PSR-PE20-1NO-24DC-SC-SET60 - Coupling relay

1272930

Set of 60 coupling relays for SIL 3 low-demand applications, couples digital output signals to the I/O, 1 undelayed enabling current path, safe state off applications, test pulse filter, plug-in screw terminal block

Note on application
Note on application	Only for industrial use

Product type	Coupling relay
Product family	PSRclassic
Application	Safe switch off
	Low demand
Control	1-channel
Mechanical service life	10x 10⁶ cycles
Relay type	Electromechanical relay in accordance with IEC/EN 61810
Insulation characteristics
Overvoltage category	III
Degree of pollution	2
Times
Typ. starting time with U_s	< 70 ms (when controlled via A3 at U_S)
Typical release time	< 50 ms (on demand via A3 at U_s)
Recovery time	500 ms

Maximum power dissipation for nominal condition	2.36 W (U_B = 26.4 V, U_S = 24 V, I_S = 40 mA, I_L² = 16 A, R_contact = 0.075 Ω)
Nominal operating mode	100% operating factor
Rated insulation voltage	250 V AC
Rated surge voltage/insulation	Safe isolation, reinforced insulation 6.4 kV between 250 V load current paths and 24 V logic paths
	Basic insulation 4 kV between all current paths and housing
Supply
Designation	3/4
Rated control circuit supply voltage U_S	21.6 V DC ... 26.4 V DC
Rated control circuit supply voltage U_S	24 V DC -10 % ... +10 %
Rated control supply current I_S	40 mA
Power consumption at U_S	960 mW
Inrush current	typ. 100 mA (Δt = 10 ms at U_s)
Filter time	1 ms (in the event of voltage dips at U_s)
Protective circuit	Serial protection against polarity reversal; Suppressor diode, 38.6 V/600 W (connections 3/4)

Relay: Enabling current path (5/6)
Output description	3 N/O contacts in series, without delay, floating
Number of outputs	1 (safety-related)
Contact switching type	1 enabling current path
Contact material	AgSnO₂, gold-plated
Switching voltage	min. 12 V DC
	max. 250 V AC/DC (Observe the load curve)
Switching capacity	min. 120 mW
Inrush current	min. 10 mA
	max. 4 A
Limiting continuous current	4 A (Low demand)
Sq. Total current	16 A² (Low-demand, observe derating)
Switching frequency	1 Hz
Mechanical service life	10x 10⁶ cycles
Output fuse	4 A gL/gG (for low-demand applications)

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	24 ... 12
Stripping length	7 mm
Screw thread	M3
Tightening torque	0.6 Nm

Status display	1 x LED (green)

Width	12.5 mm
Height	99 mm
Depth	114.5 mm

Color (Housing)	traffic grey B (RAL 7043)
Housing material	PA

Safety data: IEC 61508 - Low-demand for 1-channel wiring (1oo3 structure without diagnostics)
Safety Integrity Level (SIL)	3

Ambient conditions
Degree of protection	IP20
Min. degree of protection of inst. location	IP54
Ambient temperature (operation)	-40 °C ... 70 °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

CE
Identification	CE-compliant

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

Item number	1272930
Packing unit	1 pc
Minimum order quantity	1 pc
Sales key	DNA161
Product key	DNA161
GTIN	4063151463991
Weight per piece (including packing)	6.202 g
Weight per piece (excluding packing)	5,593 g
Customs tariff number	85371098
Country of origin	DE

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Accessories

Your advantages

Up to SIL 3 in accordance with IEC 61508, IEC 61511, and IEC 50156

Low housing width of just 12.5 mm

Long service life thanks to filtering of controller test pulses

1 enabling current path

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	f8028487-9618-4303-80b1-9d6d37cebd60

Automate

Connect

Mark, assemble, and install

Supply, charge, and protect

Switch, Measure and Monitor

PSR-PE20-1NO-24DC-SC-SET60 - Coupling relay

1272930

Product details

ECLASS

ETIM

UNSPSC

Functional Safety

Compatible products

Your advantages

Automate

Connect

Mark, assemble, and install

Supply, charge, and protect

Switch, Measure and Monitor

PSR-PE20-1NO-24DC-SC-SET60 - Coupling relay 1272930

Product details

PSR-PE20-1NO-24DC-SC - Coupling relay 1119573

ECLASS

ETIM

UNSPSC

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Your advantages

PSR-PE20-1NO-24DC-SC-SET60 - Coupling relay

1272930