Murphy TSB Folheto

TSB-9137B page 1 of 2

**Products covered by this bulletin comply with EMC Council directive 89/336/EEC regarding 

electromagnetic compatibility except as noted. 

The TSB switch is a direct mount switch for
temperature sensing. It has one limit contact
that can be used to activate an alarm, actuate
indicator lights or shut down equipment.

The construction of this instrument is the
same as our time-proven Swichgage

®

. A

precision machined brass mounting plate and
port captures a high quality stamped
beryllium copper diaphragm. The single-
pole, double-throw (SPDT) snap switch is
operated directly from the diaphragm, for
quick acting and positive switching. Trip
point is factory preset according to your
specifications.

Housing is weather sealed to prevent entry of
moisture, dust, etc. A glass-filled nylon
terminal block with quick-screw terminal
connections gives the TSB switch a real
advantage in industrial engine applications.
The TSB is ideal when reading is not
desired, but temperature is critical to
operational efficiency.

Intended for use in general purpose non-
classified areas.

Engine Coolant    

Irrigation Systems

Compressors    

Oil Field Systems

Engine Lubrication 

Construction equipment  

Mobile Equipment    

Marine Engines

Generators    

Electric Motors

Fits most engine applications 

SPDT snap-switch

Activates indicator lights, alarms or shut
down equipment 

Time-proven Swichgage construction

Easy wiring terminal block

Steel housing specially coated to 

resist corrosion 

Trip point is factory preset to your   

specifications (minimum quantities apply)

Housing: Plated steel.

Connections: Popular NPT and metric
(specify).

Diaphragm: Formed beryllium copper (heat
treated).

Sensing Bulb: Copper.

Terminal Block: Three # 4-40 screws.

Accuracy: See chart on page 2.

Contact Rating: SPDT 3 A @ 30 VDC
inductive.

Maximum Temperature: 325°F (163°C).

Factory Trip Point Setting: 210°F (99°C)
Rising.

Contact: Operates on rising temperature
only.

Shipping Weight: 10 oz (0.31 kg).

Shipping Dimensions: 4-3/4 x 4-3/4 x 
2-5/8 in. (121 x 121 x 67 mm).

NOTE: No customer replacement parts.

■

Limit Switch for Critical Temperature 

■

Operate Alarms or 

Shutdown Equipment

■

SPDT Snap-Acting Switch

■

Fits Most Engine Applications

**

TSB-9137B

Revised 04-06

Catalog Section 10

(00-02-0051)