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Phoenix Contact REL-IR4/LDP-110DC/4X21AU
AllRelaysElectromechanical RelaysIndustrial Relays
Phoenix ContactOfficial Distributor

By Phoenix Contact

SKU
MPN
2903673
Weight
0.034 kg
This product is Not Cancellable/Not Returnable
Series REL-IR

REL-IR4/LDP-110DC/4X21AU - Single relay

Plug-in industrial relay with power contacts and additional hard gold plating, 4 changeover contacts, test button, status LED, freewheeling diode, mechanical switching position indicator, polarity: A1+, A2-, coil voltage: 110 V DC

Technical Specifications

Product properties

Operating mode100% operating factor
Mechanical service lifeapprox. 2x 107 cycles

Insulation characteristics

InsulationBasic insulation
InsulationBasic insulation
Overvoltage categoryII
Pollution degree2

Electrical properties

Service life electricalsee diagram
Maximum power dissipation for nominal condition0.88 W
Test voltage (Winding/contact)2.5 kVrms (50 Hz, 1 min., winding/contact)
Test voltage (Changeover contact/changeover contact)2 kVrms (50 Hz, 1 min., changeover contact/changeover contact)
Rated Insulation Voltage250 V AC
Rated surge voltage2.5 kV

Coil side

Nominal input voltage UN110 V DC
Input voltage range88 V DC ... 198 V DC (20 °C)
Drive and functionmonostable
Drive (polarity)polarized
Typical input current at UN8 mA
Typical response time13 ms
Typical release time14 ms
Protective circuitFreewheeling diode
Status displayYellow LED

Switching

Contact switching type4 changeover contacts
Type of switch contactSingle contact
Contact MaterialAgNi, hard gold-plated
NoteIf the specified maximum values for multi-layer contact relays are exceeded, the gold plating is destroyed. The maximum values of the power contact relay are then valid. This can result in a shorter service life than with a pure power contact.
Maximum Switching Voltage30 V AC
Maximum Switching Voltage36 V DC
Minimum Switching Voltage2 V (At 24 mA)
Limiting Continuous Current50 mA
Maximum Inrush Current50 mA
Min. switching current2 mA (24 V DC)
Interrupting rating (ohmic load) max.1.2 W (at 24 V DC)
Switching capacity min.48 mW
Motor load according to UL 5081/3 HP, 240 V AC

Switching: when the gold layer is destroyed

Notethe following values are applicable if a gold layer is destroyed
Contact MaterialAgNi
Maximum Switching Voltage250 V AC/DC
Minimum Switching Voltage5 V (At 24 mA)
Limiting Continuous Current6 A
Maximum Inrush Current16 A (20 ms, N/O contacts)
Min. switching current5 mA (at 24 V)
Interrupting rating (ohmic load) max.144 W (at 24 V DC)
Interrupting rating (ohmic load) max.124 W (at 48 V DC)
Interrupting rating (ohmic load) max.108 W (at 60 V DC)
Interrupting rating (ohmic load) max.52 W (at 110 V DC)
Interrupting rating (ohmic load) max.48 W (at 220 V DC)
Interrupting rating (ohmic load) max.1500 VA (for 250 V AC)
Switching capacity2 A (at 24 V, DC13)
Switching capacity0.22 A (at 120 V, DC13)
Switching capacity0.11 A (at 250 V, DC13)
Switching capacity1.5 A (at 24 V, AC15)
Switching capacity1.5 A (at 120 V, AC15)
Switching capacity1 A (at 240 V, AC15)

Connection data

Connection MethodPlug-in connection

Dimensions

Width21.2 mm
Height27.5 mm
Depth35.6 mm

Ambient conditions

Degree of ProtectionRT I
Ambient Temperature (Operation)-40 °C ... 70 °C
Ambient temperature (storage/transport)-40 °C ... 85 °C

Corrosive gas test

IdentificationISA-S71.04. G3 Harsh Group
IdentificationEN 60068-2-60

Standards and Regulations

Standards/regulationsIEC 60664
Standards/regulationsIEC 61810

Mounting

Mounting Positionany

Why Proax for Phoenix Contact REL-IR4/LDP-110DC/4X21AU?

Proax is an authorized distributor of Phoenix Contact REL-IR4/LDP-110DC/4X21AU and one of Phoenix Contact's largest distributors in North America. Our highly skilled in-house technical team is ready to assist with any technical needs.

Have a question in mind? to help you get the right product as quickly as possible for your project. We're always here to help!

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Additional Information

Alternate NamesRELIR4LDP110DC4X21AU
Pack Size10
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