SCR-3

Safety monitoring relay IDEM SCR-3.

The SCR-3 is an all purpose Safety Monitoring Relay that ensures the quick and safe deactivation of the moving parts of a machine in case of danger.

Applications include single and dual channel emergency stop circuits or dual channel safety guard monitoring using Tongue Switches or Non Contact Switches.

Features:

• Three Force Guided Safety Output Contacts.
• One Auxiliary Output Contact.
• Standards: EN60204-1, ISO13849-1, EN62061.
• Single or Dual Channel input with LED indication of input status.
• Redundancy and cycle monitoring.
• Feedback loop for monitoring contacts or expansion modules.
• Short circuit and earth fault monitoring.
• 22.5mm Din Rail Mounting.
• Choice of 24Vac/dc, 110Vac or 230Vac supply.

Specification:

Standards:

• EN60204-1
• ISO13849-1:
• Performance Level: e
• Category (ISO13849-1): 4
• MTTFd: 567 years
• DC (average): 99%
• Proof Test Interval (Life): 20 years
• Safety Data Annual Usage: 365 days per year/24 hours per day; Test cycle 3600 seconds/cycle; Full load AC15
• EN62061:
• SILCL: 3
• Proof Test Interval (life): 20 years
• Hardware Fault Tolerance: 1
• DC (average): 99%
• PFHd: 1.2 x 10-8

Safety Classification and Reliability Data:

• Monitored Safety Inputs Circuits: 2NC or 1NC from safety switches
• Safety Switching Outputs: 3NC positively guided
• Auxiliary Outputs: 1NO
• Operating Voltage: 24Vac/dc, 110VAC or 230VAC
• Supply Deviation: +/-10%
• Control Voltage at S11: 24Vdc
• Control Current S11 to S14: 40mA approx.
• Monitored Reset Circuit Loop: Auto or Monitored Manual Reset
• Maximum Line Conductor Cross Section: 2.5 sq mm
• Maximum Length of Control Line: 1000m with 0.75 sq mm
• Contact Material: AgNi
• Indication - Green:
• LED1 internal relay K1 energised
• LED2 internal relay K2 energised
• LED1 and LED2 OSSD closed
• Contact Service Life: Mechanical 1x107; Electrical 1x105
• Safety Contact Breaking Capacity:
• AC: 250V, 2000VA, 8A, ohmic; 230V, 3A for AC15
• DC: 24V, 48W, 2.0A for DC-13 (Max. total current 15A)
• Auxiliary Contact Breaking Capacity:
• AC: 250V, 500VA, 2A
• DC: 50V, 30W, 1.25A ohmic
• External Fuse Protection - Safety Outputs: 4A slow blow or 6A quick blow
• Minimum Voltage and Current: 24V, 20mA dc
• Response Time on Output Opening: 90ms
• Rated Insulation Voltage: 250V
• Protection: IP20
• Rated Impulse Withstand Voltage: 4kV
• Operating Temperature: -15°C ~ 40°C
• Mounting: 22.5mm DIN rail
• Weight: 160g approx.

Warranty: 36 months

Ordering Information:

• SCR-3 180002 - Terminal type: Standard Screw Terminals; Supply voltage: 24VAC/VDC; Switch input circuits: 2NC; Output contacts: 3NC 1NO
• SCR-3 180003 - Terminal type: Standard Screw Terminals; Supply voltage: 230VAC; Switch input circuits: 2NC; Output contacts: 3NC 1NO
• SCR-3 180004 - Terminal type: Standard Screw Terminals; Supply voltage: 110VAC; Switch input circuits: 2NC; Output contacts: 3NC 1NO
• SCR-3 180002-P - Terminal type: Pluggable Screw Terminals; Supply voltage: 24VAC/VDC; Switch input circuits: 2NC; Output contacts: 3NC 1NO
• SCR-3 180003-P - Terminal type: Pluggable Screw Terminals; Supply voltage: 230VAC; Switch input circuits: 2NC; Output contacts: 3NC 1NO
• SCR-3 180004-P - Terminal type: Pluggable Screw Terminals; Supply voltage: 110VAC; Switch input circuits: 2NC; Output contacts: 3NC 1NO