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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 Magnetic Contactor (MPN 45GG10AHA) is a non-reversing, three-phase contactor from the 42 Series, designed for HVACR applications. It features a 1NO main pole contact form, a coil voltage…

SKU 3G-OTH-43718

Brand
Siemens
Item
42 Series Non-Reversing Definite Purpose Contactor
Category
Non-Reversing Definite Purpose Contactors
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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
45GG10AHA
Series
42 Series
Type
40 A, Non-Reversing
AC
480V
Phase
Three
Coil Voltage
380-440/440-480V AC
Mounting Style
Surface
Contactor Style
HVACR Definite Purpose Contactor
Main Pole Contact Form
1NO
Maximum Voltage Rating
600V AC
Terminal Connection Type
Screw Terminals

Technical Documents

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

Product Description

The SIEMENS Definite Purpose Magnetic Contactor (MPN 45GG10AHA) is a non-reversing, three-phase contactor from the 42 Series, designed for HVACR applications. It features a 1NO main pole contact form, a coil voltage of 380-440/440-480V AC, a maximum voltage rating of 600V AC, and a 40 A rating. This surface-mount contactor uses screw terminals for connection.

Frequently Asked Questions

What is the SIEMENS 45GG10AHA definite purpose contactor used for?

The SIEMENS 45GG10AHA is a non-reversing definite purpose contactor designed for HVACR applications such as compressors, fan motors, and refrigeration units. It switches three-phase loads up to 40 A at 480V AC, with a maximum voltage rating of 600V AC.

What are the specifications of the SIEMENS 45GG10AHA contactor?

The SIEMENS 45GG10AHA is a three-phase, 42 Series contactor with a 1NO main pole contact form. Coil voltage is 380-440/440-480V AC. It is rated 40 A, surface-mounted, and uses screw terminals. Maximum voltage rating is 600V AC.

Where to buy the SIEMENS 45GG10AHA contactor worldwide?

You can source the SIEMENS 45GG10AHA 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.

How to install the SIEMENS 45GG10AHA definite purpose contactor?

Mount the SIEMENS 45GG10AHA on a clean, dry surface using the screw terminals for line and load connections. Ensure coil voltage matches your control circuit (380-440/440-480V AC). Follow standard HVACR wiring practices and torque specifications for safe operation.

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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Compatible alternatives & equivalents

Cross-referenced by specification & description
SIEMENS Definite Purpose Magnetic Contactor: 2 Poles, 480V AC, 40 A, Non-Reversing (MPN 45GG20AH)
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SIEMENS Definite Purpose Magnetic Contactor: 2 Poles, 480V AC, 40 A, Non-Reversing (MPN 45GG20AH)
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SIEMENS Definite Purpose Magnetic Contactor: 1 + N Poles, 120V AC, 40 A, Non-Reversing (MPN 45GG10AFA)
Non-reversing definite purpose contactor for HVACR applications such as controlling compressors, fans, and pumps. Features 1 normally open main pole, 40 A rating, 240/277V AC coil voltage, and 600V AC maximum voltage. Three-phase operation with screw terminals for surface mounting
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Non-reversing definite purpose contactor for HVACR applications such as controlling compressors, fans, and pumps. Features 1 normally open main pole, 40 A rating, 240/277V AC coil voltage, and 600V AC maximum voltage. Three-phase operation with screw terminals for surface mounting
SIEMENS Definite Purpose Magnetic Contactor: 3 Poles, 480V AC, 75 A, Non-Reversing (MPN 42FE35AH)
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SIEMENS Definite Purpose Magnetic Contactor: 3 Poles, 480V AC, 75 A, Non-Reversing (MPN 42FE35AH)
Three-phase, non-reversing definite purpose contactor with 3 normally open main poles. Rated 90 A at 480V AC, maximum 600V AC. Coil voltage 380-440/440-480V AC. Surface mount with screw terminals. Suitable for switching motors, compressors, fans, and pumps in HVACR and industrial equipment
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Three-phase, non-reversing definite purpose contactor with 3 normally open main poles. Rated 90 A at 480V AC, maximum 600V AC. Coil voltage 380-440/440-480V AC. Surface mount with screw terminals. Suitable for switching motors, compressors, fans, and pumps in HVACR and industrial equipment
SIEMENS Definite Purpose Magnetic Contactor: 1 + N Poles, 24V AC, 40 A, Non-Reversing (MPN 45GG10AJA)
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SIEMENS Definite Purpose Magnetic Contactor: 1 + N Poles, 24V AC, 40 A, Non-Reversing (MPN 45GG10AJA)

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