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SQUARE D Thermal Unit, Trip Class 20, CC87.7 - Electrical
SQUAREElectrical

SQUARE D Thermal Unit, Trip Class 20, CC87.7

SQUARE Electrical.

SKU 3G-OTH-43226

Also listed as: CC877 · CC87 7 · CC87-7

Brand
SQUARE
Item
D Thermal Unit, Trip Class 20, CC87.7
Category
Electrical
UNSPSC
39121029 — Isolation transformer
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
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Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

SQUARE
Manufacturer Part Number
CC87.7

Technical Documents

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SQUARE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

SQUARE Electrical.

Frequently Asked Questions

What is the SQUARE D Thermal Unit CC87.7 used for?

The SQUARE D Thermal Unit CC87.7 is an overload protection device used in motor starters and controllers. It protects electric motors from damage due to prolonged overcurrent conditions by sensing heat and tripping the circuit. Common applications include industrial machinery, pumps, conveyors, and HVAC systems where reliable motor protection is required.

What are the specifications of the SQUARE D Thermal Unit CC87.7?

The SQUARE D Thermal Unit CC87.7 has a trip class of 20 and a manufacturer part number of CC87.7. It is designed for use with SQUARE D motor starters and provides thermal overload protection. The trip class rating indicates the maximum time in seconds the unit will allow before tripping under locked-rotor conditions.

Where to buy SQUARE D Thermal Unit CC87.7 worldwide?

You can source the SQUARE D Thermal Unit CC87.7 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact our team for pricing and lead time on this part. We supply genuine SQUARE D components for motor protection applications.

How to select the correct SQUARE D thermal unit for a motor?

To select the correct SQUARE D thermal unit, match the motor full-load current (FLA) to the unit's ampere rating range. The CC87.7 is a 20 trip class unit suitable for standard motor starting. Always consult the motor nameplate and SQUARE D selection tables to ensure proper overload protection without nuisance tripping.

Used in

Common applications for SQUARE
Industrial power distribution — Square D HU362AWC non-fusible safety switch for disconnecting three-phase loads up to 60 A.
Busway branch circuits — Square D PQ4203G fusible bus plug for overcurrent protection in I-Line busway systems.
Panelboard surge protection — Square D HL4IMA24C SPD for transient voltage suppression in 277/480V AC wye systems.
Power distribution in control panels — Square D 9080LBA263106 open distribution block for splitting 400 kcmil conductors.
Machine control stations — Square D 9001BG303 push-button station for open/close/stop operations in industrial machinery.
Motor starting and protection — Square D 8536SBG2V02H30S NEMA starter for non-reversing three-phase motor control up to 18 A.

SQUARE Products

3G Electric supplies SQUARE electrical. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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