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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 QOU3901042 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 90A and accommodates slotted box lugs connections on both the load and line sides. It supports a cross-section of 12-2/0AWG for one cable, either aluminum or copper. The QOU3901042 is a 3-pole device, compatible with control voltages ranging from 12Vdc to 24Vdc. It is designed to operate at a rated voltage of 60Vdc in DC circuits and 120V or 240V in AC circuits. The short circuit breaking rating is specified at 10kA for 240Vac and 5kA for 60Vdc, with box lugs as the type of terminals.
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Square D by Schneider Electric QOU3601021 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 60A and accommodates slotted box lugs connections on both the load and line sides. It is compatible with a cross-section of 14-2AWG for one aluminum or copper cable. The QOU3601021 is a 3-pole device, supporting rated voltages of 48Vdc and 120V/240V AC, with a control voltage range of 120Vac to 208Vac. It has a short circuit breaking rating of 10kA at 240Vac and 5kA at 48Vdc. The terminals are box lugs type, designed for secure and reliable connections.
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Square D by Schneider Electric QOU3501021 is a miniature circuit breaker (MCB) designed for unit mount installation. It features a shunt trip coil, making it suitable for applications requiring remote trip functionality. This MCB is rated for a current of 50A and accommodates slotted box lugs connections on both the load and line sides. It supports a cross-section of 14-2AWG for 1 cable Al/Cu. The QOU3501021 is a 3-pole device, compatible with rated voltages of 48Vdc and 120V/240V AC. Its control voltage ranges from 120Vac to 208Vac. The short circuit breaking rating stands 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 QOU3401021 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 40A and accommodates slotted box lugs connections on both the load and line sides. It is compatible with a cross-section of 14-2AWG for one aluminum or copper cable. The QOU3401021 is a 3-pole breaker, suitable for systems with rated voltages of 48Vdc and 120V/240V AC. It operates within a control voltage range of 120Vac to 208Vac. The short circuit breaking rating stands 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 QOU335 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 35A. This MCB is compatible with both AC and DC applications, supporting rated voltages of 120V and 240V for AC, and 48Vdc for DC. It is equipped with slotted box lugs connections on both the load and line sides, facilitating connections with a cross-section range of 14-2AWG for aluminum or copper cables. The QOU335 offers a short circuit breaking rating of 10kA at 240Vac and 5kA at 48Vdc, utilizing box lugs as its terminal type.
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Square D by Schneider Electric QOXD263 is a Miniature Circuit Breaker (MCB) designed for branch circuit protection. It features a plug-in mounting mode and a plug-in connection type, facilitating easy installation. This MCB is rated for a current of 63A and can operate at rated voltages of 240V or 415V AC. It is a 2-pole device, ensuring it can interrupt both phases in a two-phase system. The QOXD263 has a short circuit breaking rating of 3kA at 415Vac and utilizes press plate terminals for secure wire connection.
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Square D by Schneider Electric QOXD216 is a Miniature Circuit Breaker (MCB) designed for branch circuit protection. It features a plug-in mounting mode and a plug-in connection type, facilitating easy installation. This MCB is rated for a current of 16A and can operate at a rated voltage of 240V to 415V AC. It is a 2 Pole circuit breaker with a short circuit breaking rating of 3kA at 415Vac. The QOXD216 is equipped with press plate terminals for secure wire connection.
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Square D by Schneider Electric QOXD125 is a miniature circuit breaker (MCB) designed for branch circuit protection. It features a plug-in mounting mode and a plug-in connection type, facilitating easy installation. This MCB is rated for a current of 25A and can operate at rated voltages of 240V or 415V AC. It is a single-pole device, ensuring it can be used in a variety of circuit configurations. The QOXD125 has a short circuit breaking rating of 3kA at 415Vac and is equipped with press plate terminals for secure wire connections.
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Square D by Schneider Electric QOBXD332 is a miniature circuit breaker (MCB) designed for branch circuit protection. It features a bolt-on mounting mode and a bolt-on connection type, ensuring secure installation. This MCB is rated for a current of 32A and can operate at rated voltages of 240V or 415V AC. It is a 3-pole device, providing multi-phase protection, and has a short circuit breaking rating of 3kA at 415Vac. The QOBXD332 is equipped with press plate terminals for reliable wire connection.
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Square D by Schneider Electric QYU110 is a Miniature Circuit Breaker (MCB) designed for unit mount installation. It functions as a unit-mount supplementary protector with a rated current of 10A and a rated voltage of 277V AC. This MCB accommodates a cross-section of 14-2AWG for 1 cable Al/Cu and features 1 pole. It has a short circuit breaking rating of 5kA at 277Vac and is equipped with lug type terminals.
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| Item | Manufacturer | Price | Stock | Delivery | |
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QOU3901042 Square D by Schneider Electric QOU3901042 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 90A and accommodates slotted box lugs connections on both the load and line sides. It supports a cross-section of 12-2/0AWG for one cable, either aluminum or copper. The QOU3901042 is a 3-pole device, compatible with control voltages ranging from 12Vdc to 24Vdc. It is designed to operate at a rated voltage of 60Vdc in DC circuits and 120V or 240V in AC circuits. The short circuit breaking rating is specified at 10kA for 240Vac and 5kA for 60Vdc, with box lugs as the type of terminals. | Telemecanique Sensors | Quick Quote | |||
QOU3601021 Square D by Schneider Electric QOU3601021 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 60A and accommodates slotted box lugs connections on both the load and line sides. It is compatible with a cross-section of 14-2AWG for one aluminum or copper cable. The QOU3601021 is a 3-pole device, supporting rated voltages of 48Vdc and 120V/240V AC, with a control voltage range of 120Vac to 208Vac. It has a short circuit breaking rating of 10kA at 240Vac and 5kA at 48Vdc. The terminals are box lugs type, designed for secure and reliable connections. | Telemecanique Sensors | Quick Quote | |||
QOU3501021 Square D by Schneider Electric QOU3501021 is a miniature circuit breaker (MCB) designed for unit mount installation. It features a shunt trip coil, making it suitable for applications requiring remote trip functionality. This MCB is rated for a current of 50A and accommodates slotted box lugs connections on both the load and line sides. It supports a cross-section of 14-2AWG for 1 cable Al/Cu. The QOU3501021 is a 3-pole device, compatible with rated voltages of 48Vdc and 120V/240V AC. Its control voltage ranges from 120Vac to 208Vac. The short circuit breaking rating stands at 10kA for 240Vac and 5kA for 48Vdc, with box lugs as the type of terminals. | Telemecanique Sensors | Quick Quote | |||
QOU3401021 Square D by Schneider Electric QOU3401021 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 40A and accommodates slotted box lugs connections on both the load and line sides. It is compatible with a cross-section of 14-2AWG for one aluminum or copper cable. The QOU3401021 is a 3-pole breaker, suitable for systems with rated voltages of 48Vdc and 120V/240V AC. It operates within a control voltage range of 120Vac to 208Vac. The short circuit breaking rating stands at 10kA for 240Vac and 5kA for 48Vdc, with box lugs as the type of terminals. | Telemecanique Sensors | Quick Quote | |||
QOU335 Square D by Schneider Electric QOU335 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 35A. This MCB is compatible with both AC and DC applications, supporting rated voltages of 120V and 240V for AC, and 48Vdc for DC. It is equipped with slotted box lugs connections on both the load and line sides, facilitating connections with a cross-section range of 14-2AWG for aluminum or copper cables. The QOU335 offers a short circuit breaking rating of 10kA at 240Vac and 5kA at 48Vdc, utilizing box lugs as its terminal type. | Telemecanique Sensors | Quick Quote | |||
QOXD263 Square D by Schneider Electric QOXD263 is a Miniature Circuit Breaker (MCB) designed for branch circuit protection. It features a plug-in mounting mode and a plug-in connection type, facilitating easy installation. This MCB is rated for a current of 63A and can operate at rated voltages of 240V or 415V AC. It is a 2-pole device, ensuring it can interrupt both phases in a two-phase system. The QOXD263 has a short circuit breaking rating of 3kA at 415Vac and utilizes press plate terminals for secure wire connection. | Telemecanique Sensors | Quick Quote | |||
QOXD216 Square D by Schneider Electric QOXD216 is a Miniature Circuit Breaker (MCB) designed for branch circuit protection. It features a plug-in mounting mode and a plug-in connection type, facilitating easy installation. This MCB is rated for a current of 16A and can operate at a rated voltage of 240V to 415V AC. It is a 2 Pole circuit breaker with a short circuit breaking rating of 3kA at 415Vac. The QOXD216 is equipped with press plate terminals for secure wire connection. | Telemecanique Sensors | Quick Quote | |||
QOXD125 Square D by Schneider Electric QOXD125 is a miniature circuit breaker (MCB) designed for branch circuit protection. It features a plug-in mounting mode and a plug-in connection type, facilitating easy installation. This MCB is rated for a current of 25A and can operate at rated voltages of 240V or 415V AC. It is a single-pole device, ensuring it can be used in a variety of circuit configurations. The QOXD125 has a short circuit breaking rating of 3kA at 415Vac and is equipped with press plate terminals for secure wire connections. | Telemecanique Sensors | Quick Quote | |||
QOBXD332 Square D by Schneider Electric QOBXD332 is a miniature circuit breaker (MCB) designed for branch circuit protection. It features a bolt-on mounting mode and a bolt-on connection type, ensuring secure installation. This MCB is rated for a current of 32A and can operate at rated voltages of 240V or 415V AC. It is a 3-pole device, providing multi-phase protection, and has a short circuit breaking rating of 3kA at 415Vac. The QOBXD332 is equipped with press plate terminals for reliable wire connection. | Telemecanique Sensors | Quick Quote | |||
QYU110 Square D by Schneider Electric QYU110 is a Miniature Circuit Breaker (MCB) designed for unit mount installation. It functions as a unit-mount supplementary protector with a rated current of 10A and a rated voltage of 277V AC. This MCB accommodates a cross-section of 14-2AWG for 1 cable Al/Cu and features 1 pole. It has a short circuit breaking rating of 5kA at 277Vac and is equipped with lug type terminals. | 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.