Specifications

35
COMPACT
®
NS circuit breaker
Mounting
Front panel cutouts
On rails (plug-in base or chassis)
Plug-in mounting
See fixed-mounted installation page 32.
Drawout with extended front panel escutcheons
Y
X
K20
K21
G20
G21
∅T
U
E21533
P44
X
Z
Y
C17
C11
R8
R9
X
E21619
E21620
(*) P4 = 4.96/ 126 for COMPACT
®
NSF250N/H/L circuit breaker.
(a) U ≤ 0.78/
20 when using automatic auxiliary connectors (NSF150 and NSF250 circuit breakers).
COMPACT
®
NS circuit breaker: dimensions, connections and wiring diagrams
Plug-in and drawout mounting
inch
mm
C11 C17 G10 G11 G12 G13 G20 G21 H16 H17 H18 H19 K K1
NSF150/250N/H/L (inch) 4.05 1.67 3.74 7.48 3.42 6.85 1.47 2.95 4.03 8.07 4.07 8.26 0.68 1.37
(mm) 103 42.3 95 190 87 174 37.5 75 102.5 205 103.5 210 17.5 35
NSJ400/600N/H/L (inch) 6.10 1.65 5.90 11.8 5.39 10.7 2.95 5.90 6.20 12.40 5.51 11.02 0.88 1.77
(mm) 115 42 150 300 137 274 75 150 157.5 315 140 280 22.5 45
K5 K6 K11 K12 K13 K20 K21 L L1 L6 L7 L8 L9 L10
NSF150/250N/H/L (inch) 2.14 4.29 2.91 5.82 7.20 1.37 2.75 2.06 4.13 3.64 7.28 8.50 8.66 9.88
(mm) 54.5 109 74 148 183 35 70 52.5 105 92.5 185 216 220 251
NSJ400/600N/H/L (inch) 2.81 7.40 3.60 7.20 8.97 1.96 5.70 2.75 4.33 8.66 98.46 10.43 11.61
(mm) 71.5 143 91.5 183 228 50 100 70 140 110 220 250 265 295
P2 P4 P7 P8 P9 P12 P44 R8 R9 U(a) ØT
NSF150/250N/H/L (inch) 3.38 4.37(*) 1.06 1.77 2.95 1.25 4.84 2.91 5.82 ≤ 1.25 0.23
(mm) 86 111(*) 27 45 75 32 123 74 148 ≤ 32 6
NSJ400/600N/H/L (inch) 4.33 6.61 1.06 1.77 3.93 1.25 5.78 3.54 7.08 ≤ 1.25 0.11
(mm) 110 168 27 45 100 32 147 90 180 ≤ 32 3