ABB / General ElectricTLB134030
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ABB / General Electric TLB134040 Molded Case Circuit Breaker
- 40A
- 3 Pole
- Bolt-On
ABB / General Electric
TLB134040
Molded Case Circuit Breaker
Brand
ABB / General Electric
SKU
TLB134040
Quantity
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ABB / General Electric TLB134040 - 40A 3 Pole Molded Case Circuit Breaker
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Description
Designed for heavy-duty applications, the GE TLB134040 is a 40A, 3-pole molded case circuit breaker belonging to the Tri-Break TB Frame family. It provides reliable thermal-magnetic trip functions combined with an integrally fused, current-limiting design. This unit installs into compatible GE commercial panelboards using a standard bolt-on mount. For facilities updating their infrastructure, this breaker is replaced by the TEYL3040B.Specifications
| Brand | ABB / General Electric |
|---|---|
| Series | TLB |
| Amperage | 40A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 50kA @ 480VAC |
| Frame Type | TLB1 |
|---|---|
| Terminal Type | Lugs |
| For Use With | GE Panelboards |
| Wire Gauge | 14-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 14 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 |
|---|---|
| Accessories | Lugs (Load Side) |
| Standards | UL 489, NEMA AB 1 |
| Approval | UL, CSA |
| Temp Rating | 40C |
| Construction Features | Integrally Fused, Current Limiting, Non-Interchangeable Trip |
Product FAQs
6 answersWhich panelboards accept the TLB134040 circuit breaker?
This bolt-on breaker is engineered for GE commercial and industrial panelboards. Because panelboard compatibility depends on the specific interior, always verify that the TLB1 frame or Tri-Break series is listed on your panel's official labeling before installation.
What are the wire gauge requirements for the TLB134040 lugs?
The load side lugs accept conductor sizes ranging from 14 AWG to 1/0 AWG. They are dual-rated for both copper and aluminum wire.
How does the interrupting rating change depending on the system voltage?
The breaker provides a 50kAIC rating when installed in 480VAC systems. If applied in a 240VAC system, the interrupting capacity increases to 65kAIC.
Does the TLB134040 offer current-limiting protection?
Yes. As a member of the GE Tri-Break family, this breaker features an integrally fused design that provides current-limiting capabilities to protect downstream equipment from extreme fault currents.
Are the trip settings on the TLB134040 adjustable?
No. This breaker utilizes a fixed thermal and fixed magnetic trip unit. It provides standard LI (Long-Time and Instantaneous) protection, meaning neither the thermal overload nor the instantaneous short-circuit trip points can be adjusted in the field.
Why is the TLB134040 listed under both ABB and General Electric?
ABB acquired GE Industrial Solutions, meaning legacy GE breaker lines like the Tri-Break series are now managed by ABB. The TLB134040 maintains the exact same form factor, UL listing, and TLB1 frame specifications regardless of which logo is printed on the casing.
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