Pressure Switch Type RT

PRESSURE SWITCH TYPE RT

FUNCTION :

Indfos RT Series Pressure switch is produced using technology provided by Danfoss Denmark. These Switches are sturdy, robust and reliable devices meant for Industrial applications. Over one million units have been used in a variety of applications.
RT Series pressure switches utilize a seamless bellows as sensing element. The bellows can be either phosphor bronze or stainless steel to suit various kinds of process medium. The mechanism is enclosed in a weather proof (IP66) enclosure which can be of either DMC or Die Cast Aluminium. Various kinds of switching elements can be provided to meet required electrical load specifications. Both Range and Differential can be independently adjusted. All models feature 1% repeatability and device has clearly read setting scale.

APPLICATION :

Power Plants
Chemical/Petrochemical Plants
Steel rills
Pulp & Paper rills
Electric & Diesel Locomotive
Compressors
Machine Tools

SPECIFICATIONS :

Enclosure:

Plastic (Dough Moulded Compound) or Die Cast Aluminium

Enclosure Protection:

Weather proof to IP 66

Sesing Element:

Seamless Bellows (Phosphor Bronze or Stainless steel)

Max Process Temp.:

90C

Max Ambient Temp.:

- 40 to 70C

Switch Type:

1 SPDT

Switch Rating (Standard):

10A resistive 4A inductive 380 VAC, 12 W 220 VDC (Other ratings are also available)

Cable Entry:

2" NPT (F)

ORDERING TABLE :

Type

Code No.

Range
(kg/cm2)

Adjustable
Mechanical
Differantial (kg/cm2)

Max Test
Pressure
(kg/cm2)

Pressure Connection

RT-121(SB)

17-5215

(-1) TO 0

0.09 to 0.4

7

Triple Pole Single Throw (TPST) switch for 3 phase supply. Circuit breaks on increase of pressure.

Contact Rating:
Ie = 9A(AC3),
Ue = 500V,
Ie = 6A,
Ue = 220 VDC

RT-121(PB)

17-5219

(-1) TO 0

0.09 to 0.4

7

RT-113

17-5196

0 to 300 cm wg

10-50 cm wg

0.5

RT-112(SB)

17-5191

0.1 to 1.1

0.07 to 0.16

7