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Siemens Definite Purpose Magnetic Contactor: 2 Poles, 480V AC, 40 A - Non-Reversing Definite Purpose Contactors
SiemensNon-Reversing Definite Purpose Contactors

Siemens Definite Purpose Magnetic Contactor: 2 Poles, 480V AC, 40 A

The SIEMENS 42 Series Definite Purpose Magnetic Contactor is a non-reversing, 2-pole contactor with a 2NO main pole contact form, rated for single-phase operation up to 600V AC. It features a coil voltage of…

SKU 3G-OTH-44184

Brand
Siemens
Item
Definite Purpose Magnetic Contactor: 2 Poles, 480V AC, 40 A
Category
Non-Reversing Definite Purpose Contactors
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Technical Specifications

Siemens
Manufacturer Part Number
45GG20AH
Series
42 Series
Type
40 A, Non-Reversing
AC
480V
Phase
Single
Coil Voltage
380-440/440-480V AC
Mounting Style
Surface
Contactor Style
HVACR Definite Purpose Contactor
Main Pole Contact Form
2NO
Maximum Voltage Rating
600V AC
Terminal Connection Type
Screw Terminals
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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SIEMENS 42 Series Definite Purpose Magnetic Contactor is a non-reversing, 2-pole contactor with a 2NO main pole contact form, rated for single-phase operation up to 600V AC. It features a coil voltage of 380-440/440-480V AC, surface mounting, and screw terminals. This HVACR definite purpose contactor is designed for industrial equipment applications.

Frequently Asked Questions

What is the SIEMENS 45GG20AH definite purpose contactor used for?

The SIEMENS 45GG20AH is a 2-pole, non-reversing definite purpose contactor used in HVACR and industrial equipment to switch single-phase loads up to 40 A at 480V AC. It is designed for reliable on/off control of compressors, fans, and pumps in commercial and industrial applications.

What are the specifications of the SIEMENS 45GG20AH contactor?

The SIEMENS 45GG20AH is a 42 Series, 2-pole, non-reversing definite purpose contactor rated 40 A at 480V AC, with a coil voltage of 380-440/440-480V AC. It has a maximum voltage rating of 600V AC, surface mounting, and screw terminals. Main pole contact form is 2NO, single-phase operation.

Where to buy the SIEMENS 45GG20AH contactor worldwide?

3G Electric supplies the SIEMENS 45GG20AH definite purpose contactor worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for a quote and lead time on this HVACR contactor.

How to install the SIEMENS 45GG20AH definite purpose contactor?

Mount the SIEMENS 45GG20AH on a flat surface using the screw terminals. Ensure coil voltage matches your control circuit (380-480V AC). Wire the main poles for single-phase load up to 40 A. Follow standard electrical safety practices and consult the manufacturer's wiring diagram for proper installation.

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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SIEMENS Definite Purpose Contactor: 3 Poles, 120V AC, 50 A, Non-Reversing, Std Contactor Frame Size (MPN 42DF35AF). Key specifications — Brand: SIEMENS; Coil Voltage: 110/110-120V AC; Mounting Style: Surface; Terminal Connection Type: Quick Disconnect and Screw/Box Lug; Maximum Voltage Rating: 600V AC; Series: 42 Series; Phase: Three; Main Pole Contact Form: 3NO.
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SIEMENS Definite Purpose Magnetic Contactor: 3 Poles, 480V AC, 75 A, Non-Reversing (MPN 42FE35AH). Key specifications — Brand: SIEMENS; Coil Voltage: 380-440/440-480V AC; Contactor Style: HVACR Definite Purpose Contactor; Mounting Style: Surface; Terminal Connection Type: Screw Terminals; Maximum Voltage Rating: 600V AC; Series: 42 Series; Phase: Three.
Siemens
SIEMENS Definite Purpose Magnetic Contactor: 3 Poles, 480V AC, 75 A, Non-Reversing (MPN 42FE35AH). Key specifications — Brand: SIEMENS; Coil Voltage: 380-440/440-480V AC; Contactor Style: HVACR Definite Purpose Contactor; Mounting Style: Surface; Terminal Connection Type: Screw Terminals; Maximum Voltage Rating: 600V AC; Series: 42 Series; Phase: Three.
SIEMENS Definite Purpose Contactor: 2 Poles, 208-240V AC, 40 A, Non-Reversing (MPN 42CF15AG). Key specifications — Brand: SIEMENS; Coil Voltage: 190-220/208-240V AC; Mounting Style: Surface; Terminal Connection Type: Quick Disconnect and Screw/Box Lug; Maximum Voltage Rating: 600V AC; Series: 42 Series; Phase: Single; Main Pole Contact Form: 2NO.
Siemens
SIEMENS Definite Purpose Contactor: 2 Poles, 208-240V AC, 40 A, Non-Reversing (MPN 42CF15AG). Key specifications — Brand: SIEMENS; Coil Voltage: 190-220/208-240V AC; Mounting Style: Surface; Terminal Connection Type: Quick Disconnect and Screw/Box Lug; Maximum Voltage Rating: 600V AC; Series: 42 Series; Phase: Single; Main Pole Contact Form: 2NO.