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Diya Series


  • Rated Voltage: 12kV, 24kV, 36kV
  • Rated Current: 800A, 1250A, 1600A, 2000A
  • Rated short circuit: 25KA


  • Mid mounted cassette
  • Roll on floor

Indoor and Outdoor versions
Suitable for line up of panels

Configure your product

Diya series of medium voltage metal clad switchgear panels are designed from 3.3kV to 36kV. their robust construction enables them to function well even in harsh environment conditions. the design is made compact without compromising on the safety features, yet offering a wide flexibility in metering and protection schemes to suit customer’s needs.

Embedded Current and Voltage Sensors

Current sensors and voltage sensors are a direct replacement to current and potential transformers. When incorporated into Metal clad switchgear it makes your switchgear failure free.

Embedded Current and Voltage Sensors

Current and voltage sensors are designed for both metering and protection, covering all your specification in one design with added benefits.

Protection Class: 5P40
Metering: 0.2s

Feeder Manager (MF790c)​

MF790c is a comprehensive numerical relay with in built metering, protection, control, communication and annunciation, covering all your metering and protection schemes.

  • 64 energy parameters
  • Maximum demand controller
  • Cold load pick up
  • Trip circuit supervision healthy


  • Capacitor bank switching​
  • Transformer switching​
  • Motor switching​
  • Feeder switching​
  • Furnace switching​

Market Segments​

  • Utilities (primary and secondary)​
  • Generation​
  • Industries​
  • Large Buildings​
  • Oil & Gas​
  • Infrastructure​
Parameters 12kV 24kV 36kV
Rated Voltage 12kV 24kV 36kV
Rated Current 1250A,1600A,2000A 1250A 1250A,1600A,2000A,2500A
Short time current withstand capacity 25kA 25kA 25kA/31.5kA
Rated Frequency 50Hz.
Power frequency withstand voltage 28kV(rms) for_min 50kV(rms) for_min 70kV(rms) for_min
Lightning impulse withstand voltage 75kV peak 125kV peak 170kV peak
Rated short circuit breaking current 25kA
Rated short circuit making current 62.5kA
Internal arc withstand capacity 25kA/1sec
Degree of protection for overall enclosure (outdoor) IP 55
Degree of protection for overall enclosure (indoor) IP 4X
Design ambient temperature 50̊C
Rated insulation level 12/28/75 24/50/125 33/70/170
Type of access Bottom / Top / Side
Site extensibility Future Extensible Available
Loss of service continuity LSC-2B LSC-2B LSC-2B
Operating Sequence O-0.3sec.-CO-3min-CO
Circuit breaker type Roll on floor/Mid mount cassette type Roll on floor
Breaking medium Vacuum
Operating Mechanism Spring
Mechanical life 10,000 Operations
Electrical life at rated current E2 Operations
Auxiliary voltage 24V DC,230V DC,110V DC,220V DC
Relevant standards IS/IEC 62271-1, 100, 200, IEC 60529, IEC 61869-2

Applicable Standards

  •  IEC 62271-1: High-voltage switchgear and controlgear: common specifications
  •  IEC 62271-200: AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and
    up to and including 52 kA
  •  IEC 62271-100: High-voltage switchgear and controlgear – Alternating current circuit-breakers​​
  •  IEC 62271-106: High-voltage switchgear and controlgear – Alternating current contactors,contactor-based controllers and motor-starters
  •  IEC 62271-103: High-voltage switchgear and controlgear – Switches for rated voltages above 1 kV up to and including 52 kv
  •  IEC 62271-102: High-voltage switchgear and controlgear – Alternating current disconnectors and earthing switches
  •  IEC 61869-2: Instrument transformers – Current transformers
  •  IEC 61869-3: Instrument transformers – Inductive voltage transformers
  •  IEC 60044-8: Instrument transformers – Electronic current transformers
  •  IEC 62271-105: High-voltage switchgear and control gear – Alternating current switch-fuse combinations
  • Description 12kV
  • Nominal System Voltage 11kV
  • Highest System Voltage 12kV
  • Rated One Minute Power Frequency Withstand Voltage 28kV
  • Rated Lightning Impulse Withstand Voltage 75 kVp
  • Rated Continuous Current up-to 1250A
  • Rated Short Circuit Breaking Current 25kA
  • Rated Short Circuit Making Current 62.5kAp
  • Rated Short Time Withstand Current 25kA/3sec.
  • Rated Peak Withstand Current 62.5kAp
  • Rated Operating sequence 0-0.3sec.-CO-3min-CO
  • Degree of Protection (Indoor) IP4x
  • Degree of Protection (Outdoor) IP55
  • Standards IS/IEC 62271-1, 100, 200, IEC 60529
  • Current Sensing Rating Available 60A, 250A & 750A
  • Voltage Sensing Rating 11kV/√3 / 2V/√3
  • Accuracy of Multifunction Meter in the Feeder Manager class 0.2S
  • Auxiliary Voltage Range for the Feeder Manager 18V to 75V DC or 80V to 280VDC