
AC Controls
Manual Motor Starter Switches
Dimension / Wiring Diagrams
3.97 in.
(100.8 mm)
Table 15.8 Explosion Proof NEMA 7 & 9 Enclosures
| Type of |
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Device | Operator | Type | |
Class SMF | Toggle | FR2, FR2H | |
Fractional | FR1, FR1H | ||
HP Starter |
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Class MMF |
| KR2, KR2H | |
Motor | Toggle | ||
Starter | KR2, KR1H | ||
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Switch |
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1.38in.
(35.05 mm)
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| 4.38 in. |
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| (111.25 mm) | |
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| 6.38 in. |
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| (162 mm) |
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| 5.75 in. |
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| (146 mm) |
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| 9⁄32 |
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| Padlock |
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Center Line |
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| Hole |
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(Conduit) |
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| 0.75 in. |
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0.31 in. | 1.38 in. | 0.72 in. | (19.05 mm) | 1.19 in. |
(7.94 mm) | Pipe Tap | (30.23 mm) | ||
Mtg. Holes | (34.93 mm) | (18.29 mm) | (Bottom Only) |
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Application
Class 12 manual starting switches are designed to economically start and stop inherently protected single and polyphase motors as used in light machine tools, pumps, blowers, and
Wiring Diagrams
Features
This switch is compact, economical, and easily wired using pressure type screw connectors. A rugged over center toggle mechanism results in a long life with weld free operation. It is available for sur- face mounting in a NEMA 1 enclosure, for flush mounting on a standard depth switch box or in custom panels. A pilot light for 120, 208 / 240, or 480 volts may
be added at any time before or after installation.
Table 15.9
Class 12 Manual Starting Switches
| Maximum Horsepower |
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| 115 | 230– | 120V | Continuous |
Type | 575 | |||
Volts | Volts | DC | Amp Rating | |
2 | 3 | 1 | 24 | |
— | 2 | — | 15 |
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15
AC Controls
Dimension Drawings
| NEMA 1 |
| Open with Flush Plate | |
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288 | Siemens Electrical Products and Systems | CSI Section 16160 | |
Specification Guide | |||
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