Models 1686A & 1688A 3 - 14Volts DC Power Supplies Data Sheet B+K High Current DC Power Supplies are designed for continuous duty and are ideal for substituting car batteries. For servicing/demonstrating high-power car stereos, cellular phone products, camcorders, and ham radios. Hobbyists, retailers, and service shops use car batteries to power mobile equipment. Car batteries are heavy, leak acid, spark, can't tolerate shorted outputs, and must be recharged. These Power Supplies provide their maximum current output continuously hour after hour without overheating. For more output, just connect two or more in parallel or series. These are the only high-current supplies in their price range built to withstand continuous duty! The B+K Precision Models 1686A & 1688A are a high quality 3 to 14 Volt DC Power Supplies primarily designed for bench powering of automotive and marine electronic equipment. The Models 1686A &1688A have a maximum output current proportional to the voltage setting (see specifications chart). Two panel mounted meters continuously monitor the output voltage and current. 1688A Specifications models 1688A 1686A Models 1686A & 1688A Output Output Voltage Output Current DCV Output-Max DCA Variable Voltage - 3 to 14 volts DC output 20 A guaranteed @ 13.8V (Model 1688A) 12 A guaranteed @ 13.8V (Model 1686A) Current limiting overload protection Over voltage protection Short circuit protection Reverse polarity protection Thermostatically controlled cooling fan Thermal protection Operates continuously at full load without overheating Connect two in parallel for more current Connect two in series for higher voltage Line Regulation Ripple and Noise Metering Voltmeter Range Voltmeter Accuracy Ammeter Range Ammeter Accuracy General Power Requirements Power Consumption Operating Temperature Storage Temperature Dimensions (HxWxD) Weight 3 to 14 VDC Proportional to Output Voltage 3V -2.5A 3V -4.5A 5V - 4.5A 5V -7.5A 9V - 7.5A 9V -13A 12V - 10A 12V -20A 13.8V - 12A 13.8V -20A 14V - 12A 14V -20A (108-132VAC) 0.8% 10mVrms. 0-20V 0-30V 7% F.S 0-20A 0-30A 7% F.S 120/220 VAC 10%, 50/60 Hz. 400W 580W 32 to 104F (0 to 40C), 85% R.H. 5 to 158F (-15 to 70C), 75% R.H. 4.9 x 8.5 x 11.5" (124 x 216 x 292mm) 12.1 lbs. (5.5kg) 19.8lbs. (9kg) One Year Warranty Accessories SUPPLIED: Instruction Manual, Line Cord OPTIONAL: TL-30 Hook-up leads B&K Precision Corporation 22820 Savi Ranch Parkway, Yorba Linda, CA 92887 Tel: 714-921-9095, Fax: 714-921-6422 www.bkprecision.com Specifications subject to change without notice