Built to Automate

Built to Automate
Built to Automate
  • Home
  • About us
  • System Solutions
    • Protection Systems
    • Substation Automation SAS
    • Telemetry Systems for LDC
  • Hydro Power
    • Hydro Power
    • Digital Control Systems
    • Power SCADA
  • Product Portfolio
  • Industry Solutions
  • Product Portfolio
    • Annunicators
    • Transducers
    • Aux Relays
    • RTB & RTP
    • Remote IO Modules
    • Interface boards
    • Protection Relays
  • Services
  • Contact us
  • Downloads
  • Project Updates
  • More
    • Home
    • About us
    • System Solutions
      • Protection Systems
      • Substation Automation SAS
      • Telemetry Systems for LDC
    • Hydro Power
      • Hydro Power
      • Digital Control Systems
      • Power SCADA
    • Product Portfolio
    • Industry Solutions
    • Product Portfolio
      • Annunicators
      • Transducers
      • Aux Relays
      • RTB & RTP
      • Remote IO Modules
      • Interface boards
      • Protection Relays
    • Services
    • Contact us
    • Downloads
    • Project Updates
  • Home
  • About us
  • System Solutions
    • Protection Systems
    • Substation Automation SAS
    • Telemetry Systems for LDC
  • Hydro Power
    • Hydro Power
    • Digital Control Systems
    • Power SCADA
  • Product Portfolio
  • Industry Solutions
  • Product Portfolio
    • Annunicators
    • Transducers
    • Aux Relays
    • RTB & RTP
    • Remote IO Modules
    • Interface boards
    • Protection Relays
  • Services
  • Contact us
  • Downloads
  • Project Updates

Products We Have developed

Remote I/O Modules

The Remote I/O Module provides reliable digital and analog I/O capabilities with RS485 Modbus communication, high-speed data transfer, and LED status indication. Its compact DIN-rail design makes it suitable for SCADA/DCS expansion, building automation, substation automation, monitoring, and industrial control applications.

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Transducers

The module offers high accuracy and linearity error performance, with standard input signals of 4–20 mA, 0–5 V, and 0–10 V, and output options of 0–100 mA, 0–500 mA, and 0–1 A. It provides 3000 VDC signal input/output isolation, supports 12 V, 15 V, and 24 V auxiliary single power supply, and ensures isolation between the auxiliary power supply and output signal. The module is designed for standard DIN rail mounting and operates reliably across an industrial temperature range of −45°C to +85°C. 

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Interface Boards

 Engineered for mission-critical automation systems, this unified Digital Input and Output Interface Board provides reliable signal conditioning, isolation, and power distribution between field devices and central control systems (PLC/DCS/SCADA). Featuring opto-isolated inputs, high-capacity relay outputs, dual Modbus redundancy, and extensive circuit protection, it significantly reduces panel wiring, commissioning time, and overall installation complexity.  

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Protection Relays

As an authorized EcoXpert partner of Schneider Electric, Nelumbo provides full-scope numerical protection relays, Bay Control Units (BCUs), Remote Terminal Units (RTUs), and turnkey retrofit/replacement upgrades across utility and industrial power distribution networks.  

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Aux Relays

 Designed for critical power distribution networks and industrial control panels, this family of specialized auxiliary relays provides real-time circuit supervision, safety interlocks, and circuit breaker health monitoring to ensure high system availability and reliable protection operations.  

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Annunciator

Engineered for critical real-time fault monitoring in power substations, process control plants, and industrial control panels, this advanced Alarm Annunciator system provides visual and audible alarm management. Built on high-performance single-chip microcontroller architecture, it delivers rapid response times, configurable sequence logic, and robust electrical isolation to ensure operational safety and system reliability. 

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Relay Test Block & Test Plug

Engineered for secondary injection testing, maintenance, and isolation of protection relays, the Relay Test Block (RTB) and Relay Test Plug (RTP) assembly provides a safe, reliable interface for testing substation protection schemes without disturbing panel wiring or open-circuiting Current Transformer (CT) secondaries. 

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Nelumbo Technologies Pvt Ltd

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