Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
Siemens Magnetic Contactor: Reversing, 3 Poles, NEMA Size 4, 135 A - Reversing NEMA Contactors
SiemensReversing NEMA Contactors

Siemens Magnetic Contactor: Reversing, 3 Poles, NEMA Size 4, 135 A

SKU 3G-OTH-42277

Brand
Siemens
Item
Magnetic Contactor: Reversing, 3 Poles, NEMA Size 4, 135 A
Category
Reversing NEMA Contactors
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

Siemens
Manufacturer Part Number
43JG32AA
Type
NEMA Size 4, 135 A
Poles
3
AC (Dual Rated)
120/240V
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Frequently Asked Questions

What is a Siemens NEMA reversing magnetic contactor used for?

A Siemens NEMA reversing magnetic contactor controls the direction of a three-phase motor by swapping two phases. It is used in industrial applications like conveyors, hoists, and elevators where forward and reverse operation is required.

What are the specifications of the Siemens 43JG32AA contactor?

The Siemens 43JG32AA is a NEMA Size 4 reversing contactor with 3 poles, rated 135 A, and dual-rated coil voltage of 120/240V AC. It is designed for heavy-duty motor control in industrial environments.

Where to buy a Siemens reversing contactor worldwide?

3G Electric supplies the Siemens reversing contactor worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we source and deliver genuine Siemens parts to any location, ensuring compliance with local requirements.

How to select the right NEMA contactor size for a motor?

Select a NEMA contactor size based on the motor's full-load current and voltage. For a 135 A rating, NEMA Size 4 is appropriate. Always verify the coil voltage matches your control circuit, such as the 120/240V AC dual-rated coil on this Siemens model.

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 reversing nema contactors. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
SIEMENS NEMA Magnetic Contactor: Reversing, 3 Poles, NEMA Size 4, 135 A, 120V AC (MPN 43JG32AF). Key specifications — Brand: SIEMENS.
Siemens
SIEMENS NEMA Magnetic Contactor: Reversing, 3 Poles, NEMA Size 4, 135 A, 120V AC (MPN 43JG32AF). Key specifications — Brand: SIEMENS.
SIEMENS NEMA Magnetic Contactor: Reversing, 3 Poles, NEMA Size 4, 135 A, 240V AC (MPN 43JG32AG). Key specifications — Brand: SIEMENS.
Siemens
SIEMENS NEMA Magnetic Contactor: Reversing, 3 Poles, NEMA Size 4, 135 A, 240V AC (MPN 43JG32AG). Key specifications — Brand: SIEMENS.
SIEMENS NEMA Magnetic Contactor: Reversing, 3 Poles, NEMA Size 2-1/2, 60 A, 120/240V AC (Dual Rated) (MPN 43GP32AA). Key specifications — Brand: SIEMENS.
Siemens
SIEMENS NEMA Magnetic Contactor: Reversing, 3 Poles, NEMA Size 2-1/2, 60 A, 120/240V AC (Dual Rated) (MPN 43GP32AA). Key specifications — Brand: SIEMENS.
SIEMENS NEMA Magnetic Contactor: Reversing, 3 Poles, NEMA Size 0, 18 A, 120/240V AC (Dual Rated) (MPN 43CP32AA). Key specifications — Brand: SIEMENS.
Siemens
SIEMENS NEMA Magnetic Contactor: Reversing, 3 Poles, NEMA Size 0, 18 A, 120/240V AC (Dual Rated) (MPN 43CP32AA). Key specifications — Brand: SIEMENS.
SIEMENS NEMA Magnetic Contactor: Reversing, 3 Poles, NEMA Size 4, 135 A, 208V AC (MPN 43JG32AD). Key specifications — Brand: SIEMENS.
Siemens
SIEMENS NEMA Magnetic Contactor: Reversing, 3 Poles, NEMA Size 4, 135 A, 208V AC (MPN 43JG32AD). Key specifications — Brand: SIEMENS.
SIEMENS NEMA Magnetic Contactor: Reversing, 3 Poles, NEMA Size 3-1/2, 115 A, 240V AC (MPN 43IP32AG). Key specifications — Brand: SIEMENS.
Siemens
SIEMENS NEMA Magnetic Contactor: Reversing, 3 Poles, NEMA Size 3-1/2, 115 A, 240V AC (MPN 43IP32AG). Key specifications — Brand: SIEMENS.

More from Siemens

View all Siemens parts →
SIEMENS NEMA Magnetic Contactor: Reversing, 3 Poles, NEMA Size 2, 45 A, 120/240V AC (Dual Rated) (MPN 43FP32AA). Key specifications — Brand: SIEMENS.
Siemens
SIEMENS NEMA Magnetic Contactor: Reversing, 3 Poles, NEMA Size 2, 45 A, 120/240V AC (Dual Rated) (MPN 43FP32AA). Key specifications — Brand: SIEMENS.
SIEMENS NEMA Magnetic Contactor: Reversing, 3 Poles, NEMA Size 0, 9 A, 120/240V AC (Dual Rated) (MPN 43BP32AA). Key specifications — Brand: SIEMENS.
Siemens
SIEMENS NEMA Magnetic Contactor: Reversing, 3 Poles, NEMA Size 0, 9 A, 120/240V AC (Dual Rated) (MPN 43BP32AA). Key specifications — Brand: SIEMENS.
SIEMENS NEMA Magnetic Contactor: Reversing, 3 Poles, NEMA Size 3-1/2, 115 A, 480V AC (MPN 43IP32AH). Key specifications — Brand: SIEMENS.
Siemens
SIEMENS NEMA Magnetic Contactor: Reversing, 3 Poles, NEMA Size 3-1/2, 115 A, 480V AC (MPN 43IP32AH). Key specifications — Brand: SIEMENS.
SIEMENS NEMA Magnetic Contactor: Reversing, 3 Poles, NEMA Size 1, 27 A, 120/240V AC (Dual Rated) (MPN 43DP32AA). Key specifications — Brand: SIEMENS.
Siemens
SIEMENS NEMA Magnetic Contactor: Reversing, 3 Poles, NEMA Size 1, 27 A, 120/240V AC (Dual Rated) (MPN 43DP32AA). Key specifications — Brand: SIEMENS.
SIEMENS NEMA Magnetic Contactor: Reversing, 3 Poles, NEMA Size 3-1/2, 115 A, 120V AC (MPN 43IP32AF). Key specifications — Brand: SIEMENS.
Siemens
SIEMENS NEMA Magnetic Contactor: Reversing, 3 Poles, NEMA Size 3-1/2, 115 A, 120V AC (MPN 43IP32AF). Key specifications — Brand: SIEMENS.
SIEMENS NEMA Magnetic Contactor: Reversing, 3 Poles, NEMA Size 1-3/4, 40 A, 120V AC (MPN 43EP32AF). Key specifications — Brand: SIEMENS.
Siemens
SIEMENS NEMA Magnetic Contactor: Reversing, 3 Poles, NEMA Size 1-3/4, 40 A, 120V AC (MPN 43EP32AF). Key specifications — Brand: SIEMENS.
SIEMENS NEMA Magnetic Contactor: Reversing, 3 Poles, NEMA Size 1-3/4, 40 A, 120/240V AC (Dual Rated) (MPN 43EP32AA). Key specifications — Brand: SIEMENS.
Siemens
SIEMENS NEMA Magnetic Contactor: Reversing, 3 Poles, NEMA Size 1-3/4, 40 A, 120/240V AC (Dual Rated) (MPN 43EP32AA). Key specifications — Brand: SIEMENS.
SIEMENS NEMA Magnetic Contactor: Reversing, 3 Poles, NEMA Size 3, 90 A, 120/240V AC (Dual Rated) (MPN 43HP32AA). Key specifications — Brand: SIEMENS.
Siemens
SIEMENS NEMA Magnetic Contactor: Reversing, 3 Poles, NEMA Size 3, 90 A, 120/240V AC (Dual Rated) (MPN 43HP32AA). Key specifications — Brand: SIEMENS.