MDS-840 EO/DO (Front View) 
MDS-840 EO/DO (Rear View)
Part/Catalog Number: MDS-840 EO/DO
Original Manufacturer: Eaton / Cutler Hammer
Product Line: Magnum DS
Amps: 4000A Frame
Operation: Electrically Operated
Mounting: Draw-out
Trip Unit: Digitrip 1150+ LSIG [11ARMLSIG]
Voltage: 600V Max
Interrupting Capacity: 85kAIC
Description: The Eaton MDS-840 is a 4000A Frame, Electrically Operated, Draw-out Style Insulated Case Circuit Breaker. It was originally outfitted with the Digitrip 520, 520M, 1150 or 1150+ trip unit, however, new trip unit models are available. Although the unit photographed is a electrically operated unit, manually operated breakers are also available. This unit’s full catalog number is MDS8403WEA401GANANAYMANAX
MDS-840 EO/DO Parts & Resources:
– Charging Motors
– Trip Coils
– Close Coils
– Relays
– Arc Chutes
– Contact Assemblies
– Operating Mechanism Parts
– Auxiliary Switches
– Control Devices
– Undervoltage Trip Device
– Trip Units
– Primary Disconnect & Finger Clusters
– Secondary Disconnects
– Maintenance Tools
– Switchgear Parts
– Draw-out Parts
– Renewal Parts Guide
– Maintenance Manuals