Engineered for commercial applications, the Federal Pacific HEF435070 provides reliable thermal-magnetic protection. This 3-pole, 70A molded case circuit breaker maintains existing infrastructure without requiring expensive system upgrades. It installs into legacy FPE panelboards and serves as an exact cross-reference for the NEF435070. The bolt-on mounting ensures a secure connection. Rated for 22 kAIC at 480VAC, this unit features fixed long-time and instantaneous trip functions.
Which panelboards are compatible with the Federal Pacific HEF435070?
This breaker is designed specifically for legacy Federal Pacific Electric (FPE) panelboards and switchboards configured to accept bolt-on H-Frame molded case circuit breakers.
What are the wire gauge requirements for the HEF435070 terminals?
The standard lugs on this breaker accommodate both copper (Cu) and aluminum (Al) conductors ranging from 4 AWG to 1/0 AWG. Ensure proper torque specifications are followed during installation.
How does the interrupting capacity (AIC) change depending on the system voltage?
The HEF435070 provides an interrupting rating of 22kAIC when installed in 480VAC systems. If used in 240VAC applications, the interrupting capacity increases to 42kAIC.
Can I use the HEF435070 to replace an older NEF series breaker?
Yes, Federal Pacific HEF frame breakers serve as exact drop-in replacements for discontinued NEF series breakers of the same amperage and pole configuration. They fit into the existing panelboard spaces without requiring mounting adapters.
Are the trip settings on the HEF435070 adjustable?
No, this breaker utilizes a thermal magnetic trip unit with fixed long-time and fixed instantaneous (LI) trip functions. It does not offer field-adjustable trip settings.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
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.
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.