Albright International

ED1800

EMERGENCY DISCONNECT

The ED1800 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 ED1800 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 ED1800 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.

Precautions:

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 ED1800 has the following optional components available :

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Technical Information

Application Interrupted Uninterrupted
Thermal Current Rating 1800A 1800A
Intermittent Current Rating:
30% Duty 3285A 3285A
40% Duty 2845A 2845A
50% Duty 2545A 2545A
60% Duty 2325A 2325A
70% Duty 2150A 2150A
Rated Fault Current Breaking Capacity (Icn) 5ms Time Constant: (In accordance with UL583*)
Blowouts -
No Blowouts 2700A 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 1800A 50mV
Mechanical M.T.B.F >10000 Operations
Coil Voltage Available (Us) (Rectifier board required for A.C.) 0 - 0V

Features

Component Configurations
Auxiliary
Auxilary---Standard
STANDARD

Downloads

Resources
ED1800 Catalogue Data Sheet Download
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