The ED1200 range of switches have been designed to provide a rapid means of disconnecting batteries or other power supplies in the event of serious electrical faults.  Designed for use with uninterrupted high current battery powered systems such as those found in Telecommunication Power Distribution Units, all types are capable of safely rupturing full load battery currents in the event of an emergency.

The ED1200 is a manually operated device with a snap action for both opening and closing of the main contacts.  They have paralleled double breaking contacts with silver alloy tips which are weld resistant, hard wearing and have excellent conductivity.  The ED1200 is easy to install (see drilling details) and can be mounted using the main terminal busbars or secured with supplied M5 posidrive mounting screws on the frame of the device.


The switch is to be used to rupture current in an emergency or as a no-load isolator.

Do not use as a regular On-Load Switching Device.



ED1200 Technical Information

InterruptedRating ( Ith )Uninterrupted
Thermal Current Rating - 1200A
Intermittent Current Rating:
30% Duty - 2190A
40% Duty - 1895A
50% Duty - 1695A
60% Duty - 1550A
70% Duty - 1435A
Rated Fault Current Breaking Capacity (Icn) 5ms Time Constant: (In accordance with UL583*)
Blowouts -
No Blowouts 1800A at 60V D.C.
Rated Fault Current Breaking Capacity (Icn) Resistive Load: (In accordance with UL508*)
Blowouts -
No Blowouts -
Maximum Recommended Contact Voltages
Blowouts - -
No Blowouts - 60V
Typical Voltage Drop per pole across New Contacts at 1200A 50mV

Mechanical Durability > 10,000 Cycles
Coil Voltage Available (Us) (Rectifier board required for A.C.) 0 - 0V

ED1200 Features

Component Configurations

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