Vajra Star Delta Control Panels

Magnum manufactures heavy duty Vajra Star Delta Control Panels. You can choose from MaK-1 or MaU models.

Overview

1 Model, 2 Contactor Options

The Vajra range is built for higher H.P submersible pump motors, with an SDZ5 preventor for single-phasing, phase imbalance and wrong-sequence protection on both the MaK-1 and MaU contactor variants. Every model is fully detailed in the technical comparison table below.

Available Models

Technical Comparison

Compare Both Models

Full specification matrix across Enclosure, Contactor Model, OL Relay Model, Preventor, Indications and General Ratings.

↔ Scroll horizontally to compare all models
SpecificationVajra
PSDKPSDU
Enclosure
MaterialMild SteelMild Steel
Dimensions (L × B × H)395*375*175395*375*175
FinishPowder CoatedPowder Coated
ColourSingleSingle
Cable Entries1 Top + 1 Bottom1 Top + 1 Bottom
Enclosure CoverHingedHinged
MountingWall MountWall Mount
Contactor Model
ModelMaK-1MaU
Contactor TipsSilver tipped rivetsSilver tipped rivets
Contactor ExecutionOpenClose
Coil Voltage440V AC440V AC
Operating Voltage270-440V270-440V
OL Relay Model
ModelMaK-1, 4 PoleMaU, 3 Pole
OL Relay Range10, 14, 18, 21, 32 & 42A18, 21, 32 & 42A
O.L. ProtectionYes, Manual ResetYes, Manual Reset
Preventor
ModelSDZ5SDZ5
Single Phasing, Phase imbalance protectionYes - Voltage sensingYes - Voltage Sensing
Wrong sequence protectionYesYes
Settable On Delay Timer30 - 300 sec30 - 300 sec
Settable SD transition TimerYesYes
Auto/Manual/Bypass- OptionsYesYes
Supply fault indicationYesYes
Indications
Power OnLEDLED
Pump OnLEDLED
AmpsDigitalDigital
VoltsDigitalDigital
Power Range7.5, 10, 12.5, 15, 17.5 & 20 H.P12.5, 15, 17.5 & 20 H.P
Rated Current10, 14, 18, 21, 32 & 42A18, 21, 32 & 42A
Frequency50 Hz50 Hz
Wiring Termination
Connection WiringIn + Out Porcelain connectorsIn + Out Porcelain connectors
Insulation Voltage (Ui)
Weight in KG8.3609.560
Switching FeatureManualManual
Ambient Temperature-25°C to +55°C-25°C to +55°C
ApplicationsSubmersible Pump OnlySubmersible Pump Only