NA | NA |
| Representative Standard | PSE / CE / UL / CUL / TUV / CSA | PSE | PSE / CE / UL / CUL / CCC / CSA | CE / UL / CCC / CSA | PSE / CE / UL / CUL / CCC / CSA | PSE / CE / UL / CUL / CCC / CSA | PSE / CE / UL / CUL / CCC / CSA | PSE / CE / UL / CUL / CCC / CSA | PSE / CE / UL / CUL / CCC / CSA | CE / UL / CCC / CSA |
| Dimension height(mm) | 51 | 64 | 50.6 ～ 66 | 36.6 ～ 50.8 | 63 | 68.7 | 42 ～ 88 | 50.6 ～ 66 | 63 | 36.6 ～ 50.8 |
| Dimension width(mm) | 19 ～ 76.5 | 25 ～ 50 | 19.1 ～ 57.3 | 16.8 ～ 38 | 19.1 ～ 38.2 | 48 | 16 ～ 48 | 19.1 ～ 57.3 | 19.1 ～ 57.3 | 16.8 ～ 38 |
| Dimension depth(mm) | 68 ～ 79.5 | 71.5 ～ 74 | 70.5 ～ 80.5 | 55.6 ～ 67 | 84 | 67 | 65.5 ～ 71 | 70.5 ～ 80.5 | 84 | 55.6 ～ 69.1 |
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Related Categories to Circuit Protectors
FAQ Circuit Protectors
- Question: What is a circuit protector and why is it essential for electrical equipment?
- Answer: A circuit protector is a safety device that stops an electrical circuit from getting damaged due to overload or short circuits. It helps prevent fires and protects equipment by interrupting the flow of electricity when it's too high. Circuit protectors, like fuses or circuit breakers, act as protectors for devices and wiring, ensuring they don’t get too much electrical power. They are crucial as they keep electrical systems safe, preventing damage and potential dangers.
- Question: How does a circuit protector provide overcurrent protection for different devices?
- Answer: A circuit protector safeguards devices from excessive electrical current. It functions as a barrier, stopping the flow of electricity if it becomes too high. Fuses melt or circuit breakers trip, interrupting the circuit to prevent an overload. Circuit protectors are designed in various sizes and types to match the specific power requirements of different devices, ensuring they receive the right level of protection against excessive current flow, thus preventing damage and ensuring safety.
- Question: How do I select the right circuit protector for my equipment?
- Answer: To choose the correct circuit protector for your equipment, consider its power needs and the type of protection required. Know your equipment's voltage and current requirements, then select a protector (like a fuse or circuit breaker) with slightly higher ratings to match. Consider environmental factors if it will be in a tough environment. Follow safety standards and seek advice from an expert or electrician if unsure about the best fit for your equipment.
- Question: Can circuit protectors also act as power switches for devices, and how?
- Answer: Circuit protectors, like some types of circuit breakers, can function as power switches for devices. When a circuit breaker trips due to an overload, it interrupts the flow of electricity, effectively shutting off power to the device. Resetting the circuit breaker restores power. However, not all circuit protectors act as switches. Some, like fuses, can't be reset and require replacement after "tripping" due to an overcurrent situation.
- Question: How to install and set up a circuit protector safely in a control panel?
- Answer: To safely install a circuit protector in a control panel, start by turning off the power. Select the right circuit protector as per panel specifications. Follow the manufacturer's instructions carefully for compatibility. Mount the protector securely inside the panel and connect the wiring according to provided guidelines, ensuring no exposed wires. Test the protector to ensure it works properly. Finally, cover and close the control panel securely. If unsure, it's best to seek guidance from a qualified electrician or professional to ensure safety during installation.
- Question: What should be considered regarding the compatibility and specification of circuit protectors?
- Answer: When looking at circuit protectors, consider a few important things: First, ensure the circuit protector's voltage and current ratings match the equipment it protects. Decide whether a fuse or a circuit breaker is needed based on the protection required. Make sure the circuit protector physically fits the available space and meets application needs. Choose protectors suitable for the environment where they'll be used and that meet safety standards. Additionally, think about the specific requirements of the equipment being protected.
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