The Square D C40.0B is an overload thermal unit heating element, classified under Thermal Overload Heaters for Starters within the Contactors and Starters category. It is a replacement heating element for motor starter overload relays, sized to match the motor full-load current for thermal protection.
Square D C40.0B Thermal Overload Heater, Current Production
MPNC40.0B
Square D, Thermal Overload Heaters for Starters, C40.0B, overload thermal unit heating element, current production, 0.03 kgs.
$28.04Ref. price · indicative, final on quote
StockContact for availability
MOQ1 pcs
Sourced new & surplus through independent channelsListing updated Jul 2026
Specifications
Mechanical
| Parameter | Value |
|---|---|
| Weight | 0.03 kgs |
Product details
Frequently asked questions
How do I get current pricing and availability for C40.0B?
The C40.0B is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.
What is C40.0B's listed part number?
The listed part number is C40.0B.
What is C40.0B's listed weight?
The listed weight is 0.03 kgs.
MPN
C40.0B