FC/FE Temperature Switches
Product Information: Product Name: FC/FE Temperature Switches
Product Model: FC Bulletin No.: KA220407 Product Type: Flameproof
pressure switch Certifications: ATEx, IECEx & PESO approved
(for FC model), PESO approved (for FE model) IP Rating: IP66
Working Temperature: Up to 150.0°C (302°F) Cable Entry Options: 1/2
NPT(F) or 1/2 NPT(M) Range Selection Table: – Range Code T1H: 25 to
90°C (77 to 194°F), Differential: 15.0°C (59°F), Maximum Working
Temperature: 150.0°C (302°F) – Range Code T2H: 70 to 150°C (158 to
302°F), Differential: 20.0°C (68°F), Maximum Working Temperature:
200.0°C (392°F) – Range Code T3H: 120 to 215°C (248 to 419°F),
Differential: 30.0°C (86°F), Maximum Working Temperature: 300.0°C
(572°F) Note: – The differential values mentioned in the table are
approximate maximum for FSR. The actual differential value may vary
according to the pressure range selected and microswitch type. –
When using 2SPDT switching arrangement, there may be a small stage
gap of up to +/- 5% FSR. The On-Off differential (hysteresis) tends
to be at least double of those published for 1SPDT pressure
switches. – If actuation and/or deactuation at the same point is
critical, a separate DPDT relay with a separate power supply for
its coil can be used. How to Order Flameproof Temperature Switches:
To order the FC/FE Temperature Switches, follow the instructions
below: Group 1: Non-standard allocation (to be given by the
manufacturer) Group 2: Model (FC or FE) Group 3: Cable Entry Size
(3 for Al. head M20 x 1.5 threads, *6 for Grey CI head M20 x 1.5
threads, 9 for SS head M20 x 1.5 threads) Group 4: Switch Type (T1
for fixed differential without scale, T2 for fixed differential
with scale in °C) Group 5: Range Code (T1H for 25-90°C, T2H for
70-150°C, T3H for 120-215°C) Group 6: Microswitch Type (A1 for
general purpose microswitch, B1 for brass microswitch with
adjustable deadband, A8 for general purpose microswitch with
adjustable differential, C6 for 1SPDT adjustable differential)
Group 7: Temp. Bulb Material/Size (A1 for general purpose, B1 or B2
for brass, *A6 or *A7 for adjustable elements, S3 for SS316) Group
8: Capillary Material/Size (123 for SS316, 2.0 meter) Please refer
to pages 120 and 121 of the manual for options and specifications
of microswitches. Product Usage Instructions: 1. Installation: –
Refer to the installation drawing provided in the user manual. –
Ensure that the cable entry size matches the requirements of your
setup. – Follow the appropriate installation procedure based on the
cable entry type selected. 2. Temperature Range Selection: –
Determine the desired temperature range based on your application
requirements. – Refer to the Range Selection Table in the user
manual to find the corresponding Range Code. – Note the
differential value and maximum working temperature for the selected
range code. 3. Microswitch Type Selection: – Choose the appropriate
microswitch type based on your needs: – A1: General purpose
microswitch – B1 or B2: Brass microswitch with adjustable deadband
– A8: General purpose microswitch with adjustable differential –
C6: 1SPDT adjustable differential 4. Optional Configurations: – If
actuation and/or deactuation at the same point is critical,
consider using a separate DPDT relay with a separate power supply
for its coil. 5. Ordering Process: – Use the provided ordering
format to specify the required details for each group. – Contact
the sales office for additional information or any non-standard
options not covered in the user manual. Note: It is recommended to
consult the user manual for further instructions and specifications
specific to your application.
FC/FE TEMPERATURE SWITCHES FC
INSTALLATION DRAWING
145.0 5.71
126.0 4.96
Cable Entry
1/2″ NPT(F) (Options Avail.)
Ø7 (Ø 0.27), Mounting Holes, 2nos
110.0 4.33
26 1.02
252.0 9.92 155.0 6.10 Ø9.5 0.37
S.S. Capillary Tube 2.0 Mtr. Long
75Bulletin No. KA220407
1/2″ NPT(M) (Options available)
123 4.84
110
APPROX. DIMENSIONS IN
mm inches
FC/FE TEMPERATURE SWITCHES
RANGE SELECTION TABLE
Range Code T1H
Range oC ( oF)
25 to 90 (77 to 194)
Differential* oC ( oF)
Approximate Maximum for “A1″
microswitch
15.0 (59)
Maximum Working Temperature
oC ( oF) 150.0 (302)
T2H
70 to 150 (158 to 302)
20.0 (68)
200.0 (392)
T3H
120 to 215 (248 to 419)
30.0 (86)
300.0 (572)
Note:
1. The minimum differential increases with the setpoint. The differential values mentioned in the above table are approximate maximum for FSR. The differential value will vary according to the pressure range selected and microswitch type. For actual values of differential please contact sales office.
2. When using 2SPDT switching arrangement, both microswitches may not actuate and/or deactuate at the same point. A small stage gap, normally upto +/- 5% FSR (depending on range code) may be observed. The On-Off differential (hysterisis) typically tends to be atleast double of those published for 1SPDT pressure switches.
If actuation and/or deactuation at same point is critical part of operation, then it can be achieved by using a separate DPDT relay. This relay will need a separate power supply for it’s coil.
75Bulletin No. KA220407
112
HOW TO ORDER FLAMEPROOF TEMPERATURE SWITCHES
TEMPERATURE FC/FE SWITCHES
113
Group 1
Non standard allocation
Group 2 Model
Group 3 Cable Entry Size
Group 4 Switch Type
Reserved for Non-standard Options not covered in Catalogue. Will Be given by Manufacturer, Only after Agreement of Supply details With customer.
FC = IP66 Flameproof pressure switch, ATEx, IECEx & PESO approved
FE = IP66 Flameproof pressure switch, PESO approved
1 = Al. head ½” NPT threads
2 = Al. head ¾” NPT threads
3 = Al. head M20 x 1.5 threads
*4 = Grey CI head ½” NPT threads
*5 = Grey CI head ¾” NPT threads
*6 = Grey CI head M20 x 1.5 threads
7 = SS head ½” NPT threads
8 = SS head ¾” NPT threads
9 = SS head M20 x 1.5 threads
T1 = Temperature Switch, fixed differential without scale
T2 = Temperature Switch, fixed differential with scale in oC
Group 5 Range Code
(values in Deg. Cen.)
T1H = 25 – 90
T2H = 70 – 150
T3H = 120 – 215
*Not available in FE models
For adjustable differential please select microswitches A6 or C6 in group 6
Group 6
Microswitch Type
Group 7
Temp. Bulb Material / Size
Group 8
Capillary Material / Size
A1 = General
B1 = Brass /
2 =
purpose microswitch Dia. 9.5 mm, 123 SS316 /
rated at 15 A; 250 mm length, with 3/8″ 2.0 meter
VAC
BSP (M) thermowell
*A6 = elements
connection
with adjustable
B2 = Brass /
deadband
Dia. 9.5 mm, 123
*A7 = 2SPDT
mm length, with 3/8″
switching elements NPT (M) thermowell
A8 = General purpose connection
microswitch rated at 5 B3 = Brass /
A, 250 VAC; 5 A, 28 Dia. 9.5 mm, 123
VDC
mm length, with 1/2″
*B7 = 2SPDT
NPT (M) thermowell
Switching Elements connection
C6 = 1SPDT Adjustable Differential
S1 = SS316 / ¼” BSP(F)
S2 = SS316 / ¼” NPT(F)
Please refer to page nos. 120 & 121 for options and specifications of microswitches * Please contact sales office for additional information
S3 = SS316 / 1″ BSP(M)
Please contact sales office for additional information
E.g. A Flameproof Temperature switch, with 1/2″NPT cable entry in aluminum housing as 1 SPDT, fixed differential without scale, having 25°C to 90°C temperature range, with 15 Amp. microswitch, with Brass 9.5 mm diameter bulb, having length 123 mm with 3/8″BSP(M),with 2.0 meter SS316 capillary length shall be specified by
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 8
FC
1
T1
T1H
A1
B1
2
Please specify full model number to avoid ambiguity.
57 Bulletin No. KA220407
