Safety relay ESM-BT.., 4 safety contacts, time-delay, cat. 4
- Use up to category 4 according to EN ISO 13849-1
- LED status indicators
- 1-channel or 2-channel control
- 4 redundant safety contacts of which 3 contacts time-delayed
- Delay time range 1 s–30 s
- Short circuit and earth fault/ground fault monitoring
Description
Relay outputs
The outputs are electrically decoupled and of redundant design.
Connection options
By using suitable wiring, the following functions can be selected:
- Relay start with automatic start, a start button or a monitored 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 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.
Time-delayed shutdown
The release time for the time-delay contacts can be set as required using a potentiometer on the safety relay.
Dimensional drawings
Connection examples
Technical data
Approvals
Operating and display elements
| LED display | 4 status displays (green) for relays K1, K2, K3, K4 |
Electrical connection values
| 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 Ui | 250 V |
| Rated supply frequency | 50 ... 60 Hz |
| Rated impulse withstand voltage Uimp | 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 UB = 24 V DC | |
| Degree of contamination (external, according to EN 60947-1) | 2 |
Mechanical values and environment
| 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 |
Characteristic values according to EN ISO 13849-1 and EN IEC 62061
| 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.) |
Miscellaneous
| in compliance with | EN ISO 13849-1: 2015; EN 62061: 2005 + AC 2010 + A1: 2013 + A2: 2015; EN50581: 2012 (RoHS) |
Downloads
Complete package
Download all important documents with a single click.
Content:
- 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
Single Documents
Declarations of conformity
EU-Konformitätserklärung
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EU-Konformitätserklärung
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EDC2090791
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0,2 MB
UKCA-Konformitätserklärung
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UKCA-Konformitätserklärung
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EDC20001502
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0,1 MB
Instructions
Operating Instructions Safety Relay ESM-BT4..
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Operating Instructions Safety Relay ESM-BT4..
Mode d’emploi Unité de base ESM-BT4..
Manual de instrucciones Módulo básico ESM-BT4..
Betriebsanleitung Basisgerät ESM-BT4..
Mode d’emploi Unité de base ESM-BT4..
Manual de instrucciones Módulo básico ESM-BT4..
Betriebsanleitung Basisgerät ESM-BT4..
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2109074
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04/24
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1,5 MB
Betriebsanleitung Basisgerät ESM-BT4..
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2109074
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04/24
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0,4 MB
Other Documents
Approvals and certificates
CCC
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CCC
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20001753
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0,0 MB
c UL us
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c UL us
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1,0 MB
c UL us
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0,2 MB
Ordering data
| Ordernumber | 090818 |
| Item designation | ESM-BT401 |
| Gross weight | 0,254kg |
| Customs tariff number | 85364110 |
| ECLASS | 27-37-18-19 Device for monitoring of safety-related circuits |
