ST-REL3-SG-B 24/21/M - Relay connectors

2898155

Relay plug, fitted with remanence miniature switching relay, contacts (AgSnO): small to large loads, 1 changeover contact, input voltage 24 V DC, polarity protection and freewheeling diode, negative switching

Product type	Relay Module
Operating mode	100% operating factor
Mechanical service life	approx. 10⁷ cycles
Insulation characteristics: Air clearances and creepage distances between the power circuits
Insulation	Basic insulation
Overvoltage category	II
Pollution degree	2
Data management status
Date of last data management	03.07.2025

Maximum power dissipation for nominal condition	0.19 W
Test voltage (Winding/contact)	2 kV_rms (50 Hz, 1 min., winding/contact)
Air clearances and creepage distances between the power circuits
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	19.2 V DC ... 26.4 V DC (20 °C)
Drive and function	bistable
Drive (polarity)	polarized
Typical input current at U_N	typ. 8 mA
Typical response time	5 ms
Typical release time	5 ms
Pulse time range	30 ms ... 5 s
Coil voltage	24 V DC
Protective circuit	Freewheeling diode; Freewheeling diode
	Reverse polarity protection; Polarity protection diode

Switching
Contact switching type	1 changeover contact
Type of switch contact	Single contact
Contact material	AgSnO
Maximum switching voltage	250 V AC/DC
Minimum switching voltage	5 V (At 5 V)
	24 V (at 24 V)
Limiting continuous current	6 A
Maximum inrush current	8 A
Min. switching current	1 mA (at 24 V)
	100 mA (At 5 V)
Interrupting rating (ohmic load) max.	144 W (at 24 V DC)
	43 W (at 48 V DC)
	42 W (at 60 V DC)
	55 W (at 110 V DC)
	100 W (at 220 V DC)
	1500 VA (for 250 V AC)
Switching: when the gold layer is destroyed
Maximum switching voltage	250 V AC/DC
Limiting continuous current	6 A
Maximum inrush current	8 A
Interrupting rating (ohmic load) max.	120 W (at 24 V DC)
	40 W (at 48 V DC)
	35 W (at 60 V DC)
	30 W (at 110 V DC)
	55 W (at 220 V DC)
	1500 VA (for 250 V AC)

Width	20.8 mm
Height	33 mm
Depth	66.5 mm

Color	green (RAL 6021)

Ambient conditions
Ambient temperature (operation)	-40 °C ... 50 °C
Ambient temperature (storage/transport)	-40 °C ... 70 °C

Air clearances and creepage distances between the power circuits
Standards/regulations	DIN EN 50178

Mounting type	Plug-in mounting
Assembly note	in rows with zero spacing
Mounting position	any

Item number	2898155
Packing unit	10 pc
Minimum order quantity	1 pc
Note	Made to order (non-returnable)
Sales key	DK6
Product key	DK61B2
GTIN	4017918078782
Weight per piece (including packing)	34.13 g
Weight per piece (excluding packing)	34.13 g
Customs tariff number	85364190
Country of origin	DE

Compatible products

Accessories

PHOENIX CONTACT Middle East FZ LLC

1201N-1206N, Dubai Science Park Towers - North, P.O. Box 345002, Dubai, United Arab Emirates

Ask a Question 800-7463649 info-me@phoenixcontact.com

ECLASS-13.0	27371601
ECLASS-15.0	27371601

EU RoHS
Fulfills EU RoHS substance requirements	Yes
Exemption	7(a), 7(c)-I
China RoHS
Environment friendly use period (EFUP)	EFUP-50 An article-related China RoHS declaration table can be found in the download area for the respective article under "Manufacturer declaration". For all articles with EFUP-E, no China RoHS declaration table issued and required.
EU REACH SVHC
REACH candidate substance (CAS No.)	Lead (CAS: n/a)
SCIP	bd5338a0-bc17-4d60-8298-51343fb7235c

Automate

Connect

Mark, assemble, and install

Supply, charge, and protect

Switch, Measure and Monitor

ST-REL3-SG-B 24/21/M - Relay connectors

2898155

Product details

ECLASS

ETIM

UNSPSC

EAC

Compatible products

Automate

Connect

Mark, assemble, and install

Supply, charge, and protect

Switch, Measure and Monitor

ST-REL3-SG-B 24/21/M - Relay connectors 2898155

Product details

ECLASS

ETIM

UNSPSC

Compatible products

URELG 3-PMTK - Basic terminal block 2820709

UDK-RELG 3 - Basic terminal block 2777043

URELG 3 - Basic terminal block 2820136

ST-REL3-SG-B 24/21/M - Relay connectors

2898155