Specification

ManualsBrandsSiemens ManualsKitchenDouble Throw 100 Amp 240-Volt 3-Pole Indoor Fusible Safety Switch

Description & Application

Double throw safety switches are

intended to transfer loads from one

power source to another. All two- and

three pole double throw switches are

suitable for use as service equipment.

All are UL listed. Switches are rated for

use on systems up to 10,000A when

protected with Class H fuses or

100,000A when protected with Class R

or Class T fuses¡. They can also be used

to connect a single source of power to

either of two loads. In this application it

is necessary to field modify fusible

switches so that the fuses are on the

load side of the switching mechanism.

A cover interlock is provided on all

ampere ratings. The operating handle

may be padlocked in the OFF position.

Fuse Capabilities of Fusible Switches

Amp

Fuse Type

Rating H R T J

30 & 60A, 240V Std Yes (kit) No No

30 & 60A, 600V Std Yes (kit) No Yes

➂

100 & 200A Std Yes (kit) Yes (kit) Yes

➂

400 & 600A DTF No No Yes

➂

Std

➃

OFF

Number Type 1– Indoor Type 3R – Outdoor➀ Type 12/3R Industrial Type 4X – Stainless Steel

System Voltage of Poles Amps Catalog Number Catalog Number Catalog Number Catalog Number

➀ Use HS T

ype hubs for 30–200A switches; 400A and larger switches do not have hub provisions.

➁ All Heavy Duty double throw switches with catalog numbers starting with “DT” are rated 200,000 AIC max. when protected by Class R, J or T fuses.

Fuse ampere rating must not exceed switch ampere rating.

➂ Move load base.

➃ Catalog No. F355SSDTK will accept Class T Fuse only

➄ Four pole switches are not approved for service entrance.

Double Throw Switches

Heavy Duty Fusible (30-200A with Class H fuse provisions)

➁

2 200 DTF224 DTF224R — —

30 DTF321 DTF321R — —

240

60 DTF322 DTF322R — —

Volt AC

100 DTF323 DTF323R — —

200 DTF324 DTF324R — —

250

400 DTF325 — — —

Volt DC

600 DTF326 — — —

30 DTF361 — — —

600

60 DTF362 — — —

Volt AC,

100 DTF363 DTF363R — F353SSDTK

250

200 DTF364 DTF364R — F354SSDTK

Volt DC

400 DTF365 — — F355SSDTK

➃

Heavy Duty Non-Fusible

➁

30 DTNF221 — — —

60 DTNF222 — — —

2 100 DTNF223 — — —

200 DTNF224 DTNF224R — —

240

400 DTNF225 DTNF225R — —

Volt AC

30 DTNF321 — — —

60 DTNF322 — — —

250

100 DTNF323 DTNF323R — —

Volt DC

3 200 DTNF324 DTNF324R — —

400 DTNF325 — — —

600 DTNF326 — — —

800 DTNF327 — — —

30 DTNF361 DTNF361R DTNF361J DTNF361S

60 DTNF362 DTNF362R DTNF362J DTNF362S

3 100 DTNF363 DTNF363R DTNF363J DTNF363S

200 DTNF364 DTNF364R DTNF364J DTNF364S

400 DTNF365 DTNF365R NF355HDTK NF355SSDTK

600

600 DTNF366 DTNF366R — —

Volt AC

800 DTNF367 DTNF367R — —

1200 DTNF368 DTNF368R — —

250

➄

30 — NFR451DTK — —

Volt DC

60 — NFR452DTK — —

100 — NFR453DTK — —

200 NF454DTK NFR454DTK — NF454SSDTK

400 NF455DTK NFR455DTK — —

600 NF456DTK NFR456DTK — —

800 NF457DTK NFR457DTK — —

OFF