1-800-328-1842
Browse EMSCO's online catalog Browse Store
Busway & Plugs
Bus Plugs Bus Duct Tap Boxes & Accessories
Circuit Breakers
Molded & Insulated Case Circuit Breakers Air Circuit Breakers Vacuum Circuit Breakers Motor Circuit Protectors
Switches
Panelboard Switches Pressure Contact Switches Safety Switches Transfer Switches
Motor Control
MCC Buckets & Structure Starters Variable-Frequency Drive (VFD)
Switchgear
Low Voltage Switchgear Medium Voltage Switchgear
Transformers
Low Voltage Transformers Medium Voltage Transformers Auto-Transformers

Molded & Insulated Case Circuit Breakers

Home > Store > Circuit Breakers > Molded & Insulated Case Circuit Breakers

Manufacturer
Amperage
Condition
Family
Fixed Mount or Draw Out
Frame
Functions
Ground Fault
Indoor/Outdoor
Main Type
Operation
Phase
Poles
Series
Shunt Trip
Style
Voltage
Wire
While our website showcases a large assortment of our products, it does not reflect the complete inventory of products currently available. For real-time availability and to ensure we can meet your specific needs, please contact our sales team at 1-800-328-1842. New products arrive daily and our knowledgeable staff are happy to assist you in locating the exact item(s) you need.
Picture of TC2020TTHE1R GE Power Break Circuit Breaker 2000 Amp 600 VAC W/Auxiliaries W/Shunt E/O D/O

TC2020TTHE1R GE Power Break Circuit Breaker 2000 Amp 600 VAC W/Auxiliaries W/Shunt E/O D/O

General Electric TC2020TTHE1R Power Break circuit breaker; 2000 amp, 600 volt AC with 2000 amp plug with Micro Versa Trip PM cat# C220LSHMR, with auxiliaries and shunt control voltage- 120 volt AC, electrically operated (E/O), draw-out (D/O), used tested with report.
SKU: MCCB1007
$10,500.00
View product Add to cart
Picture of TC2020TTHR GE Power Break 2000 Amp 600 VAC W/2000 Amp Plug M/O D/O

TC2020TTHR GE Power Break 2000 Amp 600 VAC W/2000 Amp Plug M/O D/O

General Electric TC2020TTHR Power Break Circuit Breaker; 2000 amp, 600 volt AC, 3 pole. With 2000 amp plug, auxiliaries, rating plug type TR20B, rating plug, cat# TR20B2000, Micro Versa Trip-PM cat.#C220LSHMR, manually operated (M/O), draw-out (D/O), used tested with report.
SKU: MCCB1005
$5,100.00
View product Add to cart
Picture of TC2020TTHR GE Power Break 2000 Amp 600 VAC W/Aux M/O D/O

TC2020TTHR GE Power Break 2000 Amp 600 VAC W/Aux M/O D/O

General Electric TC2020TTHR Power Break Circuit Breaker; 2000 amp, 600 volt AC, 3 pole. With 2000 amp rating plug cat.# TR20B2000, Micro Versa Trip PM cat.# C220LSHMR, auxiliaries, manually operated (M/O), draw-out (D/O), used tested with report.
SKU: MCCB1021
$5,100.00
View product Add to cart
Picture of TC2020TTHR GE Power Break 2000 Amp 600 VAC W/Aux M/O D/O

TC2020TTHR GE Power Break 2000 Amp 600 VAC W/Aux M/O D/O

General Electric TC2020TTHR Power Break Circuit Breaker; 2000 amp, 600 volt AC, 3 pole. With 2000 amp rating plug cat.# TR20B2000, Micro Versa Trip PM cat.# C220LSHMR, auxiliaries, manually operated (M/O), draw-out (D/O), used tested with report.
SKU: MCCB1023
$5,100.00
View product Add to cart
Picture of TC2020TTHR GE Power Break Breaker 2000 Amp 600 VAC M/O D/O

TC2020TTHR GE Power Break Breaker 2000 Amp 600 VAC M/O D/O

General Electric TC2020TTHR Power Break Circuit Breaker; 2000 amp, 600 volt AC, 3 pole. With 2000 amp plug, manually operated (M/O), draw-out (D/O), with auxiliaries, rating plug type TR20B, rating plug cat# TR20B2000, Micro Versa Trip-PM cat.#C220LSHMR, used tested with report.
SKU: MCCB1006
$5,100.00
View product Add to cart
Picture of TC2020TTHR GE Power Break Breaker 2000 Amp 600 VAC W/Aux M/O D/O

TC2020TTHR GE Power Break Breaker 2000 Amp 600 VAC W/Aux M/O D/O

General Electric TC2020TTHR Power Break; 2000 amp, 600 volt AC, 3 pole. With 2000 amp rating plug. cat.#TR20B2000, Micro Versa Trip cat.#C220LSHMR, auxiliaries, manually operated (M/O), draw-out (D/O), used tested with report.
SKU: MCCB1017
$5,100.00
View product Add to cart
Picture of TC2020TTHR GE Power Break Breaker 2000 Amp 600 VAC W/Aux M/O D/O

TC2020TTHR GE Power Break Breaker 2000 Amp 600 VAC W/Aux M/O D/O

General Electric TC2020TTHR Power Break Circuit Breaker; 2000 amp, 600 volt AC, 3 pole. With 2000 amp rating plug cat.# TR20B2000, Micro Versa Trip PM cat.# C220LSHMR, auxiliaries, M/O D/O, used tested with report.
SKU: MCCB1022
$5,100.00
View product Add to cart
Picture of TC3030SSZ GE Power Break Breaker 3000 Amp 600 VAC M/O D/O

TC3030SSZ GE Power Break Breaker 3000 Amp 600 VAC M/O D/O

General Electric TC3030SSZ Power Break; 3000 amp, 600 volt AC, 3 pole. With Micro Versa Trip, cat.#TS32LSIGT2Z1, LSIG functions, ground fault, manually operated (M/O), draw-out (D/O), used tested with report (missing trip cover).
SKU: MCCB1127
$9,000.00
View product Add to cart
Picture of TC4040SSH GE Power Break Circuit Breaker 4000 Amp 600 VAC M/O D/O

TC4040SSH GE Power Break Circuit Breaker 4000 Amp 600 VAC M/O D/O

General Electric TC4040SSH Power Break circuit breaker; Micro Versa Trip RMS-9 with LSIG functions, ground fault, 4000 amp rating plug cat.# TR40S4000, 4000 amp shunt trip, auxiliary switch, 600 VAC, manually operated (M/O), draw-out (D/O), used tested with report.
SKU: MCCB1473
$15,000.00
View product Add to cart
Picture of TC4040TTE1CR GE Power Break Breaker 4000 Amp 600 VAC E/O D/O

TC4040TTE1CR GE Power Break Breaker 4000 Amp 600 VAC E/O D/O

General Electric TC4040TTE1CR Power Break; 4000 amp, 600 volt AC, 3 pole. Micro Versa Trip, cat.#TT40LSI, LSI functions, 4000 amp rating plug. Cat.# TR40B (2) auxiliary switches, bell alarm, shunt trip- 24 volt DC, electrically operated (E/O), 120 volt control voltage, draw-out (D/O), used tested with report.
SKU: MCCB1635
$9,000.00
View product Add to cart
Picture of TC4040TTE1CR GE Power Break Circuit Breaker 4000 Amp 600 VAC E/O D/O

TC4040TTE1CR GE Power Break Circuit Breaker 4000 Amp 600 VAC E/O D/O

General Electric TC4040TTE1CR Power Break circuit breaker; 4000 amp, 600 volt AC, 3 pole. With micro versa trip PM cat.#C440LSIM, 3000 amp rating plug. cat.# TR40B3000, shunt trip 120 to 240 volt AC, 50/60 HZ, auxiliary switches, bell alarm switch, control voltage 120 volt AC, electrically operated (E/O), draw-out (D/O), used tested with report.
SKU: MCCB1466
$15,000.00
View product Add to cart
Picture of TC4040TTE1CR GE Power Break Circuit Breaker 4000 Amp 600 VAC E/O D/O

TC4040TTE1CR GE Power Break Circuit Breaker 4000 Amp 600 VAC E/O D/O

General Electric TC4040TTE1CR Power Break circuit breaker; 4000 amp, 600 volt AC, 3 pole. With Micro Versa Trip cat.# C440LSIHGMR, 4000 amp rating plug. cat.# TR40B4000, shunt trip 120 to 240 volt AC, 50/60 HZ, auxiliary switches, bell alarm switch, electrically operated (E/O), draw-out (D/O), used tested with report.
SKU: MCCB1468
$15,000.00
View product Add to cart
Picture of TC88TTCR GE Power Break Breaker 800 Amp 600 VAC M/O D/O

TC88TTCR GE Power Break Breaker 800 Amp 600 VAC M/O D/O

General Electric TC88TTCR Power Break breaker; 800 amp, 600 volt AC, 3 pole. With Micro Versa Trip Plus trip unit cat.# TT20LI, lI functions, 600 amp rating plug. cat.# TR8B600, shunt trip- 120 to 240 volt AC, 4.5 amps, (2) auxiliary switches- 6A @ 240 VAC, 5A @ 125 VDC, 25A @ 250 VDC, remote close. 120 VAC, 3.3 amps, 600 VAC, manually operated (M/O), draw out (D/O), used tested with report.
SKU: MCCB1746
$3,000.00
View product Add to cart
Picture of TC88TTHE1R GE Power Break Breaker 800 Amp 600 VAC W/Aux.'s E/O W/Shunt

TC88TTHE1R GE Power Break Breaker 800 Amp 600 VAC W/Aux.'s E/O W/Shunt

General Electric TC88TTHE1R Power Break Circuit Breaker; 800 amp, 600 volt AC, 3 pole. With 800 amp rating plug cat.# TR8B800, Micro Versa Trip cat.# C208LSHMR, auxiliary switch, shunt trip- 48 volt D.C., electrically operated (E/O), control voltage- 120 volt AC, draw-out (D/O), used tested with report.
SKU: MCCB1019
$3,300.00
View product Add to cart
Picture of TCL88SS GE Power Break Breaker 800 Amp 600 VAC M/O D/O

TCL88SS GE Power Break Breaker 800 Amp 600 VAC M/O D/O

General Electric TCL88SS Power Break Circuit Breaker; 800 amp, 600 volt AC, 3 pole. With 600 amp rating plug cat.# TR8S600, Micro Versa Trip RMS-9 cat.#TS20LSIT1, LSI functions, auxiliary switch, shunt trip- 120 to 240 volt AC, draw-out (D/O) carriage substructure cat.# TDOSO8L, manually operated (M/O). Used tested with report.
SKU: MCCB1099
$2,400.00
View product Add to cart
Picture of TCL88SS GE Power Break Breaker 800 Amp 600 VAC M/O D/O

TCL88SS GE Power Break Breaker 800 Amp 600 VAC M/O D/O

General Electric TCL88SS Power Break Circuit Breaker; 800 amp, 600 volt AC, 3 pole. With 600 amp rating plug cat.# TR8S600, Micro Versa Trip RMS-9 cat.#TS20LSIT1, LSI functions, auxiliary switch, shunt trip- 120 to 240 volt AC, draw-out (D/O) carriage substructure cat.# TDOSO8L, manually operated (M/O), used tested with report.
SKU: MCCB1100
$2,400.00
View product Add to cart
Picture of TCL88SS GE Power Break Breaker 800 Amp 600 VAC M/O D/O Carriage

TCL88SS GE Power Break Breaker 800 Amp 600 VAC M/O D/O Carriage

General Electric TCL88SS Power Break Circuit Breaker; 800 amp, 600 volt AC, 3 pole. With 600 amp rating plug cat.#TR8S600, Micro Versa Trip cat.# TS20LSIT1, LSI functions, shunt trip- 120 to 240 volt AC, auxiliary switch, draw-out (D/O) carriage substructure cat.# TDOSO8L, manually operated (M/O), used tested with report.
SKU: MCCB1101
$2,400.00
View product Add to cart
Picture of TCVVF6612 GE Power Break Breaker 1200 Amp 600 VAC

TCVVF6612 GE Power Break Breaker 1200 Amp 600 VAC

General Electric TCVVF6612 Power Break Circuit Breaker; 1200 amp, 600 volt AC, 3 pole. With Micro Versa Trip cat.# TP9VT20DLGA3, lSG functions, ground fault, used tested with report.
SKU: MCCB1027
$3,000.00
View product Add to cart
Picture of TCYY9640E1C GE Power Break Molded Case Switch 4000 Amp 600 Volt E/O

TCYY9640E1C GE Power Break Molded Case Switch 4000 Amp 600 Volt E/O

General Electric TCYY9640E1C GE Power Break, molded case switch; 4000 amp, 600 Volt AC with auxiliaries, control voltage 120 volt AC, electrically operated (E/O) with shunt trip 120 to 240 volt AC, used tested with report.
SKU: MCCB1025
$7,200.00
View product Add to cart
Picture of TEB111015 General Electric Circuit Breaker

TEB111015 General Electric Circuit Breaker

General Electric TEB111015 circuit breaker; 15 amp, 120 volt, single pole, used electrically OK.
SKU: TEB111015
Contact us for pricing:
View product

New, Used, and Tested Molded & Insulated Case Circuit Breakers

EMSCO has been specializing in used and refurbished molded & insulated case circuit breakers for over 72 years.


Why Choose EMSCO for Molded Case or Insulated Case Circuit Breakers?

Want to match and replace your existing breakers? End the hassle of retrofitting your electrical system. Our extensive inventory includes a variety of Molded Case Circuit Breakers (MCCBs) and Insulated Case Circuit Breakers that are designed to seamlessly match and replace your existing breakers by brand, amp rating, voltage, frame size, or model.

New and Refurbished Products in Stock

We understand that budgets and preferences differ, so we give you the option of selecting between new and refurbished MCCBs or Insulated Case Breakers, both of which are readily available in our inventory. Choose brand-new circuit breakers for maximum performance and longevity, or look into our refurbished options, which have been rigorously tested and reconditioned to meet industry standards.

Popular Brands and Common Configurations

Our shelves are stocked with breakers from the most trusted and popular brands in the industry, ensuring you have access to dependable products. You'll find common configurations, such as different frame sizes and voltage ratings, making it simple to find the right circuit protection for your application.

Avoiding Costly Operational Downtime

Downtime can be an expensive situation. Our circuit protection products are designed for high performance and durability. You can avoid costly operational downtime due to electrical failures by using our fully-tested Molded Case or Insulated Case breakers. Our products provide reliable power and superior equipment protection.

Electrical Testing Equipment Certifying Quality and Performance

When it comes to the dependability and safety of your electrical systems, we leave nothing to chance. Our breakers are rigorously tested using current testing equipment to ensure that they meet or exceed industry standards. This ensures that your electrical installations are safe and efficient.

  • Overcurrent Protection: We verify that your breakers provide accurate overcurrent protection, guaranteeing the safety of your electrical systems.
  • Trip Time: We measure the time it takes for breakers to respond to overcurrent conditions, ensuring it operates within the specified trip time.
  • Short-Circuit Withstand Capacity: Our testing evaluates the breaker’s ability to withstand short-circuit currents, preventing damage and maintaining safety.
  • Interrupting Capacity: We determine the MCCB's capability to interrupt fault currents, ensuring the utmost protection for your electrical system.

Molded Case Circuit Breaker Specifications

A sample table of ampere ratings, corresponding voltage ratings, and frame sizes for molded case circuit breakers is shown below. Please keep in mind that frame sizes and ratings can differ between manufacturers and models. For precise details on a specific MCCB, always refer to the manufacturer's specifications.

Frame Size

Ampere Rating

Voltage Rating

A

15A

120V, 240V

A

20A

120V, 240V

B

30A

120V, 240V, 480V

B50A120V, 240V, 480V
C60A240V, 480V
C100A240V, 480V
D150A240V, 480V, 600V
D200A240V, 480V, 600V
E250A240V, 480V, 600V
E300A240V, 480V, 600V
F400A240V, 480V, 600V
F600A240V, 480V, 600V
G800A240V, 480V, 600V
G1200A240V, 480V, 600V
H1600A240V, 480V, 600V

This table is a sample representation of frame sizes, ampere ratings, and voltage ratings for Molded Case Circuit Breakers, not an exhaustive list.

Molded case circuit breakers (MCCBs) and insulated case circuit breakers (ICCBs) are two distinct types of circuit protection devices used in electrical systems. Both serve the purpose of interrupting electrical currents in case of faults or overloads, but they differ in construction, application, and performance characteristics. Need Help Now? Call 800-328-1842.