NEW Summer 2026 SuperGear! SuperPoints Accepted »

Siemens / ITE EF3A050 - 50A 3 Pole Motor Circuit Protector

Brand Siemens / ITE
SKU EF3A050
5.0
Rated 5.0 out of 5 stars
2 Reviews
ITE EF3A050 3 Pole Circuit Breaker
Free Shipping Over $99

Siemens / ITE EF3A050 - 50A 3 Pole Motor Circuit Protector

Brand Siemens / ITE
SKU EF3A050
5.0
Rated 5.0 out of 5 stars
2 Reviews
Select Item Condition
Earn 569 SuperPoints

Quantity
Planning a Big Order?
Bulk pricing available—let us know your needs for a quote.
Get a quote
Shop with Confidence
Enjoy a free 60-day warranty, extendable to 1 year at checkout.
Learn more
ITE EF3A050 3 Pole Circuit Breaker

Siemens / ITE EF3A050 - 50A 3 Pole Motor Circuit Protector

Re-Certified

$569.99 No stock

Quantity

DescriptionSpecificationsSuperClubWarranties
Description
Built for heavy-duty motor protection, the EF3A050 utilizes a magnetic-only trip mechanism to interrupt short circuits instantly. This 50-amp unit works alongside separate overload relays in industrial motor control circuits. It installs into legacy ITE and Siemens motor control centers and panelboards. For upgrades, the ED63A050 is the recommended replacement. Delivering up to 18kAIC at 240VAC, this E-frame breaker features an adjustable magnetic trip range. Lugs are not included.

Specifications

Brand Siemens / ITE
Series EF
Part Number EF3A050-R
Amperage 50A
Voltage 600VAC
Poles 3
Phase 3
AIC Rating 18kA @ 240VAC, 14kA @ 480VAC, 14kA @ 600VAC
Mounting Style Bolt-On
Terminal Type Lugs
For Use With Siemens Panelboards, Motor Control Centers
Trip Technology Magnetic Only
Trip Function Code I
Trip Function Instantaneous Only
Trip Adjustability Adjustable Magnetic
Wire Gauge 10-1/0 AWG (Cu/Al)
Max Wire 1/0 AWG
Min Wire 10 AWG
Available Options Shunt Trip, Auxiliary Switch, Alarm Switch, Undervoltage Release
Accessories Lugs Not Included
Standards NEMA AB-1, UL 489
Approval CSA, UL
Temp Rating 40C
Construction Features Motor Circuit Protector

SuperClub

Get rewarded every time you shop! Join SuperClub for free and start earning points on every purchase, unlocking exclusive discounts, special promos, and VIP perks. Already a member? Keep shopping to level up your rewards and enjoy even more benefits, including faster shipping, extended returns, and premium offers.

Learn more about SuperClub

Warranties

We’ve got you covered!

When shopping with SuperBreakers, you’ll have peace of mind knowing that every single item you purchase includes a 60 day warranty, free of charge. Why such confidence? Because only the highest quality electrical parts have a place on our shelves, and we stand by every single one we sell.

If anything goes wrong with your item that is not a result of misuse or normal wear and tear, we’ll gladly replace it at no cost to you.

Click here to read our full warranty details

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.

Click here to read our full shipping policy
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.

5.0
Rated 5.0 out of 5 stars
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
Search
Search Reviews
Rating
Ratings
Write a Review (Opens in a new window)
2 reviews
  • VG
    Victor G.
    Verified Buyer
    Reviewing
    Siemens EF3B060 - 60A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    11/6/25
    Breakers fit my needs

    I wish I would of shopped this I found exact breaker for 400.00 cheaper

    Was this helpful?
  • RF
    Robert F.
    Flag of United States
    Reviewing
    Siemens EF3A100 - 100A 3 Pole Motor Circuit Protector
    I recommend this product
    Rated 5 out of 5 stars
    7/25/22
    Fast order and service for a part in good condition

    Fast order and service for a part in good condition.

    Was this helpful?

Related Products

Recently Viewed