Digital Relay Output Module Characteristics
The BMXSRA0405 safety digital relay output module presents the following performance characteristics:
Characteristic |
Value |
|
|---|---|---|
Rated switching Voltage / Current |
24 VDC 5A (Resistive load) |
|
240 VAC 5A (cos Φ =1) |
||
Current max for contacts on resistive load |
5A (DC12 and AC12) |
|
Current max for contacts on inductive load |
4A DC13 and 3A AC15 |
|
Operating temperature |
0 to 60°C |
|
Type external actuator Power-supply |
Overvoltage category II |
|
Min switching load |
5 VDC 10 mA |
|
Max switching load |
264 VAC 30 VDC |
|
Switching time |
OFF→ ON (operate) |
12 ms typical |
ON →OFF (release) |
6 ms typical |
|
Life (Based on Elesta relay SIF3) |
Mechanical |
10 million cycles or more |
Electrical |
DC12 24Vdc / 5A → 300.000 cycles |
|
DC12 24Vdc / 2A →500.000 cycles |
||
DC12 24Vdc / 1A→1.000.000 cycles |
||
L/R=40ms |
DC13 24Vdc (0.1Hz) / 4A→30.000 cycles |
|
DC13 24Vdc (0.1Hz) / 2A→50.000 cycles |
||
DC13 24Vdc (0.1Hz) / 1A→80.000 cycles |
||
– |
AC12 250Vac / 5A→70.000 cycles |
|
AC12 250Vac / 2A→30.000 cycles |
||
AC12 250Vac / 1A→250.000 cycles |
||
– |
AC15 250Vac / 3A→40.000 cycles |
|
AC15 250Vac / 2A→80.000 cycles |
||
AC15 250Vac / 1A→80.000 cycles |
||
Built-in Protection |
Against overloads and short-circuits |
None - a fast blow fuse must be fitted to each channel or group of channels. |
Against inductive overvoltages in ~ |
None - a RC circuit or MOV peak limiter (ZNO) suitable for the voltage must be fitted in parallel across the terminals of each preactuator. |
|
Against inductive overvoltages in = |
None - a discharge diode must be fitted across the terminals of each preactuator. |
|
Max switching frequency |
5 cycles by second |
|
Dielectric maximum voltage between channels |
3000 V rms 50/60Hz for 1 min |
|
Dielectric maximum voltage between channels and backplane |
3000 V rms 50/60Hz for 1 min |
|
Reinforced insulation standard |
3000 Vac insulation between the process side (relay contact) and the backplane |
|
Insulation resistance |
>10MW or more by insulation resistance tester |
|
Reliability: MTTF at Tamb = 25°C |
36.9 years |
|
Protection degree |
IP20 |
|
Consumption 3.3V |
Typical |
215 mA |
Maximum |
240 mA |
|
24V relay internal current consumption |
Typical |
95 mA |
Maximum |
130 mA |
|
Dissipated power |
4 energized relays |
3 W Typical; 3.9 W maximum |