POWR-ARD round-fault Protection SERIES round-fault Indication System Manual round-fault Indication System March 9, 2012 REVISION 6 POWR-ARD SERIES A B C ROUND FAUT PRESENT WHEN ANY INDICATOR OFF Phase Voltage: 208-600 Vac, 50/60 Hz Phase Current: 50 ma Maximum amp-test Supply: 1 VA, ac 50/60 Hz Rev: 00 Serial No: EXXXXYYYYY 1-800-TEC-FUSE (1-800-832-3873) Made in Saskatoon, Canada C R US R 53428 Copyright 2012 by ittelfuse, Inc. All rights reserved. Publication: -M Document: P95-EPI0-00000 Printed in Canada
Page i round-fault Indication System Rev. 6 TABE OF CONTENTS Page 1. FEATURES... 1 2. DESCRIPTION... 1 3. INSTAATION... 1 4. TECHNICA SPECIFICATIONS... 4 IST OF FIURES Page 1. Outline and Mounting Details... 1 2. Connection Diagram for an Ungrounded 240- to 600-V System... 2 3. Connection Diagram for Ungrounded Systems above 600 V... 2 4. Connection Diagram for a Resistance-rounded System up to 600 V... 3 5. Connection Diagram for a Resistance-rounded System above 600 V.. 3 DISCAIMER Specifications are subject to change without notice. ittelfuse, Inc. is not liable for contingent or consequential damages, or for expenses sustained as a result of a malfunction, incorrect application, or incorrect adjustment. Pub. -M. March 9, 2012 www.littelfuse.com 2012 ittelfuse POWR-ARD
Page 1 round-fault Indication System Rev. 6 1. FEATURES reen ED s indicate presence of voltage to ground for each phase of a power system. o A ground fault (or phase loss) is indicated when a set of ED s is off. o ED s are on when phase-to-ground voltage exceeds 30 Vac. o Redundant ED s are used for reliability. Pressing causes all ED s to light. Note: The feature requires an isolated ac supply. Direct connection for voltages up to 600 Vac line to line. o Potential transformers (PT s) are required for voltages greater than 600 Vac. Provides faulted-phase indication for resistancegrounded systems and ungrounded systems. 2. DESCRIPTION The is a self-powered ground-fault indication system. Presence of phase-to-ground voltage is indicated by redundant ED s (two per phase). The respective phase ED s are off when phase-to-ground voltage is less than 30 Vac. The meets the National Electrical Code requirements for ground detectors for ungrounded alternating-current systems as defined in NEC 250.21. It also meets the Canadian Electrical Code requirements for ungrounded alternating-current systems in accordance with CEC 10-106(2). 3. INSTAATION Outline and panel-mounting details are shown in Fig. 1. For 208- to 600-Vac systems, connect the directly to the three-phase bus. For 208- or 240-volt installations, use terminals A, B, and C. For systems above 240 V and up to 600 V use terminals AH, BH, and CH. See Figs. 2, 3 and 5. For systems above 600 V, install PT s as shown in Figs. 4 and 6. Connect terminal and chassis-bonding terminal ( ) to ground. For connect ac supply to terminals and. Connection and use of circuit is optional. 108.0 (4.25) 95.3 (3.75) 6.4 (0.25) 95.3 (3.75) FACEPATE OUTINE 6.4 (0.25) POWR-ARD SERIES 4.0 (0.16) DIA A B C 69.9 (2.75) 76.2 (3.00) ROUND FAUT PRESENT WHEN ANY INDICATOR OFF Phase Voltage: 208-600 Vac, 50/60 Hz Phase Current: 50 ma Maximum amp-test Supply: 1 VA, ac 50/60 Hz Rev: 00 Serial No: EXXXXYYYYY 1-800-TEC-FUSE (1-800-832-3873) Made in Saskatoon, Canada R R 53428 C US FRONT 76.2 (3.00) 88.9 (3.50) 3.2 (0.13) 6.4 (0.25) R 101.6 (4.00) MOUNTIN DETAI 52.4 (2.06) C CH B BH A AH SIDE FIURE 1. Outline and Mounting Details. Pub. -M. March 9, 2012 www.littelfuse.com 2012 ittelfuse POWR-ARD
Page 2 round-fault Indication System Rev. 6 NOTE 1 1. USE TERMINAS FOR SYSTEMS UP TO 240 V. USE H TERMINAS FOR SYSTEMS ABOVE 240 V UP TO 600 V. ROUND-FAUT FIURE 2. Connection Diagram for an Ungrounded 240- to 600-V System. NOTE 2 PT S NOTE 1 1. 120/ 3 OR 240/ 3 V PT SECONDARY 2. CODES MAY REQUIRE INTEROCKED DISCONNECT SWITCH FIURE 3. Connection Diagram for Ungrounded Systems above 600 V. ROUND-FAUT Pub. -M. March 9, 2012 www.littelfuse.com 2012 ittelfuse POWR-ARD
Page 3 round-fault Indication System Rev. 6 NEUTRA ROUNDIN RESISTOR NOTE 1 ROUND-FAUT 1. USE TERMINAS FOR SYSTEMS UP TO 240 V. USE H TERMINAS OF SYSTEMS ABOVE 240 V AND UP TO 600 V. FIURE 4. Connection Diagram for a Resistance-rounded System up to 600 V. NOTE 3 NEUTRA ROUNDIN RESISTOR 1. 120/ 3 OR 240/ 3 V PT SECONDARY 2. CONTACT FACTORY FOR NR-MONITOR COMPATIBIITY. 3. CODES MAY REQUIRE INTEROCKED DISCONNECT SWITCH PT S NOTES 1&2 ROUND-FAUT FIURE 5. Connection Diagram for Resistance-rounded Systems above 600 V. Pub. -M. March 9, 2012 www.littelfuse.com 2012 ittelfuse POWR-ARD
Page 5 round-fault Indication System Rev. 6 4. TECHNICA SPECIFICATIONS Phase Voltage Input, maximums... 240 Vac to ground, 3.5 ma Input H, maximums... 600 Vac to ground, 4.5 ma amp Test... Isolated ac, 1 VA maximum ED Threshold... 30 Vac, minimum Dielectric Strength... 2,200 Vac, 1 minute Shipping Weight... 0.3 kg (0.8 lb.) Dimensions: Height... 108 mm (4.3 ) Weight... 88.9 mm (3.5 ) Depth... 54 mm (2.1 ) Environment: Operating Temperature.. -40 to 60 C Storage Temperature... -55 to 80 C Humidity... 85% Non-Condensing PWB Conformal Coating... MI-1-46058 qualified U QMJU2 recognized Certification... CSA, USA and Canada C R US R 53428 U isted Pub. -M. March 9, 2012 www.littelfuse.com 2012 ittelfuse POWR-ARD
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