ABB / General ElectricTHLC434400
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ABB / General Electric THLC436350 Molded Case Circuit Breaker
- 350A
- 3 Pole
- Bolt-On
ABB / General Electric
THLC436350
Molded Case Circuit Breaker
Brand
ABB / General Electric
SKU
THLC436350
Quantity
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ABB / General Electric THLC436350 - 350A 3 Pole Molded Case Circuit Breaker
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Description
Engineered for heavy industrial applications, the GE THLC436350 is a 3-pole, 350A current-limiting molded case circuit breaker. It provides robust thermal-magnetic protection for demanding electrical systems. This bolt-on MCCB installs into GE switchboards and motor control centers. It accepts 3/0 AWG to 500 kcmil copper or aluminum wire via standard lug terminals. Rated for 200kAIC at 480VAC, this Q-Line breaker restricts let-through energy to protect downstream equipment from severe faults.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | THLC436350 |
| Series | THLC |
| Amperage | 350A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 200kA @ 240VAC, 200kA @ 480VAC, 50kA @ 600VAC |
| Frame Type | THLC |
|---|---|
| Terminal Type | Lugs |
| For Use With | GE Switchboards, Motor Control Centers |
| Wire Gauge | 3/0 AWG - 500 kcmil (Cu/Al) |
| Max Wire | 500 kcmil |
| Min Wire | 3/0 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Lug Kits, Alarm Switch |
|---|---|
| Accessories | Load Lugs |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Current Limiting, High Interrupting Capacity, HACR Rated, Non-Interchangeable Trip, Common Trip, Trip-Free Mechanism |
| Special Features | Current Limiting |
Product FAQs
6 answersWhat equipment is the THLC436350 designed to be installed in?
This bolt-on molded case circuit breaker is designed for integration into General Electric switchboards and motor control centers. It is part of the THLC4 frame family, which supports heavy-duty commercial and industrial power distribution.
What frame size does the THLC436350 belong to?
It is part of the GE THLC4 frame size, which encompasses current-limiting circuit breakers ranging from 250A to 400A. This specific model is calibrated for a maximum continuous current of 350A.
What does the current-limiting designation mean for the THLC436350?
As a current-limiting breaker, it is engineered to quickly extinguish arcs and restrict let-through energy during a severe fault. This provides enhanced protection for downstream electrical components and allows the breaker to safely interrupt up to 200kA at 480VAC.
What size wire is compatible with the standard lugs on this 350A breaker?
The standard lug terminals accept copper or aluminum (Cu/Al) conductors ranging from 3/0 AWG to 500 kcmil. When replacing lugs, the TCLK43 lug kit is typically used for the THLC4 frame.
Can the trip unit on the THLC436350 be adjusted in the field?
No, this breaker features a non-interchangeable thermal-magnetic trip unit with fixed long-time and instantaneous (LI) trip functions. It does not offer field-adjustable trip settings.
Why might this breaker arrive with either ABB or General Electric branding?
ABB acquired GE Industrial Solutions in 2018. Depending on the manufacturing date, this THLC4 frame breaker may feature either ABB or GE branding. The physical dimensions, mounting hardware, and technical specifications remain identical regardless of the label.
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