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Sneak Fuse Panels
October 2002
Sneak Fuse Panels
Sneak current protection is required between the incoming RJ21X or RJ2GX network interface
and the S8700 Multi-Connect configuration for both trunk and off-premise circuit packs.
The Model 507B sneak current fuse panel, or equivalent, is recommended for sneak current
protection. The panel contains two 25-pair connectors, fuse removal tool, and fifty 220029
sneak fuses (and two spares).
Connector cables (B25A male to female) connect the network interface to the sneak fuse panel.
Also, 157B connecting blocks equipped with SCP-110 protectors can be used for sneak current
protection.
NOTE:
Sneak current protectors with a rating of 350 mA at 600 volts must be Underwriter’s
Laboratory (UL) listed for domestic installation and Canadian Standards Association
(CSA) certified for Canadian installation.
• The 507B includes 52 sneak fuses and two cables and can be ordered using PEC code
63210.
• The SCP-110 protectors are used with 110-type hardware and on the 507B Sneak Fuse
Panel. The SCP-110 Protectors can be ordered separately and installed on the 157B
connecting block. Fifty protectors are required per block.
Sneak Fuse Panel Ordering Information
Description Comcode
157B Connecting Block 403613003
SCP-110 Protector 406948976
507B Sneak Current Fuse Panel 107435091
220029 Sneak Current Fuse 407216316
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