The DCA5-20PC-1-DC1-RL-C is a 500A sub-miniature DC Ammeter with LED display and +5 to 40VDC non-isolated power. The DCA5-20PC series ammeter are housed in 1.38 x 0.88-inch rugged packages that feature a large, 0.37-inch high, LED display. The display visibility is not compromised in any way: the display can be easily read at distances up to 15ft. All input and power supply connections are made by way of two screw-style terminal blocks. For added flexibility, computer-style jumpers are provided for range-specific decimal point assignments. To ensure trouble free installation include reverse-polarity protected power supply inputs.