Safety device - PSR-MM35-1NO-1DO-24DC-SC

Safety relay module for sensor-free speed and speed range monitoring up to SIL 3, Cat. 4, PL e, 2-channel evaluation of the rotating field of AC and three-phase motors, plug-in screw terminal block, width: 12.5 mm



Product type Safety device
Application Over-speed safety relay
Relay type Electromechanical relay with force-guided contacts in accordance with IEC/EN 61810-3
Insulation characteristics
Overvoltage category II (600 V)
III (300 V)
Typical response time 70 ms (For Us autostart)
70 ms (For Us manual, monitored start)
Delay time range 0 s ... 2 s ±10 % (Switch-off delay)
0 s ... 10 s ±10 % (Switch-on delay)
Restart time < 5 s (Boot time)

Maximum power dissipation for nominal condition 3 W (At US = 26.4 V, IL² = 6 A²)
Nominal operating mode 100% operating factor
Interfaces Without sensor
Designation A1/A2
Rated control circuit supply voltage US 20.4 V DC ... 26.4 V DC
Rated control circuit supply voltage US 24 V DC -15 % / +10 % (provide external protection)
Rated control supply current IS 46 mA
Power consumption at US 1.1 W
Filter time 20 ms (in the event of voltage dips at Us)
Protective circuit Surge protection; Suppressor diode
Rated insulation voltage 300 V (ÜKAT III)
600 V (ÜKAT II)
Rated surge voltage/insulation Basic insulation 4 kV between all current paths and housing
Safe isolation, reinforced insulation 6 kV:
between 13/14 and A1/A2, S34, MO
Safe isolation, reinforced insulation 8 kV:
between L1/L2/L3 and A1, A2, S34, MO
between L1/L2/L3 and 13/14

Digital: Digital input
Description of the input IEC 61131-2 type 1
Number of inputs 1 (Non-safety-related parameterizable acknowledgment input: S34)
Input voltage range "0" signal 0 V DC ... 5 V DC
Input voltage range "1" signal 15 V DC ... 30 V DC
Input current range "0" signal 0 mA ... 0.5 mA
Filter time 20 ms (Test pulse width of low test pulses)
Max. permissible overall conductor resistance 500 Ω (Input and reset circuit at US)
Protective circuit 33 V suppressor diode
Current consumption typ. 3 mA (at 24 V)
Input name Sensor inputs
Number of inputs 3 (Safety-related sensor inputs: L1 , L2 , L3)
Input voltage range "1" signal 90 V AC ... 690 V AC
Precision ± 1 %
Limit frequency min. 0.5 Hz
max. 1200 Hz
Current consumption 0.35 mA

Relay: Enabling current path
Output description 2 N/O contacts in series, floating
Number of outputs 1 (safety-related N/O contacts: 13/14)
Contact type 1 enabling current path
Contact material AgSnO2
Switching voltage min. 12 V AC/DC
max. 250 V AC/DC
Switching capacity min. 60 mW
Inrush current min. 3 mA
max. 6 A
Switching capacity according to IEC 60947-5-1 4 A (DC13, 24 V)
5 A (AC15, 250 V)
Limiting continuous current 6 A
Sq. Total current 36 A2 (observe derating)
Switching frequency max. 0.5 Hz
Mechanical service life 10x 106 cycles
Output fuse 6 A gL/gG
Output description PNP
Number of outputs 1 (Non-safety-related signal output: MO)
Voltage 23 V DC (US - 1 V)
Current max. 100 mA
Maximum inrush current 500 mA
Switching frequency 0.5 Hz (ohmic)
Protective circuit Reverse polarity protection 33 V suppressor diode
Short-circuit protection Yes

Connection technology
pluggable yes
Conductor connection
Connection method Screw connection
Conductor cross section solid 0.2 mm² ... 2.5 mm²
Conductor cross-section AWG 24 ... 12
Screw thread M3
Torque 0.5 Nm ... 0.6 Nm

Status display 1 x green, red LED (OUT)
Operating voltage display 1 x green, red LED (PWR)
Indication Red LED, (flashes in the event of short-circuits or overload)

Width 12.5 mm
Height 112.2 mm
Depth 114.5 mm

Housing material Polyamide
Housing color yellow

Safety data
Stop category 0
Safety data: EN ISO 13849
Category 4
Performance level (PL) e
Safety data: IEC 61508 - High demand
Equipment type Type B
Safety Integrity Level (SIL) 3
Probability of a hazardous failure per hour (PFHD) 5.72 x 10-9 ()
Proof test interval 240 Months
Duration of use 240 Months
Safety data: IEC 61508 - Low demand
Equipment type Type A
Safety Integrity Level (SIL) 3

Ambient conditions
Degree of protection IP20
Min. degree of protection of inst. location IP54
Ambient temperature (operation) -20 °C ... 55 °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)
Shock 15g
Vibration (operation) 10 Hz ... 150 Hz, 2g

Certificate CE-compliant

Air clearances and creepage distances between the power circuits
Standards/regulations EN 60947-1

Mounting type DIN rail mounting
Assembly instructions See derating curve
Mounting position vertical or horizontal

Tuotenumero 1249515
Pakkausyksikkö 1 Kappaletta
Vähimmäistilausmäärä 1 Kappaletta
Tuoteavain DNA242
Tuotekoodi DNA242
GTIN 4063151353643
Paino kappaletta kohti (sis. pakkauksen) 156,2 g
Paino kappaletta kohti (ilman pakkausta) 148 g
Tullitariffinumero 90328900
Alkuperämaa DE


ECLASS-9.0 27371811
ECLASS-10.0.1 27371811
ECLASS-11.0 27371811


ETIM 8.0 EC001448


UNSPSC 21.0 39122300


Approval ID: RU*-DE*B.00606/20

Functional Safety

Approval ID: 01/205/5879.00/21

UL Listed

Approval ID: FILE E 140324

cUL Listed

Approval ID: FILE E 140324

cULus Listed

REACh SVHC Lead 7439-92-1
China RoHS Environmentally Friendly Use Period = 50 years
For information on hazardous substances, refer to the manufacturer’s declaration available under “Downloads”

Yhteensopivat tuotteet


Safe motion monitoring based on sensor-free rotating field measurement of the drive
Maximum system availability, robust measuring procedure in the face of interference factors such as shock, vibration, and EMI
Integrated safety functions: SLS (Safe Limited Speed), SSM (Safe Speed Monitor), SSR (Safe Speed Range)
Easy parameterization and online monitoring with the PSRmotion software, which can be downloaded free of charge
1 enabling current path, 1 parameterizable digital signal output
Up to Cat. 4/PL e in accordance with EN ISO 13849-1, SIL 3 in accordance with IEC 62061