EUCHNER – More than safety.
EUCHNER – More than safety.

ESM-2H201 (Rend. sz. 085620)

Safety relay ESM-2H.. , type IIIc evaluation unit for two-hand control

  • Use up to category 4 according to EN ISO 13849-1
  • Requirement level IIIC according to EN 574
  • LED status indicators
  • Operation by 2-hand control
  • 2 redundant safety contacts
  • Short-circuit and earth fault/ground fault monitoring can be selected
ESM-2H201 (Rend. sz. 085620)


Relay outputs

The outputs are electrically decoupled and of redundant design.


  • Two buttons each with one normally closed contact and one normally open contact that are monitored for simultaneity according to EN ISO 13851. In this way, a high level of protection against tampering is provided.
  • Short circuit monitoring to detect short circuits between the connecting cables and to shut down the outputs or prevent relay starting if necessary
  • Earth fault/ground fault monitoring to detect short circuits between a connecting cable and earth or ground and to shut down the outputs or prevent relay starting if necessary.

Connection options

By using suitable wiring, the following function can be selected:

  • Monitoring of downstream relays or contactors.
Dimension drawing
Dimension drawing
Block diagram
Block diagram

Dimension drawings

Dimension drawings

Connection examples

Connection examples

Műszaki adatok


Zulassung EACZulassung TÜV Rheinland, BMPB mit ZG: Product Safety, Functional SafetyZulassung c_UL_us LISTED

Mechanikai értékek és környezet

Housing material
Housing Polyamide PA6.6
Net 0,23 kg
Ambient temperature
At UB = 24V AC -15 ... 40 °C
At UB = 24V DC -15 ... 60 °C
Degree of protection IP20
Mechanical life
operating cycles 10 x 106
Contact material AgSnO2
Mounting method Mounting rail 35mm according to DIN EN 60715 TH35
Connection Connection terminals
Length of control cable
With conductor cross-section 0.75mm2 1000 m
Safety contacts 13/14, 23/24
Number of safety contacts 2

Elektromos csatlakoztatási értékek

Operating voltage
AC/DC 24 V -10% ... +10% (All the electrical connections must either be isolated from the mains supply by a safety transformer according to EN 61558-2-6 with limited output voltage in the event of a fault, or by other equivalent isolation measures.)
Rated insulation voltage Ui 250 V
Rated impulse withstand voltage Uimp
Leakage path/air gaps 4 kV
Overvoltage category according to IEC EN 60664-1 3
Reverse polarity protection
On version UB =24V DC
Connection rating
at 24V DC 1,5 W
Degree of contamination (external, according to EN 60947-1) 2
Connection cross-section 0,14 ... 2,5 mm² (Connection terminal (size))
Test voltage
Control system/contacts 2,5 kV
Control voltage
On S12-S13 and on S22 and S23 24 V
Control current
Both push buttons 40 mA 2x
LED indicator 2 status displays (green) for relays K1 and K2
Safety contacts 13/14, 23/24
Type of output
NO Relay contacts, floating and positively driven (redundant) (Positively driven relay according to EN 50205)
Switching voltage
AC max.250 V
DC max.24 V
Switching current min.20 mA at 24V
External contact fuses (safety circuit) according to IEC 60269-1 10A gG
Utilization category acc. to EN 60947-5-1
AC-15 3A, 250V
DC-13 3A, 24V
AC-12 6A ohmic load, 250V (6 operating cycles/min.)
DC-12 6A ohmic load, 24V (6 operating cycles/min.)
Breaking capacity according to UL 6A 250V AC / 2A 24V DC
Delay time
After operation of the push buttons max.0,02 s Response delay time
Release time max.0,02 s
Synchronization time max.0,5 s


In compliance with EN 60947-5-1: 2004+A1: 2009; EN ISO 13849-1: 2015; EN 62061: 2005 + AC: 2010 + A1: 2013 + A2: 2015; EN 50581: 2012 (RoHS)

Megbízhatósági értékek az EN ISO 13849-1 szerint

Performance Level PL e (This value is dependent on the number of switching cycles and the switching current.)
Category 4 (This value is dependent on the number of switching cycles and the switching current.)
PFHD 1.2 x 10-8 (This value is dependent on the number of switching cycles and the switching current.)
Number of switching cycles
≤ 3 A at 24 V DC max.22500 1/Jahr
≤ 1 A at 24 V DC max.100000 1/Jahr
≤ 0.1 A at 24 V DC max.400000 1/Jahr
Mission time 20 y (This value is dependent on the number of switching cycles and the switching current.)


Complete package

Download all important documents with a single click.


  • The operating instructions and any additions to the operating instructions or brief instructions
  • Any data sheets to supplement the operating instructions
  • The declaration of conformity
Download complete package (ZIP, 0,7 MB)

Single Documents

Other Documents

Ordering data

Rend. sz. 085620
Articlename ESM-2H201
Weight 0,213kg
GTIN 4047048006539
Customsclass 85364110
ECLASS 27-37-18-19 Gerät zur Überwachung von sicherheitsgerichteten Stromkreisen

Műszaki támogatás

Műszaki támogatás
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EUCHNER Magyarország Kft.
+36 1919 0855