Alarm Annunciators & Motor Protection Relays

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Alarm Annunciators & Motor Protection Relays

Protech Marketing is an authorized distributor and trusted supplier of Proton Power Control industrial electronic systems, delivering industry-leading Alarm Annunciator Panels, Electronic Hooters, Motor Protection Units, and Monitoring Relays. Designed and manufactured in Pune, India for modern switchgear, control panels, power utilities, and industrial process automation, Proton products ensure absolute electrical reliability, early fault detection, and fail-safe motor protection.

OFFICIAL MODEL CONFIGURATIONS & SERIES

Available Models & Industrial Series

Explore precision-engineered series manufactured to exact industry standards. Select any category below to view specific model specifications or request a quote.

Proton VMR-1P PR-15 Single Phase Voltage Monitoring Relay

Proton VMR-1P PR-15 Single Phase Voltage Monitoring Relay

Single Phase Under/Over Voltage Protection Relay with Adjustable Trip Voltage & Time Delays, DIN Rail

Proton VMR-3P PR-07 Three Phase Voltage Monitoring Relay

Proton VMR-3P PR-07 Three Phase Voltage Monitoring Relay

Microcontroller 3-Phase Relay Guarding Against Phase Loss, Phase Sequence Reversal & Voltage Asymmetry

Proton VFR-1P Single Phase Voltage & Frequency Relay

Proton VFR-1P Single Phase Voltage & Frequency Relay

Precision Voltage and Frequency Monitoring Relay with Independent Trip Settability for DG Sets & Mains

Proton VFR-3P Three Phase Voltage & Frequency Relay

Proton VFR-3P Three Phase Voltage & Frequency Relay

3-Phase Digital Monitoring Relay with Under/Over Frequency & Voltage Safeguards in 35mm DIN Enclosure

Proton PSR-3P Automatic 3-Phase Selector Relay

Proton PSR-3P Automatic 3-Phase Selector Relay

Automatic Phase Selection Unit Ensuring Continuous Single Phase Supply to Critical Control Gear from 3 Phases

Proton PCR-3P Automatic Phase Correction Relay

Proton PCR-3P Automatic Phase Correction Relay

Phase Sequence Sense & Correction Relay with Internal Electrical Interlocking to Prevent Motor Direction Reversal

Proton PRO4-1D 4 Window Alarm Annunciator (Plastic Enclosure)

Proton PRO4-1D 4 Window Alarm Annunciator (Plastic Enclosure)

4 Window Microprocessor Annunciator in Compact Flame-Retardant ABS Enclosure, 96x96 mm DIN Cutout

Proton PRO6-1D 6 Window Alarm Annunciator (Plastic Enclosure)

Proton PRO6-1D 6 Window Alarm Annunciator (Plastic Enclosure)

6 Window Annunciator Panel with Super-Bright LED Windows, Field-Selectable Fault Sequences (ISA 18.1)

Proton PRO8-1D 8 Window Alarm Annunciator (Plastic Enclosure)

Proton PRO8-1D 8 Window Alarm Annunciator (Plastic Enclosure)

8 Window Modular Visual Alarm Panel in Moulded ABS Housing with Opto-Isolated Inputs & Test/Mute Buttons

Proton PRO12-2D 12 Window Alarm Annunciator (Plastic Enclosure)

Proton PRO12-2D 12 Window Alarm Annunciator (Plastic Enclosure)

12 Window Dual-Row Annunciator in Engineering Plastic Enclosure with Built-in SMPS & Dual Relay Outputs

Proton PRO16-2D 16 Window Alarm Annunciator (Plastic Enclosure)

Proton PRO16-2D 16 Window Alarm Annunciator (Plastic Enclosure)

16 Window High-Density Fault Alarm Annunciator Panel in Tough Molded Housing (144x144 mm DIN Standard)

Proton PRO24-3D 24 Window Alarm Annunciator (Plastic Enclosure)

Proton PRO24-3D 24 Window Alarm Annunciator (Plastic Enclosure)

24 Window Large-Capacity Visual Annunciator Panel with Multi-Channel Optical Isolation & Optional RS485 Modbus

Proton HTR-UN Universal Industrial Electronic Hooter

Proton HTR-UN Universal Industrial Electronic Hooter

Solid-State Multi-Tone Industrial Hooter with Universal 90-270V AC/DC Auxiliary Supply, Up to 110 dB Sound Output

Proton HTR-W-O Window Fitting Audio Electronic Hooter

Proton HTR-W-O Window Fitting Audio Electronic Hooter

DIN Standard Window Mount Audio Annunciator Sounder for Direct Panel Integration with Selectable Alarm Tones

Proton PRO4-1D-H 4 Window Annunciator with Inbuilt Hooter

Proton PRO4-1D-H 4 Window Annunciator with Inbuilt Hooter

Integrated 4 Window Visual Annunciator with Internal Piezo Electronic Sounder in Single Compact ABS Unit

Proton PRO8-2D-H 8 Window Annunciator with Inbuilt Hooter

Proton PRO8-2D-H 8 Window Annunciator with Inbuilt Hooter

Dual Function 8 Window Annunciator Panel with Inbuilt High-Decibel Acoustic Sounder for Immediate Alerting

Proton MPU 3P Door Mounting Motor Protection Unit

Proton MPU 3P Door Mounting Motor Protection Unit

Microprocessor 3-Phase Motor Protection Unit with Front Panel Door Mount, True RMS Current & Voltage Scanning

Proton MPU-DIN Rail Solid-State Motor Protection Relay

Proton MPU-DIN Rail Solid-State Motor Protection Relay

Compact DIN Rail Motor Safeguard with Overload, Single Phasing, Current Unbalance & Earth Leakage Trip

Proton MPC 8 Digital Motor Pump Protection Controller

Proton MPC 8 Digital Motor Pump Protection Controller

Solid-State Motor & Submersible Pump Controller with LED Display, Auto-Restart & Comprehensive Dry-Run Protection

Proton MFM-31 Multi-Function Digital Power Meter

Proton MFM-31 Multi-Function Digital Power Meter

True RMS 3-Phase Power & Energy Meter, V, I, Hz, PF, kW, kVA, kWh Measurement with RS485 Modbus RTU

Proton Dual A.C. Sequential Controller & Timer

Proton Dual A.C. Sequential Controller & Timer

Cyclic Sequential Automation Controller for Dual Air Conditioners in Telecom Shelters, Server Rooms & Sub-stations

Proton TPI Digital Tap Position Indicator

Proton TPI Digital Tap Position Indicator

Digital Transformer OLTC Tap Position Meter with Potentiometric / Resistance Inputs and Bright 2-Digit Display

Proton DPI Digital RPM & Line Frequency Indicator

Proton DPI Digital RPM & Line Frequency Indicator

High-Accuracy Digital Tachometer and Power Frequency Indicator for Industrial Switchgear & Control Panels

AUTHORIZED INDUSTRIAL DISTRIBUTION & INTEGRATION

Reliable Alarm Annunciation & Intelligent Motor Protection by Proton

Protech Marketing partners with Proton Power Control Pvt. Ltd. to supply the complete industrial catalog of alarm annunciator panels, motor monitoring relays, electronic hooters, and digital panel instrumentation.

From microprocessor-based alarm annunciators in fire-retardant ABS enclosures to solid-state motor protection units and universal electronic hooters, Proton Power Control provides rugged, high-reliability instrumentation for mission-critical power and industrial facilities.

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Proton Alarm Annunciators & Motor Protection

Proton Power Control Engineering & Technology Overview

Protech Marketing is an authorized dealer and supplier of Proton Power Control industrial electronics. With decades of manufacturing excellence in Pune, Proton is renowned for cutting-edge alarm annunciators (ranging from 1 to 64 windows), solid-state electronic hooters, voltage/frequency monitoring relays, and digital motor protection units designed for the most demanding electrical substation and automation environments.

  • Complete product portfolio: Microprocessor Alarm Annunciator Panels, Electronic Hooters, Motor Protection Units, Voltage Monitoring Relays, and Multi-Function Meters.
  • Rugged Flame-Retardant ABS Plastic Enclosures with standard 96x96 mm and 144x144 mm DIN panel cutouts.
  • Optically isolated fault inputs with high noise immunity against severe electrical transients and electromagnetic interference.
  • Field-programmable alarm sequences conforming to ISA-18.1 international standards (Auto / Manual / First-Out reset).
  • Super-bright LED window illumination with long service life and dual potential-free relay contacts for external hooter and trip circuits.
  • Integrated and standalone electronic hooters featuring universal 90-270V AC/DC auxiliary supply and high audio output up to 110 dB.
  • Solid-state motor protection units safeguarding against single phasing, phase reversal, unbalance, overload, and dry running.
  • 100% factory tested, serialized, and backed by comprehensive OEM manufacturer warranty.

Technical Specifications & System Parameters

| Parameter | Specification |
| Product Categories | Alarm Annunciators, Electronic Hooters, Motor Protection Units, Monitoring Relays, Power Meters |
| Window Configurations | 4, 6, 8, 12, 16, 20, 24, 28, 32, 36, 48, and 64 Windows |
| Enclosure Materials | High-Impact Flame-Retardant ABS Plastic (Moulded) & Sheet Steel (Powder Coated) |
| DIN Standard Cutouts | 96x96 mm, 144x144 mm, 144x216 mm, 216x288 mm |
| Operating Sequences | ISA-18.1 Sequence A, M, R, F1A, F2M, F3A (Field Selectable via DIP Switches) |
| Fault Inputs | Potential Free Contacts (NO/NC Selectable), Opto-Coupler Isolated (2.5 kV Isolation) |
| Output Relays | 2 Form C (1 NO + 1 NC) rated 5A @ 230V AC (Separate Alarm & Trip Relays) |
| Auxiliary Supply | Universal 90V - 270V AC / DC, or 18V - 60V DC |
| Hooter Audio Output | Multi-Tone Electronic Hooter (85 dB to 110 dB @ 1 meter) |
| Motor Protection Functions | Overload, Underload, Phase Loss (SPP), Phase Reversal, Voltage/Current Asymmetry |
| Communication | RS-485 Modbus RTU Protocol (Optional for SCADA / PLC Connectivity) |
| Operating Temperature | -10°C to +55°C, up to 95% RH non-condensing |

Industrial Applications & Deployment Environments

  • Electrical Substations, Switchgear Panels & Control Desks
  • Thermal, Hydro, Nuclear & Solar Power Generation Plants
  • Motor Control Centers (MCC) & Power Control Centers (PCC)
  • Chemical, Petrochemical & Fertilizer Processing Facilities
  • Steel, Metal Smelters & Heavy Machine Manufacturing
  • Water Supply, Sewage Treatment Plants (STP) & Desalination
  • Telecom Shelters, Data Centers & Server Room AC Automation
  • Building Management Systems (BMS) & Fire Annunciation Panels
OFFICIAL DISTRIBUTION & COMMERCIAL PROCUREMENT

Procurement, Support & Authorized Distribution

As an authorized distributor of industrial instrumentation and automation systems, Protech Marketing provides comprehensive technical consultation, 100% OEM warranty protection, spare parts availability, and expedited pan-India logistics. Explore our full Industrial Automation Products catalog, review our Proton Power Control Brand Solutions, or Contact our technical engineering team to request a quotation or customized architecture consultation today.

For international engineering datasheets and factory compliance standards, view official Proton Power Control Industrial Documentation →
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