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INSTRUCTION

i

Read this instruction before installation 

and wiring of the product

DBTV

Consult documentation in all cases where this symbol 

is used, in order to find out the nature of the potential 

hazards and any actions to be taken

1

DBTV

Mechanical immersion thermostat 

DBTV is a serie of electro-mechanical thermostats for use in cooling, 

heating and ventilation systems. 

Technical data

Sensor element   

Liquid-filled copper bulb

Contacts 

 

Dust-tight microswitches with SPDT  

 

 

 

 

contacts (heat/cool)

Breaking capacity   

15 (8) A, 24...250 V AC 

Ambient temperature 

-35…+65°C

Ambient humidity   

10…90 % RH (non-condensing)

Housing  

  

Bayblend

®

 base, ABS cover

Protection class   

IP65

Isolation class 

 

1

Weight   

 

440 g

Storage temperature 

-40…+70°C

Storage humidity   

up to 95% RH

Article

Temperature 

range

 

Hysteresis

Max. temp. 

bulbo

Hidden 

setpoint

DBTV-1

-30…+30 °C

2…20 K

60 °C

-

DBTV-2U

-30…+30 °C

1 K

60 °C

X

DBTV-7

0…60 °C

2…20 K

75 °C

-

DBTV-7U

0…60 °C

2…20 K

75 °C

X

DBTV-8

0…60 °C

1 K

75 °C

-

DBTV-8U

0…60 °C

1 K

75 °C

X

DBTV-11

50…120 °C

1 K

140 °C

-

DBTV-16

20…90 °C

2…20 K

100 °C

-

DBTV-17

20…90 °C

1 K

100 °C

-

DBTV-17U

20…90 °C

1 K

100 °C

X

DBTV-18

20…90 °C

Maximum manual 

reset

100 °C

-

DBTV-18U

20…90 °C

Maximum manual 

reset

100 °C

X

Before installation or maintenance, the power supply must first be discon

-

nected in order to prevent potentially lethal electric shocks!  Installation or 
maintenance of this unit should only be carried out by skilled professio

-

nals.

Installation

The unit can be mounted in any position. 

Remove the external knob and unscrew both screws on the cover. Use 
the supplied screws when mounting on wall or other surface. 

 

Wiring

Heating:
Connect to the red and blue terminal. The contact will open when the 
temperature rises. 

Cooling:
Connect to the red and white terminal. The contact will open when the 
temperature drops. 

Logic activation

Hysteresis adjustment in the stage

Reset

The set range may be calibrated by carefully turning screw under the 

cover.

+

-

 

REV

.A

 

JUN 17  

EN

Red

Blue

White

ON

ON

OFF

OFF

Δ

NS

Δ

NS

Heating

Contacts red-blue

Cooling

Contacts red-white

ΔNS: hysteresis
TSET: setting setpoint
ON: closed contact
OFF: open contact

regulation from 2...20 K

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