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Automotive Power Distribution Unit
User Manual
Model:
PDU-31SS
Table of Contents
Product Overview.....................................................................................................................................................................................................2
Introduction/Features/Technical Specifications..................................................................................................................................................3
Warnings....................................................................................................................................................................................................................4
Installation.................................................................................................................................................................................................................5
Wiring Diagram.........................................................................................................................................................................................................6
Wire Gauge Size Tables............................................................................................................................................................................................7
Modes of Operation.................................................................................................................................................................................................8
Programming Low Voltage Shutdown and Timed Shutdown.............................................................................................................................9
Package Contents...................................................................................................................................................................................................10
Warranty and Product Return Policy..................................................................................................................................................................12
July 30th, 2019
212-0024-SS
1
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Summary of Contents for D&R ELECTRONICS PDU-31SS
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Page 1: Table Of Contents
Automotive Power Distribution Unit User Manual Model: PDU-31SS Table of Contents Product Overview………………………………………………………………………………………………………………………………………………………………………..……2 Introduction/Features/Technical Specifications……….……………………………………………………………………………………………………………………….3 Warnings…………………………………………………………………………………………………………………………………………………………………………………………..4 Installation………………………………………………………………………………………………………………………………………………………………………………………..5 Wiring Diagram………………………………………………………………………………………………………………………………………………………………………………...6 Wire Gauge Size Tables……………………………………………………………………………………………………………………………………………………………………..7 Modes of Operation………………………………………………………………………………………………………………………………………………………………………….8 Programming Low Voltage Shutdown and Timed Shutdown……………………………………………………………………………………………………………..9 Package Contents……………………………………………………………………………………………………………………………………………………………………………10 Warranty and Product Return Policy……………………………………………………………………………………………………………………………………………...12... -
Page 2: Product Overview
Product Overview Figure 1: PDU-31SS July 30th, 2019 212-0024-SS... -
Page 3: Introduction/Features/Technical Specifications
Introduction The PDU-31SS is designed to provide automotive emergency and public service vehicle equipment installers with a solid state, single point power distribution system for installed electrical devices. The installation is fast, reliable and safe. It offers programmable low battery voltage shutdown, programmable timed shut- down, power distribution and equipment protection. -
Page 4: Warnings
Maintenance The PDU-31SS does not require user maintenance except for individual fuse replacements. Warning Do not attempt to open or repair. Contact your local distributor or D&R Electronics for repair. -
Page 5: Installation
Mechanical Installation The PDU-31SS may be mounted anywhere inside the vehicle away from heat, moisture or the elements. NOTE the PDU is not weather tight. Do not mount it in the engine compartment, on the exterior of the ve- hicle or an area where moisture, dirt or other contaminants can fall into the exposed areas of the PDU. En- sure that the mounting location is flat and the device is secured to solid vehicle body parts. -
Page 6: Wiring Diagram
Wiring Diagram Figure 2: Wiring July 30th, 2019 212-0024-SS... -
Page 7: Wire Gauge Size Tables
Table 1: Recommended Input Power Feed Wire Size Max. Total Load Wire Size (AWG) vs Wire Length (3% drop) Current Amps <5 ft. 5-10 ft. 10-15 ft. 15-20 ft. 25-30 ft. #3/0 #2/0 #4/0 Table 2: Recommended Circuit Load Wire Size Max. -
Page 8: Modes Of Operation
Modes of Operation Standby Mode In Standby Mode the PDU is dormant with zero consumption. It awakes either by turning the ignition or by depressing the test switch. The test switch will turn on all outputs for two minutes and if no other action is taken during this time, the PDU will do dormant again. -
Page 9: Programming Low Voltage Shutdown And Timed Shutdown
Low Voltage Shutdown Setup The PDU-31SS’ factory default LOW VOLTAGE SHUTDOWN value is set to 11.5 VDC for both Group 1 and Group 2 out- puts. This value can be adjusted by the user for each of the two output groups separately by following these steps: ... -
Page 10: Package Contents
Package Contents Part Number Description PDU-31SS PDU-31SS unit w/ 31 out, display, dual programmable timer and voltage 212-0024-31SS Manual PDU-31SS unit Designator sheet for PDU-31SS to record all setup installation data NOTE; MINI and MAXI fuses are available for purchase. - Page 11 NOTES July 30th, 2019 212-0024-SS...
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Page 12: Warranty And Product Return Policy
WARRANTY D & R Electronics warrants its new products to be free from defects in material and workmanship, un- der normal use and service for a period of one year on parts replacement. This warranty applies only to original purchasers acquiring the product directly from D&R Electronics, or its authorized dealers.
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