39PS中文资料
W O R L D L E A D E R I N S E N S I N G S O L U T I O N S
25PS, 42PS, 44PS, 45PS and 46PS
Series Pressure Switches
This line of pressure switches is designed for direct control of
motors and other demanding loads requiring precise pressure settings.Extended electrical capacities and life cycles, in both environmentally sealed and unsealed configurations,encourage usage in the most rigor-ous fan cycling and high/low pressure protection applications.
Applications
Product Bulletin
Operation
The snap-acting stainless steel diaphragm reverses its curvature when pressurized to a customer specified value. When the disc snaps, it opens or closes a set of electrical contacts by means of a transfer pin. Resetting the switch occurs automatically when pressure drops below a preset value.
Product Selection Matrix
44PS - Wire Leads 44PS - 1/4” Quick Connects 100,000
250,000
Switch Life Cycles
Application Voltage
Environmental Package
Model Number – Termination
Sealed Unsealed The 25PS series is an automatic reset pressure switch designed to meet a broad variety of application requirements. This series is avail-
Sealed Unsealed Sealed
Unsealed Sealed Unsealed 44PS - Wire Leads
42PS - Wire Leads or 1/4” Quick Connects 45PS - Wire Leads
45PS - 1/4” Quick Connects 45PS - Wire Leads
25PS - Wire Leads or 1/4” Quick Connects 480 - 600 Vac
28 Vdc - 240 Vac
able in SPST and SPDT, offers a variety of pressure settings, port fittings and electrical connections.
480 - 600 Vac
28 Vdc - 240 Vac
for 2.5 million cycles.? In applica-tions such as split room air condi-tioning systems, the 46PS as a head pressure control can result in signifi-cant cost savings when used instead of a pilot duty switch and relay.
2,500,000?
480 Vac
120 Vac - 240 Vac
Sealed Unsealed Sealed Unsealed
46PS - Wire Leads
46PS - Wire Leads or 1/4” Quick Connects 46PS - Wire Leads
46PS - Wire Leads or 1/4” Quick Connects
The 46PS pressure switch is capable of breaking 2 amp loads at 480 Vac
?Qualified by application current. Requires TI/customer specification closure and validation testing before application approval.
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Electrical Ratings
Design Specifications – 25PS, 42PS, 44PS, 45PS, 46PS
Vacuum to 750 psig
5000 psig
100,000 Cycles (25/45PS)
250,000 Cycles (42/44PS)2,500,000 Cycles (46PS)?
750 Vrms across open contacts
1554 Vrms terminals to fitting (25/42PS)2200 Vrms terminals to fitting (44/45/46PS)-20o F to 150o F / -28.9o C to 65.6o C (Leaded)
-40o F to 275o F / -40o Cto135o C (QuickConnect)-65o F to 275o F / -53.9o C to 135o C UL Recognized File No. SA995
U.S.Guide No. SDFY2 / Canada No. SDFY8PED CE0035 Module B/D ENEC Certified IP67 (Leaded)
Operating Pressure:Burst Pressure:Life at rated Current:Dielectric Strength:Ambient Temperature:Fluid Temperature:Agency Approvals:Differential Range ?
50 - 7045 - 6050 - 7060 - 7560 - 7565 - 8070 - 80
Minimum
Tolerance Contact TI
5710101015
Upper Setpoint***
10” Hg Min - 18 psig
15-50 psig 51-120 psig 121-250 psig 251-350 psig 351-500 psig 501-750 psig
Standard
Pressure Ranges
*SPST - single pole, single throw.
SPDT - single pole, double throw **Switch logic at atmospheric pressure
***Maximum UL recognized pressure rating is 750 psig:non-UL ratings to 1000 psig.? 25 amp rating for 25PS and 45PS only. For 42PS and 44PS, NC ratings same as NO ratings. Note 18 AWG.?? Qualified by application current.
Validation testing required. ?Differential = (Lower Setpoint / Upper Setpoint) x 100
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Standard Fittings, others are available
?Normally open contact on double throw switch is rated 5.8/2.9 Amps. Contact Marketing for additional product information.
Complete Product Directory of Texas Instruments Hermetic Pressure Switches
Narrow differential, tight tolerance
Dry circuit capability, extended life cycle Dry circuit capability, extended life cycle Narrow differential, tight tolerance Extended life cycle High current loads High current loads
Extended life cycles at high current
Extended life cycles, sealed configuration High current in sealed configuration High current loads Trip free manual reset
Narrow differential, tight tolerance Small, lightweight
High current loads Extended life cycles
Extended life cycles, sealed configuration High current in sealed configuration Extended cycle life?
Extended cycle life at high voltage High voltage capability Extended cycle life?
36PS 39PS 41PS 25PS 42PS 44PS 45PS
20PS 29PS 36PS PS8025PS 42PS 44PS 45PS 46PS 44PS 45PS 46PS
Auto Reset Auto Reset Auto reset Auto Reset Auto Reset Auto Reset Auto Reset Auto Reset Auto Reset Auto Reset
Auto Reset Manual Reset Auto Reset Auto Reset Auto Reset Auto Reset Auto Reset Auto Reset Auto Reset Auto Reset Auto Reset Auto Reset
SPST SPST SPST SPST SPST SPST SPST, SPDT SPST, SPDT SPST, SPDT SPST, SPDT SPST SPST SPST SPST SPST, SPDT?SPST, SPDT SPST, SPDT?SPST, SPDT?SPST, SPDT?
SPST SPST SPST
5-28 Vdc 5-28 Vdc 5-28 Vdc 5-28 Vdc 5-28 Vdc 5-28 Vdc 28 Vdc 28 Vdc 28 Vdc 28 Vdc 120/240 Vac 120/240 Vac 120/240 Vac 240 Vac 120/240 Vac 120/240 Vac 120/240 Vac 120/240 Vac 120/240 Vac 480/600 Vac 480/600 Vac 480 Vac
5-400 mA 5-400 mA 5-400 mA 400 mA-2 A 400 mA-2 A 400 mA-2 A
15 A 15 A 15 A 15 A 5.8/2.9 A 6.0/2.9 A 5.8/2.9 A 6.0 A 13/10 A 13/10 A 13/10 A 13/10 A 13/10 A 4.0/3.2 A 4.0/3.2 A 2 A
1,000>250>100250250250100250250100100101001001002502501001,000+2501001,000+
Model
Switch Operation
Switch Configuration
Application Voltage
Electrical Current
Switch Life Cycles
(K)
Features
DC Voltage (<28V), Low Current
DC Voltage (<28V), High Current
AC Voltage (<240V), Low Current
AC Voltage (<240V), High Current
High AV Voltage (<600V), High Current
36PS 40PS 20PS
Sample Request Data Form (Please complete as much as possible)
Printed in U.S.A. 12-2002
MCFS007