Square D 994370 Circuit Breaker
Quantity
Core Specs
See full specsSquare D 994370 3 Pole Circuit Breaker
Re-Certified
Quantity
Description
Square D 994370 3 Pole Circuit Breaker
The Square D 994370 is a 3 Pole thermal magnetic molded case circuit breaker with a current rating of 70 Amps and a voltage rating of 480V. It has an interrupting rating of 10kAIC at 480V. The 994370 has a bolt-on connection type and includes long time and instantaneous trip functions.
Specifications
| Brand | Square D |
|---|---|
| Series | ML-2 |
| Amperage | 70A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 600VAC |
| Phase | 3 |
| AIC Rating | 10kAIC at 480V |
| Trip Technology | Thermal Magnetic |
|---|
| Temp Rating | 40 °C |
|---|
Product FAQs
4 answersWhat type of protection does the LI trip function on the 994370 provide?
The long-time and instantaneous (LI) trip functions on this thermal-magnetic breaker provide dual-level protection. The long-time function prevents damage from sustained overcurrents, while the instantaneous function trips the breaker immediately during a short circuit.
How is the Square D 994370 secured within a panelboard?
This breaker features a bolt-on connection type. It must be mechanically fastened directly to the panel busbar using threaded hardware, providing a secure and vibration-resistant connection compared to standard plug-on breakers.
Is the 994370 breaker designed for 3-phase applications?
Yes, as a 3-pole circuit breaker, it is designed to protect 3-phase electrical circuits in commercial and industrial distribution systems operating at up to 480V.
How does the thermal-magnetic trip unit in the 994370 operate?
The thermal-magnetic mechanism uses a bimetallic strip to provide a delayed trip for continuous overloads, while an internal electromagnetic coil forces an immediate trip when exposed to high-fault short-circuit currents.
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.