Emerson NetSure DCS 48375 Betriebsanweisung PDF herunterladen (Seite 17)

System Application Guide SAG584622100, SAG584622200

Spec. Nos. 584622100, 584622200, SAG584622300, SAG584622400

584622300, 584622400 (Model DCS48375) Issue AC, July 3, 2012

Page 17 of 34

This document is property of Emerson Network Power, Energy Systems, North America, Inc. and contains confidential and proprietary information owned by Emerson Network Power, Energy

Systems, North America, Inc. Any copying, use, or disclosure of it without the written permission of Emerson Network Power, Energy Systems, North America, Inc. is strictly prohibited.

Recommended Load Distribution Wire Sizes and Lugs Selection

Features

1/4-20 x 0.625” studs on 5/8” centers are provided for installation of customer provided load distribution

leads terminated in 2-hole lugs.

Restrictions

Maximum lug width, 0.625 inches.

Maximum size of wire to be connected to a single fuseholder or circuit breaker position is 2 AWG.

Ordering Notes

1) Load distribution lugs must be ordered separately. Customer must provide (or order) lug mounting

hardware. The rating of the distribution device determines the load lead wire size requirement. For

recommended wire sizes and lug selection for various loop lengths per fuse/circuit breaker ampere rating,

refer to Table 11. For additional lug information, refer to drawings 031110100 through 031110300.

Maximum size of wire to be connected to a single fuseholder or circuit breaker position is 2 AWG.

For wiring up to 350 kcmil, see “Special Application Crimp Lugs” under ORDERING INFORMATION.

Distribution devices requiring a single distribution position require a two hole lug with 1/4” bolt

clearance holes on 5/8” centers (order per Table 11, order hardware kits per Table 7).

Distribution devices requiring two (2) or three (3) distribution positions require special application lugs

(order per Table 11 and Table 6) or busbar adapter kits (order per Table 7) and two hole lugs with

3/8” bolt clearance holes on 1” centers (order per Table 8).

Notes to Table 11:

Wire sizes are based on recommendations of the American National Standards Institute (ANSI)

approved National Fire Protection Association's (NFPA) National Electrical Code (NEC). Table 310-16

for wire rated at 90 C conductor temperature operating in ambient temperatures of 40 C, 50°C, and

65°C was used. For other operating ambient temperatures, refer to the NEC. For operation in

countries where the NEC is not recognized, follow applicable codes.

Recommended wire sizes are sufficient to restrict voltage drop to 1.0 volt or less at listed branch current

for the loop lengths shown. Loop length is the sum of the lengths of the positive and negative leads.

Wire Size / Loop Length Combination Calculated using 40°C Ambient Operating Temperature.

Wire Size / Loop Length Combination Calculated using 50°C Ambient Operating Temperature.

Wire Size / Loop Length Combination Calculated using 65°C Ambient Operating Temperature.

These lugs are two-hole for 1/4" bolt clearance on 5/8" centers. Refer to drawing 031110100 for lug

crimping information.

Special application crimp lug / strap combination.

Table 11 (cont'd on next page)

Recommended Load Distribution Wire Sizes and Lugs

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