Thermal Circuit Breaker 3120-N: All-In-One Solution - Protecting and Switching in a Single Component 
For many design engineers it is the perfect solution to make their equipment reliable, compact and economic - all at once. The 3120-N thermal circuit breaker is the professional all-in-one solution for devices and machines. Well-proven a million times over, the 3120 reliably disconnects overcurrent and also serves as an ON/OFF switch. After tripping due to an overcurrent, the user can easily and quickly reset the 3120-N to resume operation. Time-consuming replacement of fuses is eliminated.
Your Benefits
* Unrivalled equipment availability
* Reduced mounting and wiring time
* pace-saving design
* Reduced planning and storage costs
* Enhanced reliability
Seven In One
E-T-A's 3120-N circuit breaker here replaces 2 blade fuse holders, 2 blade fuses, a double pole rocker switch as well as the two cable connections between the rocker switch and fuse holder.
You are Free to Choose
A wealth of product versions is available of the 3120-N circuit breaker/switch combination. Depending on the requirements, you can choose between rocker and push button actuation. Product versions range from standard types to versions with actuator and/or dust and water splash protection.
Easy Actuation
Thanks to freely accessible rocker actuators and large push buttons, the breakers can conveniently be operated even if fitted with actuator guards or water splash protection. Switching the device is simple, even when the user is wearing gloves. Particularly noteworthy is the globally unique variant with innovative accordion-style seal. Even this version features a freely accessible rocker which provides a clearly visible status indication (ON or OFF).
International Approvals
Thanks to a great number of international approvals, the 3120-N is fit for global use:
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