MSASMAIM24 Secondary Air Insulated Switchgear, SM AirSeT, Switch Unit

Switch

Secondary Air Insulated Switchgear, SM AirSeT, switch unit IM, 24kV, up to 630A, up to 20kA 3s, width 375 or 500mm

Switch

Secondary Air Insulated Switchgear, SM AirSeT, switch unit IM, 24kV, up to 630A, up to 20kA 3s, width 375 or 500mm

Specifications

Main
Master range : SeT Series
Range of product : SM AirSeT
Product name : SM AirSeT-24
Functional unit family : Switching function
Functional unit : Switching
device short name : IM
Complementary information : Switch unit
Integrated component name : AirPacT
Insulation technology : Air insulated switchgear
Type of Insulating gas : Pure air
Number of phases : 3
Network type : AC
Type of installation : Indoor
Busbar system : Single busbar
busbar description : Sleeved busbar
Standards : IEC 62271-200:2011
Rated voltage (Ur) : 24 kV
Rated short-duration power frequency withstand voltage (Ud) / Common value : 50 kV
Rated short-duration power frequency withstand voltage (Ud) / isolating distance : 60 kV
Rated lightning impulse withstand voltage (Up) / Common value : 125 kV
Rated lightning impulse withstand voltage (Up) / Across the isolating distance : 145 kV
Rated frequency (fr) : 50/60 Hz
Rated continuous current of busbars (Ir) : 630 A
Rated continuous current (Ir) : 630 A
Rated short-time withstand current (Ik) : 20 kA
Rated duration of short-circuit (tk) : 3 s
Rated peak withstand current (Ip) :
- 50 kA 50 Hz
- 52 kA 60 Hz
Filling level for insulation and/or switching (Pre rel.) : 110 kPa
Loss of service continuity category : LSC2A
Internal arc classification :
- AFLR
- AFL
Rated arc fault current (IA) : 20 kA
Rated arc fault duration (tA) : 1 s
Internal arc gas evacuation :
- Downwards inside the room
- Upwards outside the room
Partition class : PI

Complementary
Rated supply voltage of auxiliary and control circuits (Ua) : - 24/48/110/125/220 V DC
- 120/230 V AC 50/60 Hz
Degrees of protection provided by enclosures (IP code) :
- IP3X (units in switchboard)
- IP2X (between compartments)
Degree of protection of enclosure against external mechanical impacts (IK code) : IK08
Connectivity tier :
- Active
- Active plus
- Pro
Sensor type :
- TH110 thermal sensor
- CL110 environmental sensor
- VPIS voltage presence indicating system
Cable type :
- Single core
- Three core
Cable cross-section : 50 to 240 mm²
Number of cables per phase : Up to 2
Number of mechanical operations : 10000 operating cycles switch-disconnector
Classification for number of mechanical operations : M2 switch-disconnector
Classification for electrical endurance : E3 switch-disconnector
Classification for capacitive currents : C2 switch-disconnector
Type of operating mechanism :
- CDT
- CD2
Auxiliary contact composition :
- 2 NO + 2 NC switch
- 5 NO + 5 NC disconnector
Fault passage indicator :
- Flair 21D
- Flair 22D
- Flair 23DM
- Ammeter 21D
Arc fault detector : Easergy Vamp 121
Interlocking type : Mechanical
type of keylock :
- Flat
- Tubular
Key interlock type :
- A3
- A4
- P1
Mass:
- 127 kg for IM 375 mm
- 137 kg for IM 500 mm
Height : 1600 mm
Width :
- 375 mm
- 500 mm
Depth : 1030 mm

Environment
Ambient air temperature for operation : -5…40 °C
Ambient air temperature for storage : -40…70 °C
Humidity conditions :
- Average relative humidity over 24 h <= 95 %
- Average relative humidity over 1 month <= 90 %
Operating altitude : <= 1000 m

Packing Units
Unit Type of Package 1 : PCE
Number of Units in Package 1 : 1