The SR3D Safety Control Device:

The SR3D is a versatile safety control device specifically designed for continuous operation in combustion plants in accordance with EN 50156-1. Equipped with three secure relay outputs and certified by Germanischer Lloyd (GL) under the number 32915-06HH, it is also approved for use in maritime applications. This makes it a reliable choice for use in waste incineration systems on ships. The SR3D combines high safety standards with flexibility and offers a wide range of monitoring functions, including emergency stop monitoring, sliding protective door monitoring, light curtain monitoring, and use as a safe coupling relay. With a compact width of just 22.5 mm and versatile application possibilities, the SR3D has proven itself as a dependable solution for safety control.

Technical Data:

• Safety function: Emergency stop monitoring, sliding protective door monitoring, light curtain monitoring, safe coupling relay
• Certified according to: EN 60204-1; DIN EN ISO 13849-1; EN 62061; EN 50156-1; EN 746-2; IEC 61508 Parts 1-2 and 4-7; IEC 61511-1
• Approvals: CE, TÜV, GL
• Supply voltage: AC/DC 24 V / AC 115 V / AC 230 V
• Number of safety contacts: 3
• Max. switching capacity of safety contacts: 8 A / 250 VAC resistive load
• Number of signaling outputs: 1
• Number of instantaneous safety contacts: 3
• Number of delayed safety contacts: none
• Start behavior: Automatic start or manual, monitored start
• PL; Cat.; SILCL (EN ISO 13849-1; EN / IEC 62061): PL e; Cat. 4; SILCL 3
• Width: 22.5 mm

Ordering Information:

• Part number with fixed screw terminals: 472272 (24 V) / 472271 (115 V) / 472270 (230 V)
• Part number with pluggable screw terminals: 474272 (24 V) / 474271 (115 V) / 474270 (230 V)
• Part number with push-in spring connection in TWIN version: 475272 (24 V) / 475271 (115 V) / 475270 (230 V)

Accessories:

• Part no. EKLS4 (Set of pluggable screw terminals): 472592
• Part no. EKLT4 (Set of push-in spring connection in TWIN version): 472595
• Part no. Spacer for defined minimum distance between two safety relays (see derating): 472596