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REL-PR3- 24AC/3X21 - Single relay

2903703

Plug-in high-power relay with power contacts, 3 changeover contacts, coil voltage: 24 V AC

This product needs further products for operation. Mandatory accessories

Notes on operation	The outputs are not suitable for switching different outer conductors.
Notes on operation	Do not use to separate SELV / PELV circuits from other circuits, because safe isolation is not guaranteed.

Product type	Single relay
Operating mode	100% operating factor
Mechanical service life	approx. 10⁷ cycles
Insulation characteristics
Insulation	Basic insulation
Overvoltage category	III
Pollution degree	3
Data management status
Date of last data management	20.03.2025

Service life electrical	see diagram
Maximum power dissipation for nominal condition	2.78 W
Test voltage (Winding/contact)	2.5 kV_rms (50 Hz, 1 min., winding/contact)
Test voltage (Changeover contact/changeover contact)	2.5 kV_rms (50 Hz, 1 min., changeover contact/changeover contact)
Rated insulation voltage	250 V AC
Rated surge voltage	4 kV

Coil side
Nominal input voltage U_N	24 V AC
Input voltage range	20.4 V AC ... 26.4 V AC (20 °C)
Mains frequency	50/60 Hz
Drive and function	monostable
Drive (polarity)	non-polarized
Typical input current at U_N	116 mA
Input power dissipation for U_N	2.8 W
Typical response time	5 ms ... 25 ms (depending on phase relation)
Typical release time range	5 ms ... 20 ms (depending on phase relation)
Coil resistance	75 Ω ±15 %

Switching
Contact switching type	3 changeover contacts
Type of switch contact	Single contact
Contact material	AgNi
Maximum switching voltage	440 V AC
	250 V DC
Minimum switching voltage	10 V (At 24 mA)
Limiting continuous current	16 A
Maximum inrush current	50 A (20 ms, N/O contacts)
Min. switching current	10 mA (at 24 V)
Interrupting rating (ohmic load) max.	384 W (at 24 V DC)
	124 W (at 48 V DC)
	108 W (at 60 V DC)
	52 W (at 110 V DC)
	70 W (at 220 V DC)
	4000 VA (for 250 V AC)
	4000 VA (at 440 V AC)
3-phase motor load	1500 W (at 400 V, AC3)
Motor load according to UL 508	1/3 HP, 120 V AC (single-phase AC motor)
	1/2 HP, 240 V AC (single-phase AC motor)
	1/2 HP, 240 V AC (three-phase induction motor)

Connection method	Plug-in connection

Width	38.6 mm
Height	36.1 mm
Depth	45.5 mm

Ambient conditions
Degree of protection	RT I
Degree of protection (Installation location)	≥ IP54 (Installation location)
Ambient temperature (operation)	-40 °C ... 55 °C
Ambient temperature (storage/transport)	-40 °C ... 85 °C
Altitude	≤ 2000 m

Corrosive gas test
Identification	ISA-S71.04. G3 Harsh Group
	EN 60068-2-60

Standards/regulations	IEC 60664
	IEC 61810

Mounting position	any

Item number	2903703
Packing unit	1 pc
Minimum order quantity	1 pc
Sales key	02
Product key	DK6965
GTIN	4046356759151
Weight per piece (including packing)	84.3 g
Weight per piece (excluding packing)	84.3 g
Customs tariff number	85364190
Country of origin	PL

Compatible products

Mandatory accessories

PHOENIX CONTACT S.A de C.V.

Lago Alberto No. 319 - Piso 9, Colonia Granada, Alcaldía Miguel Hidalgo, México, Ciudad de México, C.P. 11520

Ask a question +52/55/1101-1380 ventas@phoenixcontact.com.mx

ECLASS-13.0	27371601
ECLASS-15.0	27371601

EU RoHS
Fulfills EU RoHS substance requirements	Yes (No exemptions)
China RoHS
Environment friendly use period (EFUP)	EFUP-E No hazardous substances above the limits
EU REACH SVHC
REACH candidate substance (CAS No.)	No substance above 0.1 wt%

Automate

Connect

Mark, assemble, and install

Supply, charge, and protect

Switch, Measure and Monitor

REL-PR3- 24AC/3X21 - Single relay

2903703

Product details

ECLASS

ETIM

UNSPSC

CSA

cULus Recognized

Compatible products

Automate

Connect

Mark, assemble, and install

Supply, charge, and protect

Switch, Measure and Monitor

REL-PR3- 24AC/3X21 - Single relay 2903703

Product details

ECLASS

ETIM

UNSPSC

Compatible products

RIF-4-BPT/3X21 - Relay base 2900961

RIF-4-BSC/3X21 - Relay base 2900960

REL-PR3- 24AC/3X21 - Single relay

2903703