We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

Siemens Variable Frequency Drive: In Phase Three, 3 hp, 5.5 A Output Current - Max - Siemens Climatix RTU VFDs
SiemensSiemens Climatix RTU VFDs

Siemens Variable Frequency Drive: In Phase Three, 3 hp, 5.5 A Output Current - Max

The SIEMENS Variable Frequency Drive: In Phase Three is a compact Climatix RTU VFD (SKU RT003X-43N, MPN RT003X-43N) with a 3 hp rating, 5.5 A maximum output current, and IP21 enclosure. It features a Black/Blue/Gray…

SKU 3G-OTH-56054

Also listed as: RT003X43N · RT003X 43N

Brand
Siemens
Item
Variable Frequency Drive: In Phase Three, 3 hp, 5.5 A Output Current - Max
Category
Siemens Climatix RTU VFDs
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
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

Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

Siemens
Manufacturer Part Number
RT003X-43N
Type
3 hp, 5.5 A Output Current - Max, IP21, No Bypass
Color
Black/Blue/Gray
Style
Compact

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

Product Description

The SIEMENS Variable Frequency Drive: In Phase Three is a compact Climatix RTU VFD (SKU RT003X-43N, MPN RT003X-43N) with a 3 hp rating, 5.5 A maximum output current, and IP21 enclosure. It features a Black/Blue/Gray color scheme and no bypass.

Frequently Asked Questions

What is the Siemens Climatix RTU VFD used for?

The Siemens Climatix RTU VFD is used to control the speed of three-phase motors in rooftop HVAC units and commercial building automation systems. It optimizes energy consumption by adjusting motor speed to match load demand, reducing wear on mechanical components and improving system efficiency.

What are the specifications of the Siemens RT003X-43N VFD?

The Siemens RT003X-43N is a compact Climatix RTU VFD with a 3 hp rating, 5.5 A maximum output current, and IP21 enclosure. It operates on three-phase input, has no bypass, and features a Black/Blue/Gray color scheme. The MPN is RT003X-43N and SKU is 810KL7.

Where to buy Siemens RT003X-43N VFD worldwide?

You can source the Siemens RT003X-43N VFD 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 supply genuine Siemens drives for international procurement.

How to select the right Siemens Climatix VFD for an HVAC application?

To select the right Siemens Climatix VFD, match the drive's horsepower and output current to your motor's full-load amps. Consider enclosure rating (IP21 for indoor, higher for outdoor), input voltage phase, and whether bypass is needed. The RT003X-43N suits 3 hp, three-phase motors without bypass.

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 siemens climatix rtu vfds. 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

Compatible alternatives & equivalents

Cross-referenced by specification & description
SIEMENS Variable Frequency Drive: In Phase Three, 3 hp, 11 A Output Current - Max, IP21, No Bypass (MPN RT003X-23N)
Siemens
SIEMENS Variable Frequency Drive: In Phase Three, 3 hp, 11 A Output Current - Max, IP21, No Bypass (MPN RT003X-23N)
SIEMENS Variable Frequency Drive: In Phase Three, 2 hp, 4.2 A Output Current - Max, IP21, No Bypass (MPN RT002X-43N)
Siemens
SIEMENS Variable Frequency Drive: In Phase Three, 2 hp, 4.2 A Output Current - Max, IP21, No Bypass (MPN RT002X-43N)
SIEMENS Variable Frequency Drive: In Phase Single, 3 hp, 11 A Output Current - Max, IP21, No Bypass (MPN RT003X-21N)
Siemens
SIEMENS Variable Frequency Drive: In Phase Single, 3 hp, 11 A Output Current - Max, IP21, No Bypass (MPN RT003X-21N)
SIEMENS Variable Frequency Drive: In Phase Three, 1 hp, 2.7 A Output Current - Max, IP21, No Bypass (MPN RT001X-43N)
Siemens
SIEMENS Variable Frequency Drive: In Phase Three, 1 hp, 2.7 A Output Current - Max, IP21, No Bypass (MPN RT001X-43N)
SIEMENS Variable Frequency Drive: In Phase Three, 7 1/2 hp, 13 A Output Current - Max, IP21, Compact (MPN RT0075-43N)
Siemens
SIEMENS Variable Frequency Drive: In Phase Three, 7 1/2 hp, 13 A Output Current - Max, IP21, Compact (MPN RT0075-43N)
SIEMENS Variable Frequency Drive: In Phase Three, 1 hp, 4.8 A Output Current - Max, IP21, No Bypass (MPN RT001X-23N)
Siemens
SIEMENS Variable Frequency Drive: In Phase Three, 1 hp, 4.8 A Output Current - Max, IP21, No Bypass (MPN RT001X-23N)

More from Siemens

View all Siemens parts
SIEMENS Variable Frequency Drive: In Phase Three, 2 hp, 3 A Output Current - Max, IP21, No Bypass (MPN RT002X-53N)
Siemens
SIEMENS Variable Frequency Drive: In Phase Three, 2 hp, 3 A Output Current - Max, IP21, No Bypass (MPN RT002X-53N)
SIEMENS Variable Frequency Drive: In Phase Three, 3 hp, 4.2 A Output Current - Max, IP21, No Bypass (MPN RT003X-53N)
Siemens
SIEMENS Variable Frequency Drive: In Phase Three, 3 hp, 4.2 A Output Current - Max, IP21, No Bypass (MPN RT003X-53N)
SIEMENS Variable Frequency Drive: In Phase Three, 7 1/2 hp, 25 A Output Current - Max, IP21, Compact (MPN RT0075-23N)
Siemens
SIEMENS Variable Frequency Drive: In Phase Three, 7 1/2 hp, 25 A Output Current - Max, IP21, Compact (MPN RT0075-23N)
SIEMENS Variable Frequency Drive: In Phase Three, 5 hp, 9 A Output Current - Max, IP21, No Bypass (MPN RT005X-43N)
Siemens
SIEMENS Variable Frequency Drive: In Phase Three, 5 hp, 9 A Output Current - Max, IP21, No Bypass (MPN RT005X-43N)
SIEMENS Variable Frequency Drive: In Phase Three, 2 hp, 7.5 A Output Current - Max, IP21, No Bypass (MPN RT002X-23N)
Siemens
SIEMENS Variable Frequency Drive: In Phase Three, 2 hp, 7.5 A Output Current - Max, IP21, No Bypass (MPN RT002X-23N)
SIEMENS Variable Frequency Drive: In Phase Three, 1 hp, 1.7 A Output Current - Max, IP21, No Bypass (MPN RT001X-53N)
Siemens
SIEMENS Variable Frequency Drive: In Phase Three, 1 hp, 1.7 A Output Current - Max, IP21, No Bypass (MPN RT001X-53N)
SIEMENS Variable Frequency Drive: In Phase Three, 5 hp, 6.6 A Output Current - Max, IP21, No Bypass (MPN RT005X-53N)
Siemens
SIEMENS Variable Frequency Drive: In Phase Three, 5 hp, 6.6 A Output Current - Max, IP21, No Bypass (MPN RT005X-53N)
SIEMENS Variable Frequency Drive: In Phase Three, 7 1/2 hp, 9.9 A Output Current - Max, IP21, Gray (MPN RT0075-53N)
Siemens
SIEMENS Variable Frequency Drive: In Phase Three, 7 1/2 hp, 9.9 A Output Current - Max, IP21, Gray (MPN RT0075-53N)