NARVA HEAVY DUTY BATTERY MASTER ISOLATION SWITCH WITH REMOVABLE KEY CONTACTS RATED 250A 12VPart No. 61050 Type BATTERY MASTER SWITCH Brand NARVA Unit of Measure EACH Description Narva Heavy Duty Battery Master Isolation Switch with Removable Key (Contacts Rated 250A @ 12V) Warranty One Year Number of Terminals 2 Power Rating (Amp) 250 Switch Action On Off SPST Voltage 12 Lamp Colour s Not Applicable Mount Diameter 22mm Number of Poles 1 Number of Positions 2 Switch Type Battery Master Isolation Switch Illumination Non Illuminated Weight 0.