Festo SRBE Technical Data
Sensor boxes SRBE
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Sensor boxes SRBE
Key features and product range overview
Function
Sensor boxes SRBE are used for electrical feedback and control of the position of
process valves actuated using pneumatic quarter turn actuators. They are suit
able for use in potentially explosive environments. They can be mounted quickly
Innovative Flexible Design
Pre-assembled mounting adapter
for ease of installation
The trip cams can be set easily
without additional tools
Sturdy, corrosion-resistant design,
ideal for use in harsh operating
conditions
Clearly visible 3D position indicator
allows rapid detection of the
current position of the quarter turn
actuator
Worldwide certifications (ATEX,
IECEX, cCSAus, INMETRO) for use in
potentially explosive environments
The type of protection of the
flameproof enclosure enables
installation without safety barriers
or NAMUR amplifier in potentially
explosive environments
Weather-tight housing for outdoor
applications too
Mechanical, inductive or magnetic
switch variants for virtually all
ranges of application
Two cable inputs for common power
supply for the sensor box and
solenoid valve as standard
and easily on quarter turn actuators with a connection pattern to VDI/VDE 3845
using mounting adapters.
Sturdy aluminium housing with two
cable inputs
Captive stainless steel screws on
the housing cover
Pre-assembled stainless steel
mounting adapter 80x30 H20 for
ease of mounting on standard
actuators to VDI/VDE 3845
3D OPEN/CLOSED position indic
ator
Mechanical, inductive or magnetic
switch variants
Number of switches: 2
IP67, NEMA 4/4x
ATEX, IECEX, cCSAus, INMETRO
SIL 2 to IEC 61508
2
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Subject to change – 2016/03
Sensor boxes SRBE
Key features and product range overview
Product range overview
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Measuring principle Type EX certifications Operating voltage
range
Electromechanical
Electromechanical
Magnetic reed
Inductive
Inductive
Inductive
Inductive
SRBE-…-MW-22A-1W-…-EX ATEX, IECEX, INMETRO 0 … 250 V AC
SRBE-…-MW-22A-1W-…-C1 cCSAus
SRBE-…-MW-22A-2W-…-EX ATEX, IECEX, INMETRO 0 … 250 V AC
SRBE-…-MW-22A-2W-…-C1 cCSAus
SRBE-…-R-2A-1W-…-EX ATEX, IECEX, INMETRO 0 … 240 V AC
SRBE-…-R-2A-1W-…-C1 cCSAus
SRBE-…-N-20N-ZC-…-EX ATEX, IECEX, INMETRO
SRBE-…-N-20N-ZC-…-C1 cCSAus
SRBE-…-N-1-P-…-EX ATEX, IECEX, INMETRO
SRBE-…-N-1-P-…-C1 cCSAus
SRBE-…-N-1-N-…-EX ATEX, IECEX, INMETRO
SRBE-…-N-1-N-…-C1 cCSAus
SRBE-…-N-1-ZU-…-EX ATEX, IECEX, INMETRO
SRBE-…-N-1-ZU-…-C1 cCSAus
0 … 30 V DC
0 … 30 V DC
0 … 30 V DC
8.2 V DC NAMUR N/C contact
10 … 30 V DC PNP N/O contact
10 … 30 V DC NPN N/O contact
5 … 60 V DC Contactless, 2-wire N/O contact
Switching output Switching element
function
Contacting
Contacting
Contacting
Toggle switch,
single-pole (SPDT)
Toggle switch,
double-pole (DPDT)
Toggle switch,
single-pole (SPDT)
2016/03 – Subject to change
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Sensor boxes SRBE
Peripherals overview
3
2
1
Accessories Brief description è Page/Internet
1 Mounting adapter
DARQ-K-X1-A1-F05-20-R1
2 Mounting adapter
DARQ-K-X1-A1-F05-30-R1
3 Mounting adapter
DARQ-K-X1-A2-F05-30-R1
Mounting adapter for mounting sensor boxes on quarter turn actuators with hole pattern
30 x 80 mm, shaft height 20 mm
Included in the scope of delivery of the sensor box and pre-assembled
Mounting adapter for mounting sensor boxes on quarter turn actuators with hole pattern
30 x 80 mm, shaft height 30 mm
Can be ordered separately as an accessory
Mounting adapter for mounting sensor boxes on quarter turn actuators with hole pattern
30 x 130 mm, shaft height 30 mm
Can be ordered separately as an accessory
17
17
17
4
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Subject to change – 2016/03
Sensor boxes SRBE
Type codes SRBE
Type
SRBE Limit switch attachment
Design
C Sensor box
Mechanical interface
A3 Mounting adapter, hole pattern
30 x 80 mm,
shaft height 20 mm
Display type
YR Position indicator yellow/red
Measuring range
90 0 … 90°
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SRBE — C — A3 — YR — 90 — N — 1 — N — C2 — N12 — EX
Sensor principle
N Proximity sensors, inductive
R Reed with contact
MW Floating contact, changeover switch
Nominal operating voltage
2A 110 V AC, 50-60 Hz
20N 8.2 V DC, NAMUR
22A 250 V AC
1 24 V DC
Electrical output
N NPN
P PNP
1W 1-pin toggle switch
2W 2-pin toggle switch
ZC 2-wire N/C contact
ZU 2-wire N/O contact
Electrical connection
C2 Screw terminal
Connecting thread
M20 M20
N12 ½ NPT
EU certification
C1 CSA mark (Canada)
EX EX certification (ATEX)
2016/03 – Subject to change
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Mounting kits DARQ
Type codes DARQ
Type
DARQ Mounting adapter
Function
K Mounting kit
Designation
X1 Sensor box version with short shaft
Actuator outlet
A1 Hole pattern 30 x 80 mm
A2 Hole pattern 30 x 130 mm
Adapter or reducing outlet
F05 Hole pattern F05
DARQ — K — X1 — A1 — F05 — 20 — R1
Length
20 20 mm
30 30 mm
Corrosion protection
R1 Stainless steel
6
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Subject to change – 2016/03
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