Square D 992340 Molded Case Circuit Breaker
- 40A
- 3 Pole
- Bolt-On
Quantity
Square D 992340 - 40A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
A dependable solution for industrial facilities, the Square D 992340 is a 40-amp, 3-pole molded case circuit breaker from the legacy 992 series. It provides essential overcurrent and short-circuit protection for heavy-duty electrical loads. This bolt-on breaker is specifically configured to mount into Square D Motor Control Centers, supporting legacy infrastructure maintenance. It delivers a 10kAIC interrupt rating at 240VAC and utilizes fixed thermal-magnetic (LI) trip technology.Specifications
| Brand | Square D |
|---|---|
| Part Number | 992340-R |
| Series | 992 |
| Amperage | 40A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| 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
7 answersCan the Square D 992340 be installed in standard lighting panelboards?
No, the 992340 is a specialized bolt-on circuit breaker designed exclusively for legacy Square D Motor Control Centers. It is not compatible with standard residential or commercial panelboards.
Is the 992340 known by any other model names?
Yes, this legacy 992 series breaker is frequently identified in the field as an ML model circuit breaker.
Are load side lugs included with the 992340 breaker?
Yes, the breaker comes equipped with load side lugs that accept wire sizes from 8 AWG to 4 AWG.
Can the trip settings on the 992340 be adjusted for specific motor loads?
No, the thermal magnetic trip unit is fixed. Both the long-time and instantaneous (LI) trip functions are factory set and cannot be adjusted in the field.
What is the ambient temperature rating for the 992340 breaker?
This breaker is calibrated for operation in a 40 degrees Celsius ambient temperature environment.
Does the 992340 feature a common trip mechanism?
Yes, it is built with a common trip feature, ensuring that an overcurrent on any single phase will simultaneously open all three poles to protect the connected equipment.
What safety standards does the Square D 992340 meet?
This breaker carries UL approval and complies with UL 489 standards for molded case circuit breakers.
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