DDC-1250/2-SK
6098957 DDC-1250/2-SK
6098957

DC switch disconnector, 1250 A, 2 pole, 1 N/O, 1 N/C, Without rotary handle and drive shaft, rear mounting
DC switch disconnector, Product range: DC switch-disconnector, Main switch, maintenance switch, Part group reference: DDC, Stop Function: optional, Without rotary handle and drive shaft, Information about equipment supplied: auxiliary contact fitted by user., 2 pole, Degree of Protection: IP20, Design: rear mounting, Rated uninterrupted current: Iu = 1250 A, Standards: IEC/EN 60947, VDE 0660, IEC/EN 60204, Switch-disconnector according to IEC/EN 60947-3

Product range	DC switch-disconnector Main switch maintenance switch
Part group reference	DDC
Stop Function	optional
Information about equipment supplied	Without rotary handle and drive shaft
Number of poles	auxiliary contact fitted by user.
Degree of Protection	2 pole
Design	1 N/O
Rated uninterrupted current [Iu]	1 N/C
Note on rated uninterrupted current !u	IP20
Standards	rear mounting
Certifications
Ambient temperature >Operation [ϑ]	1250 A
Ambient temperature >Storage [ϑ]	Rated uninterrupted current Iu is specified for max. cross-section.
Overvoltage category/pollution degree	IEC/EN 60947, VDE 0660, IEC/EN 60204 Switch-disconnector according to IEC/EN 60947-3
Rated impulse withstand voltage [Uimp]	CE, RoHs
Rated insulation voltage [Ui ]	-25 - +55 °C
Mounting position	-30 - +80 °C
Mechanical variables >Number of poles	III/3
Mechanical variables >Auxiliary contacts 1 N/O Mechanical variables >Auxiliary contacts 1 N/C Electrical characteristics >Rated uninterrupted current [Iu]	12 kV
Electrical characteristics >Note on rated uninterrupted current !u	1200 V
Rated short-time withstand current (1 s current) [Icw ]	As required
Note on rated short-time withstand current lcw	2 pole
Rated short-circuit making capacity [Icm]	1 N/O
Heat dissipation per pole, current-dependent [Pvid]	1 N/C
Lifespan, mechanical [Operations]	1250 A
DC >Utilization category DC­21B >Rated operational current switch >480 V [Ie]	Rated uninterrupted current Iu is specified for max. cross-section.
DC >Utilization category DC­21B >Rated operational current switch >600 V [Ie]	25000 Arms
DC >Utilization category DC­21B >Rated operational current switch >1000 V [Ie]	Current for a time of 1 second
Flat conductor connection with busbars	54.5 kAeff
Terminal screw	83 W
Tightening torque for terminal screw	5000
Rated operational current for specified heat dissipation [In]	1250 A
Heat dissipation per pole, current-dependent [Pvid]	1250 A
Equipment heat dissipation, current-dependent [Pvid]	1250 A
Static heat dissipation, non-current-dependent [Pvs]	2 x (80 x 5) mm2
Heat dissipation capacity [Pdiss]	M12 (2 x)
Operating ambient temperature min.	28 Nm
Operating ambient temperature max.	1250 A
10.2 Strength of materials and parts >10.2.2 Corrosion resistance	83 W
10.2 Strength of materials and parts >10.2.3.1 Verification of thermal stability of enclosures	0 W
10.2 Strength of materials and parts >10.2.3.2 Verification of resistance of insulating materials to normal heat	0 W
10.2 Strength of materials and parts >10.2.3.3 Verification of resistance of insulating materials to abnormal heat and fire due to internal electric effects	0 W
10.2 Strength of materials and parts >10.2.4 Resistance to ultra-violet (UV) radiation	-25 °C
10.2 Strength of materials and parts >10.2.5 Lifting	+55 °C
10.2 Strength of materials and parts >10.2.6 Mechanical impact	Meets the product standard´s requirements.
10.2 Strength of materials and parts >10.2.7 Inscriptions	Meets the product standard´s requirements.
10.3 Degree of protection of ASSEMBLIES	Meets the product standard´s requirements.
10.4 Clearances and creepage distances	Meets the product standard´s requirements.
10.5 Protection against electric shock	Meets the product standard´s requirements.
10.6 Incorporation of switching devices and components	Does not apply, since the entire switchgear needs to be evaluated.
10.7 Internal electrical circuits and connections	Does not apply, since the entire switchgear needs to be evaluated.
10.8 Connections for external conductors	Meets the product standard´s requirements.
10.9 Insulation properties >10.9.2 Power-frequency electric strength	Does not apply, since the entire switchgear needs to be evaluated.
10.9 Insulation properties >10.9.3 Impulse withstand voltage	Meets the product standard´s requirements.
10.9 Insulation properties >10.9.4 Testing of enclosures made of insulating material	Does not apply, since the entire switchgear needs to be evaluated.
10.10 Temperature rise	Does not apply, since the entire switchgear needs to be evaluated.
10.11 Short-circuit rating	Is the panel builder´s responsibility.
10.12 Electromagnetic compatibility	Is the panel builder´s responsibility.
10.13 Mechanical function	Is the panel builder´s responsibility.
Version as main switch	Is the panel builder´s responsibility.
Version as maintenance-/service switch	Is the panel builder´s responsibility.
Version as safety switch	The panel builder is responsible for the temperature rise calculation. Eaton will provide heat dissipation data for the devices.
Version as emergency stop installation	Is the panel builder´s responsibility. The specifications for the switchgear must be observed.
Version as reversing switch	Is the panel builder´s responsibility. The specifications for the switchgear must be observed.
Number of switches	The device meets the requirements, provided the information in the instruction leaflet (IL) is observed.
Max. rated operation voltage Ue AC	Yes
Rated operating voltage	Yes
Rated permanent current Iu	No
Rated permanent current at AC-23, 400 V	No
Rated permanent current at AC-21, 400 V	No
Rated operation power at AC-3, 400 V	1
Rated short-time withstand current lcw	0 V
Rated operation power at AC-23, 400 V	1000 - 1000 V
Switching power at 400 V	1250 A
Conditioned rated short-circuit current Iq	0 A
Number of poles	0 A
Number of auxiliary contacts as normally closed contact	0 kW
Number of auxiliary contacts as normally open contact	25 kA
Number of auxiliary contacts as change-over contact	0 kW
Motor drive optional	0 kW
Motor drive integrated	0 kA
Voltage release optional	2
Device construction	0
Suitable for ground mounting	0
Suitable for front mounting 4-hole	0
Suitable for front mounting centre	No
Suitable for distribution board installation	No
Suitable for intermediate mounting	No
Colour control element	Built-in device fixed built-in technique
Type of control element	Yes
Interlockable	No
Type of electrical connection of main circuit	No
Degree of protection (IP), front side	No
Degree of protection (NEMA)	No

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