Starter Panels (DOL / Star-Delta / MCC)

Motor Starter Panel (DOL / Star-Delta / Auto-Transformer)

Motor starter panel for 3-phase induction motors and submersible pump sets. DOL, Star-Delta, and Auto-Transformer variants with complete protection package.

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Technical data sheet

Motor Starter Panel (DOL / Star-Delta / Auto-Transformer)

Motor starter panel for 3-phase induction motors and submersible pump sets. DOL (≤ 5 HP), Star-Delta (5–60 HP), and Auto-Transformer (≥ 60 HP) variants with complete protection package.

Characteristics

Motor RatingHP1 to 200
kW0.75 to 150
Starting methodDOL / Star-Delta / Auto-Transformer / Soft-Starter / Reactor
SupplyVolt380–415 (3Φ), 4-wire
FrequencyHz50
Short-circuit withstandkA10 / 25 / 50 (rating dependent)
EnclosurePowder-coated MS, IP54 / IP55 / IP65
ProtectionsOverload, Short-circuit, Single-phasing, Earth fault, Under/Over voltage, Phase reversal
Control voltageV AC230 (control circuit derived from supply)
ApplicationsUsePumps, Blowers, Compressors, Conveyors, Machine drives, Industrial loads

Material of Construction — Power circuit

  • Incoming MCCB / MCB: Per IEC 60947-2, ICU 25 / 50 kA
  • Main contactor: AC-3 duty (Siemens / L&T / Schneider)
  • Star contactor (S-D): AC-3 duty, sized to 1/√3 of full-load current
  • Delta contactor (S-D): AC-3 duty, full-load current rated
  • Auto-transformer: Dry-type, copper wound, 50/65/80% taps (large frames)
  • Overload relay: Thermal / electronic with single-phasing protection
  • Star-delta timer: Adjustable 0–60 sec, electronic

Material of Construction — Control & enclosure

  • Control transformer: 230 V / 24 V (option), encapsulated
  • Indicators: LED indicators (R-Y-B, Run, Trip, Star, Delta)
  • Push buttons: Start / Stop / Reset (heavy-duty IP65 type)
  • Selector switch: Manual / Off / Auto rotary
  • Meters: Ammeter, voltmeter, hour-meter (digital)
  • Enclosure: 1.6 / 2.0 mm MS, powder-coated RAL 7035, IP54/55/65
  • Cable entry: Bottom gland plate with PG / brass glands

Salient Features

  • DOL (Direct On-Line) — for motors ≤ 5 HP
  • Star-Delta — for motors 5–60 HP, reduces inrush to ~33% of DOL
  • Auto-Transformer — for ≥ 60 HP, 50% / 65% / 80% taps available
  • Soft-starter option for jerk-free starting & extended motor life
  • Time-delay timer for star-to-delta transition (factory pre-set)
  • Single-phasing preventer & phase-reversal protection
  • Thermal overload with single-phasing protection
  • Earth-fault relay (optional)
  • Indicators, meters, & push buttons on front panel
  • Conforms to IEC 61439 / IS 8623

Applications

  • 3-phase pump motor starting (submersible & surface)
  • Blowers & compressors
  • Conveyor & machine drives
  • Mills, mixers & grinders
  • Industrial fan motors
  • Cooling tower fans
  • Workshop & machinery starting

Star-Delta only applicable for motors with all 6 stator terminals accessible (delta-rated at supply voltage).

For frequent-start service (>20/hour), prefer soft-starter or VFD over electromechanical starter.

Have a question? Drop us a line.

Share your duty point — head, flow, voltage, application — and our engineering team will match the right configuration.

Request quotationTalk to engineering

Applications

Project and industry usage examples.

  • 3-phase motor starting
  • Pumps
  • Blowers & compressors
  • Conveyors
  • Industrial loads

Key features

Built for export-grade reliability.

  • DOL (≤ 5 HP) / Star-Delta (5–60 HP) / Auto-Transformer (≥ 60 HP)
  • Soft-starter option
  • Thermal overload with single-phasing protection
  • Conforms to IEC 61439 / IS 8623
FAQs

Technical Specifications
Motor rating0.75 kW (1 HP) to 150 kW (200 HP)
Supply380–415 V (3Φ) 4-wire
Short-circuit withstand10 / 25 / 50 kA
EnclosureIP54 / IP55 / IP65
Datasheet

Configuration-specific datasheets and pump curves are shared on request with RFQ for tender and EPC submissions.

Technical content

motor starter panel manufacturer — technical overview

Overview

Motor Starter Panel (DOL / Star-Delta / Auto-Transformer) from SUPERTECH WATER SOLUTION is engineered for B2B procurement where reliability, documentation, and lifecycle cost matter. This Starter Panels (DOL / Star-Delta / MCC) portfolio is built for government departments, EPC contractors, infrastructure companies, industrial plants, agricultural duty cycles, water treatment operators, and export buyers. If you are searching for motor starter panel manufacturer, this page is designed to help you evaluate performance, installation fit, and compliance readiness. We support projects across India, Ahmedabad, Gujarat, UAE, Dubai, Saudi Arabia, Qatar, Oman, Kuwait, Bahrain, Africa.

Applications & industries served

Industrial procurement teams typically select Motor Starter Panel (DOL / Star-Delta / Auto-Transformer) based on duty point, source conditions, water quality, voltage, and installation constraints. Common applications include 3-phase motor starting, Pumps, Blowers & compressors, Conveyors, Industrial loads. Industries served include infrastructure, municipal utilities, agriculture and irrigation, industrial manufacturing plants, builders and developers, and EPC project environments. For export projects, selection is aligned to spares availability, site serviceability, and documentation quality.

Key features designed for procurement confidence

SUPERTECH WATER SOLUTION focuses on consistent engineering fundamentals that matter in real installations: stable hydraulics, durable materials, robust electrical protection, and service-friendly assembly. Key highlights include: DOL (≤ 5 HP) / Star-Delta (5–60 HP) / Auto-Transformer (≥ 60 HP); Soft-starter option; Thermal overload with single-phasing protection; Conforms to IEC 61439 / IS 8623. Our export-focused approach emphasizes predictable performance and clearer documentation for faster tender evaluation and RFQ comparison.

Technical specifications (selection-ready)

Technical selection is most accurate when duty point is defined (head, discharge, flow rate) along with installation parameters. This product family supports configuration-based selection. Typical specification references for procurement may include power, head, capacity, pipe sizing, voltage range, material options, and protection requirements. If you need a customized datasheet for tender submission, request it via RFQ with your duty point and country.

Export-ready documentation and support

For GCC and Africa markets, procurement teams often require consistent data presentation and professional submission quality. We support RFQ workflows with technical tables, brochure packs, application notes, and documentation aligned to EPC and government procurement. This is built for buyers targeting keywords like star delta starter, auto transformer starter, DOL starter panel. Our team can assist with product comparison, recommended configuration, and supply planning.

How to specify your requirement (RFQ template)

To receive the fastest and most accurate quotation, share a structured requirement. Minimum recommended RFQ fields: application (agriculture / industrial / utility), water source (borewell, openwell, sump), duty point (flow + head), discharge size, voltage and phase, expected daily operating hours, installation depth (if any), and destination country. For projects in UAE, Saudi Arabia, Qatar, Oman, Kuwait, Bahrain, and Africa, also share preferred packing, labeling, and required documentation format.

Quality philosophy (SUPERTECH KAIZEN)

SUPERTECH KAIZEN drives continuous improvement across manufacturing discipline, inspection checkpoints, and export packing. The result is procurement confidence: stable supply, consistent performance, and clearer technical communication. For tender environments, this reduces ambiguity and shortens evaluation time.

Serviceability, spares, and lifecycle value

Industrial buyers evaluate more than purchase price — they evaluate downtime risk and lifecycle support. We design product families with maintainability in mind: clear spares mapping, service access where practical, and compatibility across common configurations. When required, we can align spares packs for export projects and EPC commissioning timelines.

Procurement FAQ

If you are comparing suppliers for motor starter panel manufacturer, focus on documentation clarity, performance transparency, and after-sales readiness. Ask for the exact configuration matching your duty point, request a technical table for comparison, and ensure the supplier can support export packing and lead times. Our team supports these workflows for India and export markets.

Engineering notes 1

For Motor Starter Panel (DOL / Star-Delta / Auto-Transformer) selection, align hydraulic performance with real site conditions: friction losses, suction characteristics (if applicable), voltage stability, and environmental factors. Export projects frequently benefit from a standardized documentation pack and a clear configuration naming structure for procurement teams. When targeting procurement teams in India, Ahmedabad, Gujarat, UAE, Dubai, Saudi Arabia, Qatar, Oman, include the duty point and intended application so the quotation is technically precise and directly comparable. This helps buyers searching for motor starter panel manufacturer and related keywords such as star delta starter, auto transformer starter, DOL starter panel.

Engineering notes 2

For Motor Starter Panel (DOL / Star-Delta / Auto-Transformer) selection, align hydraulic performance with real site conditions: friction losses, suction characteristics (if applicable), voltage stability, and environmental factors. Export projects frequently benefit from a standardized documentation pack and a clear configuration naming structure for procurement teams. When targeting procurement teams in India, Ahmedabad, Gujarat, UAE, Dubai, Saudi Arabia, Qatar, Oman, include the duty point and intended application so the quotation is technically precise and directly comparable. This helps buyers searching for motor starter panel manufacturer and related keywords such as star delta starter, auto transformer starter, DOL starter panel.

Engineering notes 3

For Motor Starter Panel (DOL / Star-Delta / Auto-Transformer) selection, align hydraulic performance with real site conditions: friction losses, suction characteristics (if applicable), voltage stability, and environmental factors. Export projects frequently benefit from a standardized documentation pack and a clear configuration naming structure for procurement teams. When targeting procurement teams in India, Ahmedabad, Gujarat, UAE, Dubai, Saudi Arabia, Qatar, Oman, include the duty point and intended application so the quotation is technically precise and directly comparable. This helps buyers searching for motor starter panel manufacturer and related keywords such as star delta starter, auto transformer starter, DOL starter panel.

Engineering notes 4

For Motor Starter Panel (DOL / Star-Delta / Auto-Transformer) selection, align hydraulic performance with real site conditions: friction losses, suction characteristics (if applicable), voltage stability, and environmental factors. Export projects frequently benefit from a standardized documentation pack and a clear configuration naming structure for procurement teams. When targeting procurement teams in India, Ahmedabad, Gujarat, UAE, Dubai, Saudi Arabia, Qatar, Oman, include the duty point and intended application so the quotation is technically precise and directly comparable. This helps buyers searching for motor starter panel manufacturer and related keywords such as star delta starter, auto transformer starter, DOL starter panel.

Engineering notes 5

For Motor Starter Panel (DOL / Star-Delta / Auto-Transformer) selection, align hydraulic performance with real site conditions: friction losses, suction characteristics (if applicable), voltage stability, and environmental factors. Export projects frequently benefit from a standardized documentation pack and a clear configuration naming structure for procurement teams. When targeting procurement teams in India, Ahmedabad, Gujarat, UAE, Dubai, Saudi Arabia, Qatar, Oman, include the duty point and intended application so the quotation is technically precise and directly comparable. This helps buyers searching for motor starter panel manufacturer and related keywords such as star delta starter, auto transformer starter, DOL starter panel.

Engineering notes 6

For Motor Starter Panel (DOL / Star-Delta / Auto-Transformer) selection, align hydraulic performance with real site conditions: friction losses, suction characteristics (if applicable), voltage stability, and environmental factors. Export projects frequently benefit from a standardized documentation pack and a clear configuration naming structure for procurement teams. When targeting procurement teams in India, Ahmedabad, Gujarat, UAE, Dubai, Saudi Arabia, Qatar, Oman, include the duty point and intended application so the quotation is technically precise and directly comparable. This helps buyers searching for motor starter panel manufacturer and related keywords such as star delta starter, auto transformer starter, DOL starter panel.

Engineering notes 7

For Motor Starter Panel (DOL / Star-Delta / Auto-Transformer) selection, align hydraulic performance with real site conditions: friction losses, suction characteristics (if applicable), voltage stability, and environmental factors. Export projects frequently benefit from a standardized documentation pack and a clear configuration naming structure for procurement teams. When targeting procurement teams in India, Ahmedabad, Gujarat, UAE, Dubai, Saudi Arabia, Qatar, Oman, include the duty point and intended application so the quotation is technically precise and directly comparable. This helps buyers searching for motor starter panel manufacturer and related keywords such as star delta starter, auto transformer starter, DOL starter panel.

Engineering notes 8

For Motor Starter Panel (DOL / Star-Delta / Auto-Transformer) selection, align hydraulic performance with real site conditions: friction losses, suction characteristics (if applicable), voltage stability, and environmental factors. Export projects frequently benefit from a standardized documentation pack and a clear configuration naming structure for procurement teams. When targeting procurement teams in India, Ahmedabad, Gujarat, UAE, Dubai, Saudi Arabia, Qatar, Oman, include the duty point and intended application so the quotation is technically precise and directly comparable. This helps buyers searching for motor starter panel manufacturer and related keywords such as star delta starter, auto transformer starter, DOL starter panel.

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