ABB / General ElectricTHEF126100
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ABB / General Electric THEF126040 Molded Case Circuit Breaker
- 40A
- 2 Pole
- Bolt-On
ABB / General Electric
THEF126040
Molded Case Circuit Breaker
Brand
ABB / General Electric
SKU
THEF126040
Quantity
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ABB / General Electric THEF126040 - 40A 2 Pole Molded Case Circuit Breaker
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Description
Built for commercial applications, the GE THEF126040 is a 2-pole, 40A molded case circuit breaker that delivers robust thermal-magnetic protection. It is engineered to handle demanding electrical loads in industrial environments. This bolt-on MCCB mounts into GE A-Series panelboards, switchboards, and motor control centers. For modernizations, it crosses over to the THED126040 replacement breaker. It features a 65kAIC rating at 240V, HACR certification, and a quick-make/quick-break mechanism.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | THEF126040-R |
| Series | THEF |
| Amperage | 40A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 65kA @ 240VAC, 25kA @ 480VAC, 18kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | THEF |
|---|---|
| Terminal Type | Lugs |
| For Use With | GE A-Series Panelboards, GE Switchboards, Motor Control Centers |
| Wire Gauge | 14-3 AWG (Cu), 12-1 AWG (Al) |
| Max Wire | 3 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, Alarm Switch, Padlock Attachment, Lug Kits |
|---|---|
| Accessories | Line and Load Lugs |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Non-Interchangeable Trip, Quick-Make/Quick-Break, Trip-Free Mechanism, Common Trip, Reverse Feed |
Product FAQs
6 answersWhich panelboards and enclosures are compatible with the THEF126040?
This bolt-on circuit breaker is designed for installation in GE A-Series panelboards, GE switchboards, and motor control centers.
What is the direct replacement for the legacy THEF126040 circuit breaker?
The THEF series is a legacy E-Frame breaker. For modernizations or replacements, it crosses over to the THED126040 molded case circuit breaker.
What wire sizes and materials are accepted by the lugs on this breaker?
The terminal lugs accept 14 to 3 AWG copper wire or 12 to 1 AWG aluminum wire.
Can the THEF126040 be used in DC electrical systems?
Yes, this breaker is rated for DC applications with an interrupting capacity of 10kAIC at 250VDC.
Are the trip settings on the THEF126040 adjustable?
No, this breaker features fixed thermal and fixed magnetic trip settings for its long-time and instantaneous protection functions.
Is the THEF126040 HACR rated for HVAC applications?
Yes, this E-Frame circuit breaker is HACR certified for use with heating, air conditioning, and refrigeration equipment.
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