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Square D IF34020 Molded Case Circuit Breaker
- 20A
- 3 Pole
- I-Line
Square D
IF34020
Molded Case Circuit Breaker
Brand
Square D
SKU
IF34020
Quantity
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Square D IF34020 - 20A 3 Pole Molded Case Circuit Breaker
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Description
Engineered for demanding commercial and industrial environments, the Square D IF34020 provides robust thermal-magnetic protection. This 3-pole, 20A breaker is part of the high-performance I-Limiter series, designed to minimize let-through energy during fault conditions. It mounts into Square D I-Line panelboards using a secure plug-on connection. For legacy system upgrades, note that this unit is replaced by the HRA36020. Rated for 200kAIC at 480VAC, it ensures superior downstream safety.Specifications
| Brand | Square D |
|---|---|
| Part Number | IF34020-R |
| Series | IF |
| Amperage | 20A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC |
| Phase | 3 |
| AIC Rating | 200kA @ 240VAC, 200kA @ 480VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D I-Line Panelboards |
| Wire Gauge | 14-4 AWG (Cu), 12-4 AWG (Al) |
| Max Wire | 4 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 |
|---|---|
| Accessories | Lugs |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Current Limiting, HACR Rated, Common Trip |
| Special Features | Current Limiting |
Product FAQs
6 answersWhat panelboards are compatible with the IF34020 circuit breaker?
This breaker is designed exclusively for use in Square D I-Line panelboards and switchboards. It features an I-Line style plug-on connection for the line side and will not fit standard NQ or NF panels.
How does the I-Line mounting system work for this breaker?
The IF34020 utilizes a plug-on jaw connection on the line side that engages directly with the I-Line panelboard bus stack. The load side uses standard mechanical lugs for wire termination, allowing for rapid installation without the need for line-side wiring.
What is the advantage of the I-Limiter current-limiting design?
As a current-limiting breaker, the IF34020 clears high-magnitude short circuits in less than half a cycle. This rapid response restricts the peak let-through current and energy, providing superior protection for downstream components against thermal and mechanical stress.
What is the modern replacement for the legacy IF34020 breaker?
For legacy system upgrades, the IF34020 is typically replaced by the Square D PowerPact HRA36020. The HRA36020 provides the same 20A, 3-pole configuration and 200kAIC interrupting rating in a modern I-Line frame.
How does the current-limiting feature improve system safety?
By interrupting severe short circuits in a fraction of a cycle, the IF34020 significantly reduces the thermal and magnetic stress on downstream circuits, wiring, and equipment. This rapid clearing time helps lower the risk of arc flash energy and prevents catastrophic component failure.
Does the IF34020 provide ground fault or equipment protection?
No. This breaker is equipped with standard thermal-magnetic LI (Long-Time, Instantaneous) trip functions for overload and short-circuit protection. It does not include integral ground fault or equipment protection capabilities.
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