• ESM-BA.. Usage up to category 4 according to EN ISO 13849-1
• LED status indicators
• 1-channel or 2-channel control
• 3 redundant safety contacts
• 1 auxiliary contact (monitoring contact)
• Short circuit and earth fault/ground fault monitoring

Relay outputsThe outputs are electrically decoupled and of redundant design. Connection optionsBy using suitable wiring the following functions can be selected:

• Relay start with automatic start or a start button.
• Monitoring of downstream relays or contactors
• Simultaneity monitoring to monitor safety components over time.
• Relay start using a monitored start button.
• Short circuit monitoring to detect short circuits between the connection cables and to shut down the outputs or prevent relay starting if necessary.
• Earth fault/ground fault monitoring to detect short circuits between the connection cables and earth or ground and to shut down the outputs or prevent relay starting if necessary.

Auxiliary contactsThe relays in the series ESM-BA3.. are available with electrically separate normally closed contacts and auxiliary contacts. Connection terminalsOptionally, the ESM-BA... devices are also available as version with plug-in connection terminals. Dimension drawing Wiring diagram Dimension drawingWiring diagram Technical dataApprovals Mechanical values and environment

Housing material	Polyamide PA6.6
Weight
Net	0,23 kg
Ambient temperature	-15 ... 40 °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, 33/34
Number of safety contacts	3
	Auxiliary contacts 41/42
Number of auxiliary contacts	1

Electrical connection ratings

Operating voltage
AC/DC	24 V -10% ... +10%
Rated insulation voltage Ui
AC	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
Rated supply frequency	50 ... 60 Hz
Power consumption
at 24 V DC	2,3 W
Degree of contamination (external, according to EN 60947-1)	2
Connection cross-section	0,14 ... 2,5 mm? Connection terminal (size)
Test voltage
Control system/contacts	2,5 kV
Control voltage
On S11	24 V 18,6 ... 26 V Start button
Control current
S11...S14	60 mA
LED indicator	2 status displays (green) for relays K1 and K2
	Auxiliary contacts 41/42
Type of output
NC	Relay contacts, floating
Utilization category according to EN 60947-5-1
AC-12	2A , 250V
DC-12	2A, 50V
Breaking capacity according to UL	2A, 250V AC / 2A, 24V DC per contact
	Safety contacts 13/14, 23/24, 33/34
Type of output
NO	Relay contacts, floating and positively driven (redundant)
Switching voltage
AC	max.250 V
DC	max.24 V
Switching current
at 24V	min.5 mA
Cumulative current	max.15 A For all contacts
Fusing
External contact fuses (safety circuit) according to IEC 60269-1	10A gG (T6A / F8A)
Utilization category according to EN 60947-5-1
AC-15	3A , 250V
DC-13	3A , 24V
AC-12	8A ohmic load, 250V
DC-12	8A ohmic load, 50V
Breaking capacity according to UL	8A 250V AC / 3A 24V DC per contact

Other

In compliance with

EN 60439-1: 1999 + A1: 2004, EN 60947-1: 2007, EN 60947-5-1: 2004, EN 60947-7-1: 2002, EN 61000-6-2: 2005, EN 61000-6-3: 2007, EN ISO 13849-1: 2015, EN 62061: 2005 + AC: 2010 + A1: 2013 + A2: 2015, EN 60204-1: 2007

Reliability values according to EN ISO 13849-1

Performance Level	PL e
Category	4
PFHD	1.2 x 10-8
Number of switching cycles
? 1 A at 24 V DC	max.350000 1/Jahr
? 2 A at 24 V DC	max.100000 1/Jahr
? 0.1 A at 24 V DC	max.500000 1/Jahr
Mission time	20 y

Euchner Safety Relay

• Delivery of spare parts and industrial equipment throughout the USA by Fedex transport company.
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• Directly from stock and on order.