Mini Contour Battery Disconnect Switch - 275A ContinuousThis switch offers a number of unique features, the highlight being the Contour Locking System, allowing it to be a stand alone unit, or locked together with other switches. The control knob can be removed by switching to an counterclockwise 45 degree position. This control knob also features an interchangeable labeling system allowing a full range of applications (Item # 713 or 715). Three removable side plates provide access of up to 1/0 cables. The rear cover insulating the rear terminals against any short circuits. This ensures that the switch meets ABYC requirements. BEP Marine Battery Switch Test Procedures (UL 1107) Continuous (1 hour), intermittent (5 minutes) and Cranking (engine starting - 10 seconds). The test is to determine the maximum current the switch can handle for the stated time, without the rear terminals exceeding 100AdegC (212AdegF) above the ambient temperature. The continuous and intermittent ratings are tested at 110% of specified ratings. All BEP switches are tested Independently to this specification by a 3rd party laboratory.Features: Can be either surface or recess mounted by cutting a 2.1" (52 mm) hole Available with house knob (OEM # 701B-HB) or with chassis knob (OEM # 701B-CH) Tin-plated copper studs and nuts Ignition-protected WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.