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Siemens 42 Series Non-Reversing Definite Purpose Contactor - Non-Reversing Definite Purpose Contactors
SiemensNon-Reversing Definite Purpose Contactors

Siemens 42 Series Non-Reversing Definite Purpose Contactor

The SIEMENS Definite Purpose Contactor is a non-reversing, three-pole contactor from the 42 Series, designed for surface mounting. It features a 110/110-120V AC coil, a 3NO main pole contact form, and a maximum…

SKU 3G-OTH-43701

Brand
Siemens
Item
42 Series Non-Reversing Definite Purpose Contactor
Part Number
42BF35AF
Category
Non-Reversing Definite Purpose Contactors
Available to Order
Also known as:42BF35AFSiemens
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

Siemens
Manufacturer Part Number
42BF35AF
Series
42
Type
30 A, Non-Reversing, Std Contactor Frame Size
AC
120V
Frequency
50/60
Mfr. Model
42BF35AF
Coil Voltage
110/110-120V
Overall Depth
2.87
Overall Width
2.38
Mounting Style
Surface
Locked Rotor Load
120 A @ 600V; 150 A @ 480V; 180 A @
NEMA Enclosure Rating
No
Main Pole Contact Form
3NO
Maximum Voltage Rating
600V
Terminal Connection Type
Quick Disconnect and Screw/Box Lug
Nominal Coil Voltage @ 60Hz
120V
Full Load Current - Inductive
30
Full Load Current - Resistive
40
Maximum Operating Temperature
158
Mounting Hole Distance - Width
1.98
Mechanical Operating Durability
250,000
Auxiliary Contact Module Capacity
4
Horsepower @ Three Phase - 208V AC
1/2
Horsepower @ Three Phase - 240V AC
7-1/2
Horsepower @ Three Phase - 480V AC
10
Horsepower @ Three Phase - 600V AC
15
Horsepower @ Single Phase - 240V AC
3

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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, designed for surface mounting. It features a 110/110-120V AC coil, a 3NO main pole contact form, and a maximum voltage rating of 600V AC. The unit supports quick disconnect and screw/box lug terminal connections, making it suitable for three-phase applications.

Frequently Asked Questions

What is the SIEMENS 42BF35AF definite purpose contactor used for?

The SIEMENS 42BF35AF definite purpose contactor is used for switching three-phase motor loads in HVAC, refrigeration, and industrial equipment. Its 30 A rating and 600V AC maximum voltage make it suitable for controlling compressors, fans, and pumps in commercial and light industrial applications.

What are the specifications of the SIEMENS 42BF35AF contactor?

The SIEMENS 42BF35AF is a 3-pole, non-reversing definite purpose contactor from the 42 Series. It has a 110/110-120V AC coil, 30 A rating, 600V AC maximum voltage, 3NO main pole contact form, surface mounting, and quick disconnect plus screw/box lug terminals. It is designed for three-phase applications.

Where to buy the SIEMENS 42BF35AF contactor worldwide?

You can source the SIEMENS 42BF35AF contactor 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; we provide competitive pricing and reliable supply for this Siemens 42 Series component.

How to install the SIEMENS 42BF35AF definite purpose contactor?

Mount the SIEMENS 42BF35AF on a flat surface using the provided slots. Connect three-phase power to the line-side terminals and the load to the load-side terminals using quick disconnects or screw/box lugs. Apply 110-120V AC to the coil terminals. Ensure all connections are torqued per Siemens specifications and verify proper operation before energizing the system.

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
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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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Three-pole non-reversing definite purpose contactor from the 42 Series. Features a 24V AC coil, 3NO main pole contact form, and a maximum voltage rating of 600V AC. Supports surface mounting with quick disconnect and screw/box lug terminals. Suitable for switching electrical loads in HVAC, refrigeration, and industrial machinery applications
Single-phase definite purpose contactor with 2 poles and 2 normally open main contacts. Rated 30 A, coil voltage 110/110-120V AC, maximum 600V AC. Surface mount with quick disconnect and screw/box lug terminals. Used for switching loads such as compressors, fans, and pumps in HVAC and refrigeration equipment
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Single-phase definite purpose contactor with 2 poles and 2 normally open main contacts. Rated 30 A, coil voltage 110/110-120V AC, maximum 600V AC. Surface mount with quick disconnect and screw/box lug terminals. Used for switching loads such as compressors, fans, and pumps in HVAC and refrigeration equipment

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