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SQUARE D 8539SCG44V02S NEMA Size 1 Combination Starter - Circuit Breaker Starters with Thermal Overloads
SQUARE DCircuit Breaker Starters with Thermal Overloads

SQUARE D 8539SCG44V02S NEMA Size 1 Combination Starter

The SQUARE D NEMA Combination Starter is a circuit breaker starter with thermal overloads, part of the Series 8539. This three-phase, 3-pole unit has a NEMA Size 1 rating, a maximum voltage rating of 600V AC, and a…

SKU 3G-OTH-44341

Brand
SQUARE D
Item
8539SCG44V02S NEMA Size 1 Combination Starter
Part Number
8539SCG44V02S
Category
Circuit Breaker Starters with Thermal Overloads
Available to Order
Also known as:8539SCG44V02SSQUARE D
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Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

SQUARE D
Manufacturer Part Number
8539SCG44V02S
Series
8539
Type
NEMA Size 1, NEMA-Rated 1
AC
120V
Phase
Three
Poles
3
Poles/Phase
3 Pole / Three Phase
Coil Voltage
120V AC
Operator Type
No Operator
Control Transformer
No
Includes Pilot Light
No
Maximum Voltage Rating
600V AC
Thermal Units Required
3 Melting Alloy Units (Not Included)
Includes Auxiliary Contacts
No

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

Product Description

The SQUARE D NEMA Combination Starter is a circuit breaker starter with thermal overloads, part of the Series 8539. This three-phase, 3-pole unit has a NEMA Size 1 rating, a maximum voltage rating of 600V AC, and a coil voltage of 120V AC. It requires three melting alloy thermal units (not included) and does not include a control transformer, pilot light, or auxiliary contacts.

Frequently Asked Questions

What is the SQUARE D 8539SCG44V02S combination starter used for?

The SQUARE D NEMA Combination Starter is used to start and protect three-phase motors in industrial applications. It combines a circuit breaker and a NEMA Size 1 starter with thermal overload protection, suitable for systems up to 600V AC. Common uses include conveyors, pumps, and compressors in manufacturing and processing plants.

What are the specifications of the SQUARE D 8539SCG44V02S?

This SQUARE D combination starter is a three-phase, 3-pole unit with NEMA Size 1 and NEMA-Rated 1 enclosure. It has a maximum voltage rating of 600V AC, a coil voltage of 120V AC, and requires three melting alloy thermal units (not included). It does not include a control transformer, pilot light, or auxiliary contacts.

Where to buy the SQUARE D 8539SCG44V02S worldwide?

3G Electric supplies the SQUARE D 8539SCG44V02S combination starter to customers worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact our team to place an order or request a quote for this NEMA Size 1 starter.

How to select thermal units for the SQUARE D 8539SCG44V02S?

Selecting thermal units for this SQUARE D starter requires matching the melting alloy units to the full-load current of your motor. The starter needs three melting alloy thermal units (not included). Refer to the motor nameplate for current rating and consult SQUARE D selection tables to choose the correct heater element for proper overload protection.

Used in

Common applications for SQUARE D
Commercial building electrical panels — Square D QO series plug-in circuit breakers for branch circuit protection
Industrial motor control centers — Square D QOB series bolt-on breakers in NQOD panelboards
Heating equipment installations — Square D QOU series unit-mount breakers for overcurrent protection
Outdoor electrical distribution — Square D L-Frame enclosures housing LAL/LHL breakers for 400 A service
Indoor facility power distribution — Square D Q-Frame enclosures with QBL/QDL breakers for 225 A circuits
Retrofit and replacement in existing Square D load centers — QO series breakers for 120/240V AC systems
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SQUARE D Products

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

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Three-phase, 3-pole NEMA Size 1 combination starter with circuit breaker and thermal overload protection. Coil voltage 120V AC, maximum voltage rating 600V AC. NEMA 12 enclosure protects against dust and dripping liquids. Requires 3 melting alloy thermal units (not included). No control transformer, pilot light, or auxiliary contacts
SQUARE D
Three-phase, 3-pole NEMA Size 1 combination starter with circuit breaker and thermal overload protection. Coil voltage 120V AC, maximum voltage rating 600V AC. NEMA 12 enclosure protects against dust and dripping liquids. Requires 3 melting alloy thermal units (not included). No control transformer, pilot light, or auxiliary contacts

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