77 BATTERY MANAGEMENT bluesea.com Related Products ML Series Automatic Charging Relays 500 Amp magnetic latching (bi-stable) relay automatically combines batteries during charging and isolates batteries when discharging and when starting engine • Magnetic Latching (ML) relay draws very low current in the ON state • Start Isolation (SI) can be configured for temporary isolation of House loads from Engine circuit during engine cranking to protect sensitive electronics • Engine Isolation (EI) can be configured for isolation of two engines while both are running to protect engine electronics and maximize alternator output • Manual override knob provides an added level of safety allowing control with or without power and offering LOCKED OFF capability for servicing • Senses charging on two battery banks • LED output to remotely indicate switch state - requires optional LED or Remote Control Contura Switch with integrated LED (included in retail package) • 3/8"-16 tin-plated copper studs for maximum conductivity and corrosion resistance • One-piece stainless flange nuts ensure safe and secure connections • Silver alloy contacts provide high reliability for live switching • Remote Control Contura Switch 2146 included in retail package Specifications Live Current Switching 300A @ 12V DC-10,000 Cycles Relay Contact Position 12V DC 24V DC Combine (30 sec.) 13.5V DC 27.0V DC (2 min.) 13.0V DC 26.0V DC Open (10 sec.) 12.35V DC 24.7V DC (30 sec.) 12.75V DC 25.5V DC Over Voltage Lockout 16.2V DC 32.4V DC Under Voltage Lockout 9.6V DC 19.2V DC Under Voltage Recovery 10.0V DC 20.0V DC Regulatory Emarked, meets ISO 8846 and SAE J1171 external ignition protection requirements IP66 - protected against powerful water jets (see inside back cover) Part# Coil Volts Cable End Manual Control Packaged 7620 12V DC Stripped Wire No Retail 7620100B 12V DC Deutsch DTM No Bulk 7622 12V DC Stripped Wire Yes Retail 7622100B 12V DC Deutsch DTM Yes Bulk 7621 24V DC Stripped Wire No Retail 7621100B 24V DC Deutsch DTM No Bulk 7623 24V DC Stripped Wire Yes Retail 7623100B 24V DC Deutsch DTM Yes Bulk 7620 ML Series Remote Battery Switches page 70 7622 Wire Size and Current Ratings MRBF Terminal Fuse Blocks page 92 For the full list of specifications see page 79 For the dimension drawing see page 70 Wire Size Cranking 30 sec. Intermittent 5 min. Continuous (UL 1107) 2/0 AWG (70 mm²) 1,000A 400A 225A 4/0 AWG (120 mm²) 1,100A 400A 300A 2× 4/0 AWG (2x 120 mm²) 1,450A 700A 500A bluesea.com/video Paralleling Link Bus page 70 Remote Control Contura Switch Action: ON-OFF-ON Deutsch DTM Cable End provided on bulk units. Other connector plugs are available for high volume OEM applications
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