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 Definite Purpose Magnetic Motor Starter: Non-Reversing, 3 Poles - Non-Reversing Starters with Thermal Overloads
SQUARE DNon-Reversing Starters with Thermal Overloads

SQUARE D Definite Purpose Magnetic Motor Starter: Non-Reversing, 3 Poles

The SQUARE D Definite Purpose Magnetic Motor Starter is a non-reversing starter with thermal overloads, featuring 3 poles and a 40 A rating with a 208-240V AC coil (MPN 8911DPSO43V09). It requires 3 thermal units…

SKU 3G-OTH-42030

Brand
SQUARE D
Item
Definite Purpose Magnetic Motor Starter: Non-Reversing, 3 Poles
Category
Non-Reversing 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
8911DPSO43V09
Type
40 A
Poles
3
AC Coil
208-240V
Thermal Units Required
3 Thermal Units Required (Not Included)
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 Definite Purpose Magnetic Motor Starter is a non-reversing starter with thermal overloads, featuring 3 poles and a 40 A rating with a 208-240V AC coil (MPN 8911DPSO43V09). It requires 3 thermal units (not included) for operation.

Frequently Asked Questions

What is the SQUARE D 8911DPSO43V09 definite purpose magnetic motor starter used for?

The SQUARE D 8911DPSO43V09 is a non-reversing magnetic motor starter with thermal overloads, designed to start and protect single-speed motors in HVAC, pumping, and light industrial applications. It handles up to 40 A and requires three thermal units (sold separately) for overload protection.

What are the specifications of the SQUARE D 8911DPSO43V09 motor starter?

The SQUARE D 8911DPSO43V09 is a 3-pole, non-reversing definite purpose magnetic motor starter rated at 40 A with a 208-240V AC coil. It requires three thermal units (not included) for overload protection. The manufacturer part number is 8911DPSO43V09.

Where to buy the SQUARE D 8911DPSO43V09 motor starter worldwide?

You can source the SQUARE D 8911DPSO43V09 definite purpose motor starter through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time.

How to select thermal units for the SQUARE D 8911DPSO43V09 starter?

To select thermal units for the SQUARE D 8911DPSO43V09 starter, match the motor full-load current to the appropriate SQUARE D thermal unit class (e.g., Class 10 or 20). The starter requires three thermal units, one per pole, ordered separately. Consult the motor nameplate and SQUARE D selection tables for correct sizing.

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 non-reversing 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 Definite Purpose Magnetic Motor Starter: Non-Reversing, 3 Poles, 40 A, 120V AC Coil (MPN 8911DPSO43V02). Key specifications — Brand: SQUARE D; Thermal Units Required: 3 Thermal Units Required (Not Included).
SQUARE D
SQUARE D Definite Purpose Magnetic Motor Starter: Non-Reversing, 3 Poles, 40 A, 120V AC Coil (MPN 8911DPSO43V02). Key specifications — Brand: SQUARE D; Thermal Units Required: 3 Thermal Units Required (Not Included).
SQUARE D Definite Purpose Magnetic Motor Starter: Non-Reversing, 3 Poles, 30 A, 208-240V AC Coil (MPN 8911DPSO33V09). Key specifications — Brand: SQUARE D; Thermal Units Required: 3 Thermal Units Required (Not Included).
SQUARE D
SQUARE D Definite Purpose Magnetic Motor Starter: Non-Reversing, 3 Poles, 30 A, 208-240V AC Coil (MPN 8911DPSO33V09). Key specifications — Brand: SQUARE D; Thermal Units Required: 3 Thermal Units Required (Not Included).
SQUARE D Definite Purpose Magnetic Motor Starter: Non-Reversing, 3 Poles, 40 A, 24V AC Coil, Thermal (MPN 8911DPSO43V14). Key specifications — Brand: SQUARE D; Thermal Units Required: 3 Thermal Units Required (Not Included).
SQUARE D
SQUARE D Definite Purpose Magnetic Motor Starter: Non-Reversing, 3 Poles, 40 A, 24V AC Coil, Thermal (MPN 8911DPSO43V14). Key specifications — Brand: SQUARE D; Thermal Units Required: 3 Thermal Units Required (Not Included).
SQUARE D Definite Purpose Magnetic Motor Starter: Non-Reversing, 2 Poles, 40 A, 208-240V AC Coil (MPN 8911DPSO42V09). Key specifications — Brand: SQUARE D; Thermal Units Required: 1 Thermal Unit Required (Not Included).
SQUARE D
SQUARE D Definite Purpose Magnetic Motor Starter: Non-Reversing, 2 Poles, 40 A, 208-240V AC Coil (MPN 8911DPSO42V09). Key specifications — Brand: SQUARE D; Thermal Units Required: 1 Thermal Unit Required (Not Included).
SQUARE D Definite Purpose Magnetic Motor Starter: Non-Reversing, 3 Poles, 20 A, 208-240V AC Coil (MPN 8911DPSO13V09). Key specifications — Brand: SQUARE D; Thermal Units Required: 3 Thermal Units Required (Not Included).
SQUARE D
SQUARE D Definite Purpose Magnetic Motor Starter: Non-Reversing, 3 Poles, 20 A, 208-240V AC Coil (MPN 8911DPSO13V09). Key specifications — Brand: SQUARE D; Thermal Units Required: 3 Thermal Units Required (Not Included).
SQUARE D Definite Purpose Magnetic Motor Starter: Non-Reversing, 2 Poles, 30 A, 208-240V AC Coil (MPN 8911DPSO32V09). Key specifications — Brand: SQUARE D; Thermal Units Required: 1 Thermal Unit Required (Not Included).
SQUARE D
SQUARE D Definite Purpose Magnetic Motor Starter: Non-Reversing, 2 Poles, 30 A, 208-240V AC Coil (MPN 8911DPSO32V09). Key specifications — Brand: SQUARE D; Thermal Units Required: 1 Thermal Unit Required (Not Included).

More from SQUARE D

View all SQUARE D parts →
SQUARE D Manual Motor Starter: Non-Reversing, 3 Poles, 27 A, NEMA Size M-1, Thermal Protection, SQR1 (MPN 2510MCO3). Key specifications — Maximum Voltage Rating: 600V AC; Brand: SQUARE D; Thermal Units Required: 3 (Not Included).
SQUARE D
SQUARE D Manual Motor Starter: Non-Reversing, 3 Poles, 27 A, NEMA Size M-1, Thermal Protection, SQR1 (MPN 2510MCO3). Key specifications — Maximum Voltage Rating: 600V AC; Brand: SQUARE D; Thermal Units Required: 3 (Not Included).
SQUARE D Magnetic Motor Starter: Non-Reversing, 3 Poles, NEMA Size 0, 18 A, 208V AC Coil (MPN 8536SBO2V08). Key specifications — Brand: SQUARE D; Coil Voltage: 208V 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 0, 18 A, 208V AC Coil (MPN 8536SBO2V08). Key specifications — Brand: SQUARE D; Coil Voltage: 208V 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 Magnetic Motor Starter: Non-Reversing, 3 Poles, NEMA Size 4, 135 A, 480V AC Coil (MPN 8536SFO1V06). Key specifications — Brand: SQUARE D; Coil Voltage: 480V 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, 480V AC Coil (MPN 8536SFO1V06). Key specifications — Brand: SQUARE D; Coil Voltage: 480V 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 Magnetic Motor Starter: Non-Reversing, 2 Poles, NEMA Size 1, 27 A, 240V AC Coil (MPN 8536SCO2V03). 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, 2 Poles, NEMA Size 1, 27 A, 240V AC Coil (MPN 8536SCO2V03). 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 Manual Motor Starter: Non-Reversing, 1 Poles, 16 A, Thermal Protection, Toggle Switch (MPN 2510FO1). Key specifications — Brand: SQUARE D; Thermal Units Required: 1 (Not Included).
SQUARE D
SQUARE D Manual Motor Starter: Non-Reversing, 1 Poles, 16 A, Thermal Protection, Toggle Switch (MPN 2510FO1). Key specifications — Brand: SQUARE D; Thermal Units Required: 1 (Not Included).
SQUARE D Magnetic Motor Starter: Non-Reversing, 3 Poles, NEMA Size 3, 90 A, 480V AC Coil (MPN 8536SEO1V06). Key specifications — Brand: SQUARE D; Coil Voltage: 480V 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 3, 90 A, 480V AC Coil (MPN 8536SEO1V06). Key specifications — Brand: SQUARE D; Coil Voltage: 480V 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 Magnetic Motor Starter: Non-Reversing, 3 Poles, NEMA Size 0, 18 A, 120V AC Coil (MPN 8536SBO2V02S). Key specifications — Brand: SQUARE D; Coil Voltage: 110/120V 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 0, 18 A, 120V AC Coil (MPN 8536SBO2V02S). Key specifications — Brand: SQUARE D; Coil Voltage: 110/120V 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 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.