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General Purpose safety controllers (Series PROTECT SRB)
General Purpose safety controllers (Series PROTECT SRB)
SRB 031LC

• 3 safety contacts, STOP 1
• 1 Signalling output
• Suitable for signal processing of potential-free outputs, e.g. emergency stop command devices, position switches and solenoid interlocks
| Product type description |
![]() Start-up test (Y/N) |
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SRB 031LC-0,6SEC![]() |
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SRB031MC
• Fit for signal evaluation of outputs of safety magnetic switches
• Drop-out delay can be set between 0,4 to 1,5 s
• 3 safety contacts, STOP 1
• 1 Signalling output
• Suitable for signal processing of potential-free outputs, e.g. emergency stop command devices, position switches and solenoid interlocks
• Suitable for signal processing of outputs connected to potentials (AOPDs), e.g. safety light grids/curtains
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SRB031MC-24V/1,1SEC![]() |
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SRB200X2

• 2 safety contacts, STOP 0
• Suitable for signal processing of potential-free outputs, e.g. emergency stop command devices, position switches and solenoid interlocks
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SRB200X2![]() |
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SRB202C

• 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
| Product type description |
![]() Reset with edge detection (Y/N) |
![]() - Short-circuit recognition (Y/N) |
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SRB202CA/T 24VDC![]() |
Yes (Level 1) | No (Level 1) |
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SRB202CA/Q 24VDC![]() |
No | Yes (Level 1) | |||
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SRB202CA/QT 24VDC![]() |
Yes (Level 1) | Yes (Level 1) | |||
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SRB202CA 24VDC![]() |
No | No (Level 1) | |||
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SRB202CS/T 24VDC![]() |
Yes (Level 1) | No (Level 1) | |||
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SRB202CS 24VDC![]() |
No | No (Level 1) | |||
SRB206SQ

• 2 safety contacts, STOP 0
• 6 Signalling outputs
• Multi-evaluation of up to 6 safety guards
• Suitable for signal processing of potential-free outputs, e.g. emergency stop command devices, position switches and solenoid interlocks
| Product type description |
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SRB206SQ-230V![]() |
48 ... 240 VAC | AC | |||
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SRB 206SQ-24V![]() |
24 VDC −15% / +20%, residual ripple max. 10% 24 VAC −15% / +10% |
AC/DC | |||
SRB207AN

• Fit for signal evaluation of outputs of safety magnetic switches
• 2 safety contacts, STOP 0
• 6 Signalling outputs
• Multi-evaluation of up to 6 safety guards
• Suitable for signal processing of potential-free outputs, e.g. emergency stop command devices, position switches and solenoid interlocks
| Product type description |
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SRB207AN 230VAC![]() |
48 … 240 VAC | AC | |||
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SRB207AN 24V![]() |
24 VDC −15% / +20%, residual ripple max. 10% | DC | |||
SRB 207AN/1

• Suitable for signal processing of potential-free outputs, e.g. emergency stop command devices, position switches and solenoid interlocks
• Fit for signal evaluation of outputs of safety magnetic switches
• 2 safety contacts, STOP 0
• 6 Signalling outputs
Multi-evaluation of up to 6 safety guards
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SRB 207AN/1-230V![]() |
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SRB219IT

• Multifunctional safety relay module for superior diagnostics and visualisation
• Fit for signal evaluation of outputs of safety magnetic switches
• 2 safety contacts, STOP 0;
1 safety contact, STOP 1 (adjustable 1 ... 30 s)
• Suitable for signal processing of potential-free outputs, e.g. emergency stop command devices, position switches and solenoid interlocks
• Suitable for signal processing of outputs connected to potentials (AOPDs), e.g. safety light grids/curtains
• 1 + 8 Signalling outputs
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SRB219IT-24VAC/DC![]() |
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SRB220XV2 / V.2
• 2 safety contacts, STOP 0; 2 safety contacts, STOP 1
• Suitable for signal processing of potential-free outputs, e.g. emergency stop command devices, position switches and solenoid interlocks
• Suitable for signal processing of outputs connected to potentials (AOPDs), e.g. safety light grids/curtains
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SRB220XV2 / V.2![]() |
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SRB 301AN
• Fit for signal evaluation of outputs of safety magnetic switches
• 3 safety contacts, STOP 0
• 1 Signalling output
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SRB301AN 24VAC/DC![]() |
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SRB301LC
• 1 Signalling output
• 3 safety contacts, STOP 0
• Suitable for signal processing of potential-free outputs, e.g. emergency stop command devices, position switches and solenoid interlocks
| Product type description |
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![]() Electronic protection (Y/N) |
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SRB301LC 24VAC/DC![]() |
Screw connection | No |
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SRB 301LCI/7![]() |
Spring pulley connection, plug-in | Yes | |||
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SRB 301LCI-24VAC/DC![]() |
Screw connection | Yes | |||
SRB 301LC/B
• Fit for signal evaluation of outputs of safety magnetic switches (to this end, integrated current and voltage limiters)
• Suitable for signal processing of potential-free outputs, e.g. emergency stop command devices, position switches and solenoid interlocks
• Suitable for signal processing of outputs connected to potentials (AOPDs), e.g. safety light grids/curtains
• 3 safety contacts, STOP 0
• 1 Signalling output
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SRB 301LC/B-24V![]() |
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SRB301SQ
• 3 safety contacts, STOP 0
• 1 Signalling output
• Suitable for signal processing of potential-free outputs, e.g. emergency stop command devices, position switches and solenoid interlocks
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SRB301SQ 230V![]() |
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SRB 301MC
• Fit for signal evaluation of outputs of safety magnetic switches
• 3 safety contacts, STOP 0
• 1 Signalling output
• Suitable for signal processing of outputs connected to potentials (AOPDs), e.g. safety light grids/curtains
• Suitable for signal processing of potential-free outputs, e.g. emergency stop command devices, position switches and solenoid interlocks
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SRB 301MC-24V![]() |
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SRB301ST
• Suitable for signal processing of potential-free outputs, e.g. emergency stop command devices, position switches and solenoid interlocks
• Suitable for signal processing of outputs connected to potentials (AOPDs), e.g. safety light grids/curtains
• Fit for signal evaluation of outputs of safety magnetic switches
• 3 safety contacts, STOP 0
• 1 Signalling output
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SRB301ST-24V-(V.2)![]() |
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SRB301ST 230V
• Suitable for signal processing of potential-free outputs, e.g. emergency stop command devices, position switches and solenoid interlocks
• 3 safety contacts, STOP 0
• 1 Signalling output
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SRB301ST 230V![]() |
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SRB301X1
• Suitable for signal processing of potential-free outputs, e.g. emergency stop command devices, position switches and solenoid interlocks
• 3 safety contacts, STOP 0
• 1 Signalling output
SRB301X4
• Suitable for signal processing of potential-free outputs, e.g. emergency stop command devices, position switches and solenoid interlocks
• Suitable for signal processing of outputs connected to potentials (AOPDs), e.g. safety light grids/curtains
• 3 safety contacts, STOP 0
• 1 Signalling output
| Product type description |
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SRB301X4-24V![]() |
24 VDC −15% / +20%, residual ripple max. 10% 24 VAC −15% / +10% |
AC / DC |
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SRB301X4-115V![]() |
115 VAC −15% / +10% | AC | |||
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SRB301X4-230V![]() |
230 VAC −15% / +10% | AC | |||
SRB 302X3
• Suitable for signal processing of potential-free outputs, e.g. emergency stop command devices, position switches and solenoid interlocks
• Suitable for signal processing of outputs connected to potentials (AOPDs), e.g. safety light grids/curtains
• 3 safety contacts, STOP 0
• 2 Signalling outputs
| Product type description |
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SRB 302X3-24V-230V![]() |
230 VAC −15% / +10% 24 VDC −15% / +20%, residual ripple max. 10% 24 VAC −15% / +10% |
AC | |||
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SRB 302X3-24V-115V![]() |
115 VAC −15% / +10%; 24 VDC −15% / +20%, residual ripple max. 10% 24 VAC −15% / +10% |
AC / DC | |||
SRB304ST
• Suitable for signal processing of potential-free outputs, e.g. emergency stop command devices, position switches and solenoid interlocks
• Suitable for signal processing of outputs connected to potentials (AOPDs), e.g. safety light grids/curtains
• Fit for signal evaluation of outputs of safety magnetic switches
• 3 safety contacts, STOP 0
• 4 Signalling outputs
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SRB304ST![]() |
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SRB308IT
• Multifunctional safety relay module for superior diagnostics and visualisation
• Suitable for signal processing of potential-free outputs, e.g. emergency stop command devices, position switches and solenoid interlocks
• Suitable for signal processing of outputs connected to potentials (AOPDs), e.g. safety light grids/curtains
• Fit for signal evaluation of outputs of safety magnetic switches
• 3 safety contacts, STOP 0
• 2 + 6 Signalling outputs
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SRB308IT-230VAC![]() |
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SRB308IT-24VAC/DC![]() |
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SRB 308IT-115V![]() |
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SRB320XV3 / V.2
• Suitable for signal processing of potential-free outputs, e.g. emergency stop command devices, position switches and solenoid interlocks
• Suitable for signal processing of outputs connected to potentials (AOPDs), e.g. safety light grids/curtains
• 3 safety contacts, STOP 0; 2, safety contacts STOP 1
SRB324ST
• Suitable for signal processing of potential-free outputs, e.g. emergency stop command devices, position switches and solenoid interlocks
• Suitable for signal processing of outputs connected to potentials (AOPDs), e.g. safety light grids/curtains
• 3 safety contacts, STOP 0;
2 safety contacts, STOP 1 (adjustable 1 ... 30 s)
• 4 Signalling outputs
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SRB324ST 24V (V.3)![]() |
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SRB400C.
• 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)
| Product type description |
![]() Reset with edge detection (Y/N) |
![]() - Short-circuit recognition (Y/N) |
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SRB 400CA/T-24V![]() |
Yes (Level 1) | No (Level 1) |
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SRB400CS 24VDC![]() |
No | No (Level 1) |
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SRB400CA/Q 24VDC![]() |
No | Yes | |||
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SRB400CA/QT 24VDC![]() |
Yes | Yes | |||
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SRB400CA 24VDC![]() |
No | No | |||
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SRB400CS/T 24VDC![]() |
Yes (Level 1) | No (Level 1) | |||
SRB504ST
• Suitable for signal processing of potential-free outputs, e.g. emergency stop command devices, position switches and solenoid interlocks
• Suitable for signal processing of outputs connected to potentials (AOPDs), e.g. safety light grids/curtains
• Fit for signal evaluation of outputs of safety magnetic switches
• 5 safety contacts, STOP 0
• 4 Signalling outputs
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SRB504ST![]() |
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RB301HC/R
• 3 safety contacts, STOP 0
• 1 Signalling output
• Suitable for signal processing of potential-free outputs, e.g. emergency stop command devices, position switches and solenoid interlocks and Two-hand control panels and Safety mats
| Product type description |
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SRB301HC/R-24V![]() |
24 VDC −15% / +20%, residual ripple max. 10% 24 VAC −15% / +10% |
AC / DC |
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SRB301HC/R-230V![]() |
48 ... 240 VAC | AC |
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SRB301HC/T
• 3 safety contacts, STOP 0
• 1 Signalling output
• Suitable for signal processing of potential-free outputs, e.g. emergency stop command devices, position switches and solenoid interlocks and Safety mats
| Product type description |
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SRB301HC/T-24V![]() |
24 VDC −15% / +20%, residual ripple max. 10% 24 VAC −15% / +10% |
AC / DC |
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SRB301HC/T-230V![]() |
48 ... 240 VAC | AC | |||
SRB400NE
• Fit for signal evaluation of outputs of safety magnetic switches (to this end, integrated current and voltage limiters)
• 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
| Product type description |
![]() Rated operating voltage Ue |
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SRB400NE 24V![]() |
24 VDC −15% / +20%, residual ripple max. 10% 24 VAC −15% / +10% |
AC/DC |
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SRB400NE 230V![]() |
230 VAC −15% / +10% | AC | |||
SRB402NE
• Fit for signal evaluation of outputs of safety magnetic switches (to this end, integrated current and voltage limiters)
• 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
| Product type description |
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SRB402NE 230V![]() |
230 VAC −15% / +10% | AC | |||
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SRB402NE 24V![]() |
24 VDC −15% / +20%, residual ripple max. 10% 24 VAC −15% / +10% |
AC/DC | |||
SRB301MA
• 1 Signalling output
• Suitable for signal processing of potential-free outputs, e.g. emergency stop command devices, position switches and solenoid interlocks
• Fit for signal evaluation of outputs of safety magnetic switches
• 3 safety contacts, STOP 0
• Suitable for signal processing of outputs connected to potentials (AOPDs), e.g. safety light grids/curtains
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SRB301MA-24V![]() |
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SRB201LC
• Suitable for signal processing of potential-free outputs, e.g. emergency stop command devices, position switches and solenoid interlocks
• 2 safety contacts, STOP 0
• 1 Signalling output
| Product type description |
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SRB201LC![]() |
24 VDC −15% / +20%, residual ripple max. 10% 24 VAC −15% / +10% |
AC/DC | |||
SRB211LT
• Suitable for signal processing of potential-free outputs, e.g. emergency stop command devices, position switches and solenoid interlocks
• 1 Signalling output
• 2 safety contacts, STOP 0
• 1 safety contact, STOP 1
• Multi-evaluation of up to 6 safety guards
• Fit for signal evaluation of outputs of safety magnetic switches
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SRB211LT/CC![]() |
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SRB211LT/PC ![]() |
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SRB 301LC/8
• Suitable for signal processing of potential-free outputs, e.g. emergency stop command devices, position switches and solenoid interlocks
• 3 safety contacts, STOP 0, 1 Auxiliary contact
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SRB 301LC/8![]() |
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SRB 324LT
• Suitable for signal processing of potential-free outputs, e.g. emergency stop command devices, position switches and solenoid interlocks
• Suitable for signal processing of outputs connected to potentials (AOPDs), e.g. safety light grids/curtains
• 3 safety contacts, STOP 0;
2 safety contacts, STOP 1 (adjustable 1 … 30 s)
• 3 Signalling outputs, 1 Auxiliary contact
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SRB 324LT-480S![]() |
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General Purpose safety controllers (Series PROTECT SRB)
SRB 031LC

• 3 safety contacts, STOP 1
• 1 Signalling output
• Suitable for signal processing of potential-free outputs, e.g. emergency stop command devices, position switches and solenoid interlocks
| Product type description |
![]() Start-up test (Y/N) |
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SRB 031LC-0,6SEC![]() |
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SRB031MC
• Fit for signal evaluation of outputs of safety magnetic switches
• Drop-out delay can be set between 0,4 to 1,5 s
• 3 safety contacts, STOP 1
• 1 Signalling output
• Suitable for signal processing of potential-free outputs, e.g. emergency stop command devices, position switches and solenoid interlocks
• Suitable for signal processing of outputs connected to potentials (AOPDs), e.g. safety light grids/curtains
| Product type description | |||
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SRB031MC-24V/1,1SEC![]() |
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SRB200X2

• 2 safety contacts, STOP 0
• Suitable for signal processing of potential-free outputs, e.g. emergency stop command devices, position switches and solenoid interlocks
| Product type description | |||
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SRB200X2![]() |
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SRB202C

• 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
| Product type description |
![]() Reset with edge detection (Y/N) |
![]() - Short-circuit recognition (Y/N) |
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SRB202CA/T 24VDC![]() |
Yes (Level 1) | No (Level 1) |
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SRB202CA/Q 24VDC![]() |
No | Yes (Level 1) | |||
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SRB202CA/QT 24VDC![]() |
Yes (Level 1) | Yes (Level 1) | Partners
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