80459-641-01E Model 6 Motor Control Centers
10/2012 Section 1—About the Model 6 Motor Control Center
© 1999–2012 Schneider Electric All Rights Reserved
11
ENGLISH
100 Millisecond, Arc-Rated MCC,
Upstream Over-Current Protection
Device (OCPD) Requirements
The OCPD external to and upstream of the MCC must meet the following
criteria:
1. The current rating of the upstream OCPD must be equal to or less than
the main device and main bus rating of the MCC.
2. The voltage rating of the upstream OCPD must be equal to or greater
than the voltage rating of the MCC. The maximum voltage is 600 V.
3. The interrupting rating of the upstream OCPD must be equal to or
greater than the available short circuit current. The maximum available
short circuit current is 65,000 A.
4. The instantaneous trip setting (if available) of the upstream OCPD must
NOT be turned off and must be set to trip at or below 35,000 A.
5. The short time delay trip setting (if available) of the upstream OCPD
MUST be set to the OFF position; no intentional delay is allowed.
6. Approved circuit breakers that can be used as the upstream OCPD:
— 15–150 A, PowerPact™ H-frame circuit breakers manufactured by
Schneider Electric
— 175–250 A, PowerPact J-frame circuit breakers manufactured by
Schneider Electric
— 300–600 A, PowerPact L-frame circuit breakers equipped with
Micrologic™ trip units, manufactured by Schneider Electric
— 700–1200 A, PowerPact PJ- or PL-frame circuit breakers equipped
with Micrologic trip units, manufactured by Schneider Electric
— 1200–2500 A, PowerPact R-frame circuit breakers equipped with
MicroLogic trip units, manufactured by Schneider Electric
— 800–1200 A, Masterpact™ NT circuit breakers equipped with
Micrologic trip units, manufactured by Schneider Electric
— 1600–2500 A, Masterpact NW circuit breakers equipped with
Micrologic trip units, manufactured by Schneider Electric
7. Approved fuses that can be used as the upstream OCPD:
— 15–600 A, UL Listed, Class RK1 from any manufacturer
— 15–600 A, UL Listed, Class RK5 from any manufacturer
— 15–600 A, UL Listed, Class J from any manufacturer
— 700–2500 A, UL Listed, Class L from any manufacturer
Schneider Electric Literature List The following Schneider Electric publications may be useful in the
maintenance and regular operation of your Model 6 MCC. Your local
Schneider Electric representative can provide them upon your request. Or,
you can download these documents from the Technical Library at
www.schneider-electric.us.
Table 1: MCC-Related Literature
Publication No. Title Publication No. Title
8998CT9701
Motor Control Centers (Model 6 Catalog, Class
8998)
30072-013-24 AC Magnetic Contactors and Starters, Size 2
80444-233-01
Altivar™ 61/71 Adjustable Speed Drive
Controllers in Motor Control Centers
30072-013-25 AC Magnetic Contactors and Starters, Size 3
80438-069-02
Altistart™ 48 Soft Start Units in Motor Control
Centers
30072-013-26 AC Magnetic Contactors and Starters, Size 4
80459-652-01
Altistart 22 Soft Starters in Motor Control
Centers
30072-013-47 AC Magnetic Contactors and Starters, Size 5
S1A10942 Quick Start Guide — ATV312 30072-013-60 AC Magnetic Contactors and Starters, Size 6
30072-013-29 Motor Logic™ Solid-State Overload Relay 3020IM9503 PowerLogic™ Power Meter
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