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

EATON Definite Purpose Magnetic Contactor: 3 Poles, 208-240V AC, 40 A - Non-Reversing Definite Purpose Contactors
EATONNon-Reversing Definite Purpose Contactors

EATON Definite Purpose Magnetic Contactor: 3 Poles, 208-240V AC, 40 A

The EATON C25 Series Definite Purpose Magnetic Contactor (MPN C25DNF340B) is a three-pole, non-reversing HVACR definite purpose contactor with a 3NO main pole contact form. It features a 208-240V AC coil, a maximum…

SKU 3G-OTH-42910

Brand
EATON
Item
Definite Purpose Magnetic Contactor: 3 Poles, 208-240V AC, 40 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

EATON
Manufacturer Part Number
C25DNF340B
Series
C25 Series
Type
40 A, Non-Reversing
AC
208-240V
Phase
Three
Frame Size
D
Coil Voltage
208-240V AC
Contactor Style
HVACR Definite Purpose Contactor
Main Pole Contact Form
3NO
Maximum Voltage Rating
690V AC
Terminal Connection Type
Quick-Disconnect Terminals
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

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

Product Description

The EATON C25 Series Definite Purpose Magnetic Contactor (MPN C25DNF340B) is a three-pole, non-reversing HVACR definite purpose contactor with a 3NO main pole contact form. It features a 208-240V AC coil, a maximum voltage rating of 690V AC, and quick-disconnect terminals in a Frame Size D. This three-phase contactor is designed for industrial equipment applications requiring reliable switching.

Frequently Asked Questions

What is the EATON C25DNF340B definite purpose contactor used for?

The EATON C25DNF340B is a three-pole, non-reversing definite purpose contactor designed for HVACR and industrial equipment that requires reliable switching of three-phase loads up to 40 A. It is commonly applied in compressors, fan motors, and pump controls where a 208-240V AC coil and quick-disconnect terminals are specified.

What are the specifications of the EATON C25DNF340B contactor?

The EATON C25DNF340B is a Frame Size D, three-pole contactor with a 208-240V AC coil, 40 A rating, and maximum voltage rating of 690V AC. It features a 3NO main pole contact form, quick-disconnect terminals, and is part of the C25 Series for HVACR definite purpose applications.

Where to buy the EATON C25DNF340B contactor worldwide?

3G Electric supplies the EATON C25DNF340B definite purpose contactor 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 C25 Series three-pole contactor.

How to install the EATON C25DNF340B definite purpose contactor?

Mount the EATON C25DNF340B on a clean, flat surface using the frame's mounting holes. Connect three-phase power to the line-side quick-disconnect terminals and the load to the load-side terminals. Ensure the 208-240V AC coil voltage matches your control circuit. Follow NEC and local codes for wire sizing and overcurrent protection.

Used in

Common applications for EATON
Industrial control panels — Eaton M22 flush push buttons for momentary machine start/stop commands
Motor control centers — Eaton NEMA reversing starters with electronic overloads for conveyor belt direction control
HVAC systems — Eaton definite purpose starters with thermal overloads for compressor and fan motor protection
Process automation — Eaton SL7 tower lights with IP66 bases for visual status indication in wet environments
Machine tool signaling — Eaton 10250T LED pilot lights with push-to-test for operator panel status lamps
Access control — Eaton M22 keyed selector switches for equipment mode selection in secured areas

EATON Products

3G Electric supplies EATON 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
EATON Definite Purpose Magnetic Contactor: 3 Poles, 208-240V AC, 25 A, Non-Reversing (MPN C25DND325B). Key specifications — Brand: EATON; Coil Voltage: 208-240V AC; Contactor Style: HVACR Definite Purpose Contactor; Frame Size: D; Terminal Connection Type: Quick-Disconnect Terminals; Maximum Voltage Rating: 690V AC; Series: C25 Series; Phase: Three.
EATON
EATON Definite Purpose Magnetic Contactor: 3 Poles, 208-240V AC, 25 A, Non-Reversing (MPN C25DND325B). Key specifications — Brand: EATON; Coil Voltage: 208-240V AC; Contactor Style: HVACR Definite Purpose Contactor; Frame Size: D; Terminal Connection Type: Quick-Disconnect Terminals; Maximum Voltage Rating: 690V AC; Series: C25 Series; Phase: Three.
EATON Definite Purpose Magnetic Contactor: 3 Poles, 120V AC, 40 A, Non-Reversing (MPN C25DNF340A). Key specifications — Brand: EATON; Coil Voltage: 110-120V AC; Contactor Style: HVACR Definite Purpose Contactor; Frame Size: D; Terminal Connection Type: Quick-Disconnect Terminals; Maximum Voltage Rating: 690V AC; Series: C25 Series; Phase: Three.
EATON
EATON Definite Purpose Magnetic Contactor: 3 Poles, 120V AC, 40 A, Non-Reversing (MPN C25DNF340A). Key specifications — Brand: EATON; Coil Voltage: 110-120V AC; Contactor Style: HVACR Definite Purpose Contactor; Frame Size: D; Terminal Connection Type: Quick-Disconnect Terminals; Maximum Voltage Rating: 690V AC; Series: C25 Series; Phase: Three.
EATON Definite Purpose Magnetic Contactor: 3 Poles, 208-240V AC, 30 A, Non-Reversing (MPN C25DND330B). Key specifications — Brand: EATON; Coil Voltage: 208-240V AC; Contactor Style: HVACR Definite Purpose Contactor; Frame Size: D; Terminal Connection Type: Quick-Disconnect Terminals; Maximum Voltage Rating: 690V AC; Series: C25 Series; Phase: Three.
EATON
EATON Definite Purpose Magnetic Contactor: 3 Poles, 208-240V AC, 30 A, Non-Reversing (MPN C25DND330B). Key specifications — Brand: EATON; Coil Voltage: 208-240V AC; Contactor Style: HVACR Definite Purpose Contactor; Frame Size: D; Terminal Connection Type: Quick-Disconnect Terminals; Maximum Voltage Rating: 690V AC; Series: C25 Series; Phase: Three.
EATON Definite Purpose Magnetic Contactor: 3 Poles, 208-240V AC, 50 A, Non-Reversing (MPN C25DNJ350B). Key specifications — Brand: EATON; Coil Voltage: 208-240V AC; Contactor Style: HVACR Definite Purpose Contactor; Frame Size: D; Terminal Connection Type: Box Lugs; Maximum Voltage Rating: 690V AC; Series: C25 Series; Phase: Three.
EATON
EATON Definite Purpose Magnetic Contactor: 3 Poles, 208-240V AC, 50 A, Non-Reversing (MPN C25DNJ350B). Key specifications — Brand: EATON; Coil Voltage: 208-240V AC; Contactor Style: HVACR Definite Purpose Contactor; Frame Size: D; Terminal Connection Type: Box Lugs; Maximum Voltage Rating: 690V AC; Series: C25 Series; Phase: Three.
EATON Definite Purpose Magnetic Contactor: 2 Poles, 208-240V AC, 20 A, Non-Reversing (MPN C25BNB220B). Key specifications — Brand: EATON; Coil Voltage: 208-240V AC; Contactor Style: HVACR Definite Purpose Contactor; Frame Size: B; Terminal Connection Type: Quick-Disconnect Terminals; Maximum Voltage Rating: 690V AC; Series: C25 Series; Phase: Single.
EATON
EATON Definite Purpose Magnetic Contactor: 2 Poles, 208-240V AC, 20 A, Non-Reversing (MPN C25BNB220B). Key specifications — Brand: EATON; Coil Voltage: 208-240V AC; Contactor Style: HVACR Definite Purpose Contactor; Frame Size: B; Terminal Connection Type: Quick-Disconnect Terminals; Maximum Voltage Rating: 690V AC; Series: C25 Series; Phase: Single.
EATON Definite Purpose Magnetic Contactor: 2 Poles, 208-240V AC, 40 A, Non-Reversing (MPN C25BNB240B). Key specifications — Brand: EATON; Coil Voltage: 208-240V AC; Contactor Style: HVACR Definite Purpose Contactor; Frame Size: B; Terminal Connection Type: Quick-Disconnect Terminals; Maximum Voltage Rating: 690V AC; Series: C25 Series; Phase: Single.
EATON
EATON Definite Purpose Magnetic Contactor: 2 Poles, 208-240V AC, 40 A, Non-Reversing (MPN C25BNB240B). Key specifications — Brand: EATON; Coil Voltage: 208-240V AC; Contactor Style: HVACR Definite Purpose Contactor; Frame Size: B; Terminal Connection Type: Quick-Disconnect Terminals; Maximum Voltage Rating: 690V AC; Series: C25 Series; Phase: Single.

More from EATON

View all EATON parts
EATON Definite Purpose Magnetic Contactor: 3 Poles, 120V AC, 50 A, Non-Reversing (MPN C25DNJ350A). Key specifications — Brand: EATON; Coil Voltage: 110-120V AC; Contactor Style: HVACR Definite Purpose Contactor; Frame Size: D; Terminal Connection Type: Box Lugs; Maximum Voltage Rating: 690V AC; Series: C25 Series; Phase: Three.
EATON
EATON Definite Purpose Magnetic Contactor: 3 Poles, 120V AC, 50 A, Non-Reversing (MPN C25DNJ350A). Key specifications — Brand: EATON; Coil Voltage: 110-120V AC; Contactor Style: HVACR Definite Purpose Contactor; Frame Size: D; Terminal Connection Type: Box Lugs; Maximum Voltage Rating: 690V AC; Series: C25 Series; Phase: Three.
EATON
EATON
EATON Definite Purpose Magnetic Contactor: 3 Poles, 208-240V AC, 60 A, Non-Reversing (MPN C25FNF360B). Key specifications — Brand: EATON; Coil Voltage: 208-240V AC; Contactor Style: HVACR Definite Purpose Contactor; Frame Size: F; Terminal Connection Type: Quick-Disconnect Terminals; Maximum Voltage Rating: 690V AC; Series: C25 Series; Phase: Three.
EATON
EATON
EATON Definite Purpose Magnetic Contactor: 2 Poles, 120V AC, 20 A, Non-Reversing (MPN C25BNB220A). Key specifications — Brand: EATON; Coil Voltage: 110-120V AC; Contactor Style: HVACR Definite Purpose Contactor; Frame Size: B; Terminal Connection Type: Quick-Disconnect Terminals; Maximum Voltage Rating: 690V AC; Series: C25 Series; Phase: Single.
EATON Definite Purpose Magnetic Contactor: 1 Poles, 120V AC, 30 A, Non-Reversing (MPN C25ANB130A). Key specifications — Brand: EATON; Coil Voltage: 110-120V AC; Contactor Style: HVACR Definite Purpose Contactor; Frame Size: A; Terminal Connection Type: Quick-Disconnect Terminals; Maximum Voltage Rating: 690V AC; Series: C25 Series; Phase: Single.
EATON
EATON Definite Purpose Magnetic Contactor: 1 Poles, 120V AC, 30 A, Non-Reversing (MPN C25ANB130A). Key specifications — Brand: EATON; Coil Voltage: 110-120V AC; Contactor Style: HVACR Definite Purpose Contactor; Frame Size: A; Terminal Connection Type: Quick-Disconnect Terminals; Maximum Voltage Rating: 690V AC; Series: C25 Series; Phase: Single.
EATON Definite Purpose Magnetic Contactor: 4 Poles, 120V AC, 30 A, Non-Reversing (MPN C25END430A). Key specifications — Brand: EATON; Coil Voltage: 110-120V AC; Contactor Style: HVACR Definite Purpose Contactor; Frame Size: E; Terminal Connection Type: Quick-Disconnect Terminals; Maximum Voltage Rating: 690V AC; Series: C25 Series; Phase: Three.
EATON
EATON Definite Purpose Magnetic Contactor: 4 Poles, 120V AC, 30 A, Non-Reversing (MPN C25END430A). Key specifications — Brand: EATON; Coil Voltage: 110-120V AC; Contactor Style: HVACR Definite Purpose Contactor; Frame Size: E; Terminal Connection Type: Quick-Disconnect Terminals; Maximum Voltage Rating: 690V AC; Series: C25 Series; Phase: Three.
EATON Definite Purpose Magnetic Contactor: 4 Poles, 208-240V AC, 25 A, Non-Reversing (MPN C25END425B). Key specifications — Brand: EATON; Coil Voltage: 208-240V AC; Contactor Style: HVACR Definite Purpose Contactor; Frame Size: E; Terminal Connection Type: Quick-Disconnect Terminals; Maximum Voltage Rating: 690V AC; Series: C25 Series; Phase: Three.
EATON
EATON Definite Purpose Magnetic Contactor: 4 Poles, 208-240V AC, 25 A, Non-Reversing (MPN C25END425B). Key specifications — Brand: EATON; Coil Voltage: 208-240V AC; Contactor Style: HVACR Definite Purpose Contactor; Frame Size: E; Terminal Connection Type: Quick-Disconnect Terminals; Maximum Voltage Rating: 690V AC; Series: C25 Series; Phase: Three.
EATON Definite Purpose Magnetic Contactor: 1 + N Poles, 120V AC, 40 A, Non-Reversing (MPN C25CNB140A). Key specifications — Brand: EATON; Coil Voltage: 110-120V AC; Contactor Style: HVACR Definite Purpose Contactor; Frame Size: C; Terminal Connection Type: Quick-Disconnect Terminals; Maximum Voltage Rating: 690V AC; Series: C25 Series; Phase: Single.
EATON
EATON Definite Purpose Magnetic Contactor: 1 + N Poles, 120V AC, 40 A, Non-Reversing (MPN C25CNB140A). Key specifications — Brand: EATON; Coil Voltage: 110-120V AC; Contactor Style: HVACR Definite Purpose Contactor; Frame Size: C; Terminal Connection Type: Quick-Disconnect Terminals; Maximum Voltage Rating: 690V AC; Series: C25 Series; Phase: Single.
EATON Definite Purpose Magnetic Contactor: 1 + N Poles, 208-240V AC, 30 A, Non-Reversing (MPN C25CNB130B). Key specifications — Brand: EATON; Coil Voltage: 208-240V AC; Contactor Style: HVACR Definite Purpose Contactor; Frame Size: C; Terminal Connection Type: Quick-Disconnect Terminals; Maximum Voltage Rating: 690V AC; Series: C25 Series; Phase: Single.
EATON
EATON Definite Purpose Magnetic Contactor: 1 + N Poles, 208-240V AC, 30 A, Non-Reversing (MPN C25CNB130B). Key specifications — Brand: EATON; Coil Voltage: 208-240V AC; Contactor Style: HVACR Definite Purpose Contactor; Frame Size: C; Terminal Connection Type: Quick-Disconnect Terminals; Maximum Voltage Rating: 690V AC; Series: C25 Series; Phase: Single.