Zinsco HAGF20 GFCI Miniature Circuit Breaker
- 20A
- 1 Pole
- Plug-On
Quantity
Zinsco HAGF20 - 20A GFCI Miniature Circuit Breaker
New
Quantity
Description
A drop-in replacement for discontinued panels, the Zinsco HAGF20 provides 20A of ground-fault protection on 120V systems. This single-pole breaker is essential for meeting NEC requirements in residential wet locations. It mounts into legacy Zinsco load centers, offering an exact fit that eliminates the need for modification. Featuring a 10kAIC interrupt rating and a pigtail neutral connection, this HACR-rated breaker includes a convenient ground fault self-test mechanism.Specifications
| Brand | Zinsco |
|---|---|
| Part Number | HAGF20 |
| Series | HAGF |
| Amperage | 20A |
| Poles | 1 |
| Mounting Style | Plug-On |
| Voltage | 120VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Zinsco Load Centers |
| Wire Gauge | 14-4 AWG |
| Max Wire | 4 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LIG |
| Trip Function | Long-Time, Instantaneous, Ground Fault |
| Trip Adjustability | Fixed |
| Special Classification | GFCI |
|---|---|
| Accessories | Pigtail Neutral |
| Standards | UL 489, UL 943 |
| Approval | UL |
| Temp Rating | 40C |
| Construction Features | Ground Fault Protection |
Product FAQs
5 answersWhat load centers accept the Zinsco HAGF20 breaker?
The HAGF20 is a plug-in miniature circuit breaker designed specifically for legacy Zinsco load centers. It is not compatible with modern panels from other manufacturers.
How is the neutral connection handled on the HAGF20?
This breaker features a pigtail neutral. The coiled white wire must be terminated directly to the neutral bus bar in the load center to provide a return path for the ground fault detection circuitry.
What should be inspected in the panel before installing a replacement Zinsco breaker?
Legacy Zinsco load centers are known for bus bar degradation. Before installing the HAGF20, inspect the aluminum bus bar for pitting, corrosion, or signs of arcing. Damaged bus bars can cause poor connections and overheating, which may require a full panel replacement.
What does the LIG trip function code indicate on the HAGF20?
The LIG designation means the breaker utilizes a thermal-magnetic trip unit with Long-Time (thermal overload) and Instantaneous (magnetic short-circuit) protection, combined with Ground-Fault detection.
Are there modern aftermarket GFCI replacements for the Zinsco HAGF20?
While aftermarket manufacturers like Connecticut Electric produce standard UBIZ replacement breakers for Zinsco panels, direct plug-in GFCI replacements are rarely manufactured today. Electricians often substitute a standard breaker and install a GFCI receptacle at the first outlet to achieve ground fault protection.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
Get a Quote
Don’t see what you’re looking for?
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
Same Day Shipping
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.