Figure 2. Series Nrx Catalog Numbering System - Eaton NRX Series User Manual

Instructional Book
Effective July 2011
The circuit breaker can be identified by a 20-digit catalog number located on the name plate (Figure 2). The drawout cassette can be identified by
a 14-digit catalog number (Figure 2a). An overview of the Catalog number code is provided for reference.
Basic Device Selection
(Postion 1-8)
1 2
Positions
R E
Example
Position 1 Breaker Frame Size
N Type NF 630 to 1600A
R Type RF 800 to 4000A
Position 2 Industry Standard
E IEC 60947-2
Position 3, 4 Switching Capacity
S4 42kA at 440Vac IEC
S5 65kA at 440Vac IEC
S6 65 / 66kA at 440Vac IEC
S8 85kA at 440Vac IEC
SC 105kA at 440Vac IEC
Position 5, 6 Rated Operational Current
07 630A Frame
08 800A Frame
10 1000A Frame
13 1250A Frame
16 1600A Frame
20 2000A Frame
25 2500A Frame
32 3200A Frame
40 4000A Frame
Position 7 Poles & Phasing
3 3-Pole
4 4-Pole
Position 8 Mounting Config.
W Drawout
B Fixed
Figure 2. Series NRX Catalog Numbering System (continued on next page)
6 EATON CORPORATION www.eaton.com
MN01301003E
Series NRX Breaker Catalog Numbering System
3 4 5 6 7 8
S 8 4 0 3 W
ABC
NABC
Overcurrent Protection Breaker Options
(Postion 9-11) (Postion 12-20)
9 10 11 12 13
5 2 G A B
Electronic Trip Unit Selection
No Protection - Switch Disconnector
Digitrip 520 - System Protection
LI protection only
Digitrip 520 - Selective Protection
LSI(G)
-ZSI Optional
Digitrip 520M - Universal Protection
LSI(G/A)
- Metering
- Communications Ready
- Ext. Power Ready 24Vdc
- ZSI Optional
- ARMS Optional
Digitrip 1150i - Power Measurement
520M Proection + LCD Color Display
Advanced metering & protective features LSIGA
Position 11
0
1
2
3
4
8
A
C
D
M
N
Q
R
Series NRX Low Voltage Power (Air)
Circuit Breakers User Manual
14 15 16 17 18 19
A N 4 X N D
Protection ZSI
None
LI
LSI
LSI
LSIG
LSIG
LSI
LSI
LSIA
LSIA
LSIG
LSIG
LSI
LSI
LSIA
LSIA
LSIG
LSIG
LSI
LSI
LSIGA
LSI
LSI
LSIGA
LSIGA
Rating Plug (Amperes)
Non-Auto Switch
200
250
300
400
800
1000
1250
1600
2000
2500
3200
4000
20
X
ARMS Position
9-10
SW
22
-- 52
ZSI 53
-- 5G
ZSI 5H
-- -- M2
ZSI -- M3
-- -- MA
ZSI -- MB
-- -- MG
ZSI -- MH
-- ARMS R2
ZSI ARMS R3
-- ARMS RA
ZSI ARMS RB
-- ARMS RG
ZSI ARMS RH
-- -- 12
ZSI -- 13
-- -- 14
ZSI -- 15
-- ARMS 16
ZSI ARMS 17
-- ARMS 18
ZSI ARMS 19