Related Manuals for Littelfuse D0920
Summary of Contents for Littelfuse D0920
- Page 1 Arc-Detection Unit D0920 D0920 ARC-DETECTION UNIT REVISION 0-D-070616 Document Number: PM-1410-EN www.littelfuse.com • © 2016 Littelfuse • • 1/18...
- Page 2 D0920 Arc-Detection Unit Rev. 0-D-070616 This page intentionally left blank. www.littelfuse.com • © 2016 Littelfuse • • 2/18...
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Page 3: Table Of Contents
A0220 Point Sensor ....................14 5. ORDERING INFORMATION ..................15 6. WARRANTY ........................15 7. PERFORMANCE TEST ....................15 APPENDIX A D0920 REVISION HISTORY ............... 17 LIST OF FIGURES D0920 Arc Detection Unit ....................5 A0220 Point Sensor ....................... 5 D0920 Outline and Mounting Details ................ - Page 4 D0920 Arc-Detection Unit Rev. 0-D-070616 This page intentionally left blank. www.littelfuse.com • © 2016 Littelfuse • • 4/18...
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Page 5: Introduction
The D0920 requires a 230 Vac supply and supports up to three point sensors (A0220) mounted in a switchboard. On the occurrence of an arc fault, the D0920 detects the fault and pulses the trip output in less than 1 ms. The fast trip time reduces the risk of personal injury and equipment damage. -
Page 6: Operation
2.1.1 Sensor Adjust The D0920 sensitivity default is 6 mA of sensor output current to cause a trip. This is equivalent to a light intensity of 12,000 lux on a single sensor or 6,000 lux on each of two sensors. This means that the total light intensity on all sensors installed has to exceed 12,000 lux to cause a trip. -
Page 7: D0920 Outline And Mounting Details
D0920 Arc-Detection Unit Rev. 0-D-070616 FIGURE 3. D0920 Outline and Mounting Details. www.littelfuse.com • © 2016 Littelfuse • • 7/18... -
Page 8: D0920 Typical Wiring Diagram
DISCHARGE CIRCUIT WILL DISCHARGE THE STORAGE CAPACITOR TO A SAFE LEVEL WITHIN TWO MINUTES AFTER THE AC SUPPLY HAS BEEN DISCONNECTED. 2. RELAY CONTACT IS SHOWN DE-ENERGIZED. 3. RELAY CONTACT IS CLOSED WHEN TEST MODE IS SELECTED, OR DURING LOSS OF SUPPLY. FIGURE 4. D0920 Typical Wiring Diagram. www.littelfuse.com • © 2016 Littelfuse • •... -
Page 9: Installation
INSTALLATION 3.1 D0920 Arc-Detection Unit Outline and connection details are shown in Fig. 3. The D0920 can be DIN-rail mounted only. A typical wiring diagram is shown in Fig. 4. Connect supply voltage to terminals 5 (L1) and 6 (L2/N). The nominal supply voltage is 230 Vac. -
Page 10: A0220 Outline And Connections
D0920 Arc-Detection Unit Rev. 0-D-070616 FIGURE 5. A0220 Outline and Connections. www.littelfuse.com • © 2016 Littelfuse • • 10/18... -
Page 11: A0220 Mounting Details
1. ALL DIMENSIONS IN MILLIMETERS (INCHES). 2. AFFIX THE DRILL TEMPLATE WHERE THE SENSOR IS TO BE MOUNTED. FIGURE 6. A0220 Mounting Details. 3 kA 3 kA FIGURE 7. A0220 Detection Range for a 3 kA Fault. www.littelfuse.com • © 2016 Littelfuse • • 11/18... -
Page 12: Technical Specifications
Close on Loss of Supply or Test Mode UL Rating: 150 Vac, 0.46 A, 65 Vdc, 0.46 A Terminals: 11, 12 Unused Terminals: 13-16 Dimensions: Height: 90 mm (3.5”) Width: 105 mm (4.1”) Depth: 60.5 mm (2.4”) www.littelfuse.com • © 2016 Littelfuse • • 12/18... - Page 13 (on I/O ports) Conducted RF Immunity: IEC 60255-22-6 10 Vrms, 0.15-80 MHz, 80% AM (1 kHz) Power Frequency: IEC 60255-22-7 Class A – 150 V Differential Class A – 300 V Common Mode www.littelfuse.com • © 2016 Littelfuse • • 13/18...
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Page 14: A0220 Point Sensor
10 m (33 ft) included, 50 m (164 ft) maximum, use shielded 2-wire 20 AWG (0.5 mm ) when extending length IP Rating: IP65 Operating Temperature: -25 to 70°C (-13°F to 158°F) Storage Temperature: -25 to 70°C (-13°F to 158°F) www.littelfuse.com • © 2016 Littelfuse • • 14/18... -
Page 15: Ordering Information
Trip the D0920 by moving a light source close to a point sensor. When a trip occurs, the red TRIPPED LED will be on. Relay K1 (terminals 9 and 10) will be closed when the D0920 has tripped. -
Page 16: List Of Tables 1 Test Record
Repeat step d). i) Record the date and the results of the test on the attached test-record form. TABLE 1. TEST RECORD DATE TEST RESULTS Retain this record for the authority having jurisdiction. www.littelfuse.com • © 2016 Littelfuse • • 16/18... -
Page 17: Appendix A D0920 Revision History
March 11, 2015 0-C-031115 January 10, 2014 0-B-011014 October 21, 2013 0-A-102113 MANUAL REVISION HISTORY Revision 0-D-070616 D0920 front panel updated. Section 1 Fig.1 updated. Section 2 Multiple sections updated. Section 3 Fig. 5 updated. Section 4 CCC certification added. - Page 18 D0920 Arc-Detection Unit Rev. 0-D-070616 This page intentionally left blank. www.littelfuse.com • © 2016 Littelfuse • • 18/18...