45-610 Displacer Type Liquid Level Switches and Proof-er
®
Switches
13
4.3
Specifications
4.3.1 Basic Electrical ratings
4.3.2 Pressure/Temperature ratings
Threaded Models
➃➄
800 psig @ +100 °F (55 bar @ +38 °C)
250 psig @ +400 °F (17 bar @ +204 °C)
Flanged Models
➄
Limited to the pressure rating of the selected flange or displacer. Cast iron flanges are flat face type conforming to
ANSI dimensional specifications
Low Pressure
25 psig @ +200 °F (1.7 bar @ +93 °C)
Proof-er Models
Medium Pressure
125 psig @ +300 °F (8.6 bar @ +149 °C)
Proof-er Models
➃
Models with stainless steel displacers are rated 720 psig @ +100 °F (50 bar @ +38 °C)
➄
Cryogenic construction available upon request. Consult factory with application details.
➀
With housing drain, CSA drops Group E and FM drops Group C.
➁
Models B10 and B15 with “HS” switches and all Model C10 and C15 are not ATEX approved.
➂
IEC Installation Instructions:
The cable entry and closing devices shall be Ex d certified suitable for the conditions of use
and correctly installed.
For ambient temperatures above +55 °C or for process temperatures above +150 °C, suitable
heat resistant cables shall be used.
Heat extensions (between process connection and housing) shall never be insulated.
Special conditions for safe use:
When the equipment is installed in process temperatures higher than +85 °C the temperature
classification must be reduced according to the following table as per IEC60079-0.
Maximum Process
Temperature
Temperature
Classification
< 85 °C
T6
< 100 °C
T5
< 135 °C
T4
< 200 °C
T3
< 300 °C
T2
< 450 °C
T1
These units are in conformity with IECEx KEM 05.0020X
Classification Ex d
II
C T6
Tambient -40° to +70 °C
Displacer
Switch Series and Non-Inductive Ampere rating
B
C
D
F
HS
O
Q
120 VAC
15.00
15.00
10.00
2.50
5.00
15.00
15.00
240 VAC
15.00
15.00
—
—
5.00
15.00
15.00
24 VDC
6.00
6.00
10.00
4.00
5.00
6.00
6.00
120 VDC
0.50
1.00
10.00
0.30
0.50
1.00
0.50
240 VDC
0.25
0.50
3.00
—
0.25
0.50
0.25
