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  6. Waterproof circuit protector

Waterproof circuit protector

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last updated:Jul 21, 2026

イーティーエィコンポーネンツ(E-T-A)
イーティーエィコンポーネンツ(E-T-A)
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Are you looking for a circuit protector with waterproof features?

You can add waterproof and dustproof functions to applications that were not originally designed to be waterproof. You can choose the desired specifications for circuit protectors ranging from 0.05A to 125A. ■ Integrated waterproof and dustproof function - 3120 (1 pole, 2 poles) ■ Waterproof and dustproof function with waterproof cover installation - 106 (1 pole) - 1110 (1 pole) - 1658 (1 pole) - 3130-F130 (3 poles) - 4130 (1 pole) - 2-5700 (1 pole) - 8340 (1 pole to 3 poles) - 8345 (1 pole to 3 poles)

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防水機能付サーキットプロテクタ.jpg

Waterproof circuit protector

防水機能付サーキットプロテクタ.jpg
防水機能付サーキットプロテクタ.jpg 106防水カバー.png 1110_防水とターミナルカバー.jpg 1658_mit_X20128501.jpg 3120-N524-P7T1-W19DG4.jpg 3130_F130_splash.jpg 4130.jpg 2-5700_DD.jpg 8340-F-1.jpg.png 8345-F-1.jpg
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basic information

■Integrated waterproof and dustproof functionality ・3120 series IP65 【Specifications】 ■ Standards: CQC, VDE, UL, CSA ■ Cut-off method: Thermal ■ Rated voltage: AC250V / DC50V ■ Rated current: 0.1A --- 20A ■ Terminal: Blade terminal (#250) *For other details, please refer to the data sheet of each product.

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Market examples: medical devices, food equipment, outdoor measuring instruments, power tools, etc.

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Model number overview
106
1110
1658
3120
3130-F130
4130
2-5700
8340
8345

catalog(17)

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Waterproof circuit protector

Waterproof circuit protector

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Waterproof circuit protector (IP65 compliant) 3120

Waterproof circuit protector (IP65 compliant) 3120

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Switch-compatible circuit protector 3120-N

Switch-compatible circuit protector 3120-N

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Switching Circuit Protector for Medical Devices 3120

Switching Circuit Protector for Medical Devices 3120

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■104, 105, 106 Small Single-Pole Circuit Protector Data Sheet

■104, 105, 106 Small Single-Pole Circuit Protector Data Sheet

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■3120-N Switch and Circuit Protector Data Sheet

■3120-N Switch and Circuit Protector Data Sheet

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■3130 Switch-Combined Circuit Protector Data Sheet

■3130 Switch-Combined Circuit Protector Data Sheet

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■1658 Small Single-Pole Circuit Protector Data Sheet

■1658 Small Single-Pole Circuit Protector Data Sheet

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■4130 Small Size High Current Circuit Protector Data Sheet

■4130 Small Size High Current Circuit Protector Data Sheet

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■8345 Shock and Vibration Resistant Circuit Protector Data Sheet

■8345 Shock and Vibration Resistant Circuit Protector Data Sheet

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■1110 Fuse Holder Type Circuit Protector Data Sheet

■1110 Fuse Holder Type Circuit Protector Data Sheet

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■3131-A Waterproof IP66 Switch and Circuit Protector Data Sheet E

■3131-A Waterproof IP66 Switch and Circuit Protector Data Sheet E

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■3131-B Waterproof IP66 2-point/3-point Switch Data Sheet E

■3131-B Waterproof IP66 2-point/3-point Switch Data Sheet E

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■3140 Switch-compatible 3-pole circuit protector datasheet

■3140 Switch-compatible 3-pole circuit protector datasheet

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■8340-F Impact and Vibration Resistant Circuit Protector Data Sheet

■8340-F Impact and Vibration Resistant Circuit Protector Data Sheet

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■8340-G Shock and Vibration Resistant Circuit Protector Data Sheet E

■8340-G Shock and Vibration Resistant Circuit Protector Data Sheet E

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■2-5000, 2-5700 Small 1-Pole Circuit Protector Data Sheet

■2-5000, 2-5700 Small 1-Pole Circuit Protector Data Sheet

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Company information

イーティーエィコンポーネンツ(E-T-A)

イーティーエィコンポーネンツ(E-T-A)

Industrial Electrical Equipment

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E-T-A was founded in Germany in 1948 as a specialized manufacturer of circuit protector relays and has since grown into a global leader in overcurrent protection and power distribution systems. With the concept of "We protect lives and assets," our role is to protect people and machines from dangerous situations such as overcurrents and short circuits in electrical circuits. We take pride in having one of the widest product ranges and the highest number of certifications in the world, being recognized globally as a market leader, and continuously evolving by offering various solutions from individual components to complete systems. We own a UL-certified testing laboratory in-house and are committed to the development of global safety standards. The Japanese subsidiary of E-T-A was established in 1994. We aim to provide not only product deliveries but also to visualize our customers' concerns and questions regarding safety and offer appropriate advice through solution-oriented engineering. For us, quality is the culmination of hardware safety and reliability, along with the added value of engineering and services.

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