Specification
2008-2009 Electrical Distribution Products
Discount Schedule GDSM
5-5
5 SAFETY SWITCHES
Siemens / Murray Original Folio # 5-5 Murray 2005
Safety Switches
General Duty — 30–600 Amp, 10,000 & 100,000 Amp Withstand Cartridge Fuse
Type 1 & Type 3R
GUN322 GHN321N GHN423NW
Switch Selection with Class “H“ Fuse Holders 30–600 Amps
(Convertible to Class “R“)
Horsepower Rating
Indoor TYPE 1 Outdoor TYPE 3R
Single Phase Three Phase
240V AC 240V AC 250V DC
Std. Approx. Std. Approx.
Symbol Amps Cat # List Each Pkg. Wgt. Lbs. Cat # List Each Pkg. Wgt. Lbs. Hub Std Max
Std Max
Std
FUSIBLE 2 POLE 3 WIRE S/N 240V AC (INSULATED GROUNDABLE NEUTRAL)
Fig-1 30 GHN321N
135.00 10 35.00 GHN321NW
215.00 10 35.00 ECHA 1
1
⁄2 337
1
⁄2 5
60 GHN322N
230.00 1 14.00 GHN322NW
354.00 1 14.00 ECHS 3 10 7
1
⁄2 15 10
100 GHN323N
463.00 1 23.00 GHN323NW
522.00 1 24.00 ECHS 7
1
⁄2 15 15 30 20
200 GHN324N
961.00 1 47.00 GHN324NW
1364.00 1 48.00 ECHS 15 — 25 60 40
400 GHN325NH
2918.00 1 128.00 GHN325NWH
3954.00 1 130.00 ECHV
15 — 50 125 50
400 GHN325N 2940.00 1 153.00 GHN325NW 3977.00 1 157.00 ECHV
15 — 50 125 50
600 GHN326NH
5764.00 1 133.00 GHN326NWH
7311.00 1 135.00 ECHV
15 — 75 200 —
600 GHN326N 5795.00 1 159.00 GHN326NW 7345.00 1 159.00 ECHV
15 — 75 200 —
FUSIBLE 3 POLE 4 WIRE S/N 240V AC (INSULATED GROUNDABLE NEUTRAL)
Fig-2 30 GHN421N 215.00 5 24.00 GHN421NW 320.00 5 24.00 ECHA 1
1
⁄2 337
1
⁄2 5
60 GHN422N 354.00 1 15.00 GHN422NW 481.00 1 15.00 ECHS 3 10 7
1
⁄2 15 10
100 GHN423N 616.00 1 25.00 GHN423NW 890.00 1 25.00 ECHS 7
1
⁄2 15 15 30 20
200 GHN424N 1364.00 1 49.00 GHN424NW 1615.00 1 50.00 ECHS 15 — 25 60 40
400 GHN425NH
3458.00 1 136.00 GHN425NWH
4170.00 1 138.00 ECHV
15 — 50 125 50
400 GHN425N 3484.00 1 158.00 GHN425NW 4192.00 1 162.00 ECHV
15 — 50 125 50
600 GHN426NH
6456.00 1 138.00 GHN426NWH
8661.00 1 141.00 ECHV
15 — 75 200 —
600 GHN426N 6491.00 1 161.00 GHN426NW 8697.00 1 165.00 ECHV
15 — 75 200 —
NON-FUSIBLE 3 POLE 240V AC (SEE PREVIOUS PAGE FOR 2 POLE, 30 AMPS;
USE 3 POLE FOR 2 POLE APPLICATION FOR 60–200 AMPS)
Fig-3 30 GUN321 176.00 5 24.00 GUN321AW 332.00 5 24.00 ECHA — 3 — 7
1
⁄2 5
60 GUN322 230.00 1 12.00 GUN322AW 494.00 1 13.00 ECHS — 10 — 15 10
100 GUN323 543.00 1 23.00 GUN323AW 925.00 1 24.00 ECHS — 15 — 30 20
200 GUN324 940.00 1 46.00 GUN324AW 1595.00 1 47.00 ECHS — 15 — 60 40
Accessories and Lug Data —
See pages 5-11 and 5-12.
Dimensions —
See pages 5-13, 5-14 and 5-15.
Knockout Drawings —
See pages 5-16 and 5-17.
Figure 1 Figure 2 Figure 3
“G“ Series switches are UL Listed for use on circuits
capable of delivering up to 100,000 Amps RMS
symmetrical fault currents, provided Class “R“ or “T“
fuses and appropriate rejection or adapter kits are
installed. T-fuses can only be used on 100–600 Amp.
100–600A switches can also be used with Class J fuses.
Starting current of motors above standard horsepower
rating may require use of time delay fuses.
These switches are UL Listed for application on
grounded B systems.
Suitable for 3-pole motor loads.
Has service entrance label, neutral factory installed.
400A and larger Type 3R switches have no provisions
for mounting hubs. Drill or punch hole in the field to
accommodate hub size desired.
Height reduced switch (45.25 rather than 56 inches in
height) for use with 500MCM or smaller conductors.
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