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Blue Sea Systems

2142-BSS

Circuit breaker with push-button reset only, medium duty - 50 A

Designed for protection of marine circuits, this BLUE SEA 50A circuit breaker offers simple push-button reset. It provides reliable protection against overcurrent for medium-power equipment. No additional accessories are included.

Retail priceBenefit from the professional rate

62,40€

62,40€ ~~68,82€~~

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In stock

Free pickup point shipping over €150 in France
Pickup at Skysat possible

Custom installation

Trust Skysat to install the equipment on board

Request a quote

Installers near you

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Support service

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Technical specifications

Breaker Type	Thermal trip, manual reset via pushbutton
Amperage	50.0
Max Voltage	48 V DC
Poles	1.0
Mounting type	Panel installation
Reset Type	Pushbutton
Interrupt Capacity A	3000.0
Terminal Stud	Goujon #10-32
Protection anti-déflagrante	Oui
IP rating	IP66
Certifications	SAE J1428,SAE J553,UL 1077,UL 1500,CE,RoHS
Couleur / finition	Black
Body material	Thermoplastic
Diamètre de découpe d'installation	15.9
Humidity Operating Range Percent	Up to 95% (no condensation)
Max Cable Cross Section Awg	10 AWG
Profondeur d'encastrement	40
Poids net du produit	50
Operating Temperature Range C	-25°C to 85°C
Poids emballé	75
Product range	Medium Duty
Product type	Circuit breaker
Résistance au brouillard salin	Yes
Storage Temperature Range C	-40°C to 120°C
Terminal Stud Size Imperial	#10-32
Terminal Stud Torque Nm	2.2
UV resistance	Yes

Detailed description

Designed for protection of marine electrical circuits, the BLUE SEA 2142-BSS 50A circuit breaker is a "medium duty" push-button type solution. It provides reliable protection against overcurrents, essential for the safety of onboard equipment and electrical systems.

Protection and ease of use

This circuit breaker features a push-button reset mechanism, allowing quick restoration of the circuit after tripping without requiring fuse replacement. This functionality makes it particularly suitable for applications where easy access and immediate responsiveness are required. The 2142-BSS model differs from lever-type circuit breakers that can also serve as switches, focusing solely on the protection function.

Technical positioning

With its 50-ampere capacity and "medium duty" design, this BLUE SEA circuit breaker is ideal for protecting specific loads such as bilge pumps, small inverters, or certain lighting circuits. It complements the brand's more complex power distribution systems by providing individualized protection where most relevant, without cluttering a main panel. Its compact dimensions and provided cutout template facilitate integration into various electrical panels or junction boxes.

Expert opinion

Pol CONIN

Digital Manager

« 50A BLUE SEA circuit breaker: targeted and resettable protection »

The BLUE SEA 2142-BSS circuit breaker is a relevant solution for targeted protection of secondary circuits on any type of vessel. Its 50A capacity is designed for intermediate loads such as high-power bilge pumps, certain DC/DC converters, or large LED lighting arrays.

The main advantage of this model lies in its push-button reset function, which simplifies managing trips. Unlike a lever-type circuit breaker that often combines protection and manual interruption functions, the 2142-BSS is a pure protection device. This is particularly useful for circuits not intended to be frequently switched but requiring reliable overcurrent protection.

Installation is straightforward thanks to its compact size and provided cutout templates, allowing discreet mounting in secondary panels or junction boxes. It is an excellent option for complementing a main distribution system by adding dedicated protection for specific equipment without overloading the main switchboards. Note that it is not designed for protecting critical circuits requiring regular manual isolation or currents exceeding 50A without parallel connection.

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Circuit breaker with push-button reset only, medium duty - 50 A

62,40€

62,40€ ~~68,82€~~

Frequently Asked Questions

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What is the main function of the BLUE SEA 2142-BSS 50A circuit breaker?

The main function of this circuit breaker is to provide reliable protection against overcurrent in marine electrical circuits. It safeguards onboard equipment and electrical systems by cutting the circuit in case of overload, preventing damage.

How is the 2142-BSS circuit breaker reset after tripping?

This breaker is of the 'reset only' type and features a push-button reset mechanism. After tripping due to an overcurrent, simply press the button to restore the circuit without needing to replace a fuse.

For which marine applications is this 50A circuit breaker best suited?

With its 50-amp capacity and 'medium duty' design, this circuit breaker is ideal for protecting specific loads aboard. It is recommended for applications such as bilge pumps, small power inverters, certain lighting circuits, or other equipment requiring individual overcurrent protection.

Is this circuit breaker designed for the marine environment?

Yes, the BLUE SEA 2142-BSS circuit breaker is specifically designed for marine applications. Its construction and materials are selected to withstand the harsh conditions of the nautical environment, such as humidity and temperature variations.

What types of terminals are used for electrical connection?

The BLUE SEA 2142-BSS circuit breaker uses #10-32 stud-type terminals for electrical connection. These studs allow secure cable connections using appropriate lugs.

Can this circuit breaker be used as an on/off switch?

No, this circuit breaker is of the 'reset only' type. It is designed to trip and protect a circuit in case of overcurrent, then be reset. It must not be used as a switch to manually turn equipment on or off, unlike lever-type circuit breakers that can serve this dual function.

How is the BLUE SEA 2142-BSS circuit breaker installed in an electrical panel?

The BLUE SEA 2142-BSS circuit breaker is designed for easy integration into a marine electrical panel or junction box. To simplify installation, a cutting template is provided, allowing precise cutting for flush-mount installation of the push-button circuit breaker. Its compact dimensions are an advantage for integration into often tight spaces. Once the opening is made, the circuit breaker is secured and the electrical connections of the protected circuit are established.

What is the main function of this 50A "Reset Only" circuit breaker?

The BLUE SEA 2142-BSS circuit breaker is a 50-amp "Reset Only" model, meaning its sole and primary function is the protection of marine electrical circuits against overcurrents. Unlike lever-type circuit breakers that can also serve as switches to turn circuits on or off, this model focuses exclusively on detecting and interrupting excessive current.

With a 50A rating, it is ideal for protecting specific loads such as:

Bilge pumpsSmall invertersCertain lighting circuitsWhen tripped due to an overcurrent, resetting the circuit is done simply by pressing its button, eliminating the need to replace a fuse.