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ESR4
Safety relay for monitoring of Emergency-Stop applications and safety doors

Safety relay
View the Catalog Page and Dimensions
Part Name Channel Actuating Voltage Contacts Number of enabling paths to IEC/EN 60204 Stop Category
Delayed Non-Delayed Signal 0 1
ESR4-NO-30-24VAC-DC Dual 24 V DC
24 V AC
50/60 Hz
- 3 - 3 -
ESR4-NO-30-115VAC 115 V AC,
50/60 Hz
- 3 - 3 -
ESR4-NO-30-230VAC 230 V AC,
50/60 Hz
- 3 - 3 -
ESR4-NO-31 Single 24 V DC,
24 V AC,
50/60 Hz
- 3 1 3 -
ESR4-NO-31-115VAC 115 V AC,
50/60 Hz
- 3 1 3 -
ESR4-NO-31-230VAC 230 V AC,
50/60 Hz
- 3 1 3 -
ESR4-NO-21 Dual 24 V DC,
24 V AC,
50/60 Hz
- 4 1 2 -
ESR4-NV3-30 Dual-channel, Off delayed,
0.15 — 3 s
24 V DC 3 4 - 2 1
ESR4-NV30-30 Dual-channel, Off delayed,
1.5 — 30 s
24 V DC 3 4 - 2 1
ESR4-NT30-30 Dual-channel,
delayed, 1.5 — 30 s
24 V DC 3 4 - 2 1

For contact mat monitoring

ESR4-NM-21 Dual 24 V DC - 4 1 2 -

Two-hand relay

ESR4-NZ-21 Dual 24 V DC,
24 V AC
50/60 Hz
- 4 1 2 -

Contact Expansion Modules

ESR4-NE-42 Non-delayed 24 V DC,
24 V AC
50/60 Hz
- 4 2 4 -
ESR4-VE3-42 Off-delayed 24 V DC - 4 2 - 4

ESR4 Installation Sheets

Evaluation device for two-hand actuators
ESR4-NZ-21
06/03 AWA 2131-1743
[417 KB] [18.12.2001]
Basic device for Emergency-Stop and Safety Gate Applications
ESR3-NO-31(230V)
07/03 AWA 2131-1740
[314 KB] [18.12.2001]
Basic device for Emergency-Stop and Safety Gate Applications
ESR4-NO-21, ESR4-NM-21
08/03 AWA 2131-1741
[353 KB] [18.12.2001]

Base device for Emergency Stop and Safety Gate Applications
ESR4-NO-30
04/04 AWA 2131-2150
[478 KB] [21.07.2004]

 

Base device for Emergency Stop and Safety Gate Applications
ESR4-NT30-30
04/04 AWA 2131-1884
[403 KB] [18.12.2001]

 

Base device for Emergency Stop and Safety Gate Applications
ESR4-NV3-30, ESR4-NV30-30
02/04 AWA 2131-1838
[387 KB] [22.01.2002]

 

Basic device for Emergency-Stop Applications
ESR4-NO-31
05/04 AWA 2131-1742
[420 KB] [18.12.2001]

 

Emergency-Stop-Relays
ESR4-NE-42, ESR4-VE3-42
07/02 AWA 2131-1744
[288 KB] [18.12.2001]

View Control Relay Catalog and Engineering Information

The device consists of a power section, the electronics and two redundant relays with interlocked opposing contacts for the enabling and signaling paths.

The range includes relays for Emergency-Stop circuits, monitoring of safety mats, bumpers, protective guards and monitoring of two-hand controls, complying with safety category 3 or 4, as per the EC machinery directive standards EN 954-1 and IEC/EN 60 204-1.

Safety relays for Emergency-Stop and monitoring protective guards are available for single or dual channel applications, thus increasing the range of possible application


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