Allen Bradley
Allen Bradley W-57 Thermal Overload Heater Element 15.3-18.5A
Allen Bradley W-57 Type W Thermal Overload Heater Element
● In Stock
12-Mo Warranty
Same-Day Dispatch
Ships Worldwide
🎖 Veteran-Owned
In Stock — Ready to Ship
Get a price for W-57
Response within 1 business hour
12-month warranty
All units tested
Same-day dispatch
Order by 2pm CST
Worldwide delivery
US, EU, Asia, Middle East
Veteran-owned
CAGE: 9NK75
Type W Heater Element
Class 20 Trip Class
15.3-18.5A Range
Thermal Overload Protection
Manual Reset
Industrial Grade
Product description
The Allen-Bradley W-57 is a Type W thermal overload heater element designed for robust motor protection in industrial environments. This element operates within a current range of 15.3 to 18.5 Amps and provides Class 20 trip protection.
It serves as a critical component in thermal overload relays and magnetic motor starters, ensuring motors are safeguarded against damaging overcurrent conditions. Its applications are widespread in manufacturing, automation, and heavy industry.
Stanlo Automation, a veteran-owned surplus parts distributor, offers the Allen-Bradley W-57. We provide reliable components and dedicated customer service to support your industrial automation needs.
Technical specifications
| Part Number | W57 |
| Manufacturer | Allen-Bradley |
| Type | W |
| Full Load Amps Min | 15.3A |
| Full Load Amps Max | 18.5A |
| Trip Class | Class 20 |
Common applications
Motor Overload Protection
Industrial Control
Manufacturing Equipment
Automation Systems
Compatible systems
Compatible with specified Allen-Bradley thermal overload relays and magnetic motor starters.
Also known as
Allen Bradley W57 Heater
W57 Overload Unit
AB W57 Element
Replaces / compatible with
Designed for use with Allen-Bradley thermal overload relays and magnetic motor starters to provide essential motor protection.
Technical note
Expert tip
Correctly sizing the W-57 heater element to the motor's full load amperage is critical to prevent false trips and ensure motor safety.What happens next?
1
Email confirmation
Immediate receipt acknowledgment sent to you
2
Account manager assigned
Confirms your part's spec and condition
3
Your quote delivered
Tailored to your specific requirements
Frequently asked questions
What is the full load amp rating for the Allen Bradley W-57 heater element?
The Allen Bradley W-57 heater element is rated for a full load amperage range of 15.3 to 18.5 Amps. This rating is essential for accurate and reliable motor overload protection.