Menu

Eaton/Moeller ESR4
Safety Relay Index

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 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


Let our expert sales staff guide you through finding the right products to fit your needs. CALL 866-595-9616.