Demarcation Fuse/Circuit Breaker Alarm Panel 125DM08. Installation Guide

Transcription

1 Demarcation Fuse/Circuit Breaker Alarm Panel 125DM08 Installation Guide

2 Table of Contents 1.1 Overview Specifications Inspection Installation Important Installation Guidelines Installation Procedure Replacing Alarm Cards Accessories Compression Lugs List of Figures Figure 1 Model 125DM08 (UL Listed, File E139903)... 2 Figure 2 125DM08 - TFD... 2 Figure 3 Bracket Orientation... 6 Figure 4 Rack Mounting... 6 Figure 5 Ground Terminal Hardware... 7 Figure 6 Input & Output Lug Connections... 7 Figure 7 LEDs on Front Panel... 8 Figure 8 Removing Blank Covers... 8 Figure 9 Installing Circuit Breaker... 9 Figure 10 Installing TFD Fuse Holders... 9 Figure 11 Installing TPS/TLS Fuses Figure 12 Alarm Relay Terminals on Rear of Panel Figure 13 Alarm Card in Place Figure 14 Alarm Card Removed Figure 15 Typical 125DM08 Circuit

3 1.1 Overview The Telect Demarcation Fuse/Circuit Breaker Panel with alarms provide TPS/TLS fuse or circuit breaker protection at the equipment interface. The 2RU, white panel supports: 8 TFD fuse holders Bullet-style, standard-trip circuit breakers with rear access terminals Replaceable alarm card containing power and alarm LEDs, with rear-access, wire-wrap alarm relay contacts. Front Rear Each fuse holder or circuit breaker position has separate BATT/RTN inputs and outputs rated up to 125A for either ± 24 VDC or -48 VDC applications. Hardware is included for either flush or extended mounting in a 19-in. or 23-in. relay rack. Visit our website ( to order accessories and replaceable parts: fuses (up to 125A), TFD fuse holder, circuit breakers (up to 100A), ETSI brackets and more. NOTE: The 125DM08-TFD includes eight TFD holders installed. Figure 1 Model 125DM08 (UL Listed, File E139903) Figure 2 125DM08 - TFD 2

4 1.2 Specifications Inputs/Outputs: Max. rating single-pole, circuit breaker (each) Max. rating TFD holder, schematic C Max. continuous output load (each) Max. total load rating of panel Voltage range BATT & RTN wire size Ground wire size Terminal stud sizes (Input, output and earth ground) Power dissipation Short-circuit withstand rating Alarms: Alarm relay contacts Alarm card power rating Alarm wire size Weight: Weight, Shipping Dimensions: Nominal, without brackets Environment: Operating temperature Width: Height: Depth: Specification: 100A 125A (TLS fuse); 70A (TPS fuse) 80% of rated 800A continuous ±20 to ±28 VDC -40 to -60 VDC #8 to #1 AWG #10 to #2 AWG (depends on input fuse) 1 /4-20 dual studs on 5 /8" centers 1 /4-20 dual PEMs on 5 /8" centers (side ground) 17W per I/O 5000A Specification: 60 VDC 1W Solid: #26 to #22 AWG Specification: ~20 lb. (~9 kg) 125DM08 ~22 lb. (~10 kg) 125DM08-TFD in. (43.8 cm) 3.5 in. (8.9 cm) in. (27.6 cm) Specification: -5 C (23 F) to 50 C (131 F) 1.3 Inspection Please read these instructions carefully before installation. If you need assistance, call Telect Technical Support at or us at support@telect.com. Inspect equipment after unpacking and compare it to the packing list. Immediately report any shipping damage, defects or missing parts to Telect at Keep all documentation that comes with your shipment. 3

5 Telect is not liable for shipping damage. If the product is damaged, notify the carrier and call Telect at NOTE: For service or warranty information, please visit the telect.com website and click on the Support tab, inquiries to or call us at ALERT! Verify that all connections meet requirements specified in local electric codes or operating company guidelines before supplying power. Protect this equipment with a fuse or breaker sufficient to interrupt power levels specified on the preceding pages. Install this product within a restricted access location where access is through the use of a tool, lock and key, or other means of security and is controlled by the authority responsible for the location. Only qualified technicians may install and maintain this product. 1.4 Installation NOTES: Fuse holders, fuses and circuit breakers are sold separately. See 1.6 Accessories on page 13 for part numbers. Do not remove terminal protection brackets, until panel is installed in a rack. If the panel is transported outside of the shipping container, make sure the terminal protection brackets are installed Important Installation Guidelines Elevated Operating Ambient If you install this product in a closed or multi-unit rack assembly, the operating ambient temperature of the rack environment may be greater than room ambient. Therefore, consider installing the equipment in an environment compatible with the maximum ambient temperature (TMA) specified by the manufacturer. Reduced Air Flow When you install this equipment in a rack, make sure you do not compromise the amount of air flow required for safe operation of the equipment. Mechanical Loading When you mount the equipment in the rack, make sure to keep the mechanical load balanced to prevent a hazardous condition. Circuit Overloading Pay attention to the connection of the equipment to the supply circuit and the effects that overloading of the circuits might have on overcurrent protection and supply wiring. Appropriately consider equipment nameplate ratings when addressing this concern. Reliable Earthing Maintain reliable earthing of rack-mounted equipment. Pay attention to supply connections other than direct connections to the branch circuit (e.g., use of power strips). Disconnect Device Incorporate a readily available disconnect device into the building installation wiring. 4

6 1.4.2 Installation Procedure NOTE: Panel brackets are available for flush mounting in a 19-in. rack. A pair of 23-in. rack brackets are also included. Either pair of brackets can be moved or installed to extend front of panel beyond the face of the rack in 1-in. (2.54 cm) increments. WARNING! Failure to properly ground this equipment can create hazardous conditions to installation personnel and to the equipment. NOTE: Input and output wire size for this panel must be rated for the corresponding breaker/fuse size at the power distribution unit (PDU). The input wiring to this panel may be a greater size to accommodate a voltage drop from the primary power source. WARNING! Before connecting input power cables, make sure input power to panel is turned off. NOTE: Always follow operating company guidelines when connecting input wiring to the primary power source. CAUTION! Make sure the alarm connector on the fuse holder is straight before inserting into the panel. A bent alarm bayonet on a fuse holder can either cause internal damage to the panel or fail to make electrical contact with the alarm wiring within the panel. 5

7 1. If necessary, to move or replace the 19-in. brackets, remove the three screws on the sides of the breaker panel, as shown in Figure 3. Figure 3 Bracket Orientation 2. Install 19-in. or 23-in. brackets for flush or extended panel presentations on rack. 3. Locate an unused rack position and mount panel using the four thread-cutting screws provided, as shown in Figure Tighten the screws to 35 in.-lb. (4.29 N m) Figure 4 Rack Mounting 5. Use a UL/NRTL-approved crimping tool to attach a UL/NRTL-approved, 2-hole compression lug (fit 1 / 4-20 dual studs on 5 / 8 in. centers) onto a #10 to #2 AWG ground wire. (The size of the ground wire depends on size of input BATT wires.) 6. Attach the opposite end of the ground wire to the relay rack, per local practices. 6

8 NOTE: The 125DM08 is DC-I and can be grounded in both CBN and IBN networks. All eight ports have isolated returns and the chassis grounds are isolated from all returns. The 125DM08 is suitable for installation in network telecommunication facilities and in locations where the NEC applies. 7. If required, lightly coat antioxidant on lug, grounding terminal and contacting surface. 8. Remove the hardware over the terminals on the side of the panel. See Figure Connect the lug to the terminal using the nuts and washers removed in step 8, as shown in Figure 5. Figure 5 Ground Terminal Hardware 10. Tighten the nut to 20 in.-lb. (2.27 N m). 11. Make sure the input power is OFF. 12. For input wiring wiring used as inputs to this demarcation panel crimp straight, 2-hole compression lugs (fit 1 / 4-20 dual studs on 5 / 8 in. centers) onto #8 to #1 copper wires. Insulate lug barrels with UL94 V-0 rated heat shrink tubing. 13. Clean the terminals with a nonabrasive, nonmetallic pad. 14. If required, lightly coat antioxidant on lugs and input terminals and then connect lugs to input terminals on back of panel, as shown in Figure 6. Tighten lugs to 50 in.-lb. (5.5 N m). Figure 6 Input & Output Lug Connections 7

9 15. Before installing breakers or fuse holders and output wiring, turn power on to verify input power and indicators: Verify input voltage and polarity Whenever power is supplied, expect the corresponding PWR ON LED to light 16. For output wiring, repeat steps 7 through 12 for BATT and RTN outputs (crimp output wires to lugs, clean output terminals and attach lugs to output terminals). 17. Heat shrink the insulation onto the lug barrels. 18. Record the circuit assignments on the pull-out designation card below the alarm display. 19. Install plastic covers over the terminals. Figure 7 LEDs on Front Panel CAUTION! Telect recommends that the individual circuit load not exceed 80% of fuse capacity (for example, 100A fuse x.80 = 80A max. load). 20. Make sure output devices devices fed from the outputs of this demarcation panel are disabled. 21. As shown in Figure 8, remove the blank cover(s) from the position(s) you plan to use by unscrewing and removing the small Phillips screw at the bottom. Keep the hardware for later use. NOTE: For safety, leave blank covers over all unused positions. 22. With input power off, firmly install the circuit breakers or fuse holders in the panel. Make sure the alarm connectors on the rear of the breakers or holders are straight before installation. See Figures 9 through 11. Figure 8 Removing Blank Covers 8

10 Figure 9 Installing Circuit Breaker 23. See Figures 8 and 9 for installing circuit breakers. 24. See Figure 10 for installing TFD holders and fuses. Fuse holders are designed so that you can install them in only one way. Figure 10 Installing TFD Fuse Holders 9

11 Figure 11 Installing TPS/TLS Fuses ALERT! You can install fuse holders backwards. Observe the LINE and LOAD designations on the panel vs. the designations on the fuse holders. 25. Use the screws supplied with each fuse holder or circuit breaker to secure the bezels. Attach the bezel to the chassis with the blank cover screw previously removed. 10

12 26. Test the alarm card: a. Make sure to apply power to at least one feed, and make sure that, for each powered feed, you have installed a valid fuse or circuit breaker in the ON position. b. Make sure the Power LED(s) is green and the Alarm LED(s) is green on the front panel. Expect an open circuit between C and NO and a closed circuit between C and NC on the rear alarm pins. c. Remove a fuse(s) or turn a circuit breaker(s) to the OFF position. d. Verify the Power LED(s) is green and the Alarm LED(s) is red on the front panel. Expect a closed circuit between the C and NO and an open circuit between the C and NO on the rear alarm pins. 27. Wire-wrap alarm pins with solid #26 to #22 AWG. 28. Enable loads and verify the normal operating conditions outlined in the preceding notes. Figure 12 Alarm Relay Terminals on Rear of Panel 11

13 1.5 Replacing Alarm Cards The alarm card is held in place by two captive thumbscrews on the front of the alarm card panel. Captive Screw Captive Screw Figure 13 Alarm Card in Place To remove and replace an alarm card, unscrew the thumbscrews and pull out the card. Figure 14 Alarm Card Removed When replacing an alarm card, make sure the edge connector on the far end of the assembly docks securely into the connector inside the panel. 12

14 1.6 Accessories Item Description Part Number Alarm Card PWR ON / Alarm LED Circuit Breakers 25A A A A A A A A TFD Fuse Holder Kit A with Bullet-Style Connectors for TPS/TLS fuses with plastic faceplate A with Bullet-Style Connectors for TPS/TLS fuses with metal faceplate TPS Fuses 5A A A A A A A A A A TLS Fuses 80A A A A A

15 1.7 Compression Lugs ALERT! Only use components and crimping tools approved by agencies or certifying bodies recognized in your country or region such as Underwriter s Laboratories (UL), TUV, etc. Table 1 Lugs (Support Dual 1 / 4-20 Studs, 5 / 8" C-C) Telect T & B Burndy Panduit Lug Die Lug Die Lug Die Lug Die #10 AWG YAV10-2TC14 LCD10-14A-L #8 AWG P YA8CL-2TC14 49 LCD8-14A-L P21 #6 AWG YA6CL-2TC14 7 LCD6-14A-L P24 #4 AWG YA4CL-2TC14 8 LCD4-14A-L P29 #2 AWG YA2CL-2TC14 10 LCD2-14A-L P33 #1 AWG YA1CL2NT14 11 LCD2/0-14A-X4 P lugs included, supplier Panduit 2. 2 lugs included, supplier T&B 3. 2 lugs included, supplier Burndy 4. Lugs fit wire size 2/0 14

16 Figure 15 Typical 125DM08 Circuit 15

17 Rear View Top View Front View Telect assumes no liability from the application or use of these products. Neither does Telect convey any license under its patent rights or the patent rights of others. This document and the products described herein are subject to change with notice. 16