Albright International



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.



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The ED1200 has the following optional components available :

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Technical Information

Application Interrupted Uninterrupted
Thermal Current Rating 1200A 1200A
Intermittent Current Rating:
30% Duty 2190A 2190A
40% Duty 1895A 1895A
50% Duty 1695A 1695A
60% Duty 1550A 1550A
70% Duty 1435A 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 M.T.B.F >10000 Operations
Coil Voltage Available (Us) (Rectifier board required for A.C.) 0 - 0V


Component Configurations


ED1200 Catalogue Data Sheet Download
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