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HEAVY-DUTY INDUSTRIAL SWITCHES
Internal Set Point Adjustment
PSW-721-726, 731-735
External Set Point Adjustment
PSW-701-717
Dimensions
PSW-702-704, 708, 709
PSW-731-735
Dimension A
Dimension A
Models Inches mm NPT
Pressure
PSW-701, 711-714 8.50 215.9 1/4
PSW-702-704 &
PSW-708-709 8.84 244.5 1/2
PSW-710 8.75 222.3 1/4
PSW-705-707 7.81 198.4 1/4
PSW-715-717 8.31 211.1 1/4
1/2 NPT
1/2 NPT
1/2 NPT
External Set Point Adjustment
PSW-701-717
PSW-731-735
Dimension A
Models Inches mm NPT
Pressure
PSW-701, 711-714 8.50 215.9 1/4
PSW-702-704 &
PSW-708-709 8.84 244.5 1/2
PSW-710 8.75 222.3 1/4
PSW-705-707 7.81 198.4 1/4
PSW-715-717 8.31 211.1 1/4
1/2 NPT
1/2 NPT
External Set Point Adjustment
PSW-701-717
PSW-702-704, 708, 709
PSW-731-735
Dimension A
Models Inches mm NPT
Pressure
PSW-701, 711-714 8.50 215.9 1/4
PSW-702-704 &
PSW-708-709 8.84 244.5 1/2
PSW-710 8.75 222.3 1/4
PSW-705-707 7.81 198.4 1/4
PSW-715-717 8.31 211.1 1/4
PSW-710, 715-717
1/4 NPT
1/2 NPT
1/2 NPT
1/2 NPT
1/4 NPT (F)
Dimension A
External Set Point Adjustment
PSW-701-717
Dimension A
Models Inches mm NPT
Pressure
PSW-701, 711-714 8.50 215.9 1/4
PSW-702-704 &
PSW-708-709 8.84 244.5 1/2
PSW-710 8.75 222.3 1/4
PSW-705-707 7.81 198.4 1/4
PSW-715-717 8.31 211.1 1/4
1/2 NPT
External Set Point Adjustment
PSW-701-717
PSW-731-735
Dimension A
Models Inches mm NPT
Pressure
PSW-701, 711-714 8.50 215.9 1/4
PSW-702-704 &
PSW-708-709 8.84 244.5 1/2
PSW-710 8.75 222.3 1/4
PSW-705-707 7.81 198.4 1/4
PSW-715-717 8.31 211.1 1/4
1/2 NPT
1/2 NPT
SINGLE OR DUAL SETPOINT,
INTERNAL OR EXTERNAL ADJUSTMENT
30 inHg Vacuum to 3000 psi
PSW-700 Series
U Division 1 Rating
U Single or Dual Setpoints,
Tamper Resistant
U Heavy-Duty Enclosure
U Rated NEMA 4X, 7, 9
(IP66)
U Terminal Block Wiring
U High-Temperature
Operation to 200°C (392°F)
Process Temperature
(Stainless Steel
Model Only)
PSW-700 Series pressure switches
are built for the rugged industrial
setting. The internal setpoints allow
adjustments while keeping the
electrical component isolated from
the environment. Both the internal
and external setpoints have a range
scale, allowing fast, easy setup.
SPECIFICATIONS
Approvals: UL listed; Class I, Division
1 and 2, Groups B, C and D; Class II,
Groups E, F and G; Class III
Repeatability: ±1% range
Process Temperature:
Stainless Steel: -57 to 204°C
(-70 to 400°F)
Brass: -40 to 149°C (-40 to 300°F)
Buna-N: -23 to 93°C (-10 to 200°F)
Ambient Temperature:
-50 to 71°C (-58 to 160°F), except for
models 703 to 705, which are -18 to 71°C
(0 to 160°F). Setpoint typically shifts
less than 1% of range for a 28°C (50°F)
ambient temperature change.
Shock: Setpoint repeats after 15 g,
10 ms duration
Vibration: Setpoint repeats after
2.5 g at 5 to 500 Hz
Output: 1 SPDT or 2 SPDT
15 A 125/250/480 Vac
See switch
accessories online
for audible alarms
and relay modules.
1/4 NPT
PSW-701, 711-714
1/2 NPT
PSW-702-704, 708, 709
1/2 NPT
PSW-731-735
Enclosure: Low copper-cast
epoxy-coated aluminum
Electrical Connection:
conduit; internal screw terminals
Dimensions:
psi Ranges:
230 (max)
H x 125 W x 108 mm D
(9 x 4.9 x 4.3")
H
O Ranges:
2
W and D = 153 mm (6")
Weight: Approx. 1.7 kg (4 lb)
PSW-722, ±10 inH2O
range, shown much
smaller than actual size.
1/4 NPT
PSW-710, 715-717
H-33
3
⁄4 NPT
Dual external
setpoint
calibration
adjustment
1/2 NPT
PSW-721-72
Page 2
PSW-707, 0 to 500 psi
range, shown smaller
INDUSTRIAL SWITCHES
than actual size
To Order
RANGE
MODEL NO.
STANDARD METRIC
SINGLE SETPOINT, FIXED DEADBAND, WELDED 316L SS DIAPHRAGM,
PSW-721
PSW-722
PSW-723
PSW-724
PSW-725
PSW-726
PSW-731
PSW-732
PSW-733
PSW-734
PSW-735
DUAL SETPOINT, EXTERNAL CALIBRATED ADJUSTMENT, SEALED BRASS BELLOWS,
1
⁄
FNPT NICKEL-PLATED BRASS PRESSURE CONNECTION
4
PSW-701
PSW-711
PSW-712
PSW-713
PSW-714
DUAL SETPOINT, EXTERNAL CALIBRATED ADJUSTMENT, WELDED 316 SS BELLOWS,
1
⁄
FNPT PRESSURE CONNECTION
2
PSW-702
PSW-703
PSW-704
PSW-708
PSW-709
DUAL SETPOINT, EXTERNAL CALIBRATED ADJUSTMENT, WELDED 316 SS BELLOWS,
1
⁄
FNPT PRESSURE CONNECTION
4
PSW-705
PSW-706
PSW-707
DUAL SETPOINT, EXTERNAL CALIBRATED ADJUSTMENT, FIXED DEADBAND, BUNA-N O-RING, SS PISTON,
1
⁄
FNPT 303 SS PRESSURE CONNECTION
4
PSW-710
DUAL SETPOINT, EXTERNAL CALIBRATED ADJUSTMENT, FIXED DEADBAND, BUNA-N DIAPHRAGM AND O-RING,
1
⁄
FNPT NICKEL-PLATED PRESSURE CONNECTION
4
PSW-715
PSW-716
PSW-717
Comes complete with operator’s manual.
Ordering Example: PSW-703-X6B, dual-setpoint 30 psi switch with welded SS diaphragm, specially cleaned for oxygen service.
-300 to 0 inH
-10 to 10 inH
-50 to 50 inH
0.5 to 5 inH
2.5 to 50 inH
10 to 250 inH
O -747 to 0 mbar 0.2 to 15 inH2O 100 psi 15 A SPDT Blind adj
2
O -25 to 25 mbar 0.1 to 0.6 inH2O 100 psi 15 A SPDT Blind adj
2
O -125 to 125 mbar 0.1 to 3 inH2O 100 psi 15 A SPDT Blind adj
2
O 1.25 to 12.5 mbar 0.1 to 0.3 inH2O 100 psi 15 A SPDT Blind adj
2
O 6 to 125 mbar 0.1 to 0.8 inH2O 100 psi 15 A SPDT Blind adj
2
O 25 to 622 mbar 0.1 to 10 inH2O 100 psi 15 A SPDT Blind adj
2
5 to 30 psi 0.3 to 2.1 bar 1 to 6 psi 2500 psi 15 A SPDT Blind adj
10 to 100 psi 0.7 to 7 bar 1 to 15 psi 2500 psi 15 A SPDT Blind adj
15 to 300 psi 1 to 21 bar 3 to 25 psi 2500 psi 15 A SPDT Blind adj
20 to 500 psi 1.4 to 34.5 bar 4 to 45 psi 2500 psi 15 A SPDT Blind adj
80 to 1700 psi 5.5 to 117 bar 5 to 150 psi 2500 psi 15 A SPDT Blind adj
30 inHg vac to 0 psi
30 inHg vac to 20 psi
1.02 to 0 bar 0.2 to 0.9 inHg 30 inHg (2)15 A SPDT 0.5 inHg
-1 to 1.4 bar 0.2 to 1.2 inHg 25 psi (2)15 A SPDT
0 to 30 psi 0 to 2 bar 0.1 to 0.6 psi 40 psi (2)15 A SPDT 0.5 psi
0 to 100 psi 0 to 6.9 bar 0.2 to 0.8 psi 125 psi (2)15 A SPDT 2 psi
0 to 200 psi 0 to 13.8 bar 0.3 to 2 psi 200 psi (2)15 A SPDT 5 psi
0 to 20 psi 0 to 1.4 bar 0.1 to 0.5 25 psi (2)15 A SPDT 0.5 inHg
0 to 30 psi 0 to 2 bar 0.1 to 0.6 40 psi (2)15 A SPDT 0.5 psi
0 to 100 psi 0 to 6.9 bar 0.2 to 0.8 125 psi (2)15 A SPDT 2 psi
30 inHg vac to 20 psi
-1 to 1.4 bar 0.2 to 1.2 inHg 25 psi (2)15 A SPDT
0 to 200 psi 0 to 13.8 bar 0.3 to 2 psi 200 psi (2)15 A SPDT 5 psi
0 to 200 psi 0 to 13.8 bar 1.5 to 8 250 psi (2)15 A SPDT 5 psi
0 to 300 psi 0 to 20.7 bar 2 to 9 350 psi (2)15 A SPDT 10 psi
0 to 500 psi 0 to 34.5 bar 3 to 12 575 psi (2)15 A SPDT 10 psi
125 to 3000 psi 8.6 to 207 bar 40 to 250 psi 10,000 psi (2)15 A SPDT 50 psi
30 to 300 psi 2 to 21 bar 2 to 7 psi 1000 psi (2)15 A SPDT 10 psi
50 to 500 psi 3.5 to 34.5 bar 3 to 12 psi 2500 psi (2)15 A SPDT 10 psi
200 to 1000 psi 13.8 to 69 bar 5 to 25 psi 2500 psi (2)15 A SPDT 25 psi
DEADBAND
STANDARD UNITS
PROOF
PRESSURE SWITCH
1
⁄
FNPT PRESSURE CONNECTION
2
DIAL
GRADUATION
1 inHg & 0.5 psi
1 inHg & 0.5 psi
PRESSURE SWITCHES
H
H-34
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