Phoenix Contact 2981800 Safety Relay – PSR-SCP-24DC/ESD/4X1/30

The Phoenix Contact PSR-SCP-24DC/ESD/4X1/30 is a robust safety relay from the PSRclassic series, engineered for emergency stop and safety door monitoring up to SIL 3 / Cat. 4 / PL e in accordance with EN ISO 13849. Featuring electromechanical, force-guided contacts and flexible activation modes, it ensures dependable performance in demanding safety applications.

Designed for industrial control panels, this unit offers 4 N/O enabling paths, adjustable dropout delay, and LED diagnostics. It is DIN rail mountable and equipped with plug-in screw terminals for simplified installation and service.

Technical Specifications

Model: Phoenix Contact PSR-SCP-24DC/ESD/4X1/30
Part Number: Phoenix 2981800
Product Type: Safety Relay
Mounting: DIN rail NS 35
Housing Material: PA (polyamide)
Dimensions (W × H × D): 22.5 × 99 × 114.5 mm
Weight: Approx. 160 g

Electrical Characteristics

Input:

• Nominal Voltage (UN): 24 V DC
• Voltage Range: 0.85 – 1.1 × UN
• Inrush Current (typ.): 250 mA
• Typical Input Current: 75 mA
• Protective Circuit: Suppressor diode, 33 V DC
• Power Dissipation: 1.8 W
• Operating Mode: 100% duty cycle
• Control Circuit Voltage (US): 24 V DC
• Max. Conductor Resistance: 500 Ω (input/reset circuit)

Output:

• Contacts: 4 N/O enabling paths
• Relay Type: Electromechanical, force-guided
• Contact Material: AgSnO₂
• Max. Switching Voltage: 250 V AC/DC
• Min. Switching Voltage: 15 V AC/DC
• Continuous Current: 6 A
• Max. Inrush Current: 6 A
• Switching Capacity (DC): 144 W @ 24 V, 90 W @ 110 V
• Switching Capacity (AC): 1500 VA @ 250 V
• Min. Switching Capacity: 0.4 W
• Output Fuse: 10 A gL/gG (N/O contacts)

Timing Functions:

• Response Time: 150 ms
• Release Time: 20 ms (undelayed), 100 ms (delayed)
• Delay Range: 0.1 – 30 s ±30% (adjustable)
• Recovery Time: 330 ms (restart), 1 s (electrical torque)

Mechanical & Connection Data

Connection Type: Screw, pluggable terminal blocks
Input/Output Wiring:

• Rigid/Flexible: 0.2–2.5 mm²
• AWG: 24–12
• Stripping Length: 7 mm
• Screw Thread: M3

Mounting Position: Horizontal on DIN rail NS 35
Installation Clearance: Not specified (ensure IP54 in panel)

Environmental & Reliability

• Operating Temperature: –20°C to +45°C
• Storage Temperature: –40°C to +70°C
• Relative Humidity: ≤ 75% avg. (85% infrequently, non-condensing)
• Protection Degree: IP20 (housing), IP54 (recommended cabinet)
• Vibration Resistance: 10–150 Hz, 2 g
• Shock Resistance: 15 g
• Altitude: ≤ 2000 m
• Insulation Category: Overvoltage Category II, Pollution Degree 2

Functional Safety Ratings

• Stop Category: 0 / 1
• Category (EN ISO 13849): Cat. 4
• Performance Level: PL e
• SIL (IEC 62061 / IEC 61508): SIL 3
• Service Life: Approx. 10⁷ cycles (mechanical)

Applications

Ideal for:

• Emergency stop circuits
• Guard door safety interlocks
• Light grid integration
• Two-channel safety inputs
• Redundant safety configurations

Key Features & Benefits

✅ SIL 3 / Cat. 4 / PL e Rated: Ensures compliance with the highest industrial safety standards.

✅ Adjustable Dropout Delay: 0.1 to 30 seconds for application flexibility.

✅ Clear LED Diagnostics: Instant status feedback with green indicators.

✅ Compact Width (22.5 mm): Space-saving design for control cabinets.

✅ Plug-In Terminal Blocks: Simplifies installation and replacement.

📦 Available from Drive Outlet Megastore

The Phoenix Contact PSR-SCP-24DC/ESD/4X1/30 offers certified safety for critical machine protection applications. Count on its reliability for personnel and equipment safety.

Need help choosing the right safety relay or integrating into your panel? Contact our support team.

Phoenix safety. Drive Outlet reliability — protect what matters.