Differential pressure switch / differential pressure controller PREMASREG® DS

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€25.51
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The mechanical PREMASREG® DS 1 differential pressure switch/monitor with metal bracket serves to monitor above-atmospheric, differential and below-atmospheric pressure of clean air as well as gaseous, non-aggressive media in air ducts, air intake or exhaust devices. It is used as a flow monitor, differential pressure governor, pressure controller for flow monitoring at electric heating registers or for monitoring V-belts and filters. Further applications are found in air pressure deficiency protection, fan or air damper monitoring and limit value control. The switchpoint can be adjusted by means of an internal precision scale.

Pressure range
PREMASGARD® / PREMASREG®
Mounting
Connection set
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Mounting

with mounting ring

Pressure range

high adjustment accuracy due to individual laser-etched scale

for each switch

Switching capacity (Contact load)

5 (0.8) A, 250 V AC

4 (0.7) A, 30 V DC

Contact

single-pole potential-free changeover contact,

multi-layer contact, gold-plated (DDC compatible)

Media temperature

–30 ...+85 °C

Pressure connection

P1 (+) for higher pressure

P2 (–) for lower pressure

Ø 6.2 mm (nipples)

Electrical connection

0.14 - 1.5 mm2,

via terminal screws on circuit board

Housing

base: material PC (10 % GF),

colour light grey (similar to RAL 7035),

snap-on lid: material PC, transparent,

cable gland PG 11 with strain relief

Membrane

silicone, LSR (Liquid Silicon Rubber,

tempered at +200 °C, non-outgassing, LABS-free,

no emission of varnish-adhesion inhibiting substances),

long-term stability of switching points

due to trapezoidal bead membranes

Humidity

< 90 % r. H., non-precipitating air

Mounting

by 4-hole base ring, plastic

(included in the scope of delivery),

recommended mounting position:

vertical (pressure connections downward) – factory setting,

horizontal (cap up/ down)

Protection class

II (according to EN 60 730)

Protection type

IP 54 with top cover

1302-4026-1000-M40

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