The Metron Eledyne explosion protected D.C Battery Isolation Unit Type EExd/DC/ISOL/94 has been specifically designed to fully isolate both +ve and -ve poles of a dual or single battery diesel engine start system in a hazardous gas condition.
The unit has an explosion rating of EExd IIB T6 to B.S. 5501 parts 1 & 5 with ingress protection to IP66
Each pole of the isolator contactors will intermittently carry and break currents up to 1500 amps and are related to carry engine cranking currents up to 850 amps for 90 secs (6 cranks of 15 secs) at voltages of 12 or 24V.Dc
Control circuit outputs are provided from the +ve and -ve supplies and are protected by 60 amp thermal magnetic circuit breakers resettable from the front of th isolation unit without the need to open the door.
Suitable for PUMP and GENERATING SETS and generally compatible with systems meeting the requirements of NFPA No.20
Provision for incoming and outgoing cables are provided for by pre-drilled cable gland entries, up to M40 max currency in the base and side of the unit.