Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
SQUARE D NEMA Combination Starter: Fusible Disconnect, 3 Poles, NEMA Size 1 - Fusible Starters with Thermal Overloads
SQUARE DFusible Starters with Thermal Overloads

SQUARE D NEMA Combination Starter: Fusible Disconnect, 3 Poles, NEMA Size 1

The SQUARE D NEMA Combination Starter is a fusible disconnect starter with thermal overloads, part of the Series 8538. This three-phase, 3-pole unit is rated for 600V AC maximum and features a 120V AC coil voltage…

SKU 3G-OTH-43371

Brand
SQUARE D
Item
NEMA Combination Starter: Fusible Disconnect, 3 Poles, NEMA Size 1
Category
Fusible Starters with Thermal Overloads
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

SQUARE D
Manufacturer Part Number
8538SCA24V02S
Series
8538
Type
NEMA Size 1, NEMA-Rated 12
AC
120V
Phase
Three
Poles
3
Poles/Phase
3 Pole / Three Phase
Coil Voltage
120V AC
Operator Type
No Operator
For Fuse Class
Class H
Control Transformer
No
Includes Pilot Light
No
Maximum Voltage Rating
600V AC
Thermal Units Required
3 Melting Alloy Units (Not Included)
Terminal Connection Type
Quick-Disconnect Terminals
Includes Auxiliary Contacts
No
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The SQUARE D NEMA Combination Starter is a fusible disconnect starter with thermal overloads, part of the Series 8538. This three-phase, 3-pole unit is rated for 600V AC maximum and features a 120V AC coil voltage. It is designed for Class H fuses and requires three melting alloy thermal units (not included). The starter includes quick-disconnect terminals and is NEMA Size 1 rated.

Frequently Asked Questions

What is the SQUARE D 8538SCA24V02S combination starter used for?

The SQUARE D 8538SCA24V02S is a NEMA Size 1 fusible combination starter with thermal overloads, designed for three-phase motor control in industrial applications up to 600V AC. It integrates a Class H fusible disconnect and overload protection in a single NEMA 12 enclosure, suitable for harsh environments.

What are the specifications of the SQUARE D 8538SCA24V02S?

This SQUARE D starter is a 3-pole, three-phase unit rated NEMA Size 1 with a 120V AC coil voltage and 600V AC maximum voltage. It uses Class H fuses and requires three melting alloy thermal units (not included). The enclosure is NEMA 12 rated, and terminals are quick-disconnect type.

Where to buy the SQUARE D 8538SCA24V02S worldwide?

3G Electric supplies the SQUARE D 8538SCA24V02S combination starter to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this NEMA Size 1 fusible disconnect starter.

How to select thermal units for the SQUARE D 8538SCA24V02S?

Selecting thermal units for the SQUARE D 8538SCA24V02S requires matching the melting alloy heater to the motor's full-load current. The starter accepts three Class H melting alloy units (not included). Refer to the motor nameplate and SQUARE D heater selection tables to choose the correct thermal unit size 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

SQUARE D Products

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

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
SQUARE D NEMA Combination Starter: Circuit Breaker, 3 Poles, NEMA Size 1, 120V AC, NEMA-Rated 1 (MPN 8539SCG44V02S). Key specifications — Includes Pilot Light: No; Maximum Voltage Rating: 600V AC; Brand: SQUARE D; Phase: Three; Coil Voltage: 120V AC; Control Transformer: No; Series: 8539; Includes Auxiliary Contacts: No.
SQUARE D
SQUARE D NEMA Combination Starter: Circuit Breaker, 3 Poles, NEMA Size 1, 120V AC, NEMA-Rated 1 (MPN 8539SCG44V02S). Key specifications — Includes Pilot Light: No; Maximum Voltage Rating: 600V AC; Brand: SQUARE D; Phase: Three; Coil Voltage: 120V AC; Control Transformer: No; Series: 8539; Includes Auxiliary Contacts: No.
SQUARE D NEMA Combination Starter: Circuit Breaker, 3 Poles, NEMA Size 0, 120V AC, NEMA-Rated 12 (MPN 8539SBA53V02S). Key specifications — Includes Pilot Light: No; Maximum Voltage Rating: 600V AC; Brand: SQUARE D; Phase: Three; Coil Voltage: 120V AC; Control Transformer: No; Series: 8539; Includes Auxiliary Contacts: No.
SQUARE D
SQUARE D NEMA Combination Starter: Circuit Breaker, 3 Poles, NEMA Size 0, 120V AC, NEMA-Rated 12 (MPN 8539SBA53V02S). Key specifications — Includes Pilot Light: No; Maximum Voltage Rating: 600V AC; Brand: SQUARE D; Phase: Three; Coil Voltage: 120V AC; Control Transformer: No; Series: 8539; Includes Auxiliary Contacts: No.
SQUARE D NEMA Combination Starter: Circuit Breaker, 3 Poles, NEMA Size 1, 120V AC, NEMA-Rated 12 (MPN 8539SCA54V02S). Key specifications — Includes Pilot Light: No; Maximum Voltage Rating: 600V AC; Brand: SQUARE D; Phase: Three; Coil Voltage: 120V AC; Control Transformer: No; Series: 8539; Includes Auxiliary Contacts: No.
SQUARE D
SQUARE D NEMA Combination Starter: Circuit Breaker, 3 Poles, NEMA Size 1, 120V AC, NEMA-Rated 12 (MPN 8539SCA54V02S). Key specifications — Includes Pilot Light: No; Maximum Voltage Rating: 600V AC; Brand: SQUARE D; Phase: Three; Coil Voltage: 120V AC; Control Transformer: No; Series: 8539; Includes Auxiliary Contacts: No.
SQUARE D NEMA Combination Starter: Circuit Breaker, 3 Poles, NEMA Size 2, 120V AC, NEMA-Rated 12 (MPN 8539SDA53V02S). Key specifications — Includes Pilot Light: No; Maximum Voltage Rating: 600V AC; Brand: SQUARE D; Phase: Three; Coil Voltage: 120V AC; Control Transformer: No; Series: 8539; Includes Auxiliary Contacts: No.
SQUARE D
SQUARE D NEMA Combination Starter: Circuit Breaker, 3 Poles, NEMA Size 2, 120V AC, NEMA-Rated 12 (MPN 8539SDA53V02S). Key specifications — Includes Pilot Light: No; Maximum Voltage Rating: 600V AC; Brand: SQUARE D; Phase: Three; Coil Voltage: 120V AC; Control Transformer: No; Series: 8539; Includes Auxiliary Contacts: No.
SQUARE D Magnetic Motor Starter: Non-Reversing, 3 Poles, NEMA Size 4, 135 A, 240V AC Coil (MPN 8536SFO1V03). Key specifications — Brand: SQUARE D; Coil Voltage: 220/240V AC; Phase: Three; Operator: None; Terminal Connection Type: Screw Clamp Terminals; Includes Pilot Light: No; Operator Controls: None; Auxiliary Contacts Included: No Auxiliary Contacts Included.
SQUARE D
SQUARE D Magnetic Motor Starter: Non-Reversing, 3 Poles, NEMA Size 4, 135 A, 240V AC Coil (MPN 8536SFO1V03). Key specifications — Brand: SQUARE D; Coil Voltage: 220/240V AC; Phase: Three; Operator: None; Terminal Connection Type: Screw Clamp Terminals; Includes Pilot Light: No; Operator Controls: None; Auxiliary Contacts Included: No Auxiliary Contacts Included.

More from SQUARE D

View all SQUARE D parts →
SQUARE D NEMA Combination Starter: Fusible Disconnect, 3 Poles, NEMA Size 0, 120V AC, NEMA-Rated 1 (MPN 8538SBG13V02S). Key specifications — Includes Pilot Light: No; Maximum Voltage Rating: 600V AC; Brand: SQUARE D; Phase: Three; Coil Voltage: 120V AC; Control Transformer: No; For Fuse Class: Class H; Series: 8538.
SQUARE D
SQUARE D NEMA Combination Starter: Fusible Disconnect, 3 Poles, NEMA Size 0, 120V AC, NEMA-Rated 1 (MPN 8538SBG13V02S). Key specifications — Includes Pilot Light: No; Maximum Voltage Rating: 600V AC; Brand: SQUARE D; Phase: Three; Coil Voltage: 120V AC; Control Transformer: No; For Fuse Class: Class H; Series: 8538.
SQUARE D NEMA Combination Starter: Fusible Disconnect, 3 Poles, NEMA Size 2, 120V AC, NEMA-Rated 12 (MPN 8538SDA24V02S). Key specifications — Includes Pilot Light: No; Maximum Voltage Rating: 600V AC; Brand: SQUARE D; Phase: Three; Coil Voltage: 120V AC; Control Transformer: No; For Fuse Class: Class H; Series: 8538.
SQUARE D
SQUARE D NEMA Combination Starter: Fusible Disconnect, 3 Poles, NEMA Size 2, 120V AC, NEMA-Rated 12 (MPN 8538SDA24V02S). Key specifications — Includes Pilot Light: No; Maximum Voltage Rating: 600V AC; Brand: SQUARE D; Phase: Three; Coil Voltage: 120V AC; Control Transformer: No; For Fuse Class: Class H; Series: 8538.
SQUARE D NEMA Combination Starter: Fusible Disconnect, 3 Poles, NEMA Size 1, 120V AC, NEMA-Rated 1 (MPN 8538SCG14V02S). Key specifications — Includes Pilot Light: No; Maximum Voltage Rating: 600V AC; Brand: SQUARE D; Phase: Three; Coil Voltage: 120V AC; Control Transformer: No; For Fuse Class: Class H; Series: 8538.
SQUARE D
SQUARE D NEMA Combination Starter: Fusible Disconnect, 3 Poles, NEMA Size 1, 120V AC, NEMA-Rated 1 (MPN 8538SCG14V02S). Key specifications — Includes Pilot Light: No; Maximum Voltage Rating: 600V AC; Brand: SQUARE D; Phase: Three; Coil Voltage: 120V AC; Control Transformer: No; For Fuse Class: Class H; Series: 8538.
SQUARE D NEMA Combination Starter: Fusible Disconnect, 3 Poles, NEMA Size 1, 120V AC, NEMA-Rated 1 (MPN 8538SCG12V02S). Key specifications — Includes Pilot Light: No; Maximum Voltage Rating: 600V AC; Brand: SQUARE D; Phase: Three; Coil Voltage: 120V AC; Control Transformer: No; For Fuse Class: Class H; Series: 8538.
SQUARE D
SQUARE D NEMA Combination Starter: Fusible Disconnect, 3 Poles, NEMA Size 1, 120V AC, NEMA-Rated 1 (MPN 8538SCG12V02S). Key specifications — Includes Pilot Light: No; Maximum Voltage Rating: 600V AC; Brand: SQUARE D; Phase: Three; Coil Voltage: 120V AC; Control Transformer: No; For Fuse Class: Class H; Series: 8538.
SQUARE D NEMA Combination Starter: Fusible Disconnect, 3 Poles, NEMA Size 0, 120V AC, NEMA-Rated 12 (MPN 8538SBA23V02S). Key specifications — Includes Pilot Light: No; Maximum Voltage Rating: 600V AC; Brand: SQUARE D; Phase: Three; Coil Voltage: 120V AC; Control Transformer: No; For Fuse Class: Class H; Series: 8538.
SQUARE D
SQUARE D NEMA Combination Starter: Fusible Disconnect, 3 Poles, NEMA Size 0, 120V AC, NEMA-Rated 12 (MPN 8538SBA23V02S). Key specifications — Includes Pilot Light: No; Maximum Voltage Rating: 600V AC; Brand: SQUARE D; Phase: Three; Coil Voltage: 120V AC; Control Transformer: No; For Fuse Class: Class H; Series: 8538.
SQUARE D NEMA Combination Starter: Fusible Disconnect, 3 Poles, NEMA Size 3, 120V AC, NEMA-Rated 1 (MPN 8538SEG13V02S). Key specifications — Includes Pilot Light: No; Maximum Voltage Rating: 600V AC; Brand: SQUARE D; Phase: Three; Coil Voltage: 120V AC; Control Transformer: No; For Fuse Class: Class H; Series: 8538.
SQUARE D
SQUARE D NEMA Combination Starter: Fusible Disconnect, 3 Poles, NEMA Size 3, 120V AC, NEMA-Rated 1 (MPN 8538SEG13V02S). Key specifications — Includes Pilot Light: No; Maximum Voltage Rating: 600V AC; Brand: SQUARE D; Phase: Three; Coil Voltage: 120V AC; Control Transformer: No; For Fuse Class: Class H; Series: 8538.
SQUARE D NEMA Combination Starter: Fusible Disconnect, 3 Poles, NEMA Size 2, 120V AC, NEMA-Rated 1 (MPN 8538SDG14V02S). Key specifications — Includes Pilot Light: No; Maximum Voltage Rating: 600V AC; Brand: SQUARE D; Phase: Three; Coil Voltage: 120V AC; Control Transformer: No; For Fuse Class: Class H; Series: 8538.
SQUARE D
SQUARE D NEMA Combination Starter: Fusible Disconnect, 3 Poles, NEMA Size 2, 120V AC, NEMA-Rated 1 (MPN 8538SDG14V02S). Key specifications — Includes Pilot Light: No; Maximum Voltage Rating: 600V AC; Brand: SQUARE D; Phase: Three; Coil Voltage: 120V AC; Control Transformer: No; For Fuse Class: Class H; Series: 8538.