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Eaton/Moeller ESR5
Safety Relay

Safety Relay for Monitoring
of Emergency-Stop Applications and Safety Doors


Eaton Moeller ESR5 Safety Relays

Product Description

ESR5 Safety relays are intended to reliably monitor the signals from safety devices at all times and switch off quickly and reliably in an emergency. Single-channel and dual channel versions are available for the construction of safety applications. The internal logic of the safety relays monitors the safety circuits (emergency stop, guard door, and so on) and activates the enable paths in a fault-free condition. Upon actuation of the safety device or in the even of a fault, the enable paths are switched off. Any faults that occur in the control circuit, such as ground fault, cross connection fault or wire breakage are also detected.

Application Description

Eaton’s ESR5 safety relays provide optimal safety and a high degree of reliability on plant machinery. Applications that meet the highest safety requirements in accordance with EN 954-1, EN ISO 13849-1 up to PL e and accordance with IEC 62061 up to SILCL 3 can be realized with the ESR5 safety relay.

Compatible with a wide variety of safety devices:

  • Emergency stops
  • Rope pulls
  • Two-hand control stations
  • Light curtain (OSSD)
  • Gate enable device
  • Safety switches

Features

  • Use for the highest safety requirements in accordance with EN 954-1 EN ISO 13849-1, IEC 62061 and EC 61508
  • Suitable for the world market with UL, cUL certifications and TÜV Rhineland functional safety certifications
  • Applicable for EN 60204 stop categories 0 or 1
  • Plug-in screw terminals for fast and fault-free replacement
  • Multi-voltage versions (24–230 Vac/Vdc) for a flexible range of application
  • Delayed and non-delayed contact expansions accommodate a wide variety of applications

Standards and Certifications

  • UL 508; CSA-C22.2 No 14-95; CE Marked
  • UL/cUL file number:E29184
  • Degree of protection: IP20
  • TÜV Rhineland certified
  • UL/cULus listed

Product Selection

Single
Channel
Dual
Channel
Safety
Output
(NO)
Safety
Output (NO)
(Delayed)
Output
Delay
Signal
Output
(NC)
Feedback
Output
Control
Voltage
Part
Number
4 1 24 Vac/Vdc ESR5-NO-41-24VAC-DC
2 1 24 Vac/Vdc ESR5-NO-21-24VAC-DC
3 1 24 Vac/Vdc ESR5-NO-31-24VAC-DC
3 1 230 Vac ESR5-NO-31-230VAC
3 1 24–230 Vac/Vdc ESR5-NO-31-AC-DC
2 2 0.1–30s 24 Vdc ESR5-NV3-30
2 1 24 Vac/Vdc ESR5-NZ-21-24VAC-DC
5 1 1 24 Vac/Vdc ESR5-NE-51-24VAC-DC
4 0.3–3s 1 1 24 Vdc ESR5-VE3-42

Application Overview

Emergency
Stop
Safety
Switches
Light
Curtain/
OSSD(1)
Two-Hand
Control
(EN 574
Type III C)
Contact
Expansion
Off-Delayed Cross
Circuit
Recognition
Monitored
Manual
Reset(2)
Part
Number
ESR5-NO-41-24VAC-DC
ESR5-NO-21-24VAC-DC
ESR5-NO-31-24VAC-DC
ESR5-NO-31-230VAC
ESR5-NO-31-AC-DC
ESR5-NV3-30
ESR5-NZ-21-24VAC-DC
ESR5-NE-51-24VAC-DC
ESR5-VE3-42

Application Overview, continued

Single
Channel
Dual
Channel
Stop
Category
EN 60204
Control
Category
to EN 954-1
Achievable
PL per
ISO 13849-1
Achievable
SIL per
EN IEC 62061
Part
Number
0 2 PL d SIL 3 ESR5-NO-41-24VAC-DC
0 4 PL e SIL 3 ESR5-NO-21-24VAC-DC
0 4 PL e SIL 3 ESR5-NO-31-24VAC-DC
0 4 PL e SIL 3 ESR5-NO-31-230VAC
0 4 PL e SIL 3 ESR5-NO-31-AC-DC
0/1 4 PL e SIL 3 ESR5-NV3-30
0 4 PL e SIL 3 ESR5-NZ-21-24VAC-DC
0 4 PL e SIL 3 ESR5-NE-51-24VAC-DC
1 5 PL d SIL 2 ESR5-VE3-42

NOTES:
(1) Laser scanners or light curtains with OSSD outputs.
(2) All main units can also be reset automatically or manually.

Dimensions

Eaton Moeller ESR5 Safety Relay Dimensions

ESR5 PDF

 

Download PDF Button

Control Relays and Timers
Note: Supplement to Volume 7—Motor Controls, Logic and Connectivity,
CA08100008E, Tab 40.
[613 KB] [03.2011]PDF Icon
 

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