Phoenix Contact 2903676 REL-IR4/LDP-12DC/4X21 Single relay 4 changeover

The REL-IR4/LDP- 12DC/4X21 is a Phoenix Contact plug-in industrial single relay with 4 changeover contacts, AgNi contact material, and additional hard gold plating. The 12 V DC coil accepts 9.6 V DC to 21.6 V DC and switches up to 6 A at 250 V AC/DC. Onboard features include a test button, yellow status LED, freewheeling diode, and mechanical switching position indicator.

Technical specifications:

• Part designation: REL-IR4/LDP- 12DC/4X21
• Catalog number: 2903676
• Manufacturer: Phoenix Contact
• EAN: 4046356758895
• Pack size: 10 pc
• Country of origin: PL
• Product type: Single relay
• Coil voltage: 12 V DC
• Input voltage range: 9.6 V DC - 21.6 V DC (at 20 °C)
• Drive: monostable, polarized (A1+, A2-)
• Typical input current: 78 mA at UN
• Typical response time: 13 ms / release time: 14 ms
• Contact switching type: 4 changeover contacts
• Contact material: AgNi with hard gold plating
• Limiting continuous current: 6 A
• Maximum switching voltage: 250 V AC/DC
• Maximum inrush current: 16 A (20 ms, N/O contacts)
• Minimum switching current: 5 mA (at 24 V)
• Interrupting rating (ohmic load): 1500 VA max. at 250 V AC
• Rated insulation voltage: 250 V AC
• Rated surge voltage: 2.5 kV
• Test voltage (winding/contact): 2.5 kVrms (50 Hz, 1 min.)
• Maximum power dissipation: 0.94 W
• Mechanical service life: approx. 2 x 10^7 cycles
• Protective circuit: Freewheeling diode
• Status display: LED (yellow)
• Operating mode: 100% operating factor
• Ambient temperature (operation): -40 °C to 70 °C
• Ambient temperature (storage/transport): -40 °C to 85 °C
• Dimensions (W x H x D): 21.2 mm x 27.5 mm x 35.6 mm
• Weight (excl. packing): 34.03 g / incl. packing: 35.08 g
• Insulation: Basic, overvoltage category II, pollution degree 2
• Degree of protection: RT I
• Mounting position: any
• Connection method: Plug-in connection
• Approvals: CSA, VDE, cULus Recognized (E172140)
• Corrosive gas test: ISA-S71.04 G3 Harsh Group, EN 60068-2-60

Features and benefits:

• Hard gold plating on AgNi contacts enables reliable switching of low-level signals
• Integrated freewheeling diode protects control circuits from inductive switching transients
• Test button and mechanical switching position indicator simplify commissioning and fault diagnosis
• 100% operating factor permits continuous coil energization without thermal derating
• Wide input voltage range tolerates supply fluctuations in demanding industrial environments

Applications:

• PLC output interfacing and signal switching in industrial control panels
• Motor control and protection circuits requiring 4-pole changeover switching
• Relay logic assemblies in corrosive environments rated to G3 Harsh Group
• DIN rail systems using compatible relay bases RIF-2-BPT/4X21 (2900934) or RIF-2-BSC/4X21 (2900932)

Compliant with IEC 61810 and IEC 60664; approved to CSA, VDE, and cULus Recognized (E172140). Fulfills EU RoHS requirements with no exemptions and REACH SVHC with no substance above 0.1 wt%.

Also known as: Phoenix Contact REL-IR4/LDP- 12DC/4X21, Phoenix 2903676, Phoenix Contact 12V DC 4CO plug-in relay.