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Ashcroft 400 Temperature Switches, Watertight Enclosure

Temperature Switches, Watertight Enclosure

This broad Ashcroft® switch series is easy to use and readily retrofits to virtually all process, industrial and OEM applications.

• Watertight NEMA 4X, IP66 enclosure
• Choice of switch elements for all applications, including hermetically sealed (NEMA 4 meets Class I, Div. 2, Groups A, B, C, & D with hermetically sealed switch)
• UL, CSA listings standard
• Setpoints adjustable from 15-100% of range
• Wetted material is all-welded stainless steel
• Fixed or limited adjustable deadband
• Readily available

Select a link under the "item" tab below to order.

Table 1Table 2Table 3Table 4Table 5
Table 1Enclosure
D4Differential pressure switch, type 400, watertight enclosure meets NEMA 3, 4, 4X and 13, IP66 requirements
B4Pressure switch, type 400, watertight enclosure meets NEMA 3, 4, 4X and 13, IP66 requirements
Table 2Switch Element
29Manual reset trip on decreasing
UL/CSA Listed Dual SPDT(2)
65Dual ammonia service
UL/CSA Listed Dual SPDT(2)
64Dual general purpose
UL/CSA Listed Dual SPDT(2)
63Dual high temp. 300°F
UL/CSA Listed Dual SPDT(2)
62Dual narrow environment proof
UL/CSA Listed Dual SPDT(2)
61Dual narrow deadband
50Variable deadband
32Hermetically sealed switch, general purpose
31Low level (gold) contacts
28Manual reset trip on increasing
27High temp. 300°F
26Sealed environment proof
25Heavy duty dc
24**General purpose
23Heavy duty ac
22Hermetically sealed switch, narrow deadband
21*Ammonia service
20Narrow deadband
Table 2Actuator Seal
CodeMaterial Range
VViton yes yes
BBuna N yes yes
TTeflon yes yes
Table 3Options
XPKPilot light(s), top mounted
Table 4Pressure Range
3000#3000 psi
1000#1000 psi*
600#600 psi
400#400 psi
200#200 psi
100#100 psi
60#60 psi
30#30 psi
15#15 psi
150 in.H₂O150 in.H₂O psi
100 in.H₂O100 in.H₂O psi
60 in.H₂O60 in.H₂O psi
30 in.H₂O30 in.H₂O psi
10 in.H₂O10 in.H₂O psi

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