Delivery program

Product range
Switchgear for photovoltaic systems
Subrange
String circuit-breakers
Product range
String circuit-breakers
Application field
Utility buildings
Open areas
Rated operational voltage [Ue]
900 V
Protection class
2
Number of conductors
2 pole
Rated operational current at DC-21A [Ie]
20 A
Admissible short-circuit current for solar modules [ISC]
9 - 15 A
Setting range
Overload releases [Ir ]Overload release, min. [Ir]
16 A
Overload releases [Ir ]Overload release max.
20 A
Connection technique
Screw terminals
Design
open
Notes
   
  
AccessoriesPage
2 auxiliary contacts NHI-E→ 082882
3 shunt releases A-PKZ0→ 073187
3 undervoltage releases U-PKZ0→ 073135

Technical data

Rated operational current at DC-21A [Ie]
20 A
Number of poles
2 pole
Rated operational voltage [Ue]
900 V
Thermal trip
1.05 - 1.3 x Ie
Electromagnetic trip block
6 x Ie
Standards
IEC/EN 60947‐2
TÜV-certified
Climatic proofing
Damp heat, constant, to IEC 60068-2-78
Damp heat, cyclic, to IEC 60068-2-30
Ambient temperature
Open
-25 - +60 °C
Mounting position
121N001210N015
Dimensions
Width
58 mm
Height
93 mm
Depth
76 mm
Top-hat rail
35 mm
Weight
0.32 kg
Terminal capacities
Flexible with ferrule
1 x (1 - 6)
2 x (1 - 6) mm2
Solid or stranded
18 - 14 AWG
Internal resistance
12 mΩ

Design verification as per IEC/EN 61439

Technical data for design verification
Rated operational current for specified heat dissipation [In]
20 A
Heat dissipation per pole, current-dependent [Pvid]
1.6 W
Equipment heat dissipation, current-dependent [Pvid]
4.8 W
Static heat dissipation, non-current-dependent [Pvs]
0 W
Heat dissipation capacity [Pdiss]
0 W
Operating ambient temperature min.
-25 °C
Operating ambient temperature max.
+60 °C
IEC/EN 61439 design verification
10.2 Strength of materials and parts10.2.2 Corrosion resistance
Meets the product standard's requirements.
10.2 Strength of materials and parts10.2.3.1 Verification of thermal stability of enclosures
Meets the product standard's requirements.
10.2 Strength of materials and parts10.2.3.2 Verification of resistance of insulating materials to normal heat
Meets the product standard's requirements.
10.2 Strength of materials and parts10.2.3.3 Verification of resistance of insulating materials to abnormal heat and fire due to internal electric effects
Meets the product standard's requirements.
10.2 Strength of materials and parts10.2.4 Resistance to ultra-violet (UV) radiation
Meets the product standard's requirements.
10.2 Strength of materials and parts10.2.5 Lifting
Does not apply, since the entire switchgear needs to be evaluated.
10.2 Strength of materials and parts10.2.6 Mechanical impact
Does not apply, since the entire switchgear needs to be evaluated.
10.2 Strength of materials and parts10.2.7 Inscriptions
Meets the product standard's requirements.
10.3 Degree of protection of ASSEMBLIES
Does not apply, since the entire switchgear needs to be evaluated.
10.4 Clearances and creepage distances
Meets the product standard's requirements.
10.5 Protection against electric shock
Does not apply, since the entire switchgear needs to be evaluated.
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
Is the panel builder's responsibility.
10.8 Connections for external conductors
Is the panel builder's responsibility.
10.9 Insulation properties10.9.2 Power-frequency electric strength
Is the panel builder's responsibility.
10.9 Insulation properties10.9.3 Impulse withstand voltage
Is the panel builder's responsibility.
10.9 Insulation properties10.9.4 Testing of enclosures made of insulating material
Is the panel builder's responsibility.
10.10 Temperature rise
The panel builder is responsible for the temperature rise calculation. Eaton will provide heat dissipation data for the devices.
10.11 Short-circuit rating
Is the panel builder's responsibility. The specifications for the switchgear must be observed.
10.12 Electromagnetic compatibility
Is the panel builder's responsibility. The specifications for the switchgear must be observed.
10.13 Mechanical function
The device meets the requirements, provided the information in the instruction leaflet (IL) is observed.

Technical data ETIM 7.0

Low-voltage industrial components (EG000017) / Power circuit-breaker for trafo/generator/installation protection (EC000228)
Electric engineering, automation, process control engineering / Low-voltage switch technology / Circuit breaker (LV < 1 kV) / Circuit breaker for power transformer, generator and system protection (ecl@ss10.0.1-27-37-04-09 [AJZ716013])
Rated permanent current Iu
20 A
Rated voltage
900 - 900 V
Rated short-circuit breaking capacity lcu at 400 V, 50 Hz
0 kA
Overload release current setting
14 - 20 A
Adjustment range short-term delayed short-circuit release
0 - 0 A
Adjustment range undelayed short-circuit release
120 - 120 A
Integrated earth fault protection
No
Type of electrical connection of main circuit
Screw connection
Device construction
Built-in device fixed built-in technique
Suitable for DIN rail (top hat rail) mounting
Yes
DIN rail (top hat rail) mounting optional
Yes
Number of auxiliary contacts as normally closed contact
0
Number of auxiliary contacts as normally open contact
0
Number of auxiliary contacts as change-over contact
0
With switched-off indicator
No
With under voltage release
No
Number of poles
2
Position of connection for main current circuit
Other
Type of control element
Turn button
Complete device with protection unit
Yes
Motor drive integrated
No
Motor drive optional
No
Degree of protection (IP)
IP00

Approvals

Specially designed for North America
No

Characteristics

Characteristic curves
Characteristic curve
1210DIA-8
tripping characteristics

Dimensions

1210DIM-28