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Siemens / ITE HF3B020 Molded Case Circuit Breaker
- 20A
- 3 Pole
- Bolt-On
Siemens / ITE
HF3B020
Molded Case Circuit Breaker
Brand
Siemens / ITE
SKU
HF3B020
Quantity
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Siemens / ITE HF3B020 - 20A 3 Pole Molded Case Circuit Breaker
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Description
Rated for 600VAC maximum, the Siemens HF3B020 is a 3-pole, 20A molded case circuit breaker engineered for industrial environments. It features fixed thermal and magnetic trip elements to safeguard branch circuits. This F-frame breaker is configured to bolt into Siemens P4 and P5 panelboards, SB switchboards, and MCCs. As a legacy component, it provides a seamless fit for existing setups and crosses to the newer HFD63B020 model. It offers a robust 65kAIC at 240VAC and 25kAIC at 480VAC.Specifications
| Brand | Siemens / ITE |
|---|---|
| Part Number | HF3B020-R |
| Series | HF |
| Amperage | 20A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 25kA @ 480VAC, 18kA @ 600VAC, 10kA @ 250VDC |
| Frame Type | HF |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P4 Panelboards, Siemens P5 Panelboards, Siemens SB Switchboards, Motor Control Centers |
| Wire Gauge | 14-1/0 AWG |
| 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, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | High Interrupting Capacity, HACR Rated, Non-Interchangeable Trip |
Product FAQs
5 answersWhich panelboards and switchboards are compatible with the HF3B020?
This F-frame breaker installs in Siemens P4 and P5 panelboards, SB switchboards, and motor control centers. Because it is a bolt-on breaker, it requires the appropriate strap kits or mounting hardware specific to your panel type.
Does the Siemens HF3B020 replace older ITE versions of this breaker?
Yes. Siemens acquired ITE and continued manufacturing this F-frame breaker. A modern Siemens HF3B020 is a direct drop-in replacement for an older ITE HF3B020, sharing the exact same physical dimensions and mounting footprint.
Are the thermal and magnetic trip settings adjustable on this breaker?
No. The HF3B020 features a fixed thermal and fixed magnetic trip unit. The long-time and instantaneous trip functions are factory set and cannot be modified in the field.
Is the HF3B020 suitable for direct current (DC) systems?
Yes, this breaker is rated for use in DC systems up to 250VDC, providing an interrupting rating of 10kA. Electricians must follow Siemens wiring diagrams for multi-pole DC configurations to ensure safe operation.
What are the wire size requirements for the HF3B020 lugs?
The standard factory lugs accept wire sizes from 14 AWG up to 1/0 AWG. Always verify whether your specific application requires copper or aluminum conductors and torque the terminal lugs to the specifications printed directly on the breaker label.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 2 reviews.
Total 5 star reviews: 2 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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Rating
2 reviews
- TJTravis J.ReviewingSiemens HF364 Heavy Duty Safety SwitchI recommend this productRated 5 out of 5 stars5/18/22fast!
wow great service
- SNShane N.ReviewingFederal Pacific HF631100 - 100A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars5/28/18Excellent Service and Fast Shipping
Breaker was shipped from the US to remote northern LAbrador, Canada very quickly and was in excellent condition. I would highly recommend SuperBreakers.