Square D 992240 Molded Case Circuit Breaker
- 40A
- 2 Pole
- Bolt-On
Quantity
Square D 992240 - 40A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
The 992240 is a two-pole, 40-amp molded case circuit breaker from Square D's legacy 99 Series. Built for industrial motor control applications, it provides essential overcurrent protection for demanding electrical systems. Designed with a bolt-on mounting style, this breaker installs into compatible Square D Motor Control Centers. It serves as an exact replacement component for maintaining older infrastructure. Rated for 10 kAIC at 240VAC, it features fixed thermal and magnetic trip elements.Specifications
| Brand | Square D |
|---|---|
| Part Number | 992240-R |
| Series | 992 |
| Amperage | 40A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 240VAC |
| Frame Type | 992 |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D Motor Control Centers |
| Wire Gauge | #8-4 AWG |
| Max Wire | 4 AWG |
| Min Wire | 8 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Accessories | Load Side Lugs Included |
|---|---|
| Standards | UL 489 |
| Approval | UL |
| Temp Rating | 40C |
| Construction Features | Common Trip |
Product FAQs
6 answersWhat equipment is the Square D 992240 circuit breaker designed to fit?
This legacy 99 Series bolt-on breaker is specifically designed for installation in compatible Square D Motor Control Centers.
How does the 992240 connect to the motor control center bus?
It utilizes a bolt-on connection to secure directly to the buswork of compatible Square D Motor Control Centers, providing a rigid and reliable electrical connection for industrial applications.
What size wire can be used with the lugs on the 992240 breaker?
The included load-side lugs accept wire sizes from 8 AWG to 4 AWG. Ensure proper torque specifications are followed during installation in the motor control center.
What type of trip unit does the 992240 feature?
It is equipped with a thermal-magnetic trip unit that provides fixed long-time and instantaneous (LI) overcurrent protection. The thermal and magnetic trip points are not adjustable.
What is the maximum frame size for the 992240 breaker?
The 992240 is built on a 100A maximum frame size, though this specific unit is factory-calibrated with a 40A continuous current rating.
Is the Square D 992240 still in active production?
The 992240 is part of the legacy 99 Series and is considered an obsolete frame by Schneider Electric. However, exact replacement components are still available for maintaining older motor control center infrastructure without requiring a full system retrofit.
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