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Schmersal-SRB301LCI 24VAC/DC-101176968
SRB301LCI 24VAC/DC

3 safety contacts, STOP 01 Signalling outputSuitable for the signal processing of outputs with contact sensors

  • 3 safety contacts, STOP 0
  • 1 Signalling output
  • Suitable for the signal processing of outputs with contact sensors

Ordering data

Product type description

SRB301LCI 24VAC/DC

Article number (order number)

101176968

EAN (European Article Number)

4250116202027

eCl@ss number, version 12.0

27-37-18-19

eCl@ss number, version 11.0

27-37-18-19

eCl@ss number, version 9.0

27-37-18-19

ETIM number, version 7.0

EC001449

ETIM number, version 6.0

EC001449

Notice

Discontinued product

Approvals - Standards

Certificates

cULus

CCC

TILVA

General data

Standards

EN IEC 62061

EN ISO 13849-1

EN IEC 60947-5-1

EN IEC 60947-5-3

EN IEC 60947-5-5

EN IEC 61508

EN IEC 60204-1

EN IEC 60947-1

Climatic stress

EN 60068-2-78

Housing material

Glass-fibre reinforced thermoplastic, ventilated

Gross weight

230 g

General data - Features

Electronic Fuse

Yes

Wire breakage detection

Yes

Cross-circuit detection

Yes

Removable Terminals

Yes

Start input

Yes

Feedback circuit

Yes

Automatic reset function

Yes

Earth connection detection

Yes

Integral system diagnostics, status

Yes

Number of auxiliary contacts

1

Number of LEDs

4

Number of normally closed (NC)

2

Number of safety contacts

3

Safety classification
Standards

EN IEC 60947-5-1

EN IEC 61508

Stop-Category

0

Safety classification - Relay outputs
Performance Level, stop 0, up to

e

Category, Stop 0

4

Diagnostic Coverage (DC) Level, Stop 0

≥ 99 %

PFH value, Stop 0

2.00 x 10⁻⁸ /h

Safety Integrity Level (SIL), Stop 0, suitable for applications in

3

Mission time

20 Year(s)

Common Cause Failure (CCF), minimum

65

Mechanical data

Mechanical life, minimum

10,000,000 Operations

Mounting

Snaps onto standard DIN rail to EN 60715

Mechanical data - Connection technique

Terminal designations

IEC/EN 60947-1

Termination

rigid or flexible

Screw terminals M20 x 1.5

Cable section, minimum

0.25 mm²

Cable section, maximum

2.5 mm²

Tightening torque of Clips

0.6 Nm

Mechanical data - Dimensions

Width

22.5 mm

Height

100 mm

Depth

121 mm

Ambient conditions

Degree of protection of the enclosure

IP40

Degree of protection of the mounting space

IP54

Degree of protection of clips or terminals

IP20

Ambient temperature

-25 ... +45 °C

Storage and transport temperature

-40 ... +85 °C

Resistance to vibrations

10...55 Hz, Amplitude 0.35 mm, ± 15 %

Restistance to shock

30 g / 11 ms

Ambient conditions - Insulation values

Rated impulse withstand voltage Uimp

4 kV

Overvoltage category

III

Degree of pollution

2

Electrical data

Frequency range

50 Hz

60 Hz

Operating voltage

24 VAC -15 % / +10 %
24 VDC -10 % / +20 %

Ripple voltage

10 %

Rated operating voltage

24 VAC

Rated operating voltage

24 VDC

Rated AC voltage for controls, 50 Hz, minimum

20.4 VAC

Rated control voltage at AC 50 Hz, maximum

26.4 VAC

Rated AC voltage for controls, 60 Hz, minimum

20.4 VAC

Rated control voltage at AC 60 Hz, maximum

26.4 VAC

Rated AC voltage for controls at DC minimum

20.4 VDC

Rated control voltage at DC, maximum

28.8 VDC

Electrical power consumption

1.7 W

Electrical power consumption

1.9 VA

Contact resistance, maximum

0.1 Ω

Note (Contact resistance)

in new state

Drop-out delay in case of power failure, typically

80 ms

Drop-out delay in case of emergency, typically

20 ms

Pull-in delay at automatic start, maximum, typically

100 ms

Pull-in delay at RESET, typically

20 ms

Material of the contacts, electrical

AgSn0. self-cleaning, positive drive

Electrical data - Safe relay outputs

Voltage, Utilisation category AC-15

230 VAC

Current, Utilisation category AC-15

6 A

Voltage, Utilisation category DC-13

24 VDC

Current, Utilisation category DC-13

6 A

Switching capacity, minimum

10 VDC

Switching capacity, minimum

10 mA

Switching capacity, maximum

250 VAC

Switching capacity, maximum

8 A

Electrical data - Digital inputs

Conduction resistance, maximum

40 Ω

Electrical data - Digital Output

Voltage, Utilisation category DC-12

24 VDC

Current, Utilisation category DC-12

0.1 A

Electrical data - Relay outputs (auxiliary contacts)

Switching capacity, maximum

24 VDC

Switching capacity, maximum

2 A

Electrical data - Electromagnetic compatibility (EMC)

EMC rating

EMC-Directive

Status indication

Indicated operating states

Position relay K2

Position relay K1

Internal operating voltage Ui

Other data

Note (applications)

Guard system

Emergency-Stop button

Pull-wire emergency stop switches

Note

Note (General)

Inductive loads (e.g. contactors, relays, etc.) are to be suppressed by means of a suitable circuit.

Wiring example

Note (Wiring diagram)

The wiring diagram is shown with guard doors closed and in de-energised condition.

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.

Automatic start: The automatic start is programmed by connecting the feedback circuit to the terminals X1/X2. If the feedback circuit is not required, establish a bridge.

The control recognises cross-short, cable break and earth leakages in the monitoring circuit.

Input level: The example shows a 2-channel control of a guard door monitoring with two position switches, whereof one with positive break, external reset button (R); cross-wire monitoring and feedback circuit (H2)

In case of a 1-channel control, connect the NC contact to the operating voltage and bridge S11/S12 and S21/S22.

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