Royal +Two Phase Motor Starter · Fully Automatic
Get Best Price- Model Type
- Royal + · Two Phase Motor Starter
- Operation
- Fully Automatic · Two-phase fully automatic starter
- Rating Range
- 3 HP - 10 HP
- Best Suited For
- Monoblock · Two Phase
Designed for two-phase motors with complete safety protections for reliable pump operation. Built mainly for locations where two-phase supply is common.
What is Royal +?
Royal + is a fully automatic two phase motor starter panel from Subtech (S S Power System), covering 3 HP to 10 HP. It is part of Subtech's motor control solutions range and is commonly used for induction motors, pumps, compressors and other industrial and agricultural machinery. Protection features include overload and short-circuit protection.
Key Specifications at a Glance
Quick reference before you scroll through the full spec sheet
Why Choose Royal +?
What actually matters when you put this on your line
Automated Operation
Reduces manual switching and operator error by handling the start-up sequence on its own.
Digital Monitoring
A digital display and settings make it easier to read status and adjust cut-offs without repeatedly opening the panel.
Wide HP Range
Covers 3 - 10 HP, so one series can standardise across multiple motor sizes on site.
Built for Industrial & Pump Applications
Designed for the duty cycles seen in pumps, compressors, HVAC systems and general industrial motor loads.
Custom Panel Manufacturing Support
Subtech can adapt enclosure size, ratings and add-ons to project-specific requirements on request.
Rust-Resistant, Field-Ready Enclosure
Powder-coated GI/GPSP enclosures are built for Indian site conditions — dusty factory floors, outdoor pump houses and agricultural sheds alike.
Backed by Subtech's Sales & Service Network
25+ years of panel manufacturing and a pan-India dealer network stand behind every unit.
How Royal + Works
Step-by-step operating sequence
- 1
Start Command Given
The panel receives a manual or automatic start signal.
- 2
Contactor Engages the Motor
The switching element connects the motor to the supply per this series' configuration.
- 3
Motor Runs Under Load
The motor operates at its rated duty for the connected application.
- 4
Protection System Monitors Faults Continuously
Built-in protections (see specification table) continue monitoring the motor throughout the run.
How to Select the Correct Model
Match your motor's HP rating to the correct reference number
| HP | Ref. No. | kW | Relay Range (A) | Protection | Size (mm) | MRP |
|---|---|---|---|---|---|---|
| 3 HP | RP3 | — | 15-30 | — | 350*300*110 | ₹12,900 |
| 5 HP | RP5 | — | 20-40 | — | 350*300*110 | ₹14,400 |
| 7.5 HP | RP7 | — | 30-55 | — | 350*400*125 | ₹16,800 |
| 10 HP | RP10 | — | 40-75 | — | 450*450*150 | ₹19,980 |
Common Problems This Solves
Real failure modes on the motor side, and how this panel prevents them
Frequent Tripping From Wrong Model Selection
Use the selection guide above to match your motor's HP and relay range to the correct reference number — an undersized relay setting is a common cause of nuisance tripping.
Description▾
Ideal for the agriculture sector and farmers who need a dependable two-phase pump controller with strong protection. Works on phase-to-phase 440 Volt.
Designed for two-phase motors with complete safety protections for reliable pump operation. Built mainly for locations where two-phase supply is common.
Additional Information▾
- Automatic And Manual Operation
- Digital Automatic Starter
- Input: 180 - 440 VAC
- Works Well On Phase-To-Phase (440 Volt)
- Auto / Manual Mode Selector Switch
- Compact Size & Easy Installation/Operation
- Inbuilt 2 Pole MCB For Extra Protection
- LED Indications For Run Status
- Over / Under Voltage & Current Protection
- Inbuilt 440 VAC Start/Run Capacitors
- Powder Coated Rust Free Box
- Dry Run Feature (Optional)
- With PMC Contactor For Smooth Switching
Models & Pricing
4 models| Ref. No. | HP | MCB | Relay Range (A) | Cap. Start (MFD) | Cap. Run (MFD) | Size (mm) | Wt. (kg) | MRP | Std. Pack |
|---|---|---|---|---|---|---|---|---|---|
| RP3 | 3 | 25 A. | 15-30 | 200/250 | 85 | 350*300*110 | 4.0 | ₹12,900 | 5 |
| RP5 | 5 | 40 A. | 20-40 | 250/300 | 120 | 350*300*110 | 4.0 | ₹14,400 | 5 |
| RP7 | 7.5 | 63 A. | 30-55 | 300/400 | 216 | 350*400*125 | 6.0 | ₹16,800 | 3 |
| RP10 | 10 | — | 40-75 | 250/300*2 | 288 | 450*450*150 | 10 | ₹19,980 | 3 |
Add-ons
- Dry Run Charges: ₹890 charged extra
- Double tank operation: ₹1400 charged extra
- Sensor Set: ₹1380 charged extra
Who Should Buy Royal +?
This product is ideal for the following users and industries
Industrial Units & Factories
Manufacturing plants, processing units, and industrial facilities requiring reliable motor control and automation solutions.
Agricultural & Farming
Farmers and agricultural businesses using water pumps, irrigation systems, and motor-driven equipment for daily operations.
Contractors & Builders
Electrical contractors, panel builders, and construction professionals who need dependable motor starting solutions.
Commercial Establishments
Hotels, hospitals, offices, and commercial buildings with HVAC, lift, and pump motor control requirements.
Applications & Use Cases
Where you can use Royal + effectively
Water Pump Motor Control
Submersible, centrifugal, and booster pump motor starting, protection, and automation for residential and commercial use.
Compressor & HVAC Systems
Air compressors, chillers, and HVAC blower motor control in factories, commercial buildings, and cold storage units.
Conveyor & Material Handling
Belt conveyors, rollers, and material handling equipment motors used in manufacturing and logistics.
Irrigation & Agriculture
Drip irrigation, sprinkler systems, and tube well motors for farms and agricultural land management.
Generator & ATS Panels
Auto transfer switch panels and generator motor control for seamless power backup solutions.
CNC & Machine Tools
Lathe machines, drilling machines, and CNC equipment requiring precise motor starting and protection.
Frequently Asked Questions
Common questions about Royal +
What is the warranty on Royal +?▾
Subtech provides a standard manufacturer warranty on this product. Warranty terms may vary based on the specific model and configuration. Contact our sales team for detailed warranty information.
Can I get a customized version of Royal +?▾
Yes, Subtech specializes in custom panel manufacturing. We can modify specifications, ratings, enclosure types, and features as per your specific requirements. Share your needs through the quote form above.
What is the delivery time?▾
Standard models are typically available within 3-5 working days. Customized configurations may take 7-15 working days depending on complexity. We deliver across India.
Is installation support available?▾
Yes, Subtech provides installation guidance and technical support. For bulk orders, on-site commissioning support is also available. Our service team can assist with wiring diagrams and configuration.
Can I buy this product in bulk for my project?▾
Absolutely. We offer competitive bulk pricing for dealers, distributors, contractors, and project orders. Request a quote with your quantity for the best price.
Royal + vs Conventional Motor Starter
See exactly what the automation adds over a conventional starter
| Feature | Royal + | Conventional Starter |
|---|---|---|
| Operation | Fully automatic, digital soft-switch settings | Manual or basic electromechanical timer relay |
| Protection | As per model | Typically overload/MCB protection only |
| Automation | Yes — timer/control logic manages the full start sequence | Manual timer relay, no digital control logic |
| External Command | Not standard on this model | Not supported |
| Display / Monitoring | Digital display | Analog meters or none |
| Phase Failure Protection | Not standard on this model | Usually not included |
| Reverse Phase Protection | Not standard on this model | Usually not included |
| Voltage Monitoring | Not standard on this model | Usually not included |
| Dry Run Protection | Available as an add-on | Not available |
| Maintenance | Low — solid-state switching, PMC contactor | Higher — mechanical timer relay wears over time |
| Customization | Subtech offers custom panel manufacturing on request | Typically fixed configuration |
Downloads
Technical documentation for this model
Related Technical Articles
Applicable Standards & Design Considerations
- IEC/IS 60947: Low-voltage switchgear and controlgear — general design reference for contactors, starters and protective devices, where applicable to the components used.
- IS/IEC 60529: Enclosure ingress protection (IP) ratings — referenced for enclosure design where an IP rating is specified for a given model.