Square D Q1L3100 Molded Case Circuit Breaker
- 100A
- 3 Pole
- Unit Mount
Quantity
Square D Q1L3100 - 100A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Quantity
Square D Q1L3100 - 100A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | Q1L3100-R |
| Series | Q1L |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D Q1L Enclosures, OEM Panels |
| Wire Gauge | 4-2/0 AWG (Al/Cu) |
| Max Wire | 2/0 AWG |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Padlock Attachment |
|---|---|
| Accessories | Lugs (Factory Installed) |
| Standards | UL 489, CSA C22.2 No. 5 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator |
Quantity
Square D Q1L3100 - 100A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | Q1L3100-R |
| Series | Q1L |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D Q1L Enclosures, OEM Panels |
| Wire Gauge | 4-2/0 AWG (Al/Cu) |
| Max Wire | 2/0 AWG |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Padlock Attachment |
|---|---|
| Accessories | Lugs (Factory Installed) |
| Standards | UL 489, CSA C22.2 No. 5 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator |
Description
Delivering 100A of capacity, this three-pole Square D breaker is engineered for commercial use. The Q1L series utilizes fixed thermal and magnetic elements to safeguard against faults. The unit mount design integrates into legacy Q1L enclosures and OEM equipment. For facilities requiring a modern equivalent, it is officially replaced by the QOU3100. Providing 10kAIC at 240VAC, it features lugs accepting 4-2/0 AWG wire. The integrated Visi-Trip indicator simplifies troubleshooting.Specifications
| Brand | Square D |
|---|---|
| Part Number | Q1L3100-R |
| Series | Q1L |
| Amperage | 100A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D Q1L Enclosures, OEM Panels |
| Wire Gauge | 4-2/0 AWG (Al/Cu) |
| Max Wire | 2/0 AWG |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Padlock Attachment |
|---|---|
| Accessories | Lugs (Factory Installed) |
| Standards | UL 489, CSA C22.2 No. 5 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator |
Product FAQs
6 answersWhat enclosures are compatible with the Q1L3100 breaker?
This breaker is designed for installation in legacy Square D Q1L enclosures and compatible OEM panels that accept Q-frame unit-mount breakers.
Is the Q1L3100 still manufactured by Square D?
The Q1L series is a legacy product and is no longer actively manufactured. For applications requiring a modern equivalent, the Square D QOU3100 serves as the official unit-mount replacement.
How is the Q1L3100 installed in an electrical system?
It features a unit-mount, feed-thru design. Instead of plugging onto a panelboard bus, it mounts independently and uses factory-installed lugs on both the line and load sides for wire connections.
What wire sizes and materials are supported by the terminals on this breaker?
The lugs are rated for 4 AWG to 2/0 AWG wire and accept both aluminum and copper conductors.
What type of protection does the Q1L3100 trip unit provide?
It uses a fixed thermal-magnetic trip mechanism, delivering long-time protection against overloads and instantaneous protection against short circuits.
How can I tell if the Q1L3100 has tripped?
The breaker includes an integrated Visi-Trip indicator, which provides a clear visual alert when a fault has caused the breaker to trip, making troubleshooting faster and safer.
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