| Rated insulation voltage Ui: |
250 V |
| Switching current: |
min.5 mAat 24V |
| Degree of protection: |
IP20 |
| Ambient temperature: |
-15 … 40 °C |
| Item designation: |
ESM-BT421 |
| Gross weight: |
0,253kg |
| ECLASS: |
27-37-18-19 Device for monitoring of safety-related circuits |
| Degree of contamination (external, according to EN 60947-1): |
2 |
| Contact material: |
AgSnO2 |
| Mounting method: |
Mounting rail 35mm according to DIN EN 60715 TH35 |
| Connection: |
Connection terminals |
| Number of safety contacts: |
4 |
| Overvoltage category according to IEC EN 60664-1: |
3 |
| Connection Cross-section: |
0,14 … 2,5 mm²(Connection terminal (size)) |
| Control Current: |
190 mA |
| LED Indicator: |
4 status displays (green) for relays K1, K2, K3, K4 |
| Breaking capacity according to UL: |
8A 250V AC / 3A 24V DC per contact |
| In compliance with: |
EN ISO 13849-1 2015; EN 62061 2005 + AC 2010 + A1 2013 + A2 2015; EN 50581 2012 (RoHS) |
| 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: |
4.22 x 10-8(This value is dependent on the number of switching cycles and the switching current.) |
| Mission time: |
20 y(This value is dependent on the number of switching cycles and the switching current.) |
| Switching characteristics: |
3 safety contacts non-delayed, 1 safety contact time-delayed(Contact switching behavior n.d. non-delayed d. delayed) |
| Drop-out delay at 24V AC: |
max.20 msEmergency stop |
| Drop-out delay at 24V DC: |
max.30 msEmergency stop |
| Rated Supply Frequency: |
50 … 60 Hz |
| Cumulative current: |
max.15 AFor all contacts(Cumulative current at an ambient temperature of T= 20° C 9A ;T= 30° C 3A ; T= 40° C 1A. If these currents are exceeded, a spacing of 5 mm between the devices must be observed.) |
