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
Dayton Definite Purpose Magnetic Contactor: 3 Poles, 208-240V AC, 25 A - Non-Reversing Definite Purpose Contactors
DaytonNon-Reversing Definite Purpose Contactors

Dayton Definite Purpose Magnetic Contactor: 3 Poles, 208-240V AC, 25 A

The DAYTON Definite Purpose Magnetic Contactor (MPN 783Y03) is a non-reversing, three-pole contactor designed for HVACR applications. It features a 208/240V AC coil voltage, a maximum voltage rating of 600V AC, and a…

SKU 3G-OTH-44290

Brand
Dayton
Item
Definite Purpose Magnetic Contactor: 3 Poles, 208-240V AC, 25 A
Category
Non-Reversing Definite Purpose Contactors
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

Dayton
Manufacturer Part Number
783Y03
Type
25 A, Non-Reversing
AC
208-240V
Phase
Three
Coil Voltage
208/240V AC
Mounting Style
Through Panel
Contactor Style
HVACR Definite Purpose Contactor
Main Pole Contact Form
3NO
Maximum Voltage Rating
600V AC
Terminal Connection Type
Box Lugs
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

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

Product Description

The DAYTON Definite Purpose Magnetic Contactor (MPN 783Y03) is a non-reversing, three-pole contactor designed for HVACR applications. It features a 208/240V AC coil voltage, a maximum voltage rating of 600V AC, and a 25 A rating, with a 3NO main pole contact form and box lug terminals for through-panel mounting.

Frequently Asked Questions

What is a DAYTON definite purpose magnetic contactor used for?

The DAYTON 783Y03 definite purpose magnetic contactor is used to switch HVACR equipment such as compressors, condenser fans, and air handlers. Its 25 A, three-pole, non-reversing design with a 208/240V AC coil reliably controls motor loads in commercial and industrial heating, ventilation, air conditioning, and refrigeration systems.

What are the specifications of the DAYTON 783Y03 contactor?

The DAYTON 783Y03 is a three-pole, non-reversing definite purpose contactor with a coil voltage of 208/240V AC, a maximum voltage rating of 600V AC, and a 25 A rating. It features a 3NO main pole contact form, box lug terminals, and through-panel mounting. It is designed for HVACR applications.

Where to buy a DAYTON 783Y03 contactor worldwide?

3G Electric supplies the DAYTON 783Y03 definite purpose contactor to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us for pricing and lead time on this HVACR contactor.

How to install a DAYTON definite purpose contactor?

Mount the DAYTON 783Y03 contactor through the panel using the provided holes. Connect power and load wires to the box lug terminals, ensuring torque meets manufacturer specs. Wire the 208/240V AC coil to the control circuit. Always follow local electrical codes and the equipment manufacturer's instructions for safe installation.

Used in

Common applications for Dayton
HVAC ventilation — DAYTON centrifugal upblast roof exhaust fans (SKU 7M7U3) for kitchen exhaust systems
Mechanical power transmission — DAYTON HTD timing pulleys (SKU 404GV0) for conveyor belt drives
Process water handling — DAYTON self-priming centrifugal pumps (SKU 2ZXT4) for dewatering or transfer
Roofing and building services — DAYTON fixed ventilated roof curbs (SKU 4HX59) for filtered supply fan installations
Material handling — DAYTON latch assemblies (SKU 2KEN4) for electric chain hoist hook safety
Industrial air movement — DAYTON downblast roof exhaust fans (SKU 3HFL9) for clean air exhaust in manufacturing plants

Dayton Products

3G Electric supplies Dayton non-reversing definite purpose contactors. 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
DAYTON Definite Purpose Magnetic Contactor: 3 Poles, 120V AC, 25 A, Non-Reversing (MPN 783Y04). Key specifications — Brand: DAYTON; Coil Voltage: 120V AC; Contactor Style: HVACR Definite Purpose Contactor; Mounting Style: Through Panel; Terminal Connection Type: Box Lugs; Maximum Voltage Rating: 600V AC; Phase: Three; Main Pole Contact Form: 3NO.
Dayton
DAYTON Definite Purpose Magnetic Contactor: 3 Poles, 120V AC, 25 A, Non-Reversing (MPN 783Y04). Key specifications — Brand: DAYTON; Coil Voltage: 120V AC; Contactor Style: HVACR Definite Purpose Contactor; Mounting Style: Through Panel; Terminal Connection Type: Box Lugs; Maximum Voltage Rating: 600V AC; Phase: Three; Main Pole Contact Form: 3NO.
DAYTON Definite Purpose Magnetic Contactor: 3 Poles, 120V AC, 32 A, Non-Reversing (MPN 783Y01). Key specifications — Brand: DAYTON; Coil Voltage: 120V AC; Contactor Style: HVACR Definite Purpose Contactor; Mounting Style: Through Panel; Terminal Connection Type: Box Lugs; Maximum Voltage Rating: 600V AC; Phase: Three; Main Pole Contact Form: 3NO.
Dayton
DAYTON Definite Purpose Magnetic Contactor: 3 Poles, 120V AC, 32 A, Non-Reversing (MPN 783Y01). Key specifications — Brand: DAYTON; Coil Voltage: 120V AC; Contactor Style: HVACR Definite Purpose Contactor; Mounting Style: Through Panel; Terminal Connection Type: Box Lugs; Maximum Voltage Rating: 600V AC; Phase: Three; Main Pole Contact Form: 3NO.
DAYTON Definite Purpose Magnetic Contactor: 3 Poles, 208-240V AC, 90 A, Non-Reversing (MPN 783XY3). Key specifications — Brand: DAYTON; Coil Voltage: 208/240V AC; Contactor Style: HVACR Definite Purpose Contactor; Mounting Style: Through Panel; Terminal Connection Type: Box Lugs; Maximum Voltage Rating: 600V AC; Phase: Three; Main Pole Contact Form: 3NO.
Dayton
DAYTON Definite Purpose Magnetic Contactor: 3 Poles, 208-240V AC, 90 A, Non-Reversing (MPN 783XY3). Key specifications — Brand: DAYTON; Coil Voltage: 208/240V AC; Contactor Style: HVACR Definite Purpose Contactor; Mounting Style: Through Panel; Terminal Connection Type: Box Lugs; Maximum Voltage Rating: 600V AC; Phase: Three; Main Pole Contact Form: 3NO.
DAYTON Definite Purpose Magnetic Contactor: 3 Poles, 24V AC, 25 A, Non-Reversing (MPN 783Y02). Key specifications — Brand: DAYTON; Coil Voltage: 24V AC; Contactor Style: HVACR Definite Purpose Contactor; Mounting Style: Through Panel; Terminal Connection Type: Box Lugs; Maximum Voltage Rating: 600V AC; Phase: Three; Main Pole Contact Form: 3NO.
Dayton
DAYTON Definite Purpose Magnetic Contactor: 3 Poles, 24V AC, 25 A, Non-Reversing (MPN 783Y02). Key specifications — Brand: DAYTON; Coil Voltage: 24V AC; Contactor Style: HVACR Definite Purpose Contactor; Mounting Style: Through Panel; Terminal Connection Type: Box Lugs; Maximum Voltage Rating: 600V AC; Phase: Three; Main Pole Contact Form: 3NO.
DAYTON Definite Purpose Magnetic Contactor: 3 Poles, 208-240V AC, 50 A, Non-Reversing (MPN 783XZ3). Key specifications — Brand: DAYTON; Coil Voltage: 208/240V AC; Contactor Style: HVACR Definite Purpose Contactor; Mounting Style: Through Panel; Terminal Connection Type: Box Lugs; Maximum Voltage Rating: 600V AC; Phase: Three; Main Pole Contact Form: 3NO.
Dayton
DAYTON Definite Purpose Magnetic Contactor: 3 Poles, 208-240V AC, 50 A, Non-Reversing (MPN 783XZ3). Key specifications — Brand: DAYTON; Coil Voltage: 208/240V AC; Contactor Style: HVACR Definite Purpose Contactor; Mounting Style: Through Panel; Terminal Connection Type: Box Lugs; Maximum Voltage Rating: 600V AC; Phase: Three; Main Pole Contact Form: 3NO.
DAYTON Definite Purpose Magnetic Contactor: 3 Poles, 208-240V AC, 75 A, Non-Reversing (MPN 783XY1). Key specifications — Brand: DAYTON; Coil Voltage: 208/240V AC; Contactor Style: HVACR Definite Purpose Contactor; Mounting Style: Through Panel; Terminal Connection Type: Box Lugs; Maximum Voltage Rating: 600V AC; Phase: Three; Main Pole Contact Form: 3NO.
Dayton
DAYTON Definite Purpose Magnetic Contactor: 3 Poles, 208-240V AC, 75 A, Non-Reversing (MPN 783XY1). Key specifications — Brand: DAYTON; Coil Voltage: 208/240V AC; Contactor Style: HVACR Definite Purpose Contactor; Mounting Style: Through Panel; Terminal Connection Type: Box Lugs; Maximum Voltage Rating: 600V AC; Phase: Three; Main Pole Contact Form: 3NO.

More from Dayton

View all Dayton parts →
DAYTON Definite Purpose Magnetic Contactor: 3 Poles, 120V AC, 50 A, Non-Reversing (MPN 783XZ4). Key specifications — Brand: DAYTON; Coil Voltage: 120V AC; Contactor Style: HVACR Definite Purpose Contactor; Mounting Style: Through Panel; Terminal Connection Type: Box Lugs; Maximum Voltage Rating: 600V AC; Phase: Three; Main Pole Contact Form: 3NO.
Dayton
DAYTON Definite Purpose Magnetic Contactor: 3 Poles, 120V AC, 50 A, Non-Reversing (MPN 783XZ4). Key specifications — Brand: DAYTON; Coil Voltage: 120V AC; Contactor Style: HVACR Definite Purpose Contactor; Mounting Style: Through Panel; Terminal Connection Type: Box Lugs; Maximum Voltage Rating: 600V AC; Phase: Three; Main Pole Contact Form: 3NO.
DAYTON Definite Purpose Magnetic Contactor: 2 Poles, 208-240V AC, 40 A, Non-Reversing (MPN 6GNV0). Key specifications — Brand: DAYTON; Coil Voltage: 208/240V AC; Contactor Style: HVACR Definite Purpose Contactor; Mounting Style: Through Panel; Terminal Connection Type: Box Lugs; Maximum Voltage Rating: 600V AC; Phase: Single; Main Pole Contact Form: 2NO.
Dayton
DAYTON Definite Purpose Magnetic Contactor: 2 Poles, 208-240V AC, 40 A, Non-Reversing (MPN 6GNV0). Key specifications — Brand: DAYTON; Coil Voltage: 208/240V AC; Contactor Style: HVACR Definite Purpose Contactor; Mounting Style: Through Panel; Terminal Connection Type: Box Lugs; Maximum Voltage Rating: 600V AC; Phase: Single; Main Pole Contact Form: 2NO.
DAYTON Definite Purpose Magnetic Contactor: 3 Poles, 24V AC, 63 A, Non-Reversing (MPN 783XZ0). Key specifications — Brand: DAYTON; Coil Voltage: 24V AC; Contactor Style: HVACR Definite Purpose Contactor; Mounting Style: Through Panel; Terminal Connection Type: Box Lugs; Maximum Voltage Rating: 600V AC; Phase: Three; Main Pole Contact Form: 3NO.
Dayton
DAYTON Definite Purpose Magnetic Contactor: 3 Poles, 24V AC, 63 A, Non-Reversing (MPN 783XZ0). Key specifications — Brand: DAYTON; Coil Voltage: 24V AC; Contactor Style: HVACR Definite Purpose Contactor; Mounting Style: Through Panel; Terminal Connection Type: Box Lugs; Maximum Voltage Rating: 600V AC; Phase: Three; Main Pole Contact Form: 3NO.
DAYTON Definite Purpose Magnetic Contactor: 1 + N Poles, 24V AC, 25 A, Non-Reversing (MPN 6GNP3). Key specifications — Brand: DAYTON; Coil Voltage: 24V AC; Contactor Style: HVACR Definite Purpose Contactor; Mounting Style: Through Panel; Terminal Connection Type: Screw Terminals; Maximum Voltage Rating: 600V AC; Phase: Single; Main Pole Contact Form: 1NO.
Dayton
DAYTON Definite Purpose Magnetic Contactor: 1 + N Poles, 24V AC, 25 A, Non-Reversing (MPN 6GNP3). Key specifications — Brand: DAYTON; Coil Voltage: 24V AC; Contactor Style: HVACR Definite Purpose Contactor; Mounting Style: Through Panel; Terminal Connection Type: Screw Terminals; Maximum Voltage Rating: 600V AC; Phase: Single; Main Pole Contact Form: 1NO.
DAYTON Definite Purpose Magnetic Contactor: 2 Poles, 208-240V AC, 25 A, Non-Reversing (MPN 6GNY8). Key specifications — Brand: DAYTON; Coil Voltage: 208/240V AC; Contactor Style: HVACR Definite Purpose Contactor; Mounting Style: Through Panel; Terminal Connection Type: Screw Terminals; Maximum Voltage Rating: 600V AC; Phase: Single; Main Pole Contact Form: 2NO.
Dayton
DAYTON Definite Purpose Magnetic Contactor: 2 Poles, 208-240V AC, 25 A, Non-Reversing (MPN 6GNY8). Key specifications — Brand: DAYTON; Coil Voltage: 208/240V AC; Contactor Style: HVACR Definite Purpose Contactor; Mounting Style: Through Panel; Terminal Connection Type: Screw Terminals; Maximum Voltage Rating: 600V AC; Phase: Single; Main Pole Contact Form: 2NO.
DAYTON Definite Purpose Magnetic Contactor: 1 + N Poles, 120V AC, 20 A, Non-Reversing (MPN 6GNZ4). Key specifications — Brand: DAYTON; Coil Voltage: 120V AC; Contactor Style: HVACR Definite Purpose Contactor; Mounting Style: Through Panel; Terminal Connection Type: Screw Terminals; Maximum Voltage Rating: 600V AC; Phase: Single; Main Pole Contact Form: 1NO.
Dayton
DAYTON Definite Purpose Magnetic Contactor: 1 + N Poles, 120V AC, 20 A, Non-Reversing (MPN 6GNZ4). Key specifications — Brand: DAYTON; Coil Voltage: 120V AC; Contactor Style: HVACR Definite Purpose Contactor; Mounting Style: Through Panel; Terminal Connection Type: Screw Terminals; Maximum Voltage Rating: 600V AC; Phase: Single; Main Pole Contact Form: 1NO.
DAYTON Definite Purpose Magnetic Contactor: 2 Poles, 24V AC, 20 A, Non-Reversing (MPN 6GNZ1). Key specifications — Brand: DAYTON; Coil Voltage: 24V AC; Contactor Style: HVACR Definite Purpose Contactor; Mounting Style: Through Panel; Terminal Connection Type: Screw Terminals; Maximum Voltage Rating: 600V AC; Phase: Single; Main Pole Contact Form: 2NO.
Dayton
DAYTON Definite Purpose Magnetic Contactor: 2 Poles, 24V AC, 20 A, Non-Reversing (MPN 6GNZ1). Key specifications — Brand: DAYTON; Coil Voltage: 24V AC; Contactor Style: HVACR Definite Purpose Contactor; Mounting Style: Through Panel; Terminal Connection Type: Screw Terminals; Maximum Voltage Rating: 600V AC; Phase: Single; Main Pole Contact Form: 2NO.
DAYTON Definite Purpose Magnetic Contactor: 2 Poles, 24V AC, 30 A, Non-Reversing (MPN 6GNY4). Key specifications — Brand: DAYTON; Coil Voltage: 24V AC; Contactor Style: HVACR Definite Purpose Contactor; Mounting Style: Through Panel; Terminal Connection Type: Screw Terminals; Maximum Voltage Rating: 600V AC; Phase: Single; Main Pole Contact Form: 2NO.
Dayton
DAYTON Definite Purpose Magnetic Contactor: 2 Poles, 24V AC, 30 A, Non-Reversing (MPN 6GNY4). Key specifications — Brand: DAYTON; Coil Voltage: 24V AC; Contactor Style: HVACR Definite Purpose Contactor; Mounting Style: Through Panel; Terminal Connection Type: Screw Terminals; Maximum Voltage Rating: 600V AC; Phase: Single; Main Pole Contact Form: 2NO.