REL-IR4/24DC/4X21/EX - Single relay

2909738

Pluggable industrial relay, RT III sealed with power contacts, 4x changeover contacts, mechanical switch position indicator, polarity: non-polarized, input voltage: 24 V DC, in connection with RIF-2.../EX bases approved in accordance with ATEX/IECEx (zone 2) and Ex zone class I, div. 2.

This product needs further products for operation. Mandatory accessories

Product type	Single relay
Operating mode	100% operating factor
Mechanical service life	1x 10⁷ cycles, approximately
Insulation characteristics
Insulation	Basic insulation
Overvoltage category	II
Pollution degree	2
Data management status
Date of last data management	20.03.2025

Maximum power dissipation for nominal condition	0.91 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	2.5 kV

Coil side
Nominal input voltage U_N	24 V DC
Input voltage range	18.7 V DC ... 46.8 V DC
Input voltage range in reference to U_N	see diagram
Drive and function	monostable
Drive (polarity)	non-polarized
Typical input current at U_N	38 mA
Typical response time	13 ms
Typical release time	3 ms

Switching
Contact switching type	4 changeover contacts
Type of switch contact	Single contact
Contact material	AgNi
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)
	12 A (4 s, 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)
	1500 VA (for 250 V AC)
Switching capacity min.	0.12 W
Switching capacity	2 A (at 24 V, DC13)
	1 A (at 230 V, AC15)
Motor load according to UL 508	1/3 HP, 240 V AC

Connection method	Plug-in connection

Width	21.2 mm
Height	27.5 mm
Depth	35.6 mm

Ambient conditions
Degree of protection	RT III
Ambient temperature (operation)	-40 °C ... 70 °C
Ambient temperature (storage/transport)	-40 °C ... 85 °C

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	2909738
Packing unit	10 pc
Minimum order quantity	10 pc
Sales key	*****
Product key	DK694H
Catalog page	Page 345 (C-5-2019)
GTIN	4055626379685
Weight per piece (including packing)	35.43 g
Weight per piece (excluding packing)	35.43 g
Customs tariff number	85364900
Country of origin	PL

Compatible products

Mandatory accessories

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-IR4/24DC/4X21/EX - Single relay

2909738

Product details

ECLASS

ETIM

UNSPSC

EAC

cULus Recognized

Compatible products

Automate

Connect

Mark, assemble, and install

Supply, charge, and protect

Switch, Measure and Monitor

REL-IR4/24DC/4X21/EX - Single relay 2909738

Product details

ECLASS

ETIM

UNSPSC

Compatible products

RIF-2-BPT/4X21/EX - Relay base 1047028

RIF-2-BSC/4X21/EX - Relay base 1047031

REL-IR4/24DC/4X21/EX - Single relay

2909738