Siemens 357 D Limitem Remote Bulb Thermostats
Limitem Remote Bulb Thermostats
357 D
The 357 D Limitem Remote Bulb Thermostat is a pneumatically-operated thermostat that is gradual, direct acting with a remote or averaging bulb.
• Direct acting only
• Remote or averaging bulbs for flexibility in installation
• Liquid-filled sensing element for rapid response to temperature changes
• Two-valve design reduces air waste
• Adjustable sensitivity
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| Cat # | Temperature Operating Range | Sensing Element | Capillary | Bulb | Maximum Ambient Temp. |
| 357-0003 | 20 to 100°F (-6.7 to +37.8°C) | Remote Bulb | 8’ (2.4 m) | 3/8” x 4’ (0.95 mm x 10.2 cm) | 201°F (94°C) |
| 357-0004 | 5 to 145°F (1.7 to 62.8°C) | Averaging Bulb | 40’ (12.2 m) | 3/32” x 15’ (0.24 mm x 457 cm) | 210°F (99°C) |
| 357-0005 | 120 to 230°F (48.9 to 110°C) | Remote Bulb | 40’ (12.2 m) | 3/8” x 4” (0.95 mm x 10.2 cm) | 261°F (127°C) |
| 357-0001 | 35 to 145°F (1.7 to 62.8°C) | Averaging Bulb | 6” (15 cm) | 3/32” x 8’ (0.24 mm x 244 cm) | 211°F (99.4°C) |
| Control Action: | Direct or Reverse | |
| Maximum Supply Air Pressure: | 30 psi (207 kPa) | |
| Sensitivity Range (adjustable): | 0.25 to 2 psi/°F (3 to 25 kPa/°C) | |
| Factory Sensitivity Setting: | 1.25 psi/°F (15 kPa/°C) | |
| Temperature Response: | 0.50°F (0.9°C) | |
| Dial Graduations: | 5°F (2.7°C)/2°C (3.6°F) | |
| Maximum Ambient Temperature | ||
| Case: | 200°F (93°C) | |
| Bulb (Direct Acting): | 225°F (107°C) | |
| Bulb (Reverse Acting): | 250°F (121°C) | |
| Nominal Air Supply Pressure: | 18 to 25 psi (124 to 172 kPa) | |
| Maximum External Pressure (on bulb): | 250 psi (1722 kPa) | |
| Mounting: | Flange or 3/8" NPT | |
| Air Connections: | 1/8" NPT | |
| Dimensions | ||
| Bulb Length: | 18" (457 mm) | |
| Flange OD: | 2.56" (65 mm) | |
| Case: | 1.5" Diameter x 3" L (33 mm Diameter x 76 mm L) |
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| Shipping Weight: | 2.0 lb. (0.91 kg) | |
