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PSR-PS21-1NO-1NC-24DC-SC - Coupling relay

Coupling relay for SIL2 high- and low-demand applications, couples digital output signals to the I/O, 1 enabling current path, 1 confirmation current path, 1 digital signal output, safe state off applications, test pulse filter, fixed screw terminal block

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Notes	Utilization restriction CCCex note: Use in potentially explosive areas is not permitted in China.
Product properties	Product type: Coupling relay Product family: PSRmini Application: Safe switch off High demand Low demand Ex Relay type: Electromechanical relay with force-guided contacts in accordance with IEC/ENÃ61810-3 Times Typ. starting time with U_s: < 100 ms (with U_s when controlled via A1) Typical release time: < 35 ms (when controlled via A1) Recovery time: 500 ms
Electrical properties	Maximum power dissipation for nominal condition: 2.35 W (I_L²Ã=Ã36ÃA²) Nominal operating mode: 100% operating factor Air clearances and creepage distances between the power circuits Rated insulation voltage: 250 VÃAC Rated surge voltage/insulation: Safe isolation, 6ÃkV reinforced insulation from control circuit, start circuit, confirmation current path, signal output to the enabling current path; 4 kV/basic insulation between all current paths and housing Supply Designation: A1/A2 Rated control circuit supply voltage U_S: 20.4 VÃDC ... 26.4 VÃDC 24 VÃDC -15Ã% / +10Ã% Rated control supply current I_S: typ. 45 mA Power consumption at U_S: typ. 1.08 W Inrush current: typ. 400 mA (ÃÃ¢tÃ<Ã10ÃÃµs at U_s) Filter time: max. 2 ms (at A1-A2; test pulse width) Ã¢Ã¢°¥ 100 ms (at A1-A2; test pulse rate) Protective circuit: Serial protection against polarity reversal; Suppressor diode 33ÃV SupplyÃ¢Ã¢¬Ã¢¹ Designation: 21/A2 Diagnostic supply voltage U_D: 24 VÃDC -15Ã% / +10Ã% Input current at U_D: 6 mA (at 21-A2 for U_D; depending on load +Ã100ÃmA at M1 and 22) Inrush current at U_D: typ. 2.5 A (ÃÃ¢tÃ<Ã20ÃÃµs at U_D) Protective circuit: Serial protection against polarity reversal; Suppressor diode 38ÃV
Output data	Relay: Enabling current path Output description: 1 N/O contact, without delay, floating Number of outputs: 1 (safety-related N/O contacts: 13/14) Contact switching type: 1 enabling current path Contact material: AgSnO₂ Switching voltage: min. 12 V AC/DC max. 250 V AC/DC (Observe the load curve) Switching capacity: min. 60 mW Inrush current: min. 3 mA max. 6 A Switching capacity in accordance with IEC 60947-5-1: 4 A (24ÃV (DC13)) 5 A (250ÃV (AC15)) Limiting continuous current: 6 A (High demand) 4 A (Low demand) Sq. Total current: 36 A² (observe derating) Switching frequency: max. 1 Hz Mechanical service life: 10x 10⁶ cycles Output fuse: 6 A gL/gG 4 A gL/gG (for low-demand applications) Relay: Confirmation current path Output description: 1ÃN/C contact, without delay, not floating (reference ground: A2) Number of outputs: 1 (safety-related N/C contacts: 21/22) Contact switching type: 1 confirmation current path Contact material: AgCuNi, + Au Switching voltage: min. 20.4 VÃDC max. 26.4 VÃDC Switching capacity: min. 20 mW Inrush current: min. 1 mA max. 100 mA Limiting continuous current: 100 mA Switching frequency: max. 1 Hz Mechanical service life: 10x 10⁶ cycles Output fuse: 150 mA Fast-blow Signal: M1 Output description: PNP Number of outputs: 1 (non-safety-related) Voltage: approx. 22 VÃDC (U_DÃ-Ã2ÃV) Current: max. 100 mA Maximum inrush current: 500 mA (ÃÃ¢tÃ=Ã1Ãms at U_s) Short-circuit protection: no Output fuse: 150 mA fast blow
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: 24 ... 12 Stripping length: 12 mm Screw thread: M3 Tightening torque: 0.5 Nm ... 0.6 Nm
Signaling	Status display: 2 x green LEDs Operating voltage display: 1 x yellow LED Error indication: 1 x red LED
Dimensions	Width: 6.8 mm Height: 93.1 mm Depth: 102.5 mm
Material specifications	Housing material: PBT
Characteristics	Safety data Stop category: 0 Safety data: ENÃ50156 Safety Integrity Level (SIL): 2 Safety data: IEC 61508 - High demand Safety Integrity Level (SIL): 2 Safety data: IEC 61508 - Low demand Safety Integrity Level (SIL): 2
Environmental and real-life conditions	Ambient conditions Degree of protection: IP20 Min. degree of protection of inst. location: IP54 Ambient temperature (operation): -40°C ... 65°C (observe derating) Ambient temperature (storage/transport): -40°C ... 85°C Maximum altitude: Ã¢Ã¢°¤ 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): 10ÃHzÃ...Ã150ÃHz, 2g
Approvals	ATEX Identification: Ã¯ÃÃIIÃ3GÃÃExÃecÃnCÃIICÃT4ÃGc Certificate: ULÃ22ÃATEXÃ2912X IECEx Identification: ExÃecÃnCÃIICÃT4ÃGc Certificate: IECExÃULÃ22.0037X UL, USA/Canada Identification: cULus Certificate: E140324 UL Ex, USA / Canada Identification: Class I, Zone 2, AEx nA nC IIC T4 / Ex nA nC IIC Gc T4 X Class I, Div. 2, Groups A, B, C, D, T4 Certificate: E360692 CE Identification: CE-compliant Environmental simulation test Identification: G3 Certificate: ISA-S71.04 CCCÃ/ÃChina-Ex Identification: Ex ec nC IIC T4 Gc Certificate: 2022122304115695 DNV Identification: C, EMC2 Certificate: 11253-14 HH
Standards and regulations	Air clearances and creepage distances between the power circuits Standards/regulations: ENÃ60664-1, ENÃ60079-7, ENÃ60079-15
Mounting	Mounting type: DIN rail mounting Assembly instructions: See derating curve Mounting position: vertical, horizontal, with front of module upward Connection method: Screw connection