5320 BRADCO BLVD
MISSISSAUGA ON L4W 1G7
Tel: 905 625 5082
Fax: 905 625 5709

Pressure Switch

	External Adjustment Adjustable Deadband Compact Construction All Metal Enclosure

United Electric Controls introduces a new low cost pressure switch featuring an externally adjustable set point AND an internally adjustable deadband. The new 25 Series offers a self contained solution for direct control of AC loads up to 20 amps with adjustable pressure ranges up to 475 psi. The 25 Series is UL listed and is available with a Buna-N, Viton or EPDM diaphragm pressure sensor. The switch comes with a standard brass pressure connection, however, other materials are available for volume applications.

Specifications
Model Charts
How to Order

Specifications

Approvals:
Ul Listed, cUL certified, file E10667, E57086, CE approved to low voltage directive

Storage Temperature:
-65 to 160°F (-54 to 71°C)

Operating Ambient Temperature:
0 to 160°F (17 to 71°C) Set point shifts less than 1% of range for a 50°F (28°C) ambient temperature change.

Maximum Media Temperature:
Buna-N sensor: 200°F (93°C)

Enclosure:
Zinc plated steel with bright chromate finish

Enclosure Classification:
Complies with NEMA 1

Shock:
Set point repeats after 15 Gs, 10 millisecond duration

Vibration:
Set point repeats after 2.5 Gs, 5 to 500 Hz

Set Point Repeatability:
Typically ±1% of span

Switch Output:
One SPDT, snap-acting switch

Electrical Ratings:
20 amps @ 480 Vac resistive

Electircal Connection:
7/8" hole for optional NPT conduit connector

Weight:
1 lb

Pressure connection:
1/4"NPTF Brass, or 1/8" NPTF Brass

Mounting:
Surface mount with two screws through clearance holes, or mount by pressure connection.

Model Charts

Adjustable Deadband Version Deadband Choice A

Model
Adjustable Range
Adjustable Deadband Range
Max. Working Pressure
Proof Pressure

Low end of range on fall
High end of range on rise

psi
bar
psi
bar
psi
bar
psi
bar
psi
bar
psi
bar

A
3
0,2
30
2,1
5
0,3
11
0,8
30
2,1
600
41,4

B
20
1,4
200
13,8
20
1,9
70
4,83
200
13,8
600
41,4

C
25
1,7
475
32,8
35
2,4
140
9,7
475
32,8
600
41,4

Fixed Deadband Version - Deadband Choice F

Model
Adjustable Range
Fix Deadband Range
Max. Working Pressure
Proof Pressure

Low end of range on fall
High end of range on rise

psi
bar
psi
bar
psi
bar
psi
bar
psi
bar
psi
bar

A
3
0,2
30
2,1
5
0,3
11
0,8
30
2,1
600
41,4

B
20
1,4
200
13,8
4
0,3
10
0,7
200
13,8
600
41,4

C
25
1,7
475
32,8
10
0,7
25
1,7
475
32,8
600
41,4

How to Order

Build a part number by selecting Range Number of Switches, Pressure Connection, sensor Material and Dreadband. If options are required, add the code from the option list below.
Example: 25A1E2FM201

25
A
1
E
2
F
M201

Series
Rrange
Number of Switches
Pressure Connection
Sensor Material
Deadband
Option(s)

COMP0NENTS CODE	DESCRIPTION

Series
25
Range
A	3 to 30 psi
B	20 to 200 psi
C	25 to 475 psi
Number of Switches
1	1 SPDT
Pressure Connection
E	1/8" NPTF
F	1/4" NPTF
Sensor Material
2	Buna-N
3	Viton
4	EPDM
Deadband
F	Fixed
A	Adjustable
Options
M201	Factory set one switch, specify increasing or decreasing pressure
M230	Set adjustable deadband (must specify rise and fall setting
M444	Paper tag
M446	Stainless steel tag

United Electric Controls Products

5320 BRADCO BLVD
MISSISSAUGA ON L4W 1G7
Tel: 905 625 5082
Fax: 905 625 5709

Pressure Switch