Here are the simple parameters of ABB OS20FB12A1 OS series switch fuses:
General Information
Brand: ABB
Range: OS
Fused/Non - fused: Fused (fuse switch)
Type: Base mounting
Electrical Parameters
Number of Poles: 3
Maximum Current: 20A
KW Rating AC - 23A: 400V 7.5kW
Operational Voltage Ue: 500V
Rated Frequency: 50Hz or 60Hz
Rated Insulation Voltage Ui: To be determined (usually similar to relevant standards in the OS series)
Rated Short - time Withstand Current Low Voltage Icw: For 1s 2.5kA rms (approximate value, may vary)
Rated Conditional Short - circuit Current Inc: (690V) 80kA (approximate value, subject to specific product details)
Physical Parameters
Height: 97mm
Width: 106mm
Depth: 105mm
Weight: 0.63kg
Other Parameters
IP Rating: IP65 on handle
Flexible Cable Capacity with Ferrule: 2.5 - 25mm²
Fuse Type: A1
Standards: IEC 60947 - 3
Mounting: Din rail, screw fixing