Specification

Discount Schedule GDSM and HDSM 2008-2009 Electrical Distribution Products
5-4
SAFETY SWITCHES 5
Siemens / Murray Original Folio # 5-4 Murray 2005 Sie
Safety Switches
General Duty Compact — 10,000 Amp Withstand Plug Fuse Type 1 & Type 3R
General Duty Stand-by Power Panel
GU221
GP321N
Horsepower Rating
Indoor TYPE 1 Outdoor TYPE 3R
Single Phase Three Phase
120V AC 240V AC 240V AC
Fuse Std. Approx. Std. Approx.
Symbol Type Cat # List Each Pkg. Wgt. Lbs. Cat # List Each Pkg. Wgt. Lbs. Hub Std Max

Std Max

Std Max

30 AMP FUSIBLE 1 POLE 2 WIRE S/N 120V AC (INSULATED GROUNDABLE NEUTRAL)
Fig-1 Plug GP211N 81.00 10 33.60 — — — — —
1
⁄2 2————
30 AMP FUSIBLE 2 POLE 3 WIRE S/N 240V AC (INSULATED GROUNDABLE NEUTRAL)
Fig-2 Plug GP321N 104.00 10 37.00 GP321NW 207.00 5 35.00 ECHA
1
⁄2 21
1
⁄2 3——
Fig-3 None GU221 120.00 10 33.00 GU221AW 216.00 5 35.00 ECHA — 2 — 3 — —
60 AMP NON-FUSIBLE 2 POLE 240V AC SPECIAL APPLICATION SWITCH
Fig-4 None — — — — GU222AW 216.00 10 36.00 —

—— —10— —
Accessories and Lug Data —
See pages 5-11 and 5-12.
Dimensions —
See pages 5-13, 5-14 and 5-15.
Knockout Drawings —
See page 5-16.
Figure 1 Figure 2 Figure 3 Figure 4
Hubs
Conduit Approx.
Size List Wgt. Lbs.
(Inches) Cat # Each (Std. Pkg. — 1)
3
⁄4 ECHA075 39.00 .10
1 ECHA100 39.00 .10
1
1
⁄4 ECHA125 39.00 .10
Std. Approx.
Cat # List Each

Pkg. Wgt. Lbs. Hub
100A 2 POLE 3 WIRE S/N 120/240V AC OUTDOOR TYPE 3R

DUL313NW

590.00 1 19.00 ECHS

Starting current of motors above standard horsepower
rating may require use of time delay fuses.

Bottom cable entry & exit only.

Suitable for service entrance application. Neutral factory
installed. UL1008 listed as a non-automatic transfer
switch under file #E315030. Suitable for use as Transfer
Equipment on optional stand-by systems as defined by
Article 702 of the NEC.

Wire ranges (75°C Cu/Al)
Line, load & neutral (1) #14-1
Service ground (1) #14-4

Discount Schedule HDSM.
This unique device provides an economical means to transfer from normal to an alternate source of
power. It contains two 100A, 2-pole circuit breakers interlocked in a “double throw” configuration
and supplies both overload and short circuit protection (10,000 AIC max.). The external handle is
padlockable in the OFF position.
N
05-Safety Switches.qxd 3/11/08 12:22 PM Page 5-4