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参数资料
| 型号： | 312-4 |
| 厂商： | OHMITE MANUFACTURING CO |
| 元件分类： | 开关 |
| 英文描述： | ROTARY SWITCH-4POSITIONS, SP4T, LATCHED, 30A, 20VDC, PANEL MOUNT |
| 文件页数： | 1/2页 |
| 文件大小： | 146K |
| 代理商： | 312-4 |
80
Ohmite Mfg. Co.
1-866-9-OHMITE Int’l 1-847-258-0300 Fax 1-847-574-7522 www.ohmite.com info@ohmite.com
Ohmite Mfg. Co. 1600 Golf Rd., Rolling Meadows, IL 60008 1-866-9-OHMITE Int’l 1-847-258-0300 Fax 1-847-574-7522 www.ohmite.com info@ohmite.com
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S T A N D A R D P A R T N U M B E R S F O R P O W E R T A P S W I T C H E S
Ohmite power Tap Switches
(high power rotary switches)
are constructed to provide
dependable, convenient
operation.
All Ohmite tap switches,
from 15 to 100 amps, have
ceramic arc-proof bodies and
metal alloy contacts. Their
all-soldered and all-riveted
construction assures mechani-
cal and operational integrity.
Even the smallest Ohmite Tap
Power Tap Switches
High-current, Non-shorting Type
Overall
Rating
Rating Max. no.
Diameter
Depth behind panel (in./mm)
Shaft
Model
(AC)
(DC)*
of taps (max., in./mm)
single
2 in tandem
3 in tandem
Torque
711
7A 125V
7A 20V
11
1.56 / 39.6
13/16 / 20.6
125/32 / 45.2
215/32 / 62.7
7-12 oz.-in.
111
15A 125V
15A 20V
11
2.19 / 56
11/8 / 28.7
23/4 / 69.9
—
1.5-3.8 in.-lbs.
212
20A 150V
20A 20V
12
2.25 / 57
13/4 / 44.5
43/16 / 106.4
63/16 / 157.2
3-7 in.-lbs.
312
30A 300V
30A 20V
12
3.31 / 84
21/4 / 57.2
45/8 / 117.5
7 / 177.8
3-7 in.-lbs.
412
50A 300V
50A 20V
12
4.25 / 108
27/16 / 61.9
51/32 / 127.8
75/8 / 193.7
3-8 in.-lbs.
608 100A 300V 100A 20V
8
6.25 / 159
35/16 / 84.1
613/16 / 173.0
105/16 / 261.9 25-35 in.-lbs.
*non-inductive load
All dimensions for reference only; consult factory for details.
Switch, rated at 7 amps, has
a reinforced non-metal body
and solid metal alloy contacts.
These units feature high cur-
rent handling capability in a
small package.
F E A T U R E S
“Slow-breaking, Quick-make”
action proved best for switching
AC current.
Non-shorting type disconnects
previous circuit before establish-
ing contact for succeeding tap.
Ceramic and metal construction
provides resistance to arcing,
burning and charring.
Tandem assemblies available as
standard models.
UL listed for models 111, 212,
312 and 412
RoHS compliant product avail-
able Jan. 2006 Add “E” suffix to
part number to specify.
S P E C I F I C A T I O N S
Material
Body: Ceramic, arc-proof
(models 212, 312, 412, 608).
Compression Molded Polyester
(model 111). Melamine Phenolic
(model 711)
Contacts: Silver alloy. Common
contact is rounded for assured
seating. Self-cleaning with built
in wiping action.
Terminals: Soldering. 711 also
accepts quick connectors; 412,
#10 screws; 608, 0.25” bolts.
Mounting
Model 711: Using 3/8-32 bushing
for 1/8” thick maximum panel.
Four non-turn lug positions are
possible on the single, unen-
closed switch. Recesses in body
of switch permit positioning of
non-turn washer at “12, 3, 6 and
9 o’clock.” 3/16 “ hole for non-turn
washer. Shaft 1/4”
Model 111: For 1/4” panel, maxi-
mum, using 3/8-32 bushing and
hex nut. A 3/16” hole is required
for the non-turn washer. Shaft
1/4”
Model 212: Using 3/8-32 threaded
bushing and hex nut. A 5/32” hole
is required for the non-turn pin.
Shaft 1/4”
Model 312: For 1/4” panel, maxi-
mum, use three 10-32 flat-head
machine screws 3/8” long. Shaft
1/4”
Model 412: For 1/4” panel, maxi-
mum, use three 10-32 flat-head
machine screws 3/8” long. A
5/16” hole in panel is required for
shaft.
Model 608: For 1” panel, maxi-
mum, three flat-head machining
screws 1/4-20, 11/4” long. Drill
a 7/16” hole in panel for shaft.
Shaft 3/8”
NOTE: Since all tap switches are
electro-mechanical devices, they
are subject to wear and, there-
fore, have a finite life.
Typical
tandem model
Model 711
Typical
ceramic style
See page 82 for knobs,
dials, and other hardware
3
60°
4
90°
5
120°
6
150°
7
180°
8
210°
9
240°
10
270°
11
300°
12
330°
Number
of
taps
*
711-
*
Single
unit
Total
rotation
711-
*-T2
2
in
tandem
711-
*-T3
3
in
tandem
111-
*
Single
unit
111-
*-T2
2
in
tandem
212-
*
Single
unit
212-
*-T2
2
in
tandem
212-
*-T3
3
in
tandem
312-
*
Single
unit
312-
*-T2
2
in
tandem
312-
*-T3
3
in
tandem
412-
*
Single
unit
412-
*-T2
2
in
tandem
412-
*-T3
3
in
tandem
Model 711
7A - 125V
Model 111
15A - 125V
Model 212
20A - 150V
Model 312
30A - 300V
Model 412
50A - 300V
3
80°
4
120°
5
160°
6
200°
7
240°
8
280°
608-
*
Single
unit
608-
*-T2
2
in
tandem
608-
*-T3
3
in
tandem
Model 608
100A - 300V
= Non-standard values subject to minimum handling charge per item
*
Insert number of taps at asterisk for complete part number (e.g. 111-3-T2)
Number
of
taps
*
Total
rotation
Check product availability at
www.ohmite.com
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