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Amphenol Network Solutions 

All rights reserved. 12.16.19 138661-5 A0 

509.926.6000 – amphenol-ns.com 

Dual-Feed 350A 6-Circuit 

Breaker/TFD Distribution 

Panel with 5 GMTs

 

1.1 Overview 

The Amphenol Network Solutions dual-feed 350A circuit 

breaker/TFD panel provides high-capacity protection for 

secondary power distribution, co-locations and data for 

communications equipment. In addition, the provided GMT 

fuses enhance power distribution for applications that require 

15A or less. Each of the dual feeds contains six interrupter 

positions for either bullet-style REC switch (ON/OFF) circuit 

breakers or TFD holders. Each feed also includes five GMT 

fuses. Go to amphenol-ns.com to order circuit breakers, TFD 

holders and GMT fuses:  
 
 

  TLS fuses up to 70A rated, continuous current 80% of rated 

  TPS fuses up to 125A rated, continuous current 80% of rated 

  GMT fuses up to 15A rated, continuous current 70% of rated 

  Circuit breakers up to 100A rated, continuous current 80% of rated 

 
This panel ships with solid covers over the circuit breaker/TFD positions and with fuse-slot fillers in the GMT holders. 
Sides A and B are electrically isolated except for the replaceable alarm card, which contains power and alarm LEDs. The 

panel features separate power status LEDs and a single-alarm LED for breaker trips or fuse failures. Power and alarm 

relay connections are controlled on-board and provide dry Form-C contacts.  

 
All input, output and alarm terminals are on the rear, and all are covered by a single, full-size transparent terminal cover. 

Separate input terminal sub-covers maintain protection for the other terminals when you are only working with the load 

and/or alarm terminals. Two pairs of ground studs on the rear panel provide flexibility in grounding from either side of the 

rack. The input, output and ground studs support the following cable gauges:  

 

  Input terminals support up to a 750-MCM cable 

  Output terminals support up to a 2-AWG cable 

  Ground studs support up to a 1-AWG cable 

 
 
 
 
 
 
 
 

Fig. 1: 350CB06 Distribution Panel 

Summary of Contents for Telect 350CB06

Page 1: ...Dual Feed 350A 6 Circuit Breaker TFD Distribution Panel with 5 GMTs Installation Guide...

Page 2: ...rer that serves the data and communications markets We design manufacture and distribute products for customers who need an end to end solution for network connectivity fiber power distribution and ra...

Page 3: ...ion 5 1 5 Installation 5 1 6 Parts Accessories 13 1 7 Schematic Drawing 15 1 8 Drawings 16 List of Figures Figure 1 350CB06 Distribution Panel 1 Figure 2 Bracket Orientation 5 Figure 3 Rack Mounting 6...

Page 4: ...cuit breakers up to 100A rated continuous current 80 of rated This panel ships with solid covers over the circuit breaker TFD positions and with fuse slot fillers in the GMT holders Sides A and B are...

Page 5: ...ow required for safe operation of the equipment is not compromised Mechanical Loading Mounting of the equipment in the rack should be such that a hazardous condition is not achieved due to uneven mech...

Page 6: ...n or 15 mm wrench to 140 in lb 15 5 N m Input wire size 1 AWG to 750 MCM Breaker Fuse Outputs Specifications Max output single pole long delay circuit breaker ea 100A Max output TFD holder schematic C...

Page 7: ...thority responsible for the location Only qualified technicians may install and maintain this product Grounding Specifications Earth GND terminal studs for dual hole compression lugs 1 4 20 studs on 5...

Page 8: ...lly unpack it and compare it to the packaging list Please report any defective or missing parts to Amphenol Network Solutions Quality at quality amphenol ns com or call 1 509 926 6000 Amphenol Network...

Page 9: ...t the panel as high as possible on the rack 3 Tighten the screws to 35 in lb 4 29 N m If you intend on installing more than one panel per rack you need to plan a rack arrangement that dissipates heat...

Page 10: ...nnect using 1 4 20 hex nuts and flat washers provided as shown in Figure 4 9 Tighten the bolt to 25 in lb 2 83 N m max WARNING Before connecting input power cables make sure input power to panel is tu...

Page 11: ...Enable the fuse or breaker at the primary distribution unit or battery 440A max to turn on Feed A to Side A of the panel and then check the voltage and polarity at input connectors of panel Also chec...

Page 12: ...t wire at a time 24 Insulate lug barrels with UL 94V 0 rated heat shrink tubing 25 Clean panel terminals and lugs with a nonabrasive nonmetallic pad 26 If required lightly coat antioxidant on the lugs...

Page 13: ...r end of the output wire to load ALERT GMT fuses have a small inherent electrical resistance resulting in a small inherent power loss For this reason GMT fuse manufacturer recommends that the load for...

Page 14: ...itions between breakers Install the GMT fuses so that the failure indicator flags are at the top 36 Do one of the following Switch breakers to ON Install fuses Then test power and polarity at input of...

Page 15: ...er s designation card shown below is a 10 in 254 mm by 2 1 4 in 57 mm card that folds in half to fit a card holder located to the right of the status LEDs 39 Re install the terminal cover 40 Lastly en...

Page 16: ...0 amp long delay 090 0052 0020 30 amp long delay 090 0052 0030 40 amp long delay 090 0052 0040 50 amp long delay 090 0052 0050 60 amp long delay 090 0052 0060 70 amp long delay 090 0052 0070 80 amp lo...

Page 17: ...8 40A 130482 50A 130484 60A 130486 70A 130488 Table 3 GMT Fuses Item Description Part Number of Fuse Part Number of Colored Designation Pin GMT Fuses 18A Yellow YEL 130781 102435 21 25A Violet VIO 100...

Page 18: ...al Feed 350A 6 Circuit Breaker TFD Distribution Panel with 5 GMTs 1 7 Schematic Drawing BATT BATT BATT BATT RTN RTN RTN RTN A Input B Input C GND C GND Note Relays shown in alarm condition POWER ALARM...

Page 19: ...olutions All rights reserved 12 16 19 138661 5 A0 509 926 6000 amphenol ns com Dual Feed 350A 6 Circuit Breaker TFD Distribution Panel with 5 GMTs 1 8 Drawings Front View 19 000 17 250 4 970 Top View...

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