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Siemens Definite Purpose Contactor: 3 Poles, 120V AC, 50 A, Non-Reversing - Non-Reversing Definite Purpose Contactors
SiemensNon-Reversing Definite Purpose Contactors

Siemens Definite Purpose Contactor: 3 Poles, 120V AC, 50 A, Non-Reversing

The SIEMENS Definite Purpose Contactor is a non-reversing, three-pole contactor from the 42 Series, featuring a 3NO main pole contact form and a maximum voltage rating of 600V AC. It operates with a 110/110-120V AC…

SKU 3G-OTH-43160

Brand
Siemens
Item
Definite Purpose Contactor: 3 Poles, 120V AC, 50 A, Non-Reversing
Category
Non-Reversing Definite Purpose Contactors
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
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Technical Specifications

Siemens
Manufacturer Part Number
42DF35AF
Series
42 Series
Type
50 A, Non-Reversing, Std Contactor Frame Size
AC
120V
Phase
Three
Coil Voltage
110/110-120V AC
Mounting Style
Surface
Main Pole Contact Form
3NO
Maximum Voltage Rating
600V AC
Terminal Connection Type
Quick Disconnect and Screw/Box Lug

Technical Documents

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

Product Description

The SIEMENS Definite Purpose Contactor is a non-reversing, three-pole contactor from the 42 Series, featuring a 3NO main pole contact form and a maximum voltage rating of 600V AC. It operates with a 110/110-120V AC coil voltage and supports three-phase applications. The contactor offers surface mounting and terminal connections via quick disconnect and screw/box lug.

Frequently Asked Questions

What is the SIEMENS 42DF35AF definite purpose contactor used for?

The SIEMENS 42DF35AF definite purpose contactor is used for switching three-phase loads in HVAC, refrigeration, and industrial equipment. It handles motor starting, lighting, and resistive heating circuits up to 600V AC. Its 50 A rating and 3NO contact form make it suitable for high-cycle applications requiring reliable on/off control.

What are the specifications of the SIEMENS 42DF35AF contactor?

The SIEMENS 42DF35AF is a 3-pole, non-reversing definite purpose contactor with a 50 A rating and 600V AC maximum voltage. It has a 110/110-120V AC coil voltage, 3NO main pole contact form, surface mounting, and terminal connections via quick disconnect and screw/box lug. It is part of the 42 Series and supports three-phase applications.

Where to buy the SIEMENS 42DF35AF contactor worldwide?

You can source the SIEMENS 42DF35AF contactor worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time. 3G Electric supplies genuine SIEMENS components for industrial applications.

How to install the SIEMENS 42DF35AF definite purpose contactor?

Mount the SIEMENS 42DF35AF contactor on a clean, dry surface using the provided slots. Connect power and load wires to the quick-disconnect or screw/box lug terminals per the wiring diagram. Ensure coil voltage matches the 110-120V AC supply. Torque terminals to manufacturer specifications and verify proper contact operation before energizing.

Used in

Common applications for Siemens
District cooling plants — LME73 + RWF55 for condenser-water modulation
Inflight catering and food-processing steam boilers — LMG22 with SQN90 air-fuel cross-damper
Hospital steam-plant redundancy — LME41 with QRA2 UV flame detection for dual-fuel boilers
Semiconductor fab process heat — LME23 and SKP55 gas valves on hot-oil heater skids
Container-terminal reefer-deck heating — LMG22 retrofit onto legacy burner racks

Siemens Products

3G Electric supplies Siemens non-reversing definite purpose contactors. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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