Product Description:

The SR3D safety relay is a versatile safety control device with three safe relay outputs, specifically designed for continuous operation in combustion systems in accordance with EN 50156-1. It is ideal for use in safety-critical environments, such as waste incineration plants on ships. The device is certified by the Germanischer Lloyd (GL) under certificate number 32915-06HH, making it suitable for maritime applications.

With safety functions like emergency stop monitoring, sliding guard door monitoring, light curtain monitoring, and use as a safe coupling relay, the SR3D offers a flexible solution for many safety-related applications. It can be operated with either automatic start or manual monitored start.

The SR3D provides a high safety level with a rating of PL e, Category 4, and SILCL 3 (according to EN ISO 13849-1 and EN/IEC 62061). The power supply is versatile and supports AC/DC 24 V, AC 115 V, and AC 230 V. The compact design with a width of only 22.5 mm allows for space-saving installation in control cabinets.

Technical Data:

Safety functions:

• Emergency stop monitoring
• Sliding guard door monitoring
• Light curtain monitoring
• Safe coupling relay

Certification:

• 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
• Germanischer Lloyd (GL)

Power supply:

• AC/DC 24 V
• AC 115 V
• AC 230 V

Safety contacts:

• Number: 3 safety contacts (non-delayed)
• Switching capacity: 8 A / 250 VAC (resistive load)

Signaling output:

• Number: 1 signaling output

Start behavior:

• Automatic start or manual, monitored start

Safety levels (according to EN ISO 13849-1; EN/IEC 62061):

• Performance Level (PL): e
• Category: 4
• SIL CL: 3

Dimensions:

• Width: 22.5 mm

Available Variants:

• Order number: 472272 (24 V, fixed screw terminals)
• Order number: 472271 (115 V, fixed screw terminals)
• Order number: 472270 (230 V, fixed screw terminals)
• Order number: 474272 (24 V, pluggable screw terminals)
• Order number: 474271 (115 V, pluggable screw terminals)
• Order number: 474270 (230 V, pluggable screw terminals)
• Order number: 475272 (24 V, push-in spring terminals in TWIN design)
• Order number: 475271 (115 V, push-in spring terminals in TWIN design)
• Order number: 475270 (230 V, push-in spring terminals in TWIN design)

Accessories:

• Order number: 472592 (EKLS4, set of pluggable screw terminals)
• Order number: 472595 (EKLT4, set of push-in spring terminals in TWIN design)
• Order number: 472596 (spacer for defining minimum distance between two safety relays)