Square D FI36070 Molded Case Circuit Breaker
- 70A
- 3 Pole
- I-Line
Quantity
Square D FI36070 - 70A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Quantity
Square D FI36070 - 70A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | FI36070 |
| Series | FI |
| Amperage | 70A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 200kA @ 240VAC, 200kA @ 480Y/277VAC, 200kA @ 480VAC, 100kA @ 600Y/347VAC, 100kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | FI |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, Switchboards |
| Wire Gauge | 14-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 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, Undervoltage Release, Auxiliary Switch, Alarm Switch |
|---|---|
| Accessories | None included |
| Standards | CSA C22.2 No. 5, NEMA AB-1, UL 489, W-C-375B/GEN |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Current Limiting, HACR Rated, Visual Trip Indicator, Non-Interchangeable Trip |
| Special Features | Current Limiting |
Quantity
Square D FI36070 - 70A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | FI36070-R |
| Series | FI |
| Amperage | 70A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 200kA @ 240VAC, 200kA @ 480Y/277VAC, 200kA @ 480VAC, 100kA @ 600Y/347VAC, 100kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | FI |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, Switchboards |
| Wire Gauge | 14-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 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, Undervoltage Release, Auxiliary Switch, Alarm Switch |
|---|---|
| Accessories | None included |
| Standards | CSA C22.2 No. 5, NEMA AB-1, UL 489, W-C-375B/GEN |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Current Limiting, HACR Rated, Visual Trip Indicator, Non-Interchangeable Trip |
| Special Features | Current Limiting |
Description
Built for demanding commercial environments, the FI36070 is a 3-pole, 70A molded case circuit breaker from Square D. It features a thermal-magnetic trip unit with long-time and instantaneous functions to safeguard downstream equipment. This F-Frame breaker mounts into Square D I-Line panelboards and switchboards. As a legacy component, it maintains existing infrastructure and is replaced by the HRA36070 in newer setups. It boasts a 200kAIC rating at 480VAC and current-limiting capabilities.Specifications
| Brand | Square D |
|---|---|
| Part Number | FI36070-R |
| Series | FI |
| Amperage | 70A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 200kA @ 240VAC, 200kA @ 480Y/277VAC, 200kA @ 480VAC, 100kA @ 600Y/347VAC, 100kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | FI |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, Switchboards |
| Wire Gauge | 14-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 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, Undervoltage Release, Auxiliary Switch, Alarm Switch |
|---|---|
| Accessories | None included |
| Standards | CSA C22.2 No. 5, NEMA AB-1, UL 489, W-C-375B/GEN |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Current Limiting, HACR Rated, Visual Trip Indicator, Non-Interchangeable Trip |
| Special Features | Current Limiting |
Product FAQs
7 answersWhat panels and switchboards are compatible with the FI36070?
This breaker is designed exclusively for Square D I-Line panelboards and switchboards. It features an I-Line style plug-in connection that mounts directly to the busbar stack.
Is the Square D FI36070 still manufactured, or is there a modern replacement?
The FI36070 is a legacy F-Frame circuit breaker. In newer installations or when upgrading, it is typically replaced by the PowerPact H-Frame series, specifically the HRA36070 to maintain the 200kAIC rating at 480VAC.
What wire sizes are accepted by the lugs on the FI36070?
The factory lugs accept wire gauges from 14 AWG up to 1/0 AWG. They are rated for use with both copper and aluminum conductors.
What does the current limiting designation mean for this breaker?
As a current limiting breaker, the FI36070 is designed to clear a fault extremely fast, reducing the peak let-through current and energy. This provides enhanced protection for downstream equipment during high fault conditions.
How does the I-Line mounting system work for this breaker?
The breaker features plug-on phase jaws that connect directly to the panel busbar stack. A mounting bracket with a retaining screw secures the opposite end of the breaker to the panel backpan.
Can the FI36070 be used in DC electrical systems?
Yes, in addition to its AC ratings, this thermal magnetic breaker is rated for DC applications up to 250VDC with an interrupting capacity of 10kA.
Are the trip settings on the FI36070 adjustable?
No, this breaker features a fixed thermal and fixed magnetic trip unit. The long-time and instantaneous trip functions are factory set and cannot be adjusted in the field.
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