Low-Current 20/20 GMT Series Fuse Panels Models & Installation Guide

Transcription

1 Low-Current 20/20 GMT Series Fuse Panels Models & Installation Guide

2 Low-Current 20/20 GMT Series Fuse Panels Models & Installation Guide, Part Number Copyright 2010, Telect, Inc., ll Rights Reserved Telect and Connecting the Future are registered trademarks of Telect, Inc N Madson St., Liberty Lake, Washington Telect assumes no liability from the application or use of these products. Neither does Telect convey any license under its patent rights nor the patent rights of others. This document and the products described herein are subject to change without notice. bout Telect Telect offers complete solutions for physical layer connectivity, power, equipment housing and other network infrastructure equipment. From outside plant and central office to inside the home, Telect draws on more than 25 years of experience to deliver leading edge product and service solutions. Telect is committed to providing superior customer service and is capable of meeting the dynamic demands of customer and industry requirements. This commitment to customer and industry excellence has positioned Telect as a leading connectivity and power solution provider for the global communications industry. Technical Support getinfo@telect.com Phone: or Telect, Inc. US Mexico Telect, Inc., ll Rights Reserved, Page ii

3 Low-Current 20/20 GMT Series Fuse Panels Models & Installation Guide Table of Contents 1.1 Overview Specifications Inspection Installation larm Wiring Standard larms uxiliary larms GMT Fuses Schematics List of Figures Figure 1 - Model Figure 2 - Front View... 1 Figure 3 - Model (Rear View)... 2 Figure 4 - Model (Rear View)... 2 Figure 5 - Panel With Mounting rackets in Stowed Position for Shipping... 5 Figure 6 - racket Installation (Examples)... 6 Figure 7 - Mounting the Panel... 6 Figure 8 - Connecting the Lug to the Rear Panel... 7 Figure 9 - Inserting Conductors... 7 Figure 10 - Fail Relay larm Pins... 8 Figure 11 - Designation Card... 9 Figure 12 - Inserting the Designation Card Figure 13 - Standard larm Wiring Figure 14 - uxiliary larm Wiring...11 Figure 15 - lock Diagram Figure 16 - Rear, Top, and Front Views Telect, Inc. US Mexico Telect, Inc., ll Rights Reserved, Page iii

4 Low-Current 20/20 GMT Series Fuse Panels Models & Installation Guide 1.1 Overview Telect s 1RU Traditional Low-Current GMT Series Fuse Panels provide protected secondary -24 Vdc to -48 Vdc Front power distribution to telecommunications equipment at the bay level. Fuse panels are available for GMT outputs up Rear to 10 per position in dual-circuit panel configurations having 20 GMT fuse positions per circuit. Model is the standard panel containing separate Side and Side GMT fuse failure alarms and corresponding LEDs. Standard features for Model include Dual-circuit, separately fused input buses for Sides and Minimal rack space: one, 1.75-in. EI or 2-in. WECO rack unit (1RU) for rear access connections 20 GMT outputs per side with each side protected by a Type C 20 ceramic input fuse Dummy GMT fuses provided for all fuse holders Figure 1 - Model Two sets of Form C relay contacts per side for reliable fail alarm connections Side and alarms can be wired for separate or common alarming. (ll basic and auxiliary alarms can be wired for separate or common alarming.) 19-in. or 23- in. rack mounting, with mounting brackets provided Model adds separate power failure auxiliary alarms for Sides and along with a load-sharing fail-safe circuit. (ll basic and auxiliary alarms can be wired for separate or common alarming.) If power fails on one bus, the other picks up the loads on the failed bus. oth Models are UL Recognized for US and Canada, E199668, and NES3 Compliant. 20 Input Fuses for Circuits & Designation Card Holder "FIL SFE" pplies only to Model POWER POWER FIL SFE LRM Circuit Output GMT Fuse Holders Circuit Output GMT Fuse Holders Figure 2 - Front View Fuse larm LEDs for Circuits & Telect, Inc. US Mexico Telect, Inc., ll Rights Reserved, Page 1

5 GMT output fuses are available in capacities ranging from 0.18 to 10. GMT splash covers are optional for maximum safety when fuses blow. (Visit our website at or see Section 1.6 GMT Fuses on page 12 for ordering GMT fuses.) The panel is delivered with dummy fuses in all positions. The standard front panel includes a tri-color fuse alarm LED for each circuit (LRM and LRM ): The LRM LEDs are green when all installed input and output fuses are operational. The LRM LED is red when any output fuse blows. The LRM LED is orange when either of the input fuses blows. The back contains input and output terminal connections (NEG connections at top; POS RTN connections below), chassis ground connections, and wire-wrap pins for external alarm hookups. Plastic Caps* CUTION: DO NOT REVERSE POLRITY larm Pins for Circuits & Screw-Tight, W ire-clamping Output Terminals -24V TO -48V FIL RELY RTN Screw-Tight, W ire-clamping Input Terminals * Plastic caps cover screw-tight terminals used by the manufacturer for installing interior wiring. DO NOT REMOVE CPS or LOOSEN CLMPING SCREWS. Figure 3 - Model (Rear View) Plastic Caps* CUTION: DO NOT REVERSE POLRITY larm Pins for Circuits & Screw-Tight, W ire-clamping Output Terminals F UX RLY F UX RLY F -24/48V IN F +GND IN -24V TO -48V FIL RELY RTN Screw-Tight, W ire-clamping Input Terminals * Plastic caps cover screw-tight terminals used by the manufacturer for installing interior wiring. DO NOT REMOVE CPS or LOOSEN CLMPING SCREWS. Figure 4 - Model (Rear View) Model includes a fail-safe circuit. Schottky diodes are cross-connected at the input to the power distribution circuits. When both power supplies are energized, power is balanced between the two supplies by the diodes. If one of the power supplies loses its power or is shut down, the other supply shares its power with both outputs ( and ) through the Schottky diodes. The positive battery return circuits for and are common since both circuits must operate from either the or power source. The fail-safe feature limits the and inputs to 15 maximum for each bus (total 30 per panel). NOTE: For the Fail Safe load sharing to function properly, the capacity of each of the usersupplied external feeder fuses or breakers must be greater than the total load of the panels and Telect, Inc. US Mexico Telect, Inc., ll Rights Reserved, Page 2

6 outputs combined. For example, if the panel s total Load = 10 and Load = 10, then the feeder fuse for Side and Side must each be at least Specifications Physical: Specifications: Dimensions (nominal without bracket)* Width: Height: Depth: 17 in. (432 mm) 1.75 in. (44.4 mm) 9.25 in. (235.0 mm) Weight 8.5 lb (~3.8 kg) Ground terminals Screws: #10-32 Phillips** panhead Torque: 20 in.-lb (~2.26 N m), max. Wire: Same size as input terminals Ring Lug urndy T1010, 12 WG, no insulation; MP 35771, WG, no insulation Material Cold-rolled steel, powder-coat telcom grey * See 1.7 Schematics on page 12. for complete dimensions. ** Screws with cross-recessed heads Custom color/finish available. Mechanical: Specifications: Input terminals Type: Screw-tight, wire-clamping Wire: 14 to 6 WG, copper wire Torque: 16 in.-lb (1.80 N m), max. Output terminals Type: Screw-tight, wire-clamping Wire: 22 to 14, copper wire Torque: 4.5 in.-lb (0.51 N m), max. larm terminals Wire Wrap.045 in. square wire-wrap pins on.200 in. centers. Use 18 to 22 WG copper Environment: Temperature range, ambient Humidity Specifications: -17 C to 49 C (0 F to 120 F) 0% to 90% and noncondensing Telect, Inc. US Mexico Telect, Inc., ll Rights Reserved, Page 3

7 Electrical Interface: Operating voltages, nominal Current capacity Fuse capacity Maximum output interruption device rating Maximum continuous output load rating larm contact relay Panel heat dissipation per 20 bus Percentage of full load heat dissipation at nominal voltage Specifications: -24 Vdc to -48 Vdc 20 per bus (40 total for both buses), max. with 20 ceramic input fuse (Type C) 15 per bus (30 total for both buses), max, with 20 ceramic input fuse (Type C) 20 (ea side) 10 GMT fuse 7 for a 10 fuse 30 Vdc 3.9W (13.3 0% load less than 1% of total load wattage Reliability: MTF 200,000 hr 1.3 Inspection Please read these instructions carefully before beginning installation. If you need assistance, call Technical Support at (domestic calls), or (Option 2), or us at getinfo@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. Telect is not liable for shipping damage. If the product is damaged, notify the carrier and call Telect s Customer Service Department at (domestic only) or for further recourse. NOTE: For service or warranty information, please visit the telect.com website, or inquiries to getinfo@telect.com and click on the Support tab, or phone us at (domestic only) or Telect, Inc. US Mexico Telect, Inc., ll Rights Reserved, Page 4

8 1.4 Installation LERT LERT 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 personnel may install and maintain this product. LERT LERT Verify 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 under Electrical Specifications. LERT LERT Each panel is tested at the factory. Telect recommends that you perform the testing outlined in the following procedure to ensure that no damage has occurred during shipping and handling. oth Sides and input circuits, as applicable, need to be tested. rackets are provided for either flush or extended (increments of 0.5 in. [12.7 mm]) mounting in a 19-in. or 23-in. rack with either EI or WECO spacing. For shipping, both pairs of brackets are affixed to the sides of the panel. 1. Remove the brackets, shown in the following illustration, from the sides of the panel. Left racket for 19-in. Rack Remove Screws (4) on Each Side of Panel to Remove rackets from Stowed Position Right racket for 23-in. Rack Right racket for 19-in. Rack Left racket for 23-in. Rack Figure 5 - Panel With Mounting rackets in Stowed Position for Shipping Telect, Inc. US Mexico Telect, Inc., ll Rights Reserved, Page 5

9 2. Select the proper pair of brackets and discard the other two. 3. Mount the brackets to sides of the panel, as shown in the following examples. Tighten screws to about 29 in.-lb (~3.3 N m). The panel can be mounted so that the panel s face is flush or extended in 0.5-in. (12.7 mm) increments from the rack. (The clover-leaf pattern on the face of the bracket points downward on the right side of the panel and upward on the left.) racket for a 19-in. Rack (Extended 2 in.) racket for a 23-in. Rack (Flush Mount) racket for a 19-in. Rack (Flush Mount) Clover-Leaf Pattern Points Downward on Right Side of Panel. Figure 6 - racket Installation (Examples) 4. Locate an unused rack position and mount the panel using the four, thread-cutting screws and lockwashers provided, as shown on the right. 5. Tighten the screws to 35 in.-lb (4.29 N m). 6. efore connecting any conductor, use a multimeter to measure the resistance between the input terminal of each side (+ and - for Side ; + and - for Side ) at the rear corner of the panel. Expect 500Ω or more for both Side and Side. Figure 7 - Mounting the Panel WRNING WRNING Failure to properly ground this equipment can create hazardous conditions to installation personnel and to the equipment. LERT LERT 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. 7. For ground wiring, use a listed (approved) crimping tool to attach a listed (approved), singlehole compression lug suitable for a #10 (~5 mm) screw onto a suitable ground wire. Telect, Inc. US Mexico Telect, Inc., ll Rights Reserved, Page 6

10 Ground wire should be same gauge as the input wiring. Input wire size depends solely on input interruption device at the primary power distribution unit. 8. If necessary, use a coarse, non-metallic cleaning pad to clean the lug and stud. 9. Telect recommends that you lightly coat anti-oxidant on the lug, grounding screw, and surrounding contacting surface. 10. Connect the lug to the rear panel using the ground screw provided. See Figure 1. FIL RELY Figure 8 - Connecting the Lug to the Rear Panel 11. Tighten the screws to 20 in.-lb (~2.26 N m). WRNING WRNING efore connecting input power cables, make sure input power to panel is turned off. 12. For input wiring wiring used as inputs to this distribution panel strip approximately 3 /8 in. (~10 mm) of insulation from the end of suitable input conductors. Input conductor (14 to 6 WG) must match or exceed the rating of the fuse or breaker at the PDU. (Stranded wires should be tinned.) 13. Lightly coat anti-oxidant on the bare conductors. 14. Insert the conductors at the bottom of the screw-tight terminals, as shown on the right. 15. Tighten screws to 16 in.-lb (1.80 N m). Figure 9 - Inserting Conductors LERT LERT -24 Vdc to -48 Vdc always goes to - and -. RTN always goes to + and +. RTN always goes to the other terminal. For Model with fail-safe circuitry, make sure that RTN is common to both Side and. 16. Make sure power is off (open breaker, dummy fuse, or vacant fuse holder at the power distribution unit [PDU]) before connecting this panel s cables to the PDU. 17. Make sure that only dummy GMT fuses are installed in this panel or that the GMT fuse holders are vacant. 18. Enable the fuse or breaker at the PDU (25 max. for Model ; 35 max. for Model which contains a fail-safe circuit) to turn on Feed to Side of the panel. Telect, Inc. US Mexico Telect, Inc., ll Rights Reserved, Page 7

11 19. Check voltage and polarity at the input connectors of the panel. lso, check that The LED on front of the panel turns on (green). The LED must remain red. If the LED doesn t turn green, recheck polarity at input connectors. (Reversing input connections will not harm the panel.) However, if the input power leads were reversed, the fuse fail relay will fail to energize, causing the normally open contacts to remain closed and normally closed contacts to remain open. If necessary, check across the FIL RELY alarm pins located on the rear of the panel and shown in Figure On the rear of the panel, with LED lit (normal operation), but with LED off (failure operation), test the Side- FIL RELY pins. Expect continuity (0Ω) between Terminals C and NC. Expect an open circuit ( Ω) between Terminals C and NO. 21. Conversely, when testing the Side- pins, Expect an open circuit ( Ω) between Terminals C and NC. Expect continuity (0Ω) between Terminals C and NO. 22. Repeat Steps 18 to 21 for Feed and observe that the LED turns green. cross all FIL RELY alarm pins Expect continuity (0Ω) between Terminals C and NC. Expect an open circuit ( Ω) between Terminals C and NO. 23. For output wiring, strip off ¼ in. (~7 mm) of insulation. Like the input terminals, the output terminals are screw-tight, wire-clamping. The output terminals will accommodate 14-WG to 6-WG conductors. Like the output terminals, stranded wires for outputs should be tinned. Remember: output conductors must be rated at or above the amperage rating of the GMT fuse. For example, use no smaller than #16-WG output wiring for 10 output fuses. Do not exceed 8 continuous load for a 10 fuse. LERT LERT GMT fuses have a small inherent electrical resistance resulting in a small inherent power loss. For this reason, the GMT fuse manufacturer recommends that the load for GMT fuses up to and including 7.5 not exceed 80% of the fuse rating and that the load for 10 GMT fuses not exceed 70% of the fuse rating. (For example, 10 fuse x.70 = 7 max. load). Total load for all GMT outputs on each side must not exceed 20 for a panel without a fail-safe circuit, or 15 for a panel with a fail-safe circuit. FIL RELY Figure 10 - Fail Relay larm Pins Telect, Inc. US Mexico Telect, Inc., ll Rights Reserved, Page 8

12 24. Telect recommends that you lightly coat anti-oxidant on bare wires before connecting to output terminals. (NEC specifies only one conductor and load for each output terminal.) 25. Tighten the screws to 4.5 in.-lb (0.51 N m). 26. Connect the other end of output wires to load. 27. Record the circuits on the designation card provided, as specified by the operating company procedures.(the front side of the card is shown in Figure 10.) The designation card has entries for Outputs 1-10 on the front and on the rear. Use the left half of each side for Side outputs and the right half for Side outputs. 28. Make sure the inputs at the loads are disabled by removing all power cards or all input fuses at the load equipment. (lways follow recommended operating company guidelines when disabling load equipment.) INPUT FUSE FUSE MP CIRCUIT INPUT FUSE FUSE MP CIRCUIT INPUT FUSE FUSE MP CIRCUIT INPUT FUSE FUSE MP CIRCUIT Figure 11 - Designation Card WRNING WRNING Use only UL-listed or UL-recognized component secondary protection devices. 29. Insert the proper sizes of GMT fuses in designated fuse holders using the designation card to identify circuits. Check voltage and polarity at input of loads. 30. fter all designated GMT fuses have been installed, check that the and LEDs are still green. If an output fuse blows, the corresponding or LED will turn red; if an input fuse blows, the corresponding or LED will be orange or amber. gain, test FIL RELY alarm pins on rear of the panel. s before Expect continuity (0Ω) between Terminals C and NC. Expect an open circuit ( Ω) between Terminals C and NO. 31. If available, replace one of the output fuses with a blown fuse and check that the or LED changes to red. Check the FIL LRM pins again: Expect an open circuit ( Ω) between Terminals C and NC. Expect continuity (0Ω) between Terminals C and NO. 32. When finished, re-install the operable fuse. 33. Do the same with one of the input fuses. Notice that the or LED changes to amber. The FIL RELY alarm pins will indicate a failure condition. Telect, Inc. US Mexico Telect, Inc., ll Rights Reserved, Page 9

13 34. If desired, wire-wrap the remote external audio/visual alarm indicator wires (solid copper wires, #22 to #18 WG) to the alarm terminals. See larm Wiring, following this section One by one, re-enable the load equipment and verify proper operation. 36. Fold the designation card on the score line and slip into the holder on the front of the panel, as shown in Figure larm Wiring Model has a standard alarm relay (FIL RELY) for each feed one for Side and one for Side. Model contains the standard alarm relay plus an auxiliary relay (UX RELY) that can be triggered externally. ll relays have two sets of Form C dry contacts for wiring to audible and visual alarm indicators. udible and/or visual failure indicators can be wired to the alarm pins in several ways Standard larms Designation Card Holder Figure 12 - Inserting the Designation Card When an input or output fuse blows the relay is de-energized and the normally open contacts close and the normally closed contacts open to indicate the failure. larm Device larm Device FIL RELY larm Device larm Device larm Device larm Device FIL RELY NEG (or -GND) +GND (or POS) NEG (or -GND) NEG (or -GND) +GND (or POS) a. Separate larms for Side & Side b. Combined larms for Side & Side Figure 13 - Standard larm Wiring uxiliary larms uxiliary alarms are triggered from either an external CO or site source or by the standard alarm relay. Like the standard relay, when triggered, the auxiliary relay is de-energized, causing the normally open contacts to close and the normally closed contacts to open. Telect, Inc. US Mexico Telect, Inc., ll Rights Reserved, Page 10

14 larm Device larm Device larm Device larm Device +GND (or POS) NEG (or -GND) NEG (or -GND) +GND (or POS) uxiliary Relay Contacts uxiliary Relay Trigger F UX RLY F UX RLY F -24/48V IN* F +GND IN** FIL RELY Internal Wiring F -24/48V IN* F +GND IN** Nomenclature is for contacts * NEG (or -GND) trigger. ** POS (or +GND) trigger. a. Separate larms for Side & Side larm Device larm Device +GND (or POS) NEG (or -GND) uxiliary Relay Contacts uxiliary Relay Trigger F UX RLY F UX RLY F -24/48V IN* F +GND IN** FIL RELY Internal Wiring b. Combined larms for Side & Side F -24/48V IN* F +GND IN** Nomenclature is for contacts * NEG (or -GND) trigger. ** POS (or +GND) trigger. larm Device larm Device larm Device larm Device +GND (or POS) NEG (or -GND) NEG (or -GND) +GND (or POS) uxiliary Relay Contacts uxiliary Relay Trigger F UX RLY F UX RLY F -24/48V IN F +GND IN FIL RELY F -24/48V IN* F +GND IN** Nomenclature is for contacts +GND (or POS) c. Using the Standard larm to Trigger uxiliary larms When a Fuse lows Figure 14 - uxiliary larm Wiring Telect, Inc. US Mexico Telect, Inc., ll Rights Reserved, Page 11

15 1.6 GMT Fuses GMT Fuse Part Numbers GMT Fuse GMT Fuse Part Numbers GMT Fuse.18 Yellow (YEL) White/Orange (WHT/ORN) ¼ Violet (VIO) lue (LU) ½ Red (RED) White/lue (WHT/LU) ¾ rown (RN) White/rown (WHT/RN) Gray (GRY) Green (GRN) /3 White (WHT) ½ lack/white (LK/WHT) ½ White/Yellow (WHT/YEL) Red/White (RED/WHT) Orange (ORN) Order E RC for each ¼ X 1¼, V input fuse. For dummy fuses order For GMT safety (splash/splatter) covers order Schematics POWER OUTPUT FIL SFE LOD SHRING POWER OUTPUT T T R T N GROUND OUTPUT GROUND OUTPUT Figure 15 - lock Diagram T T R T N Telect, Inc. US Mexico Telect, Inc., ll Rights Reserved, Page 12

16 -24V TO -48V FIL RELY RTN Model F UX RLY F UX RLY F -24/48V IN F +GND IN -24V TO -48V FIL RELY RTN #10-32 Panhead Screw R0.21 [R5.4] Model Min. length of lug tongue is 0.43 in. (10.8 mm) RER VIEWS (ROTTED) 0.77 [19.7] 8.17 [207.5] Face of panel can be extended beyond rack flange by as much as 2.50 in. (63.5 mm) in 0.5 in. (12.7 mm) [63.5] 0.19 [4.9] TOP VIEW "FIL SFE" pplies only to Model [44.5] 1.25 [31.7] POWER POWER FIL SFE LRM 1.00 [25.4] [432.2] [465.1] 0.39 [9.9] [482.6] [566.7] [584.6] FRONT VIEW Figure 16 - Rear, Top, and Front Views Telect assumes no liability for 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 without notice. Telect, Inc. US Mexico Telect, Inc., ll Rights Reserved, Page 13

17 U.S. Conformity ssessment ody Certificate of Conformity No Upon assessment of Technical Construction File TCF it has been determined that the Hendry Telephone Products Power Distribution and Fan Panels conform to the protection requirements set out in article 4 of EMC Directive 89/336/EEC as per EN :94 with 1 :95 & 2 :97 (class ), EN :95, EN :95, EN V1.2.1 :00-03, and ETS ; and in accordance with the greement on Mutual Recognition between the United States of merica and the European Community, Sectoral nnex for EMC, this U.S. Conformity ssessment ody hereby certifies attestations of compliance to the EMC requirements so demonstrated. National Technical Systems 1536 E. Valencia Drive; Fullerton, C, US ; Tel (714) ; Fax (714) Telect, Inc. US Mexico Telect, Inc., ll Rights Reserved, Page 14