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Safety monitoring modules

59 Products

Safety relay modules in various designs

In the field of safe signal processing, the Schmersal Group offers its customers a range of type-approved solutions with a variety of visualization and diagnostic options. A distinction is made between universally applicable safety relay modules, which are used, for example, for the instantaneous disconnection of the energy supply to the hazardous movement (Stop 0 category according to EN 60204-1), and special safety modules, eg with double acknowledgment or differentiated switch-off behavior. The Schmersal Group's extensive product portfolio also includes safety gate monitors for potentially explosive atmospheres. An overview:

Safety door monitors: SRB-EXi safety relay module

The explosion-proof SRB-EXi version of the Schmersal safety relay modules has IECEx and INMETRO approval. They are suitable for both the safe signal evaluation of emergency stop devices and safety door monitoring.

Stop 0 and Stop 0/1

The safety relay modules Stop 0 and Stop 0/1 are used for signal processing of interlocking devices, E-Stop command devices, as well as safety magnetic switches and non-potential-free signals, such as those from AOPDs. They are suitable for applications up to PL e/category 4 in accordance with EN ISO 13849-1 and SIL 3 in accordance with IEC 61508

SRB 100DR for double acknowledgment

These safety relay modules with double acknowledgment ensure that the operator is not in the danger area when the machine control system is reactivated. To do this, a reset button inside the system is pressed first, followed by another outside the accessible system area. The SRB 100DR series for double recognition is suitable for applications up to PL e/Category 4 according to EN ISO 13849-1 and SIL 3 according to IEC 61508.

Image 69323e8968cc98b09bc8f9fd

SRB-E-201ST

Type:

Two-hand operator inputs

Features:

1 or 2-channel control, Start button / Auto-start

Monitoring two-hand control panels to EN 574 IIIC

2 Safety outputs 5.5 A, 1 Signalling output

Image 69323e8968cc98b09bc8f9fd

SRB-E-201LC

Type:

Stop category 0 (multifunctional)

Features:

1 or 2-channel control, Start button / Auto-start

2 Safety outputs 2 A

1 Signalling output

Image 69323e8968cc98b09bc8f9fd

SRB-E-204ST

Type:

Stop category 0 (multifunctional)

Features:

1 or 2-channel control, Start button / Auto-start

2 Safety outputs

4 signalling outputs

Image 69323f2068cc98b09bc8fcb8

SRB-E-301MC

Type:

Stop category 0 (multifunctional)

Features:

Suitable for applications up to Cat. 4 / PL e and up to SIL 3

1 or 2 channel signal evaluation

Start/feedback circuit monitoring

Optionally with short-circuit recognition

3 safety contacts, stop category 0

Image 69323f3c68cc98b09bc8fd23

SRB-E-301ST

Type:

Stop category 0 (multifunctional)

Features:

1 or 2-channel control, Start button / Auto-start

1 Auxiliary contact

3 safety contacts

Image 69323f6b68cc98b09bc8fd6d

SRB-E-212ST

Type:

STOP 0 / 1 Function (multifunctional)

Features:

1 oder 2-channel control, 2 safety contacts STOP 0

1 Safety output STOP 1

Drop-out delay adjustable in steps 0 … 30

Image 69323f6b68cc98b09bc8fd6d

SRB-E-322ST

Type:

STOP 0 / 1 Function (multifunctional)

Features:

1 oder 2-channel control, 3 safety contacts STOP 0

2 Safety outputs STOP 1

Drop-out delay adjustable in steps 0 … 30

Image 69323f6b68cc98b09bc8fd6d

SRB-E-232ST

Type:

STOP 0 / 1 Function (multifunctional)

Features:

1 oder 2-channel control

2 Safety outputs STOP 0

3 safety contacts STOP 1

Drop-out delay adjustable in steps 0 … 30

Image 6932400268cc98b09bc8fe62

SRB-E-402ST

Type:

Two-hand operator inputs

Features:

Two-functions safety monitoring module (double evaluation), 2 x STOP 0

2 x 1 oder 2-channel control, 2 x Start button / Auto-start

1 x Monitoring two-hand control panels to ISO 13851

2 safety contacts, 2 Safety outputs

Image 6932406968cc98b09bc8fec5

SRB202C

Type:

Combination (double evaluation)

Features:

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

Image 6932406968cc98b09bc8fec5

SRB400C

Type:

Combination (double evaluation)

Features:

Two-functions safety monitoring module (double evaluation)

2 x 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)

Image 6932409568cc98b09bc8ff36

SRB400NE

Type:

Combination (double evaluation)

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

Image 693240b268cc98b09bc8ff7f

SRB402NE

Type:

Combination (double evaluation)

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

2 Signalling outputs

Image 693240c868cc98b09bc8ffc8

SRB100DR

Type:

Combination (double evaluation)

Features:

Safety relay module for double reset

Suitable for signal processing of potential-free outputs, e.g. command devices

1 safety contact, STOP 0

Image 693240de68cc98b09bc90026

SRB-E-302ST

Type:

Combination (double evaluation)

Features:

Monitoring of 2 sensors STOP 0, 1 oder 2-channel control

Start button / Auto-start

2 Safety contacts, 1 Safety Output, 2 Signalling outputs

Image 6932411368cc98b09bc9007b

SRB-E-201ST

Type:

Combination (double evaluation)

Features:

STOP 0 Function, 1 oder 2-channel control

Start button / Auto-start

Monitoring two-hand control panels to EN 574 IIIC

2 Safety outputs 5.5 A, 1 Signalling output

Image 6932412d68cc98b09bc900c4

SRB-E-402ST

Type:

Combination (double evaluation)

Features:

Two-functions safety monitoring module (double evaluation), 2 x STOP 0

2 x 1 oder 2-channel control, 2 x Start button / Auto-start

1 x Monitoring two-hand control panels to ISO 13851

2 safety contacts, 2 Safety outputs

Image 6932414468cc98b09bc9010d

SRB200ZHX1

Type:

Two-hand operator inputs

Features:

Monitoring two-hand control panels to EN ISO 13851

Image 6932418068cc98b09bc90210

SRB201ZH

Type:

Two-hand operator inputs

Features:

Monitoring two-hand control panels to EN ISO 13851

2 safety contacts, STOP 0, 1 Signalling output

Image 6932419a68cc98b09bc90256

SRB201ZHX3

Type:

Two-hand operator inputs

Features:

Monitoring two-hand control panels to EN ISO 13851

2 safety contacts, STOP 0, 1 Signalling output