Thanks for looking at this quality BLA marine part.  If this part does not have an image or does not have a detailed description (below) you will find it by looking in the relevant 2020 BLA Catalogue located at this link.

Please Note: We Sell by Part Number Only.  Images can be generic and may not represent the actual product.  Check in the 2020 BLA Catalogue if you are unsure.

Shipping: Is generally the same day or next day by airbag or road transport.  There are two shipping options for freight up to 3 kilos.  Parcels over 3 kilos generally go road transport.  If your freight is bulky, oversize or heavy then there may be additional freight charges.  You will be advised of these costs and billed in arrears.

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Returns:  BLA parts cannot be returned, nor exchanged nor refunded and are considered a special order.  Where an order is accepted back, a Return Authorisation must be approved and a restocking fee may apply.

The 721 heavy duty selector switch provides four possible operation settings, Off, Battery 1, Both and Battery 2 giving the choice of charging a selected battery or isolating current draw to a single battery. The switch can be recess mounted in an 85mm hole or surface mounted. Screw holes 5mm roundhead. Removable rear cover insulates the rear terminals against short circuit and removable side plates provide access for heavy duty battery cables. Please note this system will not separate electronics away from harmful engine starting spikes.

Specifications:
• Continuous rating: 350 amps DC between common and B1 or B2. 500 amps DC between common and B1 and B2.
• Intermittent rating: 500 amps DC
• Cranking rating: 1500 amps DC for 10 seconds
• Voltage rating: 48V DC maximum
• Terminal stud size: 3 x 10mm
• Base size: 102x89.4

See details below.

(113556)

SKU 113556