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Single relay-REL-IR4/LDP- 48DC/4X21AU-2903671
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Plug-in industrial relay with power contacts and additional hard gold plating, 4 PDTs, test key, status LED,
freewheeling diode, mechanical switch position indicator, polarity: A1+, A2-, coil voltage: 48 V DC
Key Commercial Data
Packing unit 1 pc
Minimum order quantity 10 pc
GTIN
GTIN 4046356758840
Weight per Piece (excluding packing) 34.000 g
Custom tariff number 85364190
Country of origin Poland
Technical data
Dimensions
Width 21.2 mm
Height 27.5 mm
Depth 35.6 mm
Ambient conditions
Ambient temperature (operation) -40 °C ... 70 °C
Ambient temperature (storage/transport) -40 °C ... 85 °C
Degree of protection RT I
Coil side
Nominal input voltage UN48 VDC
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Single relay-REL-IR4/LDP- 48DC/4X21AU-2903671
Technical data
Coil side
Input voltage range in reference to UNsee diagram
Typical input current at UN22 mA
Typical response time 13 ms
Typical release time 14 ms
Protective circuit Damping diode
Status display Yellow LED
Power dissipation for nominal condition 1.06 W
Contact side
Contact type 4 PDTs
Type of switch contact Single contact
Contact material AgNi, hard gold-plated
Note
If 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 voltage 30 VAC
36 VDC
Minimum switching voltage 2 V (At 24 mA)
Min. switching current 2 mA (24VDC)
Maximum inrush current 50 mA
Limiting continuous current 50 mA
Interrupting rating (ohmic load) max. 1.2 W (at 24 V DC)
Switching capacity min. 48 mW
Motor load according to UL 508 1/3HP, 240VAC
Contact side (with destroyed gold layer)
Contact material AgNi
Note the following values are applicable if a gold layer is destroyed
Maximum switching voltage 250 V AC/DC
Minimum switching voltage 5 V (At 24 mA)
Limiting continuous current 6 A
Maximum inrush current 16 A (20 ms, N/O contacts)
Min. switching current 5 mA (at 24V)
Interrupting rating (ohmic load) max. 144 W (at 24 V DC)
124 W (at 48 V DC)
108 W (at 60 V DC)
52 W (at 110 V DC)
48 W (at 220 V DC)
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Single relay-REL-IR4/LDP- 48DC/4X21AU-2903671
Technical data
Contact side (with destroyed gold layer)
1500 VA (for 250 V AC)
Switching capacity 2 A (at 24 V, DC13)
0.22 A (at 120 V, DC13)
0.11 A (at 250 V, DC13)
1.5 A (at 24 V, AC15)
1.5 A (at 120 V, AC15)
1 A (at 240V, AC15)
General
Test voltage relay winding/relay contact 2.5 kVrms (50 Hz, 1 min.)
Test voltage PDT/PDT 2 kVrms (50 Hz, 1 min.)
Operating mode 100% operating factor
Mechanical service life approx. 2x 107 cycles
Service life, electrical see diagram
Mounting position any
Connection data
Connection method Plug connection
Standards and Regulations
Connection in acc. with standard CSA
Standards/regulations IEC60664
IEC 61810
Rated insulation voltage 250 VAC
Rated surge voltage 2.5 kV
Insulation Basic insulation
Pollution degree 2
Overvoltage category II
Environmental Product Compliance
China RoHS Environmentally Friendly Use Period = 50 years
For details about hazardous substances go to tab “Downloads”, Category
“Manufacturer's declaration”
Drawings
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Single relay-REL-IR4/LDP- 48DC/4X21AU-2903671
Diagram
0,1
0,2
0,3
0,5
1
2
4
6
10
20
10 20 30 50 70 100 300200
!
"
!
"
Switching voltage [V]
Switching current [A]
AC, ohmic load
DC, ohmic load
Interrupting rating
Circuit diagram
12
A1
11 14
2221 24
3231 34
4241 44
A2
Diagram
0,6
0,8
1
1,2
1,4
1,6
1,8
2
2,2
2,4
0 10 20 30 40 50 60 70 80
Ambienttemperature[°C]
CoilvoltageU/UN
DCcoils
ACcoils
Operating voltage range
Diagram
!
0 1 2 3
105
106
107
250VAC,ohmicload
Cycles
Switchingcapacity[kVA]
Electrical service life
Diagram
COS j
Reductionfactor
1
0,9
0,3
0,4
0,5
0,6
0,7
0,8
0,9
1
0,8 0,7 0,6 0,5 0,4 0,3 0,2
Service life reduction factor
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Single relay-REL-IR4/LDP- 48DC/4X21AU-2903671
Classifications
eCl@ss
eCl@ss 10.0.1 27371601
eCl@ss 11.0 27371601
eCl@ss 4.0 27371100
eCl@ss 4.1 27371100
eCl@ss 5.0 27371600
eCl@ss 5.1 27371600
eCl@ss 6.0 27371600
eCl@ss 7.0 27371601
eCl@ss 8.0 27371601
eCl@ss 9.0 27371601
ETIM
ETIM 2.0 EC001437
ETIM 3.0 EC001437
ETIM 4.0 EC001437
ETIM 5.0 EC001437
ETIM 6.0 EC001437
ETIM 7.0 EC001437
UNSPSC
UNSPSC 6.01 30211916
UNSPSC 7.0901 39121515
UNSPSC 11 39121515
UNSPSC 12.01 39121515
UNSPSC 13.2 39122334
UNSPSC 18.0 39122334
UNSPSC 19.0 39122334
UNSPSC 20.0 39122334
UNSPSC 21.0 39122334
Approvals
Approvals
Approvals
CSA / UL Recognized / cUL Recognized / VDE Zeichengenehmigung / EAC / cULus Recognized
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Single relay-REL-IR4/LDP- 48DC/4X21AU-2903671
Approvals
Ex Approvals
Approval details
CSA http://www.csagroup.org/services-industries/product-listing/ 2554095
UL Recognized http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/index.htm FILE E 172140
cUL Recognized http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/index.htm FILE E 172140
VDE Zeichengenehmigung http://www2.vde.com/de/Institut/Online-Service/
VDE-gepruefteProdukte/Seiten/Online-Suche.aspx 40040427
EAC TR_TS_D_00573_c
cULus Recognized
Accessories
Accessories
Relay socket
Relay base-RIF-2-BPT/4X21-2900934
RIF-2... relay base, for industrial relay with 2 or 4 PDTs, push-in connection, plug-in option for input/suppressor modules,
for mounting on NS 35/7,5
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Single relay-REL-IR4/LDP- 48DC/4X21AU-2903671
Accessories
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