Square D B15.5 Overload Relay Thermal Unit

Square DModel:B15.5
Location unavailable
Electrical Equipment
Qty:1
Condition: New
Request priceIn stock
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Motor Control Center
Motor Control Center

Seller since: Feb 2026

At a glance

Product
Square D B15.5 Overload Relay Thermal Unit
Manufacturer
Square D
Model
B15.5
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

Ambient Temperature Max
60°F
Ambient Temperature Min
-40°F
Full Load Amps (FLA) Max
9.59A
Full Load Amps (FLA) Min
8.45A
NEMA Size Compatibility
Square D Class 9065 Overload Relays, NEMA Sizes 00, 0, 1, 2
Trip Class
20

Supporting evidence

No supporting documents or certifications provided.

Description

The Square D B15.5 Overload Relay Thermal Unit is a critical component designed for use in motor protection systems, specifically compatible with Square D Class 9065 overload relays. This thermal unit provides reliable overload protection by sensing excessive current and heat in motor circuits, preventing damage from prolonged overloads. It features a bimetallic element that bends under heat to trip the relay, offering precise protection tailored to motor full load amperage (FLA) ranges. Key applications include industrial motor starters in manufacturing, HVAC systems, and conveyor belts, where it ensures safe operation and extends equipment life. Advantages over similar products include Square D's reputation for durability, easy installation via plug-in design, and compatibility with a wide range of NEMA-sized starters. Benefits include cost-effective protection, quick response times, and reduced downtime. Drawbacks may include the need for exact sizing to motor FLA to avoid nuisance trips and limited reusability after tripping. This unit is brand new, as indicated by the packaging and condition in images, with no visible wear. The faceplate shows 'B15.5' markings, and it's made in Mexico with a possible date code of 18 05. No parent/child assets are attached. For resources, refer to Schneider Electric's official site: Thermal Unit Selection Guide (https://www.se.com/us/en/download/document/9065CT9801/) and Overload Relay Catalog (https://download.schneider-electric.com/files?p_enDocType=Catalog&p_File_Name=8536CT9701.pdf).
Location unavailable for this listing.

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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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