Phoenix REL-IR4/LDP-110DC/4X21AU-single relay 2903673, plug-in industrial relay, with power contact and additional hard gold plating, 4 PDT, test button, status LED, freewheeling diode, mechanical switch position display, Polarity: A1, A2-, coil voltage: 110V DC

Product Type Single relay
Mode of operation 100% operating factor
mechanical life about 2x 107times
insulation characteristics
insulation Foundation Isolation
Overvoltage Category II
pollution level 2
Data Management Status
Last data maintenance date 25.08.2025

service life, electrical See Graph
rated conditions 0.88W
test voltage (coil/contact) 2.5 kVrms(50Hz,1 min, coil/contact)
test voltage (changeover contact/changeover contact) 2 kVrms(50Hz,1 minute, changeover contact/changeover contact)
Rated insulation voltage 250V AC
Rated overvoltage 2.5 kV

coil side
Rated input voltage UN 110V DC
Input Voltage Range 88V DC ... 198V DC (20 °C)
drives and functions monostable
drive (polarity) polarization
UN 8 mA
Typical Response Time 13 ms
Typical release time 14 ms
protection circuit freewheeling diode
Status Display LED (yellow)

switching
Contact Type 4 PDT
Switch Contact Type single contact
Contact Material AgNi, hard gold plating
Considerations when the limit values given are exceeded, the gold plating is destroyed. If you continue to use, the highest value of the high power relay is applicable. Compared with the use of power contacts alone, its life will be reduced.
maximum switching voltage 30V AC
36V DC
Minimum Switching Voltage 2V (when 24 mA)
limit continuous current 50 mA
Maximum impact current 50 mA
minimum switching current 2 mA (24V DC)
Maximum power rating (resistive load) 1.2W (24V DC)
Minimum on-off capacity 48 mW
UL 508 Motor Loads 1/3 HP,240 V AC
switching: when the gold plating layer is destroyed
Considerations If the gold plating is damaged, the following values are applicable.
Contact Material AgNi
maximum switching voltage 250V AC/DC
Minimum Switching Voltage 5V (when 24 mA)
limit continuous current 6 A
Maximum impact current 16 A (20 ms, normally open contact)
minimum switching current 5 mA (24 V)
Maximum power rating (resistive load) 144W (24V DC)
124W (available for 48V DC)
108W (available for 60V DC)
52W (available for 110V DC)
48W (available for 220V DC)
1500 VA (available for 250V AC)
switch capacity 2 A (24V, DC13)
0.22 A (120V, DC13)
0.11 A (250V, DC13)
1.5 A (24V, AC15)
1.5 A (120V, AC15)
1 A (240V, AC15)

Connection Mode in-line connection

Phoenix REL-IR4/LDP-110DC/4X21AU-single relay 2903673

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Created on：2025-09-22 14:13

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