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ABB / General Electric TLB234150 Molded Case Circuit Breaker
- 150A
- 3 Pole
- Bolt-On
ABB / General Electric
TLB234150
Molded Case Circuit Breaker
Brand
ABB / General Electric
SKU
TLB234150
Quantity
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ABB / General Electric TLB234150 - 150A 3 Pole Molded Case Circuit Breaker
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Description
Part of the GE Tri-Break series, the TLB234150 is a 3-pole, 150A bolt-on molded case circuit breaker. Built for demanding commercial and industrial applications, it installs into compatible GE panelboards, switchboards, and motor control centers. This TB frame breaker features a fixed thermal magnetic trip unit and is HACR rated for HVAC applications. Delivering a 50kAIC interrupting capacity at 480VAC, it provides integrally fused, current-limiting protection (replaced by Tmax XT4).Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | TLB234150 |
| Series | TLB |
| Amperage | 150A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 50kA @ 480VAC |
| Frame Type | TLB2 |
|---|---|
| Terminal Type | Lugs |
| For Use With | GE Switchboards, Motor Control Centers, Panelboards |
| Wire Gauge | 4 AWG - 300 kcmil |
| Max Wire | 300 kcmil |
| Min Wire | 4 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, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Lugs |
| Standards | UL 489, NEMA AB 1 |
| Approval | UL |
| Temp Rating | 40C |
| Construction Features | Integrally Fused, Current Limiting, HACR Rated, Non-Interchangeable Trip, Trip-Free Mechanism, Quick-Make/Quick-Break |
Product FAQs
8 answersWhat enclosures are compatible with the GE TLB234150 circuit breaker?
This TLB2 frame breaker is designed for installation in compatible General Electric switchboards, motor control centers, and panelboards.
Can the TLB234150 be used in HVAC applications?
Yes, this breaker is HACR rated, making it suitable for protecting heating, air conditioning, and refrigeration equipment.
Does the TLB234150 support 480V systems with high fault currents?
Yes, it is rated for up to 50kAIC at 480VAC, making it suitable for industrial systems with substantial available fault current. It also supports up to 65kAIC on 240VAC systems.
Are the trip settings on the TLB234150 adjustable?
No, this breaker features a fixed thermal-magnetic trip unit. Both the Long-Time and Instantaneous (LI) trip functions are factory set and cannot be adjusted in the field.
Does the TLB234150 plug into the panel bus?
No, this is a bolt-on breaker. It must be mechanically bolted to the busbars in compatible GE enclosures, ensuring a secure connection for high-amperage industrial applications.
What type of conductors can be terminated on the TLB234150?
The factory-installed feed-thru lugs accept conductors ranging from 4 AWG to 300 kcmil. Ensure you use properly rated copper or aluminum wire as specified by the equipment enclosure.
What is the modern ABB equivalent for the GE TLB234150?
Following ABB acquiring GE Industrial Solutions, the Tmax XT4 series is the recommended modern replacement for this 150A Tri-Break breaker.
Does the TLB234150 offer current-limiting capabilities?
Yes, as part of the Tri-Break family, it provides integrally fused, current-limiting protection to reduce fault energy and protect downstream circuits during a short circuit.
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