Square D 992320 Molded Case Circuit Breaker
- 20A
- 3 Pole
- Bolt-On
Quantity
Square D 992320 - 20A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
A drop-in solution for older facilities, the Square D 992320 is a 20A, 3-pole molded case circuit breaker. It provides essential long-time and instantaneous trip functions for commercial and industrial power distribution networks. Designed specifically for legacy infrastructure, this breaker installs into Square D ML panelboards via a secure bolt-on mount. It also serves as a substitute for ML22020 SKUs. The device carries a 10kAIC rating at 240VAC with fixed thermal-magnetic protection.Specifications
| Brand | Square D |
|---|---|
| Part Number | 992320-R |
| Series | 99 Series |
| Amperage | 20A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D ML Panelboards |
| Wire Gauge | 14-10 AWG (Cu), 12-10 AWG (Al) |
| Max Wire | 10 AWG |
| Min Wire | 14 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, NEMA AB-1 |
| Approval | UL, CSA |
| Temp Rating | 40°C |
Product FAQs
5 answersWhich panelboards accept the Square D 992320 circuit breaker?
This legacy 99 Series breaker is specifically designed to bolt into vintage Square D ML panelboards. It is used to maintain existing infrastructure rather than for new installations.
What wire sizes and materials are supported by the load lugs on this breaker?
The built-in terminal lugs accept 14 to 10 AWG copper (Cu) wire, as well as 12 to 10 AWG aluminum (Al) wire.
What does the LI trip function code mean on the 992320?
The LI designation indicates that this thermal magnetic breaker provides fixed Long-Time (thermal) overload protection and fixed Instantaneous (magnetic) short-circuit protection.
Is the Square D 992320 part of a current product line?
No, the 99 Frames group is classified under Square D's legacy types. These molded case circuit breakers are primarily sourced as direct replacements for older commercial and industrial ML panelboards.
Does this breaker feature adjustable trip settings?
No, the thermal and magnetic trip elements on the 992320 are completely fixed. They cannot be adjusted in the field.
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