ESM-BT401 (Sip. No. 090818)

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Safety relay ESM-BT.., 4 safety contacts, time-delay, cat. 4

The outputs are electrically decoupled and of redundant design.

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

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 the connecting cables and earth or ground and to shut down the outputs or prevent relay starting if necessary.

The release time for the time-delay contacts can be set as required using a potentiometer on the safety relay.

LED display	4 status displays (green) for relays K1, K2, K3, K4

LED display

4 status displays (green) for relays K1, K2, K3, K4

Drop-out delay at 24 V AC/ DC	max. 20 ms Emergency stop
Power consumption
at 24 V DC	4.7 W
Power consumption (apparent power)
at 24 V AC	5.3 VA
Connection cross section	0.14 ... 2.5 mm² (Connection terminals (size))
Rated insulation voltage U_i	250 V
Rated supply frequency	50 ... 60 Hz
Rated impulse withstand voltage U_imp	4 kV
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 insulation measures.)
Test voltage
Control system/contacts	2.5 kV
Control voltage
on S11	18.6 ... 26 V
Control current	190 mA
Overvoltage category according to IEC EN 60664-1	3
Reverse polarity protection
On version U_B = 24 V DC
Degree of contamination (external, according to EN 60947-1)	2

Connection type	Connection terminals
Control cable length
with conductor cross-section 0.75 mm²	1000 m
Mechanical life
Operating cycles	10 x 10⁶
Mounting type	TH 35 mounting rail (EN IEC 60715)
Degree of protection	IP20
Ambient temperature	-15 ... +40 °C
Material
Housing	Polyamide PA6.6
Contact	AgSnO₂

Number of switching cycles
≤ 2 A at 24 V DC	max. 100000 1/y
≤ 1 A at 24 V DC	max. 350000 1/y
≤ 0.1 A at 24 V DC	max. 500000 1/y
Mission time	20 y (This value is dependent on the number of switching cycles and the switching current.)

in compliance with	EN ISO 13849-1: 2015; EN 62061: 2005 + AC 2010 + A1: 2013 + A2: 2015; EN50581: 2012 (RoHS)

in compliance with

EN ISO 13849-1: 2015; EN 62061: 2005 + AC 2010 + A1: 2013 + A2: 2015; EN50581: 2012 (RoHS)

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