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Electrical Circuit Protection & Load Centers
Electrical Circuit Protection & Load Centers - Telemecanique Sensors
An electrical service panel, also referred to as a load center, circuit breaker box, or panelboard, is an essential part of a home's electrical system. Its role is to accept power from the utility company and then distribute it to the different electrical circuits in the house.
Subcategories (16)
Motor Starters
Electrical Load Centers
Motor Soft Starters
Earth-Leakage Circuit Breakers (ELCB)
Manual Motor Protectors
Electronic Circuit Breakers (ECBs)
Circuit Protection Accessories
Thermal Overload Relays
Solid State Relays (SSR)
Supplementary Protectors
Line Filters & Conditioners
Fuses & Fuse Holders
Disconnect Switches
Contactors
Molded Case Circuit Breakers (MCCB)
Miniature Circuit Breakers (MCBs)
Found 129 products
Square D by Schneider Electric QOU3707100 is a miniature circuit breaker (MCB) designed for unit mount installation. It features a 3-pole configuration and is rated for a current of 70A. This MCB is equipped with slotted box lugs connections for both load and line sides, accommodating a cross-section of 12-2/0AWG (1 cable Al/Cu). It operates at a rated voltage of 60Vdc and 120V/240V AC, with a short circuit breaking rating of 10kA at 240Vac and 5kA at 48Vdc. The terminals are of the box lugs type.
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Square D by Schneider Electric QOU3701042 is a miniature circuit breaker (MCB) designed for unit mount installation. It features a shunt trip coil, facilitating remote tripping of the breaker. This MCB is rated for a current of 70A and accommodates slotted box lugs connections on both the load and line sides. It is compatible with a cross-section of 12-2/0AWG(1 cable Al/Cu) and is a 3-pole device. The QOU3701042 supports a rated voltage of 60Vdc in DC applications and 120V to 240V in AC applications. Its control voltage ranges from 12Vdc to 24Vdc. The short circuit breaking rating is specified at 10kA for 240Vac and 5kA for 48Vdc, with box lugs as the type of terminals.
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Square D by Schneider Electric QOU3605283 is a unit-mount Miniature Circuit Breaker (MCB) designed for efficient circuit protection. This MCB features a 3-pole configuration and is capable of handling a rated current of 60A. It offers versatile connection options with ring tongue connections on both the load and line sides. The QOU3605283 is engineered to operate at a rated voltage of 120V and 240V for AC circuits, and 48Vdc for DC circuits. It boasts a short circuit breaking rating of 10kA at 240Vac and 5kA at 48Vdc, ensuring effective interruption in the event of a fault. The device utilizes ring tongue type terminals for secure and reliable connections.
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Square D by Schneider Electric QOU3455283 is a unit-mount Miniature Circuit Breaker (MCB) designed for securing electrical circuits. It features a 3-pole configuration and supports a rated current of 45A. This MCB is equipped with ring tongue connections on both the load and line sides, facilitating secure and straightforward installation. It operates effectively at a rated voltage of 120V to 240V AC and 48V DC. The QOU3455283 offers a short circuit breaking rating of 10kA at 240Vac and 5kA at 48Vdc, ensuring protection against overcurrents. The terminals are designed to accommodate ring tongue type connectors.
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Square D by Schneider Electric QOU345 is a unit-mount Miniature Circuit Breaker (MCB) designed for securing electrical circuits. It features a 3-pole configuration and accommodates a rated current of 45A. This MCB is compatible with slotted box lugs connections for both load and line sides, ensuring a secure and stable connection. It is designed to work with a cross-section of 14-2AWG (1 cable Al/Cu), making it versatile for various wiring needs. The QOU345 offers a rated voltage of 120V and 240V for AC circuits and 48Vdc for DC circuits, with a short circuit breaking rating of 10kA at 240Vac and 5kA at 48Vdc. Its terminals are of the box lugs type, facilitating straightforward installation and maintenance.
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Square D by Schneider Electric QOU3301201 is a miniature circuit breaker (MCB) designed for unit mount installation. It features an auxiliary switch with 1b function, suitable for applications requiring a 30A rated current. This MCB offers versatile connection options with slotted box lugs connections for both load and line sides. It is compatible with a cross-section of 14-2AWG for 1 cable Al/Cu and supports a 3 Pole configuration. The QOU3301201 is equipped with 1 NC (Normally Closed) auxiliary contact and has a short circuit breaking rating of 10kA at 240Vac and 5kA at 48Vdc. It operates effectively at a rated voltage of 120V to 240V AC and 48Vdc, featuring box lugs type terminals for secure connections.
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Square D by Schneider Electric QOU3251200 is a miniature circuit breaker (MCB) designed for unit mount installation. It features an auxiliary switch with 1a, suitable for applications requiring a 25A rated current. This MCB offers slotted box lugs connections for both load and line sides, accommodating a cross-section of 14-2AWG for 1 cable Al/Cu. It operates with a 3 Pole configuration and includes 1 Normally Open (NO) auxiliary contact. The QOU3251200 is rated for 48Vdc and 120V/240V AC, with a short circuit breaking rating of 10kA at 240Vac and 5kA at 48Vdc. The terminals are designed as box lugs.
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Square D by Schneider Electric QOU3205283 is a unit-mount Miniature Circuit Breaker (MCB) designed for use in various applications requiring circuit protection. This MCB features a 3-pole configuration and is capable of handling a rated current of 20A. It offers ring tongue connections for both load and line sides, ensuring secure and reliable connections. The QOU3205283 is rated for use with 48Vdc and 120/240Vac systems, providing versatility in both DC and AC applications. It has a short circuit breaking rating of 10kA at 240Vac and 5kA at 48Vdc, which helps to safeguard against overcurrent conditions. The terminals are designed to accommodate ring tongue connectors, facilitating easy installation and maintenance.
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Square D by Schneider Electric QOU3203100 is a unit-mount Miniature Circuit Breaker (MCB) designed for a variety of applications. It features a 3-pole configuration and is capable of handling a rated current of 20A. This MCB is equipped with slotted box lugs connections for both load and line sides, accommodating a cross-section of 14-2AWG (1 cable Al/Cu). It operates at a rated voltage of 120V to 240V AC and 48Vdc, with a short circuit breaking rating of 10kA at 240Vac and 5kA at 48Vdc. The terminals are of the box lugs type, ensuring a secure connection.
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| Item | Manufacturer | Price | Stock | Delivery | |
|---|---|---|---|---|---|
QOU3707100 Square D by Schneider Electric QOU3707100 is a miniature circuit breaker (MCB) designed for unit mount installation. It features a 3-pole configuration and is rated for a current of 70A. This MCB is equipped with slotted box lugs connections for both load and line sides, accommodating a cross-section of 12-2/0AWG (1 cable Al/Cu). It operates at a rated voltage of 60Vdc and 120V/240V AC, with a short circuit breaking rating of 10kA at 240Vac and 5kA at 48Vdc. The terminals are of the box lugs type. | Telemecanique Sensors | Quick Quote | |||
QOU3701042 Square D by Schneider Electric QOU3701042 is a miniature circuit breaker (MCB) designed for unit mount installation. It features a shunt trip coil, facilitating remote tripping of the breaker. This MCB is rated for a current of 70A and accommodates slotted box lugs connections on both the load and line sides. It is compatible with a cross-section of 12-2/0AWG(1 cable Al/Cu) and is a 3-pole device. The QOU3701042 supports a rated voltage of 60Vdc in DC applications and 120V to 240V in AC applications. Its control voltage ranges from 12Vdc to 24Vdc. The short circuit breaking rating is specified at 10kA for 240Vac and 5kA for 48Vdc, with box lugs as the type of terminals. | Telemecanique Sensors | Quick Quote | |||
QOU3605283 Square D by Schneider Electric QOU3605283 is a unit-mount Miniature Circuit Breaker (MCB) designed for efficient circuit protection. This MCB features a 3-pole configuration and is capable of handling a rated current of 60A. It offers versatile connection options with ring tongue connections on both the load and line sides. The QOU3605283 is engineered to operate at a rated voltage of 120V and 240V for AC circuits, and 48Vdc for DC circuits. It boasts a short circuit breaking rating of 10kA at 240Vac and 5kA at 48Vdc, ensuring effective interruption in the event of a fault. The device utilizes ring tongue type terminals for secure and reliable connections. | Telemecanique Sensors | Quick Quote | |||
QOU350 Square D by Schneider Electric QOU350 | Telemecanique Sensors | Quick Quote | |||
QOU3455283 Square D by Schneider Electric QOU3455283 is a unit-mount Miniature Circuit Breaker (MCB) designed for securing electrical circuits. It features a 3-pole configuration and supports a rated current of 45A. This MCB is equipped with ring tongue connections on both the load and line sides, facilitating secure and straightforward installation. It operates effectively at a rated voltage of 120V to 240V AC and 48V DC. The QOU3455283 offers a short circuit breaking rating of 10kA at 240Vac and 5kA at 48Vdc, ensuring protection against overcurrents. The terminals are designed to accommodate ring tongue type connectors. | Telemecanique Sensors | Quick Quote | |||
QOU345 Square D by Schneider Electric QOU345 is a unit-mount Miniature Circuit Breaker (MCB) designed for securing electrical circuits. It features a 3-pole configuration and accommodates a rated current of 45A. This MCB is compatible with slotted box lugs connections for both load and line sides, ensuring a secure and stable connection. It is designed to work with a cross-section of 14-2AWG (1 cable Al/Cu), making it versatile for various wiring needs. The QOU345 offers a rated voltage of 120V and 240V for AC circuits and 48Vdc for DC circuits, with a short circuit breaking rating of 10kA at 240Vac and 5kA at 48Vdc. Its terminals are of the box lugs type, facilitating straightforward installation and maintenance. | Telemecanique Sensors | Quick Quote | |||
QOU3301201 Square D by Schneider Electric QOU3301201 is a miniature circuit breaker (MCB) designed for unit mount installation. It features an auxiliary switch with 1b function, suitable for applications requiring a 30A rated current. This MCB offers versatile connection options with slotted box lugs connections for both load and line sides. It is compatible with a cross-section of 14-2AWG for 1 cable Al/Cu and supports a 3 Pole configuration. The QOU3301201 is equipped with 1 NC (Normally Closed) auxiliary contact and has a short circuit breaking rating of 10kA at 240Vac and 5kA at 48Vdc. It operates effectively at a rated voltage of 120V to 240V AC and 48Vdc, featuring box lugs type terminals for secure connections. | Telemecanique Sensors | Quick Quote | |||
QOU3251200 Square D by Schneider Electric QOU3251200 is a miniature circuit breaker (MCB) designed for unit mount installation. It features an auxiliary switch with 1a, suitable for applications requiring a 25A rated current. This MCB offers slotted box lugs connections for both load and line sides, accommodating a cross-section of 14-2AWG for 1 cable Al/Cu. It operates with a 3 Pole configuration and includes 1 Normally Open (NO) auxiliary contact. The QOU3251200 is rated for 48Vdc and 120V/240V AC, with a short circuit breaking rating of 10kA at 240Vac and 5kA at 48Vdc. The terminals are designed as box lugs. | Telemecanique Sensors | Quick Quote | |||
QOU3205283 Square D by Schneider Electric QOU3205283 is a unit-mount Miniature Circuit Breaker (MCB) designed for use in various applications requiring circuit protection. This MCB features a 3-pole configuration and is capable of handling a rated current of 20A. It offers ring tongue connections for both load and line sides, ensuring secure and reliable connections. The QOU3205283 is rated for use with 48Vdc and 120/240Vac systems, providing versatility in both DC and AC applications. It has a short circuit breaking rating of 10kA at 240Vac and 5kA at 48Vdc, which helps to safeguard against overcurrent conditions. The terminals are designed to accommodate ring tongue connectors, facilitating easy installation and maintenance. | Telemecanique Sensors | Quick Quote | |||
QOU3203100 Square D by Schneider Electric QOU3203100 is a unit-mount Miniature Circuit Breaker (MCB) designed for a variety of applications. It features a 3-pole configuration and is capable of handling a rated current of 20A. This MCB is equipped with slotted box lugs connections for both load and line sides, accommodating a cross-section of 14-2AWG (1 cable Al/Cu). It operates at a rated voltage of 120V to 240V AC and 48Vdc, with a short circuit breaking rating of 10kA at 240Vac and 5kA at 48Vdc. The terminals are of the box lugs type, ensuring a secure connection. | Telemecanique Sensors | Quick Quote | |||
Electrical Circuit Protection & Load Centers
General Guide & Overview
A load center, also known as an electrical service panel, circuit breaker box, or panelboard, is a crucial component of a home's electrical system. It functions to receive incoming power from the utility company and distribute it to the various electrical circuits throughout the house. There are two main types of load centers: main breaker load centers and main lug load centers. Main breaker load centers have a built-in main breaker that provides overcurrent protection for all the downstream circuits. On the other hand, main lug load centers have a single lug and do not have a main breaker. They are often used as subpanels to add additional circuits to an existing electrical system. Load centers are essential for ensuring the safety and efficiency of the electrical distribution in a home.
Understanding Load Centers and Panelboards
Load centers and panelboards, which are essentially the same thing, serve as the central distribution centers for electrical power in a residential setting. They house circuit breakers that safeguard individual electrical circuits throughout the home. The load center receives power from either the utility company or another load center and then efficiently distributes it to the various branch circuits.
Each circuit within the load center is safeguarded by a circuit breaker, designed to trip and cut off the power in case of an overload or short circuit. This vital feature ensures the protection and safety of the electrical circuits.
Load centers are available in various sizes and configurations to cater to the specific requirements of a home's electrical system. This versatility allows them to effectively accommodate diverse electrical power distribution needs.
Main Breaker Load Centers vs. Main Lug Load Centers
When it comes to the primary load centers in a home's electrical system, two options stand out: main breaker load centers and main lug load centers. Understanding the differences between these two components is crucial for designing an efficient and reliable electrical system.
Main breaker load centers are the centerpiece of the electrical system. They are installed at the service entrance point, directly receiving power from the utility company. The main breaker built into these load centers provides overcurrent protection for all the downstream circuits, ensuring the safety and integrity of the electrical distribution.
On the other hand, main lug load centers, also known as subpanels, are typically installed downstream from the main breaker load center. They serve as additional distribution points for adding circuits to the electrical system. Unlike main breaker load centers, main lug load centers do not have a built-in main breaker. Instead, they rely on the main breaker in the main load center for overcurrent protection.
One of the advantages of using main lug load centers is the ability to create independent electrical zones. This is particularly useful when building accessory dwelling units or needing to expand the number of circuits in a home. By installing a main lug load center as a subpanel, you can isolate and control specific areas of your electrical system.
Whether you opt for a main breaker load center or a main lug load center, both options play an essential role in the distribution and protection of electrical power throughout your home. The choice depends on the specific needs of your electrical system and the desired level of control and flexibility you require.
Load centers are vital for ensuring the safety, efficiency, and proper distribution of electrical power in a home's electrical system. Acting as the central hub, load centers distribute electrical power to various circuits throughout the house while providing essential circuit protection. Whether it is a main breaker load center or a main lug load center, these components accurately distribute and protect electrical power from potential overloads or short circuits.
Choosing the appropriate load center for your electrical system is essential in maintaining a safe and efficient electrical setup. It is crucial to consider factors such as the size and configuration of the load center to ensure it meets the specific needs of your home. Following proper installation and maintenance procedures is also critical for the longevity and reliability of the electrical system.
By utilizing the right load center and implementing proper circuit protection measures, you can guarantee the safety and efficiency of your home's power system. Electrical circuit protection, efficiency, and safety should always be a priority when considering load centers and their role in your electrical system's distribution of circuits.
FAQ
What is a load center?
A load center, also known as an electrical service panel, circuit breaker box, or panelboard, is a crucial component of a home's electrical system. It functions to receive incoming power from the utility company and distribute it to the various electrical circuits throughout the house.
What is the purpose of a load center?
Load centers, also referred to as panelboards, contain circuit breakers that protect the individual electrical circuits throughout the house. They receive power from the utility company or another load center and distribute it to the various branch circuits, ensuring the safety and efficiency of the electrical distribution in a home.
What are the main types of load centers?
The main types of load centers are main breaker load centers and main lug load centers. Main breaker load centers have a built-in main breaker that provides overcurrent protection for all the downstream circuits. Main lug load centers, on the other hand, have a single lug and do not have a main breaker. They are often used as subpanels to add additional circuits to an existing electrical system.
What is the difference between main breaker load centers and main lug load centers?
Main breaker load centers are the primary load centers in a home's electrical system. They have a built-in main breaker that provides overcurrent protection for all the downstream circuits. Main lug load centers, also known as subpanels, do not have a main breaker. They are typically installed downstream from the main breaker load center to add additional circuits to the electrical system. Main lug load centers create independent electrical zones and rely on the main breaker in the main load center for overcurrent protection.
Why are load centers important?
Load centers play a critical role in the electrical circuit protection and overall efficiency and safety of a home's electrical system. They serve as the central hub for distributing electrical power to the various circuits throughout the house, ensuring that the power is accurately distributed and protected from potential overloads or short circuits. Choosing the appropriate load center and following proper installation and maintenance procedures is essential for the longevity and reliability of the system.