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Phoenix ContactOfficial Distributor

By Phoenix Contact

SKU
MPN
PSR-MS55-1NO-1DO-24DC-SC
Weight
0.089 kg
This product is Not Cancellable/Not Returnable
Series PSR-MS

PSR-MS55-1NO-1DO-24DC-SC - Safety relays

Safety relay for monitoring non-equivalent signal generators up to SIL 3, Cat. 4, PL e, 2-channel, non-equivalent operation, manual, monitored start, 1 enabling current path, US = 24 V DC, fixed screw terminal block

  • Up to Cat. 4/PL e in accordance with EN ISO 13849-1, SIL 3 in accordance with EN IEC 62061
  • Low housing width of just 6.8 mm
  • Two-channel non-equivalent control
  • 1 enabling current path, 1 digital signal output
  • Manual and monitored activation
Technical Specifications

Product properties

Product familyPSRmini
ApplicationAntivalent signal generator
ApplicationSafety door
ApplicationSolenoid switch
Relay typeElectromechanical relay with force-guided contacts in accordance with IEC/EN 61810-3

Times

Typical response time< 175 ms
Typ. starting time with Us< 250 ms (when controlled via A1)
Typical release time< 20 ms (when controlled via A1 or S12 and S13.)
Recovery time< 500 ms

Electrical properties

Maximum power dissipation for nominal condition3 W ()
Nominal operating mode100% operating factor

Air clearances and creepage distances between the power circuits

Rated Insulation Voltage250 V AC
Rated Insulation Voltage250 V AC
Rated surge voltage/insulationSafe isolation, reinforced insulation 6 kV between input circuit and enabling current pathBasic insulation 4 kV between all current paths and housing

Supply

DesignationA1/A2
Rated control circuit supply voltage US20.4 V DC ... 26.4 V DC
Rated control circuit supply voltage US24 V DC -15 % / +10 %
Rated control supply current IStyp. 42 mA
Power consumption at UStyp. 1 W
Inrush Current4.5 A (Δt < 120 µs at Us)
Filter time1 ms (at A1 in the event of voltage dips at Us)
Protective circuitSurge protection; Suppressor diode
Protective circuitProtection against polarity reversal for rated control circuit supply voltage

Digital: Sensor circuit (S12, S13)

Description of the inputsafety-related sensor inputs
Input voltage range "0" signal0 V DC ... 5 V DC (for safe Off; at S12)
Input current range "0" signal0 mA ... 2 mA (for safe Off; at S12)
Inrush Current< 20 mA (with Us/Ix to S12)
Inrush Current< 20 mA (with Us/Ix to S13)
Filter timemax. 1.5 ms (at S12, S13; test pulse width)
Filter timemin. 7.5 ms (at S12, S13; test pulse rate)
Filter timeTest pulse rate = 5 x Test pulse width
Max. permissible overall conductor resistance150 Ω
Current consumption< 5 mA (with Us/Ix to S12)
Current consumption< 5 mA (with Us/Ix to S13)

Digital: Start circuit (S34)

Description of the inputnon-safety-related
Number of Inputs1
Input voltage range "1" signal20.4 V DC ... 26.4 V DC
Inrush Current< 10 mA
Max. permissible overall conductor resistance150 Ω
Protective circuitSuppressor diode
Current consumption< 10 mA

Relay: Enabling current path (13/14)

Output descriptionsafety-related N/O contacts
Number of Outputs1 (undelayed)
Contact switching type1 enabling current path
Contact MaterialAgSnO2
Switching voltagemin. 12 V AC/DC
Switching voltagemax. 250 V AC/DC (Observe the load curve)
Switching capacitymin. 60 mW
Inrush Currentmin. 3 mA
Inrush Currentmax. 6 A
Limiting Continuous Current6 A (observe derating)
Sq. Total current36 A2 (observe derating)
Switching frequencymax. 0.5 Hz
Mechanical service life10x 106 cycles
Output fuse6 A gL/gG (N/O contact)
Output fuse4 A gL/gG (for low-demand applications)

Signal: M1

Output descriptionnon-safety-related
Number of Outputs1 (digital, PNP)
Voltage22 V DC (Us - 2 V)
Currentmax. 100 mA
Maximum Inrush Current500 mA (Δt = 1 ms at Us)
Short-circuit protectionno

Connection technology

pluggableno

Conductor connection

Connection MethodScrew connection
Conductor cross section rigid0.2 mm² ... 2.5 mm²
Conductor cross section flexible0.2 mm² ... 2.5 mm²
Conductor cross-section AWG26 ... 12
Stripping length12 mm
Screw threadM3
Tightening torque0.5 Nm ... 0.6 Nm

Signaling

Status display2 x green LEDs
Operating voltage display1 x green LED

Dimensions

Width6.8 mm
Height93.1 mm
Depth102.5 mm

Material specifications

Color (Housing)yellow (RAL 1018)
Housing MaterialPBT

Safety data

Stop category0

Safety data: EN ISO 13849

Category4
Performance level (PL)e (4 A DC13; 5 A AC15; 8760 switching cycles/year)

Safety data: IEC 61508 - High demand

Safety Integrity Level (SIL)3

Safety data: IEC 61508 - Low demand

Safety Integrity Level (SIL)3

Safety data: EN IEC 62061

Safety Integrity Level (SIL)3

Ambient conditions

Degree of ProtectionIP20
Min. degree of protection of inst. locationIP54
Ambient Temperature (Operation)-40 °C ... 60 °C (observe derating)
Ambient temperature (storage/transport)-40 °C ... 85 °C
Maximum altitude≤ 2000 m (Above sea level)
Max. permissible humidity (storage/transport)75 % (on average, 85% infrequently, non-condensing)
Max. permissible relative humidity (operation)75 % (on average, 85% infrequently, non-condensing)
Shock15g
Vibration (Operation)10 Hz ... 150 Hz, 2g

CE

CertificateCE-compliant

Air clearances and creepage distances between the power circuits

Standards/regulationsEN 60947-1

Mounting

Mounting TypeDIN rail mounting
Mounting Positionvertical or horizontal
Accessories

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Additional Information

Pack Size1
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