POWERS® CONTROLSMechanical Line Voltage ControlsQuick Reference GuideA6V11210110
ThermostatsAirflow SwitchesPressure-Electric Switche
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Room Temperature Line Voltage Mechanical Thermostats
Features
- Single setpoint dial
- Exposed bimetal thermometer
- Temp. range from 50-90°F (10 -30°C)
- High and low limit stops
- Standard or heavy-duty models
- Dual Fahrenheit/Celsius scale plate
UL/CSA approved
ApplicationsThe 134 series Line Voltage Room Thermostat is an “On/Off” room thermostat used in heating and cooling applications. These units control heating and cooling HVAC equipment or year-round air conditioning units in commercial or residential installations.Thermostats are available with either SPST or SPDT contact action rated with motor ratings up to 8A FLA @ 240 Vac. Click on the the following link to download the technical instruction document.Room Temp Line Voltage Thermostat Technical Instructions
Low-Temperature Detection Line Voltage Mechanical Thermostats
Features
- Compact and durable construction
- Low temperature ranges suited for operation around freezing temperatures
- Manual or automatic reset models
- Electroplated copper capillary tube for long term sensitivity and durability
- SPDT or DPST models
- Universal mounting bracket included
- UL/CSA approved
ApplicationsThe 134 series remote bulb thermostats are ideally suited for detecting potential freeze-up conditions of heating coils, cooling coils, liquid heating pipes, and similar applications.The Low Temp Detection Cut-out & Alarm Thermostat has a DPST main switch used to stop the supply fan motor when temp at the sensing element falls below the set point. Aux switch provides an alarm.The main contacts have motor ratings to 8A @ 240 Vac. Click on the following link to download the technical instruction document.Low Temp Detect Cut-out Alarm Thermostat Technical InstructionsThe Low-Temperature Detection Thermostat is a remote bulb instrument with an SPDT switch that closes and opens a circuit in both directions. The switch is rated to 240 Vac at 8A FLA motor load. Click on the following link to download the technical instruction document.Low Temp Detect Remote Bulb Thermostat Technical Instructions
Mid-Temperature Range Line Voltage Mechanical Thermostats
Features
- Temperature-sensitive, liquid-filled element
- SPDT snap-acting switches
- Temp. Range from 30 to 110°F (-1 to 43°C)
- Enclosed switches suitable for low or line voltage power switching
- Gray baked enamel case
- UL/CSA approved
ApplicationsThe 141 series Line Voltage Remote Bulb Thermostat is a two-position electric line voltage thermostat with a remote bulb. This device has an SPDT switch with motor ratings to 8A FLA @ 240 Vac.This thermostat is used for control in heating and cooling applications. Typical applications include summer-winter change when two-position “On/Off” control is acceptable. Click on the following link to download the technical instruction document.Mid Temp Range Remote Bulb Thermostat Technical Instructions
High-Temperature Limit Control Line Voltage Mechanical Thermostats
Features
- Temp sensitive, liquid-filled element
- SPST or SPDT snap-acting switches
- Temperature Ranges to 240°F (110°C)
- Externally adjustable set point dial
- Gray baked enamel case
- UL/CSA approved
Applications
These 141 series thermostats are typically used as high limit controls when a “lock-out” type control is desired or required by local specification or building code.The Surface Mounted Thermostat provides an SPDT electrical switch and is designed especially for mounting on pipes. Click on the following link to download the technical instruction document.High Temp Surface Mount Thermostat Technical Instructions
The Duct Mount High Limit Control Thermostat has a rigid bulb, bimetal, and tube design. The thermostat is often wired to shut down A/C or ventilating fans when the duct air temp becomes excessive. Click on the following link to download technical instructions.High Limit Control Duct Mount Thermostat Technical Instructions
The Line Voltage Remote Bulb Thermostat is a two-position electric line voltage thermostat with a remote bulb on a six-foot-long capillary having an SPDT switch with motor ratings to BA @ 240 Vac. Click on the following link to download the technical instruction document.High Temp Remote Bulb Thermostat Technical Instructions
Differential Static Pressure Line Voltage Airflow Switch
Features
- Available in ranges:o 0.05” to 1.0” WC (12.5 to 249 Pa)o 1 to 12” WC (249 to 2988 Pa)
- Available with auto reset
- Can be used in multiple applicationso Proof of airflowo High flow limit cut outo Dirty air filter indication
- UL/CSA approved
ApplicationsThis 141 series Airflow Switch senses static differential pressure and the diaphragm-operated snap switches actuate electrical circuits.Auto-reset and manual reset models are available.These Air Flow Switches are available with either SPST or SPDT switches with noninductive ratings up to 15A from 120 to 277 Vac.Click on the following link to download technical instructions.Differential Pressure Airflow Switch Technical Instructions
Line Voltage Mechanical Humidistat
Features
- Single setpoint dial
- Measurement range from 0 to 70% Relative Humidity
- Humidification OFF setting
- Dehumidification OFF setting
- SPDT snap-acting contacts in a dust-protected enclosure
- UL/CSA approved
ApplicationsThe 134 series Line Voltage Humidistat is used to control humidifying and/or dehumidifying equipment in residential, commercial, and industrial applications.The 134- Humidistat has SPDT contact action rated up to 3A FLA @ 240 Vac. Click on the following link to download the technical instruction document.Line Voltage Humidistat Technical Instructions
Pneumatic Control System Differential Pressure-Electric Switch
Features
- DPST or SPDT snap acting switches
- Adjustable or fixed differential models
- Long life, heavy duty switch contacts
- 2-30 psi pressure control range
- Not position sensitive
- Mounting bracket included
- UL/CSA approved
ApplicationsThe 134 series Pressure Electric Switches actuates electrical circuits from pneumatic control signals. Typical applications include thecontrol of air compressors, fans and resistance heating elements.The adjustable differential Pressure Electric Switches have normally open or normally closed models for application flexibility. DPST snapacting switch. The main contacts have motor ratings to 8A @ 240 Vac. Click on the following link to download technical instructions.Adjustable Differential Pressure-Electric Switch Technical Instructions
This fixed differential Pressure Electric Switch has an SPDT snap-acting switch rated to 240 Vac at 8A FLA motor load. Click on the following link to download the technical instruction document.Fixed Differential Pressure-Electric Switch Technical Instructions
Product Part Numbers
| Part Number | Product Description |
| 134-1084 | Room Thermostat, 1.8°F differential |
| 134-1085 | Room Thermostat, 3.0°F differential |
| 134-1086 | Room Thermostat, Concealed, 1.8°F differential |
| 134-1504 | Low Temp Detection Thermostat, DPST |
| 134-1510 | Low Temp Detection Thermostat, Auto Reset |
| 134-1511 | Low Temp Detection Thermostat, Manual Reset |
| 141-0520 | Mid Temp Remote Bulb Thermostat |
| 141-0521 | High Temp Limit Remote Bulb Thermostat |
| 141-0522 | High Temp Surface Mount Thermostat |
| 141-0530 | High Temp Duct Mount Thermostat |
| 141-0518 | Airflow Switch, SPDT, Auto Reset, 1” to 12” WC |
| 141-0575 | Airflow Switch, SPST, Manual Reset, 1” to 12” WC |
| 141-0574 | Airflow Switch, SPDT, Auto Reset, 0.05” to 1” WC |
| 134-1450 | Pressure Electric Switch, N-O, DPST, close on rising |
| 134-1451 | Pressure Electric Switch, N-C, DPST, open on rising |
| 134-1460 | Pressure Electric Switch, SPDT, Fixed Differential |
| 134-1861 | Line Voltage Humidistat, SPDT, 120/240V |
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Information in this publication is based on current specifications. The company reserves the right to make changes in specifications and models as design improvements are introduced. POWERS is a registered trademark of Siemens Industry, Inc. Other product or company names mentioned herein may be the trademarks of their respective owners. © 2019 Siemens Industry, Inc.
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Document No. A6V11210110Printed in the USA
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