SQUARE D NEMA Combination Starter: Circuit Breaker, 3 Poles, NEMA Size 1
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
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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.
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Common applications for SQUARE DSQUARE 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.










