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  • Level 1: Reset without edge detection, Optional Automatic reset function, Short-circuit recognition, Level 2: / Opener (NC) Normally open contact (NO)
  • Multifunctional safety relay module for superior diagnostics and visualisation
  • Suitable for the signal processing of outputs with contact sensors
  • Suitable for signal processing of outputs connected to potentials (AOPDs), e.g. safety light grids/curtains
  • Suitable for the signal processing of outputs with contact sensors
  • 3 safety contacts, STOP 0
  • 2 + 6 Signalling outputs

Ordering data

Note (Delivery capacity)

Not available!

Product type description

SRB308IT-230VAC

Article number (order number)

101158202

EAN (European Article Number)

4250116201563

eCl@ss number, Version 9.0

27-37-18-19

eCl@ss number, Version 11.0

27-37-18-19

ETIM number, version 6.0

EC001449

Replacement article number

101166107

Approval - Standards

Certificates

cULus

EAC

General data

Standards

IEC 61508

IEC/EN 60204-1

EN 60947-5-1

EN ISO 13849-1

Climatic stress

EN 60068-2-78

Enclosure material

Glass-fibre reinforced thermoplastic, ventilated

Material of the contacts, electrical

AgSn0, Ag-Ni, self-cleaning, positive drive

Gross weight

480 g

General data - Features

Stop-Category

0

Electronic Fuse

Yes

Wire breakage detection

Yes

Short-circuit recognition

Yes

Removable Terminals

Yes

Start input

Yes

Feedback circuit

Yes

Automatic reset function

Yes

Reset edge detection

Yes

Earth connection detection

Yes

Integral System Diagnostics, status

Yes

Number of auxiliary contacts

2

Number of LEDs

5

Number of openers

2

Number of undelayed semi-conductor outputs with signaling function

6

Number of safety contacts

3

Number of signalling outputs

6

Safety appraisal

Standards

EN 60947-5-1

IEC 61508

Mission Time

20 Year(s)

Common Cause Failure (CCF), minimum

65

Safety appraisal - 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

Mechanical data

Mechanical life, minimum

10,000,000 Operations

Mounting

Snaps onto standard DIN rail to EN 60715

Mechanical data - Connection technique

Terminal Connector

Screw connection

rigid or flexible

Terminal designations

IEC/EN 60947-1

Cable section, minimum

0.25 mm²

Cable section, maximum

2.5 mm²

Tightening torque of Clips

0.6 Nm

Mechanical data - Dimensions

Width

45 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, minimum

-25 °C

Ambient temperature, maximum

+45 °C

Storage and transport temperature, minimum

-40 °C

Storage and transport temperature, maximum

+85 °C

Resistance to vibrations to EN 60068-2-6

10 ... 55 Hz, Amplitude 0.35 mm

Restistance to shock

30 g / 11 ms

Ambient conditions - Insulation value

Rated impulse withstand voltage Uimp

4 kV

Overvoltage category

III

Degree of pollution to VDE 0110

2

Electrical data

Frequency range

50 Hz

60 Hz

Rated operating voltage

230 VAC -15% / + 10%

Operating current

125 mA

Rated AC voltage for controls, 50 Hz, minimum

215 VAC

Rated control voltage at AC 50 Hz, maximum

253 VAC

Rated AC voltage for controls, 60 Hz, minimum

215 VAC

Rated control voltage at AC 60 Hz, maximum

253 VAC

Utilisation category AC-15

230 VAC

Utilisation category AC-15

1.5 A

Utilisation category DC-13

24 VDC

Utilisation category DC-13

1.2 A

Electrical power consumption

3 W

Electrical power consumption

3 VA

Contact resistance, maximum

0.1 Ω

Note (Contact resistance)

in new state

Drop-out delay in case of emergency stop, maximum

15 ms

Pull-in delay at automatic start, maximum, typically

60 ms

Pull-in delay at RESET, typically

200 ms

Electrical data - Digital inputs

Conduction resistance, maximum

40 Ω

Electrical data - Electromagnetic compatibility (EMC)

EMC rating

EMC-Directive

Status indication

Indicated operating states

Position relay K2

Position relay K1

Internal operating voltage Ui

Position relay K3

Other data

Note (applications)

Guard system

Pull-wire emergency stop switches

Safety light curtain

Emergency stop button

Notes

Note (General)

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

Circuit example

Note (Wiring diagram)

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

The ISD tables (Intergral System Diagnostics) for analysis of the fault indications and their causes are shown in the appendix.

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.

Connect potential p-type outputs of safety light grids/curtains to S12/S22. The devices must have the same reference potential.

2 channel control shown for a guard-door monitor with two contacts, of which at least one contact has positive break, with external reset button (R) and feedback circuit (H2). (example without cross-wire monitoring)

For 2-channel control with cross-wire monitoring, connect the NC contact to S11/S12 and S31/S32 and bridge S21/S22

For 1-channel control, connect NC contact to S11/S12 and bridge S21/S22 and S31/S32

'Start function / Reset button: The function 'trailing edge' is programmed by means of the 'AF' switch located underneath the housing cover (switch position = 1). The automatic start is programmed by bridging terminals X3/X5 and by switching the 'AF' switch to 0. The time offset between the channels is approx. 100 ms. An endless time offset between the channels 1 and 2 is programmed by bridging the terminals X3/X6.'

F1 = Hybrid fuse

F2 = Fuse for signalling outputs

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