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Product Specifications:
| Connection Size | 1/2" |
| Connection Type | NPT |
| Contact Rating (ac) | 22.2A @ 240V (Locked Rotor), 3.7A @ 240V (Full Load), 44.4A @ 120V (Locked Rotor), 7.4A @ 120V (Full Load) |
| For Pipe Size | 1/2" |
| Height | 4 2/5" |
| Includes | Switch |
| Length | 3 4/5" |
| Max. Media Temp. | 225°F |
| Max. Pressure | 100 psi |
| Media Temp. Range | 32°F to 225°F |
| Min. Ambient Temp. | 32°F |
| Min. Fluid Temp. | 32 F |
| Min. Media Temp. | 32°F |
| Overall Height | 4 2/5" |
| Overall Length | 3.8" |
| Overall Width | 3 4/5" |
| Product Datasheet | mcdonnell-miller-fs1-w.pdf |
| Series | FS1 Series |
| Standards | Ce, Csa Certified, Ul Listed |
| Switch Enclosure | NEMA 1 |
| Switch Type | SPDT |
| Type | Electrically Operated, General Purpose |
| Voltage | 120/240V AC |
| Wetted Material | Brass, EPDM |
| Width | 3 4/5" |
Shipping Info:
| Ship weight (kg) | 1.35 |
| Ship height (cm) | 21.34 |
| Ship length (cm) | 8.64 |
| Ship width (cm) | 7.62 |
| Country of Origin | US |
Documentation:
Product Variants
| Product | Model | Connection Size | Housing Material | For Pipe Size | Min. Flow Rate | Max. Flow Rate | Switch Enclosure | Max. Pressure | Media Temp. Range | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
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FS-200-W | 1" | Steel | - | - | 14.8 GPM | - | 160 psi | - | €1,152.49 | |
![]() |
FS-204-W | 1" | Aluminum | - | - | - | - | 160 psi | - | €767.59 | |
![]() |
FS7-4 | 1 1/4" | Brass | 1 1/4", 16" | 4.8 GPM | 4.8 GPM | NEMA 1 | 300 psi | 32°F to 300°F | €1,066.83 | |
![]() |
AF-1 | 8" | Aluminum | - | - | - | NEMA 1 | - | 32°F to 300°F | €597.41 | |
![]() |
FS4-3 | 1" | Stainless Steel | 1" | 6 GPM | 10.2 GPM | - | 160 psi | 32°F to 300°F | €590.62 | |
![]() |
FS8-W | 1" | Stainless Steel | 1" | 4.9 GPM | 17.6 GPM | NEMA 4X | 160 psi | 32°F to 225°F | €634.65 | |
![]() |
QVE1900U | 1" | Stainless Steel | 1 1/4", 8" | 6 GPM | - | NEMA 4 | - | -4°F to +248°F | €288.91 |
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Contact us
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MCDONNELL & MILLER FS1 113200 Flow Switch, 1/2 Inch SPDT
€960.55 /unit




