Phoenix Contact 2987930 REL-MR-230AC/21HC AU/MS Single relay

The REL-MR-230AC/21HC AU/MS is a Phoenix Contact plug-in miniature single relay with a multi-layer hard gold-plated AgNi changeover contact for reliable low-level signal switching. It operates on a 230 V AC nominal coil (range 179.4 V AC to 333.5 V AC, 50/60 Hz) and supports a minimum switching current of 1 mA at 12 V, scaling to 16 A continuous current when the gold layer is consumed. An integrated test button, mechanical switching position indicator, and status LED are included as standard.

Technical specifications:

• Part designation: REL-MR-230AC/21HC AU/MS
• Catalog number: 2987930
• Manufacturer: Phoenix Contact
• EAN: 4046356481069
• Product type: Single relay
• Nominal input voltage: 230 V AC
• Input voltage range: 179.4 V AC to 333.5 V AC
• Mains frequency: 50/60 Hz
• Contact configuration: 1 changeover contact, AgNi hard gold-plated (multi-layer)
• Switching capacity: 3 A at 240 V AC15; 2 A at 24 V DC13
• Max switching voltage: 30 V AC / 36 V DC (gold intact); 250 V AC/DC (gold consumed)
• Limiting continuous current: 50 mA (gold intact); 16 A (gold consumed)
• Min. switching current: 1 mA at 12 V (gold intact)
• Mechanical service life: 5,000,000 cycles
• Test voltage (winding/contact): 5 kV AC
• Typical response time: 3 ms to 12 ms
• Dimensions (W x H x D): 12.7 mm x 29 mm x 25 mm
• Weight (excl. packing): 18.29 g
• Ambient temperature (operation): -40°C to 70°C
• Connection method: Plug / solder connection
• Country of origin: CN
• Pack size: 10 pc

Features and benefits:

• Multi-layer hard gold contact enables dry-circuit switching from 1 mA at 12 V
• Detectable manual operation via integrated test button simplifies commissioning
• Mechanical switching position indicator and status LED provide clear visual diagnostics
• Wide operating temperature range of -40°C to 70°C for demanding environments
• Corrosive gas tested to ISA-S71.04 G3 Harsh Group for aggressive industrial atmospheres
• Monostable, non-polarized drive suits standard 230 V AC control circuits

Applications:

• PLC I/O interface and control panel signal switching
• Industrial automation systems with 230 V AC coil supply
• Building control, HVAC, and facility management equipment
• DIN rail relay module assemblies using compatible RIF-1 relay bases (NS 35/7.5)

Compliant with EN 61810-1, VDE 0435-201, EN 50178, EN 60068-2-60, and ISA-S71.04 G3 corrosive gas standard. EU RoHS and REACH SVHC compliant.

Also known as: Phoenix Contact REL-MR-230AC/21HC AU/MS, Phoenix 2987930, Phoenix Contact 230VAC miniature relay, PC relay 2987930.