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PHOENIX CONTACT ST-REL3-SG-B 24/21/M ST-REL3-SG-B 24/21/M 2898155 PHOENIX CONTACT Relay connectors View larger
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ST-REL3-SG-B 24/21/M 2898155 PHOENIX CONTACT Relay connectors

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

2898155

PHOENIX CONTACT

1 Pcs.

Relay connectors Relay connector, equipped with mini-residual switching relay, contacts (AgSnO): small to large powers, 1 inverter contact, 24 V DC input voltage, with free-flowing diode and polarity reversal protection diode, switch-to-negative 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

Automation > Switching relay
Industrial Relays

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Technical data
Product properties
Product typeRelay Module
Operating mode100% operating factor
Mechanical service lifeapprox. 107cycles
Data management status
Date of last data management02.05.2024
Article revision09
Insulation characteristics: Air clearances and creepage distances between the power circuits
InsulationBasic insulation
Overvoltage categoryII
Pollution degree2
Electrical properties
Maximum power dissipation for nominal condition0.19 W
Test voltage (Winding/contact)2 kVrms(50 Hz, 1 min., winding/contact)
Air clearances and creepage distances between the power circuits
Rated insulation voltage250 V AC
Rated surge voltage2.5 kV
Input data
Coil side
Nominal input voltage UN24 V DC
Input voltage range19.2 V DC ... 26.4 V DC (20 °C)
Drive and functionbistable
Drive (polarity)polarized
Typical input current at UNtyp. 8 mA
Typical response time5 ms
Typical release time5 ms
Pulse time range30 ms ... 5 s
Coil voltage24 V DC
Protective circuitFreewheeling diode; Freewheeling diode
Reverse polarity protection; Polarity protection diode
Output data
Switching
Contact switching type1 changeover contact
Type of switch contactSingle contact
Contact materialAgSnO
Maximum switching voltage250 V AC/DC
Minimum switching voltage5 V (At 5 V)
24 V (at 24 V)
Limiting continuous current6 A
Maximum inrush current8 A
Min. switching current1 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 voltage250 V AC/DC
Limiting continuous current6 A
Maximum inrush current8 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)
Dimensions
Width20.8 mm
Height33 mm
Depth66.5 mm
Material specifications
Colorgreen (RAL 6021)
Environmental and real-life conditions
Ambient conditions
Ambient temperature (operation)-40 °C ... 50 °C
Ambient temperature (storage/transport)-40 °C ... 70 °C
Standards and regulations
Air clearances and creepage distances between the power circuits
Standards/regulationsDIN EN 50178
Mounting
Mounting typePlug-in mounting
Assembly notein rows with zero spacing
Mounting positionany

ETIM for 2898155 Relays (EC001437)
Feature Name Feature Value
Complete with socket (EF003359) No
With detachable clamps (EF003340) Yes
With LED indication (EF005950) No
Rated control supply voltage DC (EF003980) 19.2 V
Voltage type for actuating (EF008242) DC
Drive, polarization (EF003355) Polarized
Drive, switching attitude (EF003356) Bistable
Number of contacts as normally closed contact (EF008255) 0
Number of contacts as normally open contact (EF008256) 0
Number of contacts as change-over contact (EF008257) 1
Type of switch contact (EF003358) Single contact
With forced-guided contacts (EF003357) No
Material of contact insert (EF008521) Other
Material of contact surface (EF004020) Untreated
Nominal current (EF000001) 0.008 A
Width (EF000008) 20.8 mm
Height (EF000040) 33 mm
Depth (EF000049) 66.5 mm

Product Datasheet

Electrica Online Product Datasheet Prepared from the current product description, catalog data and structured technical attributes.