Phoenix Contact 2903688 REL-IR4/L-230AC/4X21 Single relay

The REL-IR4/L-230AC/4X21 is a plug-in industrial single relay from Phoenix Contact, designed for a nominal input voltage of 230 V AC and featuring 4 changeover contacts with AgNi contact material. Built for 100% operating factor, it integrates a test button, yellow status LED, and mechanical switching position indicator for fast commissioning and visual diagnostics. Continuous contact current is rated at 6 A with a maximum switching voltage of 250 V AC/DC.

Technical specifications:

• Part designation: REL-IR4/L-230AC/4X21
• Catalog number: 2903688
• Manufacturer: Phoenix Contact
• EAN: 4046356759014
• Product type: Single relay
• Pack size: 10 pc
• Nominal input voltage: 230 V AC
• Input voltage range: 179.4 V AC - 317.4 V AC (at 20 °C)
• Mains frequency: 50/60 Hz
• Contact switching type: 4 changeover contacts
• Contact material: AgNi
• Limiting continuous current: 6 A
• Maximum inrush current: 16 A (20 ms, N/O contacts)
• Maximum switching voltage: 250 V AC/DC
• Interrupting rating (ohmic load): max. 1500 VA at 250 V AC
• Typical input current at UN: 6.5 mA
• Maximum power dissipation: 1.5 W
• Test voltage (winding/contact): 2.5 kVrms (50 Hz, 1 min)
• Rated insulation voltage: 250 V AC
• Rated surge voltage: 2.5 kV
• Typical response time: 5 ms - 15 ms
• Typical release time: 5 ms - 20 ms
• Mechanical service life: approx. 20 million cycles
• Ambient temperature (operation): -40 °C - 55 °C
• Ambient temperature (storage/transport): -40 °C - 85 °C
• Dimensions (W x H x D): 21.2 mm x 27.5 mm x 35.6 mm
• Weight (excluding packing): 30.9 g
• Mounting position: any
• Insulation: Basic insulation, overvoltage category II, pollution degree 2
• Degree of protection: RT I
• Drive: monostable, non-polarized
• Status display: LED (yellow)
• Country of origin: PL

Features and benefits:

• 100% operating factor enables continuous-duty use without derating
• Test button and mechanical switching position indicator simplify on-site fault diagnosis
• Wide input voltage range (179.4 V AC - 317.4 V AC) accommodates mains fluctuations
• AgNi contacts support a minimum switching current of 5 mA at 24 V, suitable for low-energy signal circuits
• Corrosive gas tested to ISA-S71.04 G3 Harsh Group for use in demanding environments
• RoHS compliant with no REACH SVHC substances above 0.1 wt%, supporting environmental compliance

Applications:

• Industrial machine control panels requiring reliable 230 V AC switching of motor contactors or solenoids
• Building automation and HVAC systems with 230 V AC control circuits
• Process control cabinets in chemical or wastewater environments where G3 corrosive gas resistance is required
• Output relay interfaces in PLC systems handling mixed AC/DC loads up to 250 V
• Signal isolation and load switching in railway or transportation control equipment

Compliant with IEC 61810, IEC 60664, EN 60068-2-60, and ISA-S71.04 G3. Compatible mandatory relay bases include the RIF-2-BPT/4X21 (push-in connection, item 2900934) and RIF-2-BSC/4X21 (screw connection, item 2900932) for NS 35/7.5 DIN rail mounting.

Also known as: Phoenix Contact REL-IR4/L-230AC/4X21, Phoenix 2903688, Phoenix Contact 230V AC 4-changeover relay, industrial plug-in relay 230VAC.