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  6. Small 2-pole circuit protector 3120-N-G

Small 2-pole circuit protector 3120-N-G

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3120-N Series

last updated:Mar 04, 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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Combining overcurrent protection for two poles into one reduces the number of components. A design that fits well with the equipment. This product is suitable for circuit protection in applications.

Small 2-Pole Thermal Circuit Protector 3120-N-G Series Simultaneous overcurrent protection for two poles expands design possibilities. 1. Simultaneously disconnects two circuits 2. Both positive and negative disconnection is possible Additionally, as a circuit protector, it eliminates the need for fuse replacement, reducing downtime. When the overcurrent causes the disconnection function to activate, the push button pops out, disconnecting the circuit (automatically OFF). By removing the abnormal load and turning the push button ON, it can be reused. 【Features】 ■ Compact with 2 poles ■ Complies with international safety standards for medical electrical equipment (EN60601-1) ■ Also meets UL1077, CSA, VDE, and CQC standards ■ Dimensions: D26.4×W52.1×H52.4mm ■ Products with module options such as auxiliary circuit modules are also available *This product is the circuit protector 3120-N-G, which has only the disconnection function without the switch function of the switch-compatible circuit protector 3120-N series. There is a separate page for the switch-compatible circuit protector 3120 series.

    Circuit breakers and switches
3120-n52g-reset_Schutzschalter.jpg

Small 2-pole circuit protector 3120-N-G

3120-n52g-reset_Schutzschalter.jpg
3120-n52g-reset_Schutzschalter.jpg s1.PNG 3120-n52g-reset.jpg 3120-N52G-H7M1-D01X.jpg
  • E-T-A's website, page 3120-N
  • Special site - Product/service details - https://pr.mono.ipros.com/e-t-a/product/

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【'3120 Series' Lineup】 【Specifications】 Rated Voltage: AC240V/DC50V Rated Current: 0.1A - 20A Operation Method: Manual Reset (After the circuit breaker function is activated, the push button pops out, so press it to turn ON and reset.) <Optional Modules Available>  "X3120-U": Low Voltage Cutoff Module  "X3120-M": Remote Trip Module  "X3120-S": Auxiliary Circuit Module

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The design that harmonizes with various devices and equipment is also a feature, and it is active in a wide range of fields. *For more details, please refer to the materials. Feel free to contact us as well.

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3120-N-G Small 2-pole circuit protector
3120-N series Switch-compatible 2-pole circuit protector

catalog(7)

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■3120-N Switch and Circuit Protector Data Sheet

■3120-N Switch and Circuit Protector Data Sheet

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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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Waterproof circuit protector (IP65 compliant) 3120

Waterproof circuit protector (IP65 compliant) 3120

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AC inlet circuit protector

AC inlet circuit protector

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Waterproof circuit protector

Waterproof circuit protector

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Switch-compatible circuit protector "3120-N series"

Switch-compatible circuit protector "3120-N series"

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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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