Phoenix PSR-MS20-1NO-1DO-24DC-SC-safety relay 2904950, safety relay for emergency stop and safety door, meets SIL 1, Cat. 1,PL c, according to different applications, can meet SIL 3, Cat. 4,PL e, single channel operation, automatic start, 1 start current path, Us = 24V DC, fixed screw connector
Product Type
safety relay
Product Series
PSRmini
Application
Emergency stop button
safety door
electromagnetic switch
control
single channel
Relay Model
Electromechanical relay with mechanical interlocking contacts according to IEC/EN 61810-3
insulation characteristics
Overvoltage Level
III
pollution level
2
Typical Response Time
< 175 ms
Typical startup time (Us )
< 250 ms (when controlled via A1)
Typical release time
< 20 ms (when controlled via A1 or S12)
restart time
< 1 s (start-up time)
Recovery Time
< 500 ms
Electrical characteristics
rated conditions
3W (US = 26.4 V, IL ² = 36 A²,PTotal max = 1.2W +1.8 W)
Rated operating mode
100% Eligible
Rated insulation voltage
250V AC
rated overvoltage/insulation
input circuit and normally open safety contact output
Power
Name
A1/A2
Rated control circuit supply voltage US
20.4V DC ... 26.4V DC
Rated control circuit supply voltage US
24V DC -15 % / +10%
Rated control supply current IS
Typical 42 mA
US
Typical 1W
Impulse current
4.5 A (Δt < 120 µs Us )
filter time
1 ms (at A1, at the voltage dip Us )
protection circuit
Surge protection; Suppressor diode
series protection to prevent polarity reversal
input data
digital quantity: sensor circuit (S12)
Input Description
safety-related sensor inputs
Input Quantity
1
input voltage range, "0" signal
0V DC ... 5V DC (for safety shutdown; at S12)
input voltage range, "1" signal
20.4V DC ... 26.4V DC
Input current range "0" signal
0 mA ... 2 mA (for safety shutdown; at S12)
Impulse current
< 20 mA (US )
filter time
max. 1.5 ms (test pulse width of low test pulse)
test pulse rate = 5 x test pulse width
Allowable Total Conductor Resistance
150 Ω
protection circuit
Suppressor Diode
power consumption
< 5 mA (US )
digital quantity: start circuit (S35)
Input Description
non-safety related
Input Quantity
1
input voltage range, "1" signal
20.4V DC ... 26.4V DC
Impulse current
< 10 mA
Allowable Total Conductor Resistance
150 Ω
protection circuit
Suppressor Diode
power consumption
< 10 mA
Output Data
relay: starting current path (13/14)
Output Description
safety-related normally open contacts
outputs
1 (non-delayed)
Contact Type
1 starting current path
Contact Material
AgSnO2
Switching voltage
minimum 12V AC/DC
