Festo SRBC Technical Data
Sensor boxes SRBC
q/w Festo core product range
Covers 80% of your automation tasks
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Held in stock in 13 service centres worldwide
More than 2200 products
wReady for dispatch in 5 days maximum from stock
Assembled for you in 4 service centres worldwide
Up to 6 x 1012 variants per product series
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Sensor boxes SRBC
Key features and product range overview
Function
Sensor boxes SRBC are used for electrical feedback and control of the position
of process valves actuated using pneumatic quarter turn actuators. They can be
mounted quickly and easily on quarter turn actuators with a hole pattern to
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
Weather-tight housing for outdoor
applications too
Mechanical, inductive or magnetic
switch variants for virtually all
ranges of application
Intrinsically safe variants for use in
potentially explosive areas
Two cable inputs for common power
supply for the sensor box and
solenoid valve as standard
VDI/VDE 3845 using mounting adapters. The sturdy design of the sensor box
SRBC is ideal for the harsh conditions in process automation.
Sturdy aluminium housing with two
cable inputs M20x1.5
Captive stainless steel screws on
the housing cover
Pre-assembled stainless steel
mounting adapter 80x30 H20 for
ease of mounting on standard
drives as per VDI/VDE 3845
Cable connector and blanking plug
included in the scope of delivery
3D OPEN/CLOSED position indic
ator
Mechanical, inductive or magnetic
switch variants
Number of switches: 2
IP67, NEMA 4/4x
cCSAus Listed, General Purpose
ATEX ia version
SIL 2 to IEC 61508
Product range overview
Measuring principle Type Operating voltage range Switching output Switching element function
Electromechanical SRBC-…-MW-22A-1W- 0…250 V AC
0…30 V DC
Magnetic reed SRBC-…-R-2A-1W- 0…120 V AC
0…175 V DC
Inductive SRBC-…-N-20N-ZC- 8.2 V DC NAMUR N/C contact
Inductive SRBC-…-N-20N-ZC-…-EX4 8.2 V DC NAMUR N/C contact
Inductive SRBC-…-N-1-P- 10…30 V DC PNP N/O contact
Inductive SRBC-…-N-1-N- 10…30 V DC NPN N/O contact
Inductive SRBC-…-N-1-ZU- 5…60 V DC Contactless, 2-wire N/O contact
Contacting Toggle switch,
single-pole (SPDT)
Contacting Toggle switch,
single-pole (SPDT)
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Subject to change – 2017/02
Sensor boxes SRBC
Peripherals overview
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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
4 Cable connector
NETC-P-M20-P4
5 Cable connector
NETC-M-M20-P4
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
Polymer cable connector M20x1.5
Included in the scope of delivery of the sensor box
Metal cable connector M20x1.5
Can be ordered separately as an accessory
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2017/02 – Subject to change
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Sensor boxes SRBC
Type codes SRBC
Type
SRBC 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°
SRBC — C — A3 — YR — 90 — N — 1 — N — C2 — P20 —
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
ZC 2-wire N/C contact
ZU 2-wire N/O contact
Electrical connection
C2 Screw terminal
Cable connector
P20 M20x1.5, polymer
EU certification
– None
EX4 II2GD
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Subject to change – 2017/02
Mounting kits DARQ
Type codes DARQ
Type
DARQ Mounting adapter
Function
K Mounting kit
Designation
X1 Sensor box version with short shaft
Drive outlet
A1 Hole pattern 30 x 80 mm
A2 Hole pattern 30 x 130 mm
Adapter or reducing outlet
F05 Hole pattern F05
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DARQ — K — X1 — A1 — F05 — 20 — R1
Length
20 20 mm
30 30 mm
Corrosion protection
R1 Stainless steel
2017/02 – Subject to change
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