The SD250 has been designed to provide a rapid means of disconnecting batteries or other power supplies in the event of serious electrical faults.
The SD250 combines the dual function of a manual disconnect and coil operated line contactor. The benefits of this design include compact size and reduced installation costs combined with an electrical capacity sufficient for small and medium size electric vehicles.
Whilst the switches are primarily intended for use with battery powered vehicles, they are also suitable for use with static power systems. All types are capable of safely rupturing full load battery currents in the event of an emergency.
|Thermal Current Rating||250A||250A|
|Intermittent Current Rating:|
|Rated Fault Current Breaking Capacity (Icn) 5ms Time Constant: (In accordance with UL583*)|
|Blowouts||1000A at 96V D.C.|
|No Blowouts||1000A at 48V D.C.|
|Rated Fault Current Breaking Capacity (Icn) Resistive Load: (In accordance with UL508*)|
|Maximum Recommended Contact Voltages|
|Typical Voltage Drop per pole across New Contacts at 250A||30mV|
|Mechanical Durability||> 3,000,000 Cycles|
|Coil Voltage Available (Us) (Rectifier board required for A.C.)||30 - 250V|
DIODE AND RESISTOR
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