Square D B1.45 Overload Relay Thermal Unit - Pack of 7

Square DModel:B1.45
Location unavailable
Electrical Equipment
Qty:1
Condition: New
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Salter Industries

Seller since: Feb 2026

At a glance

Product
Square D B1.45 Overload Relay Thermal Unit - Pack of 7
Manufacturer
Square D
Model
B1.45
Category
Electrical Equipment
Condition
NEW
Availability
In stock
Price or process
Request price
Quantity
1
Lead time
Not provided
Location
Location unavailable
Fulfillment
Shipping only
Listed on

Key specifications

Compatibility
Square D Class 9065 thermal overload relays, NEMA sizes 00-4 starters
Full Load Amperage Max
1A
Full Load Amperage Min
0.81A
Number of Poles
3
Operating Temperature Max
60°F
Operating Temperature Min
-40°F
Trip Class
20

Supporting evidence

No supporting documents or certifications provided.

Description

The Square D B1.45 Overload Relay Thermal Unit is a critical component designed for use in motor protection systems, specifically compatible with Square D Class 9065 and similar thermal overload relays. These melting alloy thermal units provide reliable overload protection by detecting excessive current and heat in motor circuits, preventing damage from prolonged overloads. Ideal for industrial applications such as manufacturing, HVAC systems, and conveyor belts, they ensure motor longevity and operational safety. Key features include a Class 20 trip characteristic for standard protection, easy installation via plug-in design, and robust construction for harsh environments. Advantages over similar products include Square D's proven reliability, wide compatibility with NEMA starters, and cost-effectiveness for maintenance. Drawbacks may include the need for precise sizing based on motor FLA to avoid nuisance trips, and they are not suitable for electronic overload relays. This pack of 7 units is new in original packaging, making it suitable for bulk replacements or inventory stocking. Based on analysis of provided images, the units appear unused with intact seals, featuring labels indicating model B1.45, part number 58730, and manufacturing in Mexico. No parent/child assets are visible.
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Shipping Information

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Return Window
No returns accepted
Return Conditions
This equipment is sold as-is, where-is
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