2TLA010061R0000 Sentry TSR20 Safety relay ABB Jokab Safety


Sentry TSR20 Safety relay ABB Jokab Safety

Sentry TSR20 Safety relay with delayed relay outputs 3NO+1NC, +24VDC power supply and screw terminals.
For monitoring of safety devices with contacts, 1 or 2 equivalent channels, and safety devices with OSSD outputs.
OFF-delay time (0,5s or 1,5s) selectable by switch on the front.

Sentry safety relays cover various types of safety applications up to PLe / SIL3.
Basic models provide reliable supervision of simpler safety functions, while universal models provide advanced features and high flexibility.
Models with display offer preset configurations and extensive information to further simplify troubleshooting.
Additional variants offer a high accuracy timer function of ± 1% and an adjustable time setting range from 0-999 s.
High output current capacity of up to 6 A can save the use of an intermediary contactor. Multi-reset allows up to 10 safety relays connected to one reset light-button.
All models are available with detachable push-in or screw terminals. Terminals and coding kit to mark removed terminals are available as accessories.

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Sentry TSR20 Safety relay ABB Jokab Safety

ABB Jokab Safety Relay, 3 Auxiliary Contacts, Screw Terminals – Sentry TSR20 Series – 2TLA010061R0000


Keep your staff and hardware in safe hands with this safety relay from ABB Jokab. It’s designed to detect electrical faults and breaks the circuit until operating conditions are safe, preventing machine damage and electric shock. You can use the switch on the front to set an OFF-delay time of 0.5 or 1.5s, helping to power down your equipment safely. For added convenience, the unit features a multi-reset function that lets you reset multiple connected relays at the press of a button.


Features & Benefits


• Wide operating temperature range between -25°C and +65°C for use in demanding environments
• Compact dimensions of 120 (L) x 22.5 (W) x 120mm (D) for installation in areas with limited space
• Rated control supply voltage of 24V DC for use in low-power systems
• IP20 rating means it’s finger-safe and protected against objects larger than 12mm




• Industrial automation
• Manufacturing equipment
• Pharmaceutical industry


How do I wire this safety relay?


This safety relay uses screw terminals, so you can use a screwdriver to secure your wires in place.


  • Function:
    Safety relay for monitoring of safety devices
  • Sub-Function:
    Start/test input, Auto reset only, Time delay selectable by switch
  • Timer Relay Type:
  • Time Range:
    0.5 and 1.5 seconds
  • Rated Control Supply Voltage (Us):
    24 V DC
  • Degree of Protection:
  • Connecting Capacity:
    Crimped Pin 1×0.2…3.3 mm²
    Crimped Pin 2×0.2…1.5 mm²
    Flexible with Ferrule 1×0.2…3.3 mm²
    Flexible with Ferrule 2×0.2…1.5 mm²
    Solid 1×0.2…3.3 mm²
    Solid 2×0.2…1.5 mm²
  • Wire Stripping Length:
    6.5 mm
  • Recommended Screw Driver:
  • Mounting on DIN Rail:
    TH35-15 (35 x 15 mm Mounting Rail) acc. to IEC 60715
    TH35-7.5 (35 x 7.5 mm Mounting Rail) acc. to IEC 60715
  • Standards:
    IS0 13849

Technical UL/CSA

  • Connecting Capacity UL/CSA:
    Crimped Pin 1x 24-12 AWG
    Crimped Pin 2x 24-16 AWG
    Flexible with Ferrule 1x 24-12 AWG
    Flexible with Ferrule 2x 24-16 AWG
    Solid 1x 24-12 AWG
    Solid 2x 24-16 AWG


  • Ambient Air Temperature:
    Operation -25 … +65 °C
    Storage -40 … +70 °C
  • RoHS Status:
    Following EU Directive 2011/65/EU
คุณสมบัติ Value
Supply Voltage 24V dc
Number of Channels 3
Safety Contacts 4
Function Safety Switch
Auxiliary Contacts 3
Reset Method Multi-Reset
Range Sentry
Safety Category ISO 13849-1 4
PL ISO 13849-1 e
SIL IEC 61508 3
Terminal Type Screw
Configurable Yes
Standards Met CE
Width 120mm
Depth 120mm
Series TSR20
Length 22.5mm
Performance Level e
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