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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 (SKU 45GG10AJA, MPN 45GG10AJA) is a non-reversing, single-phase contactor from the 42 Series with a 1NO main pole contact form. It features a 24V AC coil, a maximum…

SKU 3G-OTH-42573

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
45GG10AJA
Series
42 Series
Type
40 A, Non-Reversing
AC
24V
Phase
Single
Coil Voltage
24V 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

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

Product Description

The SIEMENS Definite Purpose Magnetic Contactor (SKU 45GG10AJA, MPN 45GG10AJA) is a non-reversing, single-phase contactor from the 42 Series with a 1NO main pole contact form. It features a 24V AC coil, a maximum voltage rating of 600V AC, and screw terminals for surface mounting. This HVACR definite purpose contactor is designed for industrial equipment applications.

Frequently Asked Questions

What is the SIEMENS 45GG10AJA definite purpose magnetic contactor used for?

The SIEMENS 45GG10AJA definite purpose magnetic contactor is used for switching HVACR equipment such as compressors, fan motors, and refrigeration units. Its 24V AC coil and 40 A rating make it suitable for single-phase industrial applications requiring reliable on/off control.

What are the specifications of the SIEMENS 45GG10AJA contactor?

The SIEMENS 45GG10AJA is a non-reversing, single-phase definite purpose contactor from the 42 Series. It has a 24V AC coil, 40 A rating, 600V AC maximum voltage, 1NO main pole contact form, screw terminals, and surface mounting. It is designed for HVACR applications.

Where to buy the SIEMENS 45GG10AJA contactor worldwide?

You can source the SIEMENS 45GG10AJA contactor worldwide through 3G Electric. As a global industrial equipment distributor, 3G Electric handles full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to install the SIEMENS 45GG10AJA definite purpose contactor?

To install the SIEMENS 45GG10AJA, mount it on a flat surface using the screw terminals. Ensure the 24V AC coil voltage matches your control circuit. Connect the line and load wires per the wiring diagram. Always de-energize the system before installation and follow local electrical codes.

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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Cross-referenced by specification & description
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
Three-pole, non-reversing definite purpose contactor rated 90 A and 600V AC maximum. Features 3NO main contacts, 24V AC coil, screw terminals, and surface mount design. Suitable for switching loads such as compressors and condenser fans in HVACR equipment
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Three-pole, non-reversing definite purpose contactor rated 90 A and 600V AC maximum. Features 3NO main contacts, 24V AC coil, screw terminals, and surface mount design. Suitable for switching loads such as compressors and condenser fans in HVACR equipment
Three-phase definite purpose contactor for HVACR and industrial equipment. Non-reversing with 1 normally open main pole. Coil voltage 190-220/208-240V AC, maximum voltage 600V AC. Surface mount with screw terminals. Rated 40 A
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Three-phase definite purpose contactor for HVACR and industrial equipment. Non-reversing with 1 normally open main pole. Coil voltage 190-220/208-240V AC, maximum voltage 600V AC. Surface mount with screw terminals. Rated 40 A
SIEMENS Definite Purpose Magnetic Contactor: 3 Poles, 24V AC, 75 A, Non-Reversing (MPN 42FE35AJ)
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SIEMENS Definite Purpose Magnetic Contactor: 3 Poles, 24V AC, 75 A, Non-Reversing (MPN 42FE35AJ)
Three-phase definite purpose contactor from the Siemens 42 Series, rated 40 A at 480V AC with a maximum voltage of 600V AC. Features a 1NO main pole contact form and dual-range coil voltage of 380-440/440-480V AC. Surface-mount design with screw terminals. Suitable for switching HVACR loads such as compressors, fan motors, and refrigeration units
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Three-phase definite purpose contactor from the Siemens 42 Series, rated 40 A at 480V AC with a maximum voltage of 600V AC. Features a 1NO main pole contact form and dual-range coil voltage of 380-440/440-480V AC. Surface-mount design with screw terminals. Suitable for switching HVACR loads such as compressors, fan motors, and refrigeration units
This Siemens definite purpose contactor is a non-reversing, three-phase unit from the 42 Series, rated 40 A with a maximum voltage of 600V AC. It features a 1NO main pole contact form and a coil voltage of 110/110-120V AC. Designed for surface mounting with screw terminals, it is commonly used in HVACR applications such as controlling compressors, fans, and pumps
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This Siemens definite purpose contactor is a non-reversing, three-phase unit from the 42 Series, rated 40 A with a maximum voltage of 600V AC. It features a 1NO main pole contact form and a coil voltage of 110/110-120V AC. Designed for surface mounting with screw terminals, it is commonly used in HVACR applications such as controlling compressors, fans, and pumps

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Three-pole non-reversing definite purpose contactor rated 40 A at 277V AC, with a maximum voltage rating of 600V AC. Coil voltage is 240/277V AC. Main pole contact form is 3NO. Terminals accept quick disconnect and screw/box lug connections. Surface mount design. Suitable for switching loads in HVAC, refrigeration, and industrial machinery
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Three-pole non-reversing definite purpose contactor rated 40 A at 277V AC, with a maximum voltage rating of 600V AC. Coil voltage is 240/277V AC. Main pole contact form is 3NO. Terminals accept quick disconnect and screw/box lug connections. Surface mount design. Suitable for switching loads in HVAC, refrigeration, and industrial machinery
Three-pole non-reversing definite purpose contactor from the Siemens 42 Series. Rated 75 A at 277V AC with a maximum voltage of 600V AC. Coil voltage 240/277V AC. Features 3NO main pole contact form and screw terminals for surface mounting. Used for switching HVACR loads such as compressors, fan motors, and refrigeration units
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Three-pole non-reversing definite purpose contactor from the Siemens 42 Series. Rated 75 A at 277V AC with a maximum voltage of 600V AC. Coil voltage 240/277V AC. Features 3NO main pole contact form and screw terminals for surface mounting. Used for switching HVACR loads such as compressors, fan motors, and refrigeration units
Three-pole, non-reversing definite purpose contactor from the 42 Series. Rated 50 A with 3NO main pole contact form and maximum voltage of 600V AC. Coil voltage is 110/110-120V AC. Surface mount with quick disconnect and screw/box lug terminals. Suitable for switching three-phase loads in HVAC, refrigeration, and industrial equipment
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Three-pole, non-reversing definite purpose contactor from the 42 Series. Rated 50 A with 3NO main pole contact form and maximum voltage of 600V AC. Coil voltage is 110/110-120V AC. Surface mount with quick disconnect and screw/box lug terminals. Suitable for switching three-phase loads in HVAC, refrigeration, and industrial equipment
Three-pole, non-reversing definite purpose contactor rated 75 A at 480V AC. Coil voltage 380-440/440-480V AC, maximum voltage 600V AC. Surface mount with screw terminals. Suitable for switching three-phase motors in HVACR systems such as compressors, fans, and pumps
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Three-pole, non-reversing definite purpose contactor rated 75 A at 480V AC. Coil voltage 380-440/440-480V AC, maximum voltage 600V AC. Surface mount with screw terminals. Suitable for switching three-phase motors in HVACR systems such as compressors, fans, and pumps
Single-phase, non-reversing definite purpose contactor with 2 poles and 2NO main pole contact form. Coil voltage 190-220/208-240V AC, maximum voltage rating 600V AC, 40 A rating. Surface mount with quick disconnect and screw/box lug terminals. Suitable for switching HVAC compressors, fan motors, and lighting loads
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Single-phase, non-reversing definite purpose contactor with 2 poles and 2NO main pole contact form. Coil voltage 190-220/208-240V AC, maximum voltage rating 600V AC, 40 A rating. Surface mount with quick disconnect and screw/box lug terminals. Suitable for switching HVAC compressors, fan motors, and lighting loads
This 2-pole, non-reversing definite purpose contactor from the Siemens 42 Series is rated for 40 A and features a 110-120V AC coil. It is designed for surface mounting with quick disconnect and screw/box lug terminals. Suitable for switching single-phase loads in HVAC, refrigeration, and industrial equipment such as compressors, fans, and pumps
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This 2-pole, non-reversing definite purpose contactor from the Siemens 42 Series is rated for 40 A and features a 110-120V AC coil. It is designed for surface mounting with quick disconnect and screw/box lug terminals. Suitable for switching single-phase loads in HVAC, refrigeration, and industrial equipment such as compressors, fans, and pumps
Three-pole, non-reversing definite purpose contactor from the 42 Series. Rated 60 A, 600V AC maximum, with 24V AC coil and 3NO main pole contact form. Surface mount with quick disconnect and screw/box lug terminals. Suitable for switching loads in HVAC, refrigeration, and industrial machinery
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Three-pole, non-reversing definite purpose contactor from the 42 Series. Rated 60 A, 600V AC maximum, with 24V AC coil and 3NO main pole contact form. Surface mount with quick disconnect and screw/box lug terminals. Suitable for switching loads in HVAC, refrigeration, and industrial machinery
Three-pole, non-reversing definite purpose contactor from the 42 Series. Rated 30 A with a maximum voltage of 600V AC and a 240/277V AC coil. Features 3NO main pole contact form, surface mounting, and terminal connections via quick disconnect and screw/box lug. Suitable for switching three-phase loads such as motors, compressors, and pumps in HVAC and industrial equipment
Siemens
Three-pole, non-reversing definite purpose contactor from the 42 Series. Rated 30 A with a maximum voltage of 600V AC and a 240/277V AC coil. Features 3NO main pole contact form, surface mounting, and terminal connections via quick disconnect and screw/box lug. Suitable for switching three-phase loads such as motors, compressors, and pumps in HVAC and industrial equipment