PSR-MS25-1NO-1DO-24DC-SC - Safety relays - 2904951

Notes

Note on application
Note on application	Only for industrial use

Product properties

Product type	Safety relays
Product family	PSRmini
Application	Emergency stop
	Safety door
	Magnetic switch
Control	1-channel
Relay type	Electromechanical relay with force-guided contacts in accordance with IEC/EN 61810-3
Insulation characteristics
Overvoltage category	III
Degree of pollution	2
Times
Typical response time	< 175 ms
Typical release time	< 20 ms (when controlled via A1 or S12)
Restart time	< 1 s (Boot time)
Recovery time	< 500 ms

Electrical properties

Maximum power dissipation for nominal condition	3 W (U_S = 26.4 V, I_L² = 36 A², P_Total max = 1.2 W + 1.8 W)
Nominal operating mode	100% operating factor
Rated insulation voltage	250 V AC
Rated surge voltage/insulation	Safe isolation, reinforced insulation 6 kV between input circuit and enabling current path Basic insulation 4 kV between all current paths and housing
Supply
Designation	A1/A2
Rated control circuit supply voltage U_S	20.4 V DC ... 26.4 V DC
Rated control circuit supply voltage U_S	24 V DC -15 % / +10 %
Rated control supply current I_S	typ. 42 mA
Power consumption at U_S	typ. 1 W
Inrush current	4.5 A (Δt < 120 µs at U_s)
Filter time	1 ms (at A1 in the event of voltage dips at U_s)
Protective circuit	Surge protection; Suppressor diode
Protective circuit		Serial protection against polarity reversal

Input data

Digital: Sensor circuit (S12)
Description of the input	safety-related sensor inputs
Number of inputs	1
Input voltage range "0" signal	0 V DC ... 5 V DC (for safe Off; at S12)
Input voltage range "1" signal	20.4 V DC ... 26.4 V DC
Input current range "0" signal	0 mA ... 2 mA (for safe Off; at S12)
Inrush current	< 20 mA (at U_S)
Filter time	max. 1.5 ms (Test pulse width of low test pulses)
Filter time		Test pulse rate = 5 x Test pulse width
Max. permissible overall conductor resistance	150 Ω
Protective circuit	Suppressor diode
Current consumption	< 5 mA (at U_S)
Digital: Start circuit (S34)
Description of the input	non-safety-related
Number of inputs	1
Input voltage range "1" signal	20.4 V DC ... 26.4 V DC
Inrush current	< 10 mA
Max. permissible overall conductor resistance	150 Ω
Protective circuit	Suppressor diode
Current consumption	< 10 mA

Output data

Relay: Enabling current path (13/14)
Output description	safety-related N/O contacts
Number of outputs	1 (undelayed)
Contact switching type	1 enabling current path
Contact material	AgSnO₂
Switching voltage	min. 12 V AC/DC
Switching voltage		max. 250 V AC/DC (Observe the load curve)
Switching capacity	min. 60 mW
Inrush current	min. 3 mA
Inrush current		max. 6 A
Limiting continuous current	6 A
Sq. Total current	36 A² (observe derating)
Switching frequency	max. 0.1 Hz
Mechanical service life	10x 10⁶ cycles
Output fuse	6 A gL/gG (N/O contact)
Output fuse		4 A gL/gG (for low-demand applications)
Signal: M1
Output description	non-safety-related
Number of outputs	1 (digital, PNP)
Voltage	22 V DC (U_s - 2 V)
Current	max. 100 mA
Maximum inrush current	500 mA (Δt = 1 ms at U_s)
Short-circuit protection	no

Connection data

Connection technology
pluggable	no
Conductor connection
Connection method	Screw connection
Conductor cross section rigid	0.2 mm² ... 2.5 mm²
Conductor cross section flexible	0.2 mm² ... 2.5 mm²
Conductor cross-section AWG	26 ... 12
Stripping length	12 mm
Screw thread	M3
Tightening torque	0.5 Nm ... 0.6 Nm

Signaling

Status display	2 x LED (green)
Operating voltage display	1 x LED (green)

Dimensions

Width	6.8 mm
Height	93.1 mm
Depth	102.5 mm

Material specifications

Color (Housing)	yellow (RAL 1018)
Housing material	PBT

Characteristics

Safety data
Stop category	0
Safety data: EN ISO 13849
Category	1 (up to Cat. 4 depending on the application)
Performance level (PL)	c (up to PL e depending on the application)
Safety data: IEC 61508 - High demand
Safety Integrity Level (SIL)	1 (up to SIL 3 depending on the application)
Safety data: IEC 61508 - Low demand
Safety Integrity Level (SIL)	1 (up to SIL 3 depending on the application)
Safety data: EN IEC 62061
Safety Integrity Level (SIL)	1 (up to SIL 3 depending on the application)

Environmental and real-life conditions

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

Approvals

CE
Certificate	CE-compliant

Mounting

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

Item number	2904951
Packing unit	1 pc
Minimum order quantity	1 pc
Sales key	DNA
Product key	DNA171
Catalog page	Page 215 (C-6-2019)
GTIN	4046356904995
Weight per piece (including packing)	88.4 g
Weight per piece (excluding packing)	69 g
Customs tariff number	85371098
Country of origin	DE

EU RoHS
Fulfills EU RoHS substance requirements	Yes
Exemption	7(a), 7(c)-I
China RoHS
Environment friendly use period (EFUP)	EFUP-50 An article-related China RoHS declaration table can be found in the download area for the respective article under "Manufacturer declaration". For all articles with EFUP-E, no China RoHS declaration table issued and required.
EU REACH SVHC
REACH candidate substance (CAS No.)	Lead (CAS: 7439-92-1)
SCIP	a0e07d0f-877c-4643-8319-37555236be4e

Automate

Connect

Mark, assemble, and install

Supply, charge, and protect

Switch, Measure and Monitor

PSR-MS25-1NO-1DO-24DC-SC - Safety relays

2904951

Product details

ECLASS

ETIM

UNSPSC

Functional Safety

cULus Listed

Functional Safety

Compatible products

Your advantages

Automate

Connect

Mark, assemble, and install

Supply, charge, and protect

Switch, Measure and Monitor

PSR-MS25-1NO-1DO-24DC-SC - Safety relays 2904951

Product details

ECLASS

ETIM

UNSPSC

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Your advantages

PSR-MS25-1NO-1DO-24DC-SC - Safety relays

2904951