Introducing compact, durable, easy to use the Explosion Proof Stainless Steel Vertical Float Switch APG FS-400 Series is certified for use in Class 1 Division 1, Division 2, Class 2 Division 1, Division 2, Class 3 hazardous locations. Backed up with NFC and NEMA 4x approvals. With all stainless steel wetted materials, operating temperatures up to 500° F, and a 100 W switch, the series FS-400 float switch fits a wide range of applications in two standard configurations.
Features:
- Class 1 Division 1/2
- Class 2 Division 1/2
- Class 3
- NEMA 4x
- NSF 169 certified
- Compact size
- Reliability / long switch life
- Shock resistive construction
- Switch rated for 100 W
- Can be used in a wide range of liquids
- Operating temperatures up to 500° F (260° C)
- CSA Explosion Proof (Standard Temp) and General Use (High Temp)
- Vertical mounting
- 316L SS material
- Made in the USA
Compact Size:
- From the top of the mounting threads to the bottom of the stem, the FS-400 is less than 3.5″ long, and the float is just over 2″ wide
Temperature Ranges:
- The FS-400-S has an operating temperature range of -40° to 368° F (-40° to 187° C), and the FS-400-HT extends that range to -40° to 500° F (-40° to 260° C)
Certifications:
- All FS-400 switches are NSF 169 certified
User Reversible Operation:
- FS-400 float switches come standard with Normally Open operation. The e-clip at the bottom of the stem is easily removed to change to orientation of the float, changing the switch operation to Normally Closed.
Common Applications:
- C I, D1 Hazardous Locations
- Food / Beverage
- Chemical
- Water / Wastewater
Specifications:
| Series | FS-400 | |
| Model | FS-400-S | FS-400-HT |
| Switch action for the FS-400 is reversible. | ||
| Standard is NO, user reversible for NC. | ||
| Performance | ||
| Pressure Rating | 200 psi (13.8 bar) | 500 psi (34.5 bar) |
| Minimum S.G. | 0.6 | |
| N.O. Actuation | 0.220” ± 0.015” (5.59 mm ± .38 mm) | |
| N.C. Actuation | 0.160” ± 0.015” (4.06 mm ± .38 mm) | |
| Hysteresis | 0.070” ± 0.010” (1.78 mm ± .25 mm) | |
| Environmental | ||
| Operating Temp. | -40º to 368ºF (-40º to 187ºC) | -40º to 500ºF (-40º to 260ºC) |
| Liquids | Chemicals, Food, Potable Water | |
| Electrical | ||
| Switch Rating | ||
| Max Capacity | 100 W (resistive load only) | |
| Max Current (AC, 50/60 Hz) | 240 VAC: 0.416 A; 120 VAC: 0.833 A; ≤ 100 VAC: 1 A | |
| Max Current (DC) | 120 VDC: 0.833 A; ≤ 100 VDC: 1 A | |
| Life Expectancy | 106 -108 (# of actuations; depedant on electrical load) | |
| Lead Wires | #22 AWG, Teflon 24 - 99 in. (610 - 2515 mm) | |
| Physical | ||
| Material | ||
| Stem | 316L SS | |
| Float | 316L SS | |
| Retainer | 316L SS | |
| Mounting | Vertical | |
| Certification | ||
| CSA/cCSAus Contract #237484 | Explosion Proof | General Use |
| Class I, Div 1 & 2, Groups A, B,C, & D, T3 | -- | |
| Class II, Div. 1, Groups E, F, T200°C | -- | |
| Class II, Div. 2, Groups F, G, T200°C | -- | |
| Class III | -- | |
| Ta -40° C to 187° C | -- | |
| Single Seal | ||
| NSF 169 | Yes | |
| Enclosure Rating | NEMA 4X |
Resources:
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APG FS-500 Explosion Proof Stainless Steel Vertical Float Switch
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