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  6. Switch-compatible circuit protector 3120

Switch-compatible circuit protector 3120

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3120-N

last updated:Jul 04, 2025

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 and switch functions into one unit reduces the number of components. A design that blends well with the equipment. This product is suitable for circuit protection in applications.

The "Switch-Compatible Circuit Protector 3120 Series" eliminates the need for components such as switches, harnesses, fuse holders, and fuses, reducing the number of parts to achieve lower costs and compact size. It does not require fuse replacement, minimizing downtime. When an overcurrent occurs, the circuit breaker function activates, and the rocker switch automatically turns OFF. By removing the abnormal load and turning the rocker switch ON again, it can be reused. Its design harmonizes with various devices and equipment, making it suitable for a wide range of applications. 【Features and Specifications】 ■ Complies with international safety standards for medical electrical equipment (EN60601-1) ■ Also meets UL1077, CSA, VDE, and CQC standards ■ Suitable for a wide range of applications including machine tools, scientific instruments, construction machinery, vehicles, and motors ■ Dimensions: D25×W48×H52mm ■ Products with modules such as auxiliary circuit modules are also available Additionally, we offer: The "3130 Series" with 1-pole to 3-pole options, The fuse holder type "1110 Series," and The "3140 Series" with 3-pole and 4-pole options available in IP66 specifications. We provide circuit protection suitable for our customers.

    switch
イプロスアイコン写真.jpg

Switch-compatible circuit protector 3120

イプロスアイコン写真.jpg
イプロスアイコン写真.jpg s1.PNG 3120-N551-H7T1-W02D.jpg 3120-n503-n7q1_Betaetigungsschutz_blue.jpg 3120-N524-P7T1-W19DG4.jpg 3120-n52v-n7t1_Drucktaster_ON.jpg 3120-n521-Fernausl_Red.jpg 3120-n5216-mit-FilterC14_black_Kabel.jpg 3120-n521-mitStecker_White.jpg 3120-N524-PTT1-W19DG4.jpg
  • E-T-A's website, page 3120-N
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【"3120 Series" Lineup】 <Locker Type>  "3120-N521": Without LED indicator, with LED indicator  "3120-N523": With anti-malfunction barrier  "3120-N524": With waterproof cover (IP65) <Push Button Type>  "3120-N52D" <Optional Modules Available>  "X3120-A": Inlet module with noise filter  "X3120-B": Inlet module  "X3120-U": Low voltage cutoff module  "X3120-M": Remote trip module  "X3120-S": Auxiliary circuit module

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Switch-compatible circuit protector "3120-N series"

Switch-compatible circuit protector "3120-N series"

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■3120-N Switch and Circuit Protector Data Sheet

■3120-N Switch and Circuit Protector Data Sheet

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Switching Circuit Protector for Medical Devices 3120

Switching Circuit Protector for Medical Devices 3120

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Switch-compatible circuit protector 3120-N

Switch-compatible circuit protector 3120-N

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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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News about this product(6)

2025 International Robot Exhibition - Exhibition Information

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International Robot Exhibition 2025 Date: December 3 (Wed) - 6 (Sat), 2025, 10:00 AM - 5:00 PM Location: Tokyo Big Sight, West Hall 2 Booth Number: W2-07 Website: https://irex.nikkan.co.jp/?yclid=YSS.1001344693.EAIaIQobChMIn9uL3uG2kAMV6v9MAh06zgenEAAYAiAAEgJPOvD_BwE&sa_p=YSA&sa_cc=1001344693&sa_t=1761100270100&sa_ra=C9 Exhibited Products: REX System (BASE / COM), Circuit Protectors, Power Relays, and many others.

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JASIS 2025 Advanced Science, Analysis Systems & Solutions Exhibition Exhibition Information

  • Seminar・Event

JASIS 2025 Cutting-Edge Science, Analysis Systems & Solutions Exhibition Date: September 3 (Wednesday) to September 5 (Friday), 10:00 AM to 5:00 PM Location: Makuhari Messe International Exhibition Hall, Halls 5-8 Exhibition Booth: Mini Solutions Exhibition Corner S-19 Website: https://www.jasis.jp/ Exhibited Products: 3120, 1410, 1110, REX, SMPS-T, and many others

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Notice of Exhibition at TECHNO-FRONTIER 2025 from July 23 (Wednesday) to July 25 (Friday).

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E-T-A (Japanese corporate name: E-T-A Components Co., Ltd.) will be exhibiting at TECHNO-FRONTIER 2025. Date: July 23 (Wednesday) to July 25 (Friday), 2025 Time: 10:00 AM to 5:00 PM Location: Tokyo Big Sight, West Hall 4 Booth Number: 4-Y31 TECHNO FRONTIER is one of Asia's largest specialized exhibitions showcasing the latest technologies and products in mechatronics, electronics, and related fields.

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MEX Kanazawa 2025 Announcement of Participation from May 15 (Thursday) to May 17 (Saturday)

  • Seminar・Event

E-T-A (Japanese corporation name: E-T-A Components Co., Ltd.) will be exhibiting at MEX Kanazawa 2025 (the 61st Kanazawa Machine Industry Exhibition). *****************************************************************        ◆◆ MEX Kanazawa 2025 ◆◆        61st Kanazawa Machine Industry Exhibition  Date: May 15 (Thursday) to May 17 (Saturday) 10:00 AM to 5:00 PM  Location: Ishikawa Prefectural Industrial Exhibition Hall, Building 4, Booth No. 038 ***************************************************************** <Exhibited Products> ● Overcurrent protection and distribution system REX system ● Switching power supply SMPS-T ● UL489 certified circuit breaker 4230-T(U) ● Switch and circuit protector 3120-N ● PCB-mounted circuit protector 1410-L ● Various circuit protectors ● High voltage contactors 48V to 3000V, 10A to 2000A

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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.

Product/Service List (125)

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