SRB202CS/T 24VDC
Item number:101176210
Product features
- Level 1: Reset with edge detection, Level 2 Opener (NC) / Opener (NC)
- Two-functions safety monitoring module (double evaluation)
- 2 enabling paths with different shut-down behaviour, e.g. emergency exit opens both enabling paths (level 1); guard door monitoring only opens the second enabling path (level 2)
- Suitable for signal processing of potential-free contacts, e.g. Emergency Stop command devices (level 1), position switches with safety function, solenoid interlocks and safety sensors (level 2)
- 2 Signalling outputs
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Ordering data
Replacement article number101177155
Product type descriptionSRB202CS/T 24VDC
Article number (order number)101176210
EAN (European Article Number)4250116201907
eCl@ss number, version 12.027-37-18-19
eCl@ss number, version 11.027-37-18-19
eCl@ss number, version 9.027-37-18-19
ETIM number, version 7.0EC001449
ETIM number, version 6.0EC001449
NoticeDiscontinued product
Approvals - Standards
CertificatescULus
General data
StandardsEN IEC 60204-1EN IEC 60947-1EN IEC 60947-5-1EN IEC 60947-5-3EN IEC 60947-5-5EN IEC 61508EN IEC 62061EN ISO 13849-1
Climatic stressEN 60068-2-78
Housing materialGlass-fibre reinforced thermoplastic, ventilated
Gross weight235g
General data - Features
Electronic FuseYes
Wire breakage detection Yes
Removable TerminalsYes
Start inputYes
Feedback circuit
Yes
Automatic reset functionYes
Reset edge detectionYes
Earth connection detectionYes
Integral system diagnostics, statusYes
Number of auxiliary contacts2
Number of inputs for NC2
Number of inputs for NO2
Number of LEDs6
Number of safety contacts2
Safety classification
StandardsEN IEC 60947-5-1EN IEC 61508
Stop-Category0
Safety classification - Relay outputs
Performance Level, stop 0, up toe
Category, Stop 04
Diagnostic Coverage (DC) Level, Stop 0≥ 99%
PFH value, Stop 02.00 x 10⁻⁸/h
Safety Integrity Level (SIL), Stop 0, suitable for applications in3
Mission time20Year(s)
Common Cause Failure (CCF), minimum65
Mechanical data
Mechanical lifetime, minimum10,000,000Operations
MountingSnaps onto standard DIN rail to EN 60715
Mechanical data - Connection technique
Terminal designationsIEC/EN 60947-1
Cable section, minimum0.25 mm²
Cable section, maximum2.5 mm²
Tightening torque of Clips0.6Nm
Allowed type of cableflexiblesolid single-wire
Terminal (mechanical)Screw terminals
Mechanical data - Dimensions
Width22.5mm
Height100mm
Depth121mm
Ambient conditions
IP Degree of protection of the enclosureIP40
IP Degree of protection of the installation spaceIP54
IP Degree of protection of clips or terminalsIP20
Ambient temperature-25 ... +45 °C
Storage and transport temperature-40 ... +85 °C
Resistance to vibrations10 ... 55 Hz, Amplitude 0.35 mm
Restistance to shock10 g / 11 ms
Ambient conditions - Insulation values
Rated impulse withstand voltage Uimp4kV
Overvoltage categoryIII
Degree of pollution2
Electrical data
Operating voltage24 VDC -10 % / +20 %
Ripple voltage10%
Rated operating voltage24VDC
Rated AC voltage for controls at DC minimum20.4VDC
Rated control voltage at DC, maximum28.8VDC
Electrical power consumption4.4W
Contact resistance, maximum0.1Ω
Note (Contact resistance)in new state
Drop-out delay in case of power failure, typically80ms
Drop-out delay in case of emergency, typically20ms
Pull-in delay at automatic start, maximum, typically100ms
ON delay at automatic startAdjustable
Pull-in delay at RESET, typically20ms
Material of the contacts, electricalAg-Ni, self-cleaning, positive drive
Electrical data - Safe relay outputs
Voltage, Utilisation category AC-15250VAC
Current, Utilisation category AC-156A
Voltage, Utilisation category DC-1324VDC
Current, Utilisation category DC-136A
Switching capacity, minimum10VDC
Switching capacity, minimum10mA
Switching capacity, maximum250VAC
Switching capacity, maximum8A
Electrical data - Digital inputs
Conduction resistance, maximum40Ω
Electrical data - Relay outputs (auxiliary contacts)
Switching capacity, maximum24VDC
Switching capacity, maximum2A
Electrical data - Electromagnetic compatibility (EMC)
EMC ratingEMC-Directive
Status indication
Indicated operating statesInternal operating voltage UiPosition relay K1Position relay K2Position relay K3
Other data
Note (applications)Emergency-Stop buttonGuard systemPull-wire emergency stop switchesSafety sensor
Note
Note (General)Inductive loads (e.g. contactors, relays, etc.) are to be suppressed by means of a suitable circuit.
Note (Cross-circuit detection)Level 1
Wiring example
Note (Wiring diagram)1 NC contact each time communicates the status of level 1 and level 2Automatic start (level 1): The automatic start is programmed by connecting the feedback circuit to the terminals X1/+24 V DC. Automatic start (level 2): The automatic start is programmed by connecting the feedback circuit to the terminals X2/+24 V DC. If Input level: the example shows a 2-channel control of an Emergency Stop command device (level 1) with external reset button (R), and guard door monitoring (level 2) with feedback circuit (H2).Relay outputs: Suitable for 2 channel control, for increase in capacity or number of contacts by means of contactors or relays with positive-guided contacts.The control recognises cross-short, cable break and earth leakages in the monitoring circuit.The wiring diagram is shown with guard doors closed and in de-energised condition.
The details and data referred to have been carefully checked. Images may diverge from original. Further technical data can be found in the manual. Technical amendments and errors possible.
Generated on: 08/05/2026, 13:15
