Murphy TSB User Manual

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.

Description

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 single­pole, 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 non­classified areas.

Applications

• Engine Coolant

• Irrigation Systems

• Compressors

• Oil Field Systems

• Engine Lubrication

• Construction equipment

• Mobile Equipment

• Marine Engines

• Generators

• Electric Motors

Features

• 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)

Specifications

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

**

Model TSB

TSB-9137B

Revised 04-06

Catalog Section 10

(00-02-0051)

Direct Mount Temperature Switch

TSB-9137B page 2 of 2

Dimensions

To order the TSB model use the diagram below.

TSB – R230 – 3/8

Connection Size

Standard Switch Trip Point

Specify trip point value. Example: TSB-R200

Standard Switch Trip Point

Values (rising)*

R165 = 165°F (74°C)
R180 = 180°F (82°C)
R200 = 200°F (93°C)
R205 = 205°F (96°C)
R210 = 210°F (99°C)
R220 = 220°F (104°C)
R225 = 225°F (107°C)
R230 = 230°F (110°C)
R240 = 240°F (116°C)
R250 = 250°F (121°C)

* Non standard trip points require a minimum quantity order.

Trip point must be in 5°F increments between 165– 250°F (74–121°C).

Switch Reset Differential

±15°F (±8.3°C)

Switch Repeatability

±3°F (1.7°C)

How to Order

**

Standard connection.

†

Includes copper seal.

Blank = 1/2-14 NPT**10-05-0131

**

1/4 = 1/4-18 NPT 10-05-0167
3/8 = 3/8-18 NPT 10-05-0069
5/8 = 5/8-18 UNF 10-05-0068
3/4 = 3/4-14 NPT 10-05-0105

7/8 = 7/8-9 UNC 10-05-0093
3/8B = 3/8-19 BSPT 10-05-0284
1/2B = 1/2 BSPT 10-05-0330
M14 = 14 mm x 1.5

†

10-05-0104

†

M16 = 16 mm x 1.5†10-05-0514

†

M18 = 18 mm x 1.5†10-05-0399

†

M20 = 20 mm x 1.5†10-05-0670

†

M22 = 22 mm x 1.5†10-05-0606

†

M24 = 24 mm x 1.5†10-05-0907

†

Installation Instructions

Mounting

1. The TSB can be mounted in horizontal or vertical angles (do not
mount the switch facing down).

2. Install the TSB switch in the engine water jacket location

recommended by the engine manufacturer.

3. Install the appropriate adapter nut into the engine water jacket. Use
thread sealant such as Teflon

®

tape as necessary.

4. Insert the sensing bulb through the adapter nut. The sensing bulb
must be fully immersed in coolant/liquid flow so liquid flows
across the sensing bulb.

5. Tighten the 5/8-18 UNF-2A compression nut to complete a liquid
tight seal.

Wiring

CAUTION:

DISCONNECT

Electrical

Power before wiring.

1. See wiring schematic below.
Switch contacts are shown with no
temperature applied to the
TSB switch.

2. A spade (forked) terminal
is recommended for all TSB
switch connections.

3. Complete the wiring operation
making sure the voltage and current requirements are within the
TSB switch electrical rating.

WRONG

UP

M

o

u

n

t

i

n

g

A

n

g

l

e

Normally

Closed (N.C.)

Normally

Open (N.O.)

Common (C)

Teflon is a trademark of Dupont.

Warranty

A limited warranty on materials and workmanship is given with this FW
Murphy product. A copy of the warranty may be viewed or printed by going to
www.fwmurphy.com/support/warranty.htm

Printed in U.S.A. 10 91 181

In order to consistently bring you the highest quality, full featured products, we reserve the right to change
our specifications and designs at any time. MURPHY, the Murphy logo are registered and/or common law
trademarks of Murphy Industries, Inc. This document, including textual matter and illustrations, is copyright
protected by Murphy Industries, Inc., with all rights reserved. (c) 2006 Murphy Industries, Inc.

www.fwmurphy.com

918.317.4100 Email: sales@fwmurphy .com

Accuracy

165– 210°F ±5°F (±2.7°C)
Water/glycol 10% used for
setpoint

215– 230°F ±7°F (±3.8°C)
240– 250°F ±10°F (±6.5°C)
Heat transfer fluid used for
setpoint (276 viscosity @ 100°F)

2-1/4 in.
(57 mm)

NO C NC

4-11/64 in.

(106 mm)

5/8-18 UNF-2A

1/4 in. Dia.

(6 mm)

2-1/32 in.
Diameter
(52 mm)

Slot head terminal

screws (4-40, UNC-2A)

1-9/32 in.

(33 mm)

1/2-14 NPT
(standard)