Skip to content

Power Distribution

Filters

Circuit Breaker 60 Amp 2 in. Double-Pole Circuit Q-Line 1
SKU 736401

Circuit Breaker 60 Amp 2 in. Double-Pole Circuit Q-Line

$18.87 - $18.87
$18.87
$18.87 - $18.87
$18.87
In stock

Delivery

Today within 4 hours or scheduled 2-hour window

About This Product The 60 Amp 2 in. Double-Pole Circuit Breaker features tin-plated copper stabs for dependable, lasting, and corrosion-resistant c...

View full details
Circuit Breaker 50-Space Amp 1 in. Double-Pole Circuit Q-Line 1
SKU 786530

Circuit Breaker 50-Space Amp 1 in. Double-Pole Circuit Q-Line

$14.50 - $14.50
$14.50
$14.50 - $14.50
$14.50
In stock

Delivery

Today within 4 hours or scheduled 2-hour window

About This Product The 50 Amp 1 in. Double-Pole Circuit Breaker includes a case constructed from heat-resistant thermoset material for durability a...

View full details
Circuit Breaker 50 Amp 2 in. Double-Pole Circuit Q-Line 1
SKU 817563

Circuit Breaker 50 Amp 2 in. Double-Pole Circuit Q-Line

$18.87 - $18.87
$18.87
$18.87 - $18.87
$18.87
In stock

Delivery

Today within 4 hours or scheduled 2-hour window

About This Product The 50 Amp 2 in. Double-Pole Circuit Breaker features a dedicated calibration screw that is secured to prevent any movement. The...

View full details
Circuit Breaker 40 Amp 2 in. Double-Pole Circuit Q-Line 1
SKU 889515

Circuit Breaker 40 Amp 2 in. Double-Pole Circuit Q-Line

$18.87 - $18.87
$18.87
$18.87 - $18.87
$18.87
In stock

Delivery

Today within 4 hours or scheduled 2-hour window

About This Product The 40 Amp 2 in. Double-Pole Circuit Breaker features tin-plated copper stabs that ensure dependable, long-lasting, and corrosio...

View full details
Circuit Breaker 30 Amp 2 in. Double-Pole Circuit Q-Line 1
SKU 599638

Circuit Breaker 30 Amp 2 in. Double-Pole Circuit Q-Line

$14.99 - $14.99
$14.99
$14.99 - $14.99
$14.99
In stock

Delivery

Today within 4 hours or scheduled 2-hour window

About This Product The 30 Amp 2 in. Double-Pole Circuit Breaker features a dedicated calibration screw that is secured to avoid any movement. This ...

View full details
Circuit Breaker 30 Amp 1 in. Double-Pole Circuit Q-Line 1
SKU 614635

Circuit Breaker 30 Amp 1 in. Double-Pole Circuit Q-Line

$16.98 - $16.98
$16.98
$16.98 - $16.98
$16.98
In stock

Delivery

Today within 4 hours or scheduled 2-hour window

About This Product The 30 Amp 1 in. Double-Pole Circuit Breaker includes tin-plated copper stabs for dependable, lasting, and corrosion-resistant c...

View full details
Circuit Breaker 20 Amp 2 in. Double-Pole Circuit Q-Line 1
SKU 515988

Circuit Breaker 20 Amp 2 in. Double-Pole Circuit Q-Line

$14.99 - $14.99
$14.99
$14.99 - $14.99
$14.99
In stock

Delivery

Today within 4 hours or scheduled 2-hour window

About This Product The 20 Amp 2 in. Double-Pole Circuit Breaker features a casing constructed from heat-resistant thermoset, ensuring stability and...

View full details
Circuit Breaker 20 Amp in. 1-Pole Circuit Q-Line 1/2 1
SKU 816520

Circuit Breaker 20 Amp in. 1-Pole Circuit Q-Line 1/2

$7.80 - $7.80
$7.80
$7.80 - $7.80
$7.80
In stock

Delivery

Today within 4 hours or scheduled 2-hour window

About This Product The 20 Amp 1/2 in. Single-Pole Circuit Breaker features a case constructed from heat-resistant thermoset material for durability...

View full details
Circuit Breaker 20 Amp 1-Pole Q-Line Dual Function Arc Fault/GFCI 1
SKU 566646

Circuit Breaker 20 Amp 1-Pole Q-Line Dual Function Arc Fault/GFCI

$68.97 - $68.97
$68.97
$68.97 - $68.97
$68.97
In stock

Delivery

Today within 4 hours or scheduled 2-hour window

About This Product The 2014 NEC requires Ground Fault and Arc Fault circuit protection on numerous 15 Amp and 20 Amp kitchen and laundry circuits. ...

View full details
Circuit Breaker 20 Amp 1 in. Single-Pole Circuit Q-Line 1
SKU 296845

Circuit Breaker 20 Amp 1 in. Single-Pole Circuit Q-Line

$7.80 - $7.80
$7.80
$7.80 - $7.80
$7.80
In stock

Delivery

Today within 4 hours or scheduled 2-hour window

About This Product The 20 Amp 1 in. Single-Pole Circuit Breaker features a tin-plated copper stab, ensuring a dependable, long-lasting, and corrosi...

View full details
Circuit Breaker 20 Amp 1 in. Pole Circuit Q-Line Single Arc Fault Combination 1
SKU 021695

Circuit Breaker 20 Amp 1 in. Pole Circuit Q-Line Single Arc Fault Combination

$62.97 - $62.97
$62.97
$62.97 - $62.97
$62.97
In stock

Delivery

Today within 4 hours or scheduled 2-hour window

About This Product The 20 Amp 1 in. Single-Pole Arc Fault Combination Circuit Breaker identifies arc faults in both parallel and series circuits. T...

View full details
Circuit Breaker 20 Amp 1 in. Double-Pole Circuit Q-Line 1
SKU 801486

Circuit Breaker 20 Amp 1 in. Double-Pole Circuit Q-Line

$16.98 - $16.98
$16.98
$16.98 - $16.98
$16.98
In stock

Delivery

Today within 4 hours or scheduled 2-hour window

About This Product The 20 Amp 1 in. Double-Pole Circuit Breaker features tin-plated copper stabs for dependable, lasting, and corrosion-resistant c...

View full details
Circuit Breaker 15 Amp Single-Pole Q-Line Dual Function Arc Fault/GFCI 1
SKU 705983

Circuit Breaker 15 Amp Single-Pole Q-Line Dual Function Arc Fault/GFCI

$68.97 - $68.97
$68.97
$68.97 - $68.97
$68.97
In stock

Delivery

Today within 4 hours or scheduled 2-hour window

About This Product The 2014 National Electrical Code (NEC) has required Ground Fault and Arc Fault circuit protection for numerous 15 Amp and 20 Am...

View full details
Circuit Breaker 15 Amp Single-Pole Circuit Q-Line Arc Fault Combination 1
SKU 700447

Circuit Breaker 15 Amp Single-Pole Circuit Q-Line Arc Fault Combination

$62.97 - $62.97
$62.97
$62.97 - $62.97
$62.97
In stock

Delivery

Today within 4 hours or scheduled 2-hour window

About This Product The 15 Amp 1 in. Frame Single-Pole Arc Fault Combination Circuit Breaker identifies arc faults in both parallel and series wirin...

View full details
Circuit Breaker 15 Amp in. Single-Pole Circuit Q-Line 1/2 1
SKU 547292

Circuit Breaker 15 Amp in. Single-Pole Circuit Q-Line 1/2

$7.80 - $7.80
$7.80
$7.80 - $7.80
$7.80
In stock

Delivery

Today within 4 hours or scheduled 2-hour window

About This Product The 15 Amp 1/2 in. Single-Pole Circuit Breaker features a tin-plated copper stab, ensuring a dependable, lasting, and corrosion-...

View full details
Circuit Breaker 15 Amp 1 Single-Pole Circuit Q-Line 1
SKU 911634

Circuit Breaker 15 Amp 1 Single-Pole Circuit Q-Line

$7.80 - $7.80
$7.80
$7.80 - $7.80
$7.80
In stock

Delivery

Today within 4 hours or scheduled 2-hour window

About This Product The 15 Amp 1 in. Single-Pole Circuit Breaker includes a dedicated calibration screw that is fixed in place to avoid movement. Th...

View full details
Circuit Breaker 125 Amp 2 in. Pole Circuit Q-Line Double 1
SKU 740230

Circuit Breaker 125 Amp 2 in. Pole Circuit Q-Line Double

$106.20 - $106.20
$106.20
$106.20 - $106.20
$106.20
In stock

Delivery

Today within 4 hours or scheduled 2-hour window

About This Product The 125 Amp 2 in. Double-Pole Circuit Breaker features a dedicated calibration screw that is cemented to avoid shifting. This sc...

View full details
Circuit Breaker 100 Amp 2 in. Double-Pole Circuit Q-Line 1
SKU 612475

Circuit Breaker 100 Amp 2 in. Double-Pole Circuit Q-Line

$87.37 - $87.37
$87.37
$87.37 - $87.37
$87.37
In stock

Delivery

Today within 4 hours or scheduled 2-hour window

About This Product The 100 Amp 2 in. Double-Pole Circuit Breaker features a box-type terminal and is designed to work with load centers. This break...

View full details
Circuit Breaker 125 Amp 8-Space 16-Circuit Circuit PowerMark Plus Outdoor Main Lug/ Main Lug Kit Panel 1
SKU 225784

Circuit Breaker 125 Amp 8-Space 16-Circuit Circuit PowerMark Plus Outdoor Main Lug/ Main Lug Kit Panel

$71.24 - $71.24
$71.24
$71.24 - $71.24
$71.24
In stock

Delivery

Today within 4 hours or scheduled 2-hour window

About This Product The load center features a robust tin-plated copper bus bar and a galvanized enclosure for enhanced durability and reliability. ...

View full details
Circuit Breaker 125 Amp 8-Space 16-Circuit Circuit PowerMark Plus Indoor Main Lug Panel 1
SKU 162572

Circuit Breaker 125 Amp 8-Space 16-Circuit Circuit PowerMark Plus Indoor Main Lug Panel

$53.00 - $53.00
$53.00
$53.00 - $53.00
$53.00
In stock

Delivery

Today within 4 hours or scheduled 2-hour window

About This Product The load center features a robust tin-plated copper bus bar and a galvanized enclosure for enhanced durability and dependability...

View full details
Circuit Breaker 125 Amp 24-Space 24-Circuit Circuit PowerMark Gold Indoor Main Lug/ Main Lug Kit Value Kit Includes Select 1
SKU 676231

Circuit Breaker 125 Amp 24-Space 24-Circuit Circuit PowerMark Gold Indoor Main Lug/ Main Lug Kit Value Kit Includes Select

$94.50 - $94.50
$94.50
$94.50 - $94.50
$94.50
In stock

Delivery

Today within 4 hours or scheduled 2-hour window

About This Product This value kit contains four 20 Amp Single-Pole Circuit Breakers. The load center features a robust tin-plated copper bus bar an...

View full details
Circuit Breaker 100 Amp 2-Pole Circuit New UBIZ Thick 120/240 Volts 1-1/2 in Zinsco QCAL100 Replacement 1
SKU 757408

Circuit Breaker 100 Amp 2-Pole Circuit New UBIZ Thick 120/240 Volts 1-1/2 in Zinsco QCAL100 Replacement

$149.00 - $149.00
$149.00
$149.00 - $149.00
$149.00
In stock

Delivery

Today within 4 hours or scheduled 2-hour window

About This Product Circuit breaker, Type UBIZ. Compatible with load centers that accommodate type QC circuit breakers. ETL Certified. 10,000 AIC, 2...

View full details
Load Center 70 Amp 2-Space 4-Circuit Homeline Outdoor Main Lug Center(HOM24L70RBCP) 1
SKU 293773

Load Center 70 Amp 2-Space 4-Circuit Homeline Outdoor Main Lug Center(HOM24L70RBCP)

$38.80 - $38.80
$38.80
$38.80 - $38.80
$38.80
Buy More Pay Less
In stock

Delivery

Today within 4 hours or scheduled 2-hour window

About This Product The 70 Amp 2-Space 4-Circuit Outdoor Main Lugs Load Center is UL certified for both residential and commercial power distributio...

View full details
Circuit Breaker 70 Amp 2-Pole Circuit Homeline 1
SKU 215630

Circuit Breaker 70 Amp 2-Pole Circuit Homeline

$54.58 - $54.58
$54.58
$54.58 - $54.58
$54.58
In stock

Delivery

Today within 4 hours or scheduled 2-hour window

About This Product The 70 Amp Double-Pole Circuit Breaker provides protection against overloads and short circuits in your electrical system. This ...

View full details

Power Distribution: What You Need to Know

Power distribution equipment, also known as electrical panels or breaker assemblies, is essential for safely routing electricity through residential, commercial, and industrial systems. These systems operate across a wide ampere range from 15A to 225A, where amperes (amps) measure the amount of electrical current flowing through a circuit. Selecting the correct amp rating ensures safe and efficient power delivery tailored to the system's load requirements.

Type:

  • Breaker Box Parts: These include internal accessories and mounting hardware used to assemble or repair existing panels. They ensure smooth operation and compliance with safety standards.
  • Breaker Boxes: Serve as the central hub for distributing electrical power within a structure. They house breakers and protect circuits from overloads or short circuits.
  • Circuit Breakers: Automatically interrupt power flow during overloads or faults. These critical components protect both wiring and connected appliances from damage.
  • Disconnects: Provide a means to manually shut off power to specific areas or systems. Ideal for servicing, maintenance, or emergency cutoffs.
  • Meter Main Combos: Combine the functions of a main breaker and utility meter socket in one enclosure. Frequently used in new residential construction for space-saving efficiency.
  • RV Electrical Panels: Custom-built to handle mobile power demands, RV panels safely distribute electricity in recreational vehicles. They often include multiple outlets and surge protection.
  • Spa Panels: Specifically designed for spa and hot tub installations, these panels ensure safe, code-compliant power delivery to water-based systems.

Ampere:

  • 15A – 30A: Typically used for lighting circuits, small appliances, and individual residential outlets. These lower amperages are ideal for systems with minimal load demands and basic branch circuits.
  • 40A – 70A: Supports heavier residential needs such as electric ranges, dryers, and HVAC systems. Also common in spa panels and high-demand standalone units.
  • 100A – 125A: A standard for small to mid-sized homes, this range powers entire households efficiently. It balances capacity with affordability and is often used in main service panels.
  • 200A – 225A: Designed for large residential buildings or commercial setups. These higher-capacity systems support multiple sub-panels and extensive load distribution with increased reliability.

At Supply Ontime, we offer reliable materials designed to meet your project’s needs. With same-day delivery across the Greater Los Angeles area, we make it easy to keep your projects on schedule. Order Power Distribution now and get it delivered today!