SRB400NE 24V

Item number:101178394

Product features

Suitable for the signal processing of outputs with contact sensors
Possibility to connect a non-contact end switch or speed reduction switch
2 safety contacts, switch-off level 1;2 safety contacts, switch-off level 2

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Ordering data

Replacement article number101178528

Product type descriptionSRB400NE 24V

Article number (order number)101178394

EAN (European Article Number)4250116202393

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

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 weight350g

General data - Features

Wire breakage detection Yes

Cross-circuit detectionYes

Removable TerminalsYes

Feedback circuit Yes

Automatic reset functionYes

Earth connection detectionYes

Integral system diagnostics, statusYes

Number of LEDs7

Number of normally closed (NC)4

Number of safety contacts4

Safety classification

StandardsEN IEC 60947-5-1EN IEC 61508

Stop-Category0

Safety classification - Relay outputs

PFH value2.00 x 10⁻⁸/h

Performance Level, stop 0, up toe

Category, Stop 04

Diagnostic Coverage (DC) Level, Stop 0≥ 99%

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

Width45mm

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, ± 15 %

Restistance to shock30 g / 11 ms

Ambient conditions - Insulation values

Rated impulse withstand voltage U_imp4kV

Overvoltage categoryIII

Degree of pollution2

Electrical data

Frequency range50Hz60Hz

Operating voltage24 VAC -15 % / +10 %
24 VDC -15 % / +20 %

Ripple voltage10%

Rated operating voltage24VAC

Rated operating voltage24VDC

Rated AC voltage for controls, 50 Hz, minimum20.4VAC

Rated control voltage at AC 50 Hz, maximum26.4VAC

Rated AC voltage for controls, 60 Hz, minimum20.4VAC

Rated control voltage at AC 60 Hz, maximum26.4VAC

Rated AC voltage for controls at DC minimum20.4VDC

Rated control voltage at DC, maximum28.8VDC

Electrical power consumption6W

Electrical power consumption6VA

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

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-15230VAC

Current, Utilisation category AC-154A

Voltage, Utilisation category DC-1324VDC

Current, Utilisation category DC-134A

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 U_iPosition relay K1Position relay K2Position relay K3Position relay K5

Other data

Note (applications)Guard systemSafety sensor

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)(H2) = Feedback circuitRelay outputs: Suitable for 1 channel control, for increase in capacity or number of contacts by means of contactors or relays with positive-guided contacts.The control system recognises wire-breakage and earth faults in the monitoring circuit.The example shows a 1-channel control with contact A for a guard door monitor; of which at least one contact has positive break; with external reset button (R).The wiring diagram is shown with non-actuated limit switches 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, 15:37