Euchner ESM Technical Data
Technical Data Safety Relay ESM
Connection ESM-ES3..
Parameter Value Unit
Operating voltage ESM-ES301 24 ± 10%
1)
V AC/DC
ESM-ES302 115 ± 10% V AC
ESM-ES303 230 ± 10% V AC
Reverse polarity protection On ESM-ES301
Rated supply frequency 50 ... 60 Hz
Power consumption Approx. 4 VA / 2 W
Control voltage at inputs 18.6 … 26 V DC
Control cable length (cross-section 0.75 mm²) Max. 1000 m
External contact fuse (safety circuit) acc. to EN IEC 60269-1 10 A gG (T4A / F6A)
Test voltage (control voltage/contacts) 2.5 kV
Rated impulse withstand voltage,
Leakage path and air gaps acc. to DIN VDE 0110-1
4 kV
Rated insulation voltage 250 V
Over voltage category according to DIN VDE 0110-1 3
Cumulative current on all contacts acc. to
Max. 10.5 A
Safety contacts 3 NO contacts (redundant)
Min. switching current at 24 V DC 20 mA
Switching voltage max. 50 V DC
250 V AC
Breaking capacity acc. to
Utilization category
2)
According to EN 60947-5-1
(per contact)
AC-12 250 V 6 A
AC-15 230 V 4 A
DC-12 24 V 1.25 A
6 A 250 V AC
2 A 24 V DC
U
e
I
e
3)
3)
Σ I
10.5 A
e
DC-13 24 V 2 A
LED indicators 2, status display for relays K1 and K2
Auxiliary contact 1 NC contact
Continuous current max. 500
4)
mA
Switching voltage max. 24 V AC/DC
Reliability values acc. to EN ISO 13849-1
Category 4
Performance Level PL e
1) 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.
2) See page 26 for information about the utilization category.
3) With Ohmic load.
4) As monitoring contact for safety relay.
U
= switching voltage Ie = max. switching current per contact Σ Ie = max. switching current on all safety contacts (cumulative current)
e
24
Subject to technical modifications; no responsibility is accepted for the accuracy of this information.
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