PLC-RPT- 24UC/21AU/RW - Relay module

2900321

PLC-INTERFACE for railway applications, consisting of basic terminal block with Push-in connection and plug-in miniature relay with multi-layer gold contact, range: 0.7 x U_N to 1.25 x U_N, temperature class TX: -40°C to +70°C, 1 changeover contact, input voltage 24 V DC

Product details

Product type	Relay Module
Product family	PLC-INTERFACE
Application	Railway applications
Installation location	Attached to the vehicle body
Operating mode	100% operating factor
Mechanical service life	approx. 2x 10⁷ cycles
Insulation characteristics
Overvoltage category	III
Pollution degree	2
Data management status
Date of last data management	12.09.2025

Maximum power dissipation for nominal condition	0.22 W
Test voltage (Winding/contact)	4 kV_rms (50 Hz, 1 min., winding/contact)
Rated insulation voltage	250 V AC
Rated surge voltage	6 kV

Coil side
Nominal input voltage U_N	24 V DC
Input voltage range	18.5 V DC ... 33.6 V DC
Input voltage range in reference to U_N	0.7 ... 1.25
Nominal voltage (plugged-in electromechanical relay)	12 V DC
Drive and function	monostable
Drive (polarity)	polarized
Typical input current at U_N	9 mA
Typical response time	4 ms
Typical release time	4 ms
Protective circuit	Surge protection; Freewheeling diode
	RCZ filter
	Wide-range electronics
Operating voltage display	Yellow LED

Switching
Contact switching type	1 changeover contact
Type of switch contact	Single contact
Contact material	AgSnO, hard gold-plated
Maximum switching voltage	30 V AC
	36 V DC
Minimum switching voltage	100 mV (10 mA)
Limiting continuous current	50 mA
Maximum inrush current	50 mA
Min. switching current	1 mA (24 V)
Short-circuit current	200 A (conditional short-circuit current)
Interrupting rating (ohmic load) max.	1.2 W (at 24 V DC)
Output fuse	4 A gL/gG NEOZED
Switching capacity	1 A (24 V (DC13))
	0.2 A (110 V (DC13))
	0.1 A (220 V (DC13))
	3 A (24 V (AC15))
	3 A (120 V (AC15))
	3 A (230 V (AC 15))
Switching: when the gold layer is destroyed
Note	the following values are applicable if a gold layer is destroyed
Maximum switching voltage	250 V AC/DC (Separating plate PLC-ATP must be installed for voltages larger than 250 V (L1, L2, L3) between identical terminal blocks in adjacent modules.)
Minimum switching voltage	12 V AC/DC
Limiting continuous current	6 A
Min. switching current	10 mA
Interrupting rating (ohmic load) max.	140 W (at 24 V DC)
	20 W (at 48 V DC)
	18 W (at 60 V DC)
	23 W (at 110 V DC)
	40 W (at 220 V DC)
	1500 VA (for 250 V AC)
Switching capacity	2 A (at 24 V, DC13)
	0.2 A (at 110 V, DC13)
	0.1 A (at 220 V, DC13)
	3 A (at 24 V, AC15)
	3 A (at 120 V, AC15)
	3 A (at 230 V, AC15)

Connection method	Push-in connection
Stripping length	10 mm
Conductor cross-section rigid	0.14 mm² ... 2.5 mm²
Conductor cross-section flexible	0.14 mm² ... 2.5 mm²
	0.2 mm² ... 2.5 mm² (Single ferrule)
	2x 0.5 mm² ... 1 mm² (TWIN ferrule)
Conductor cross-section AWG	26 ... 14

Width	6.2 mm
Height	80 mm
Depth	94 mm

Color	gray (RAL 7042)
Flammability rating according to UL 94 (Housing)	V0 (Housing)

Ambient conditions
Degree of protection (Relay)	RT III (Relay)
Degree of protection (Relay base)	IP20 (Relay base)
Ambient temperature (operation)	-40 °C ... 70 °C (Temperature class TX)
Ambient temperature (storage/transport)	-40 °C ... 85 °C

CE
Certificate	CE-compliant
UKCA
Certificate	UKCA-compliant
Shipbuilding approval
Certificate	TAE0000196
Corrosive gas test
Identification	ISA-S71.04. G3 Harsh Group
	EN 60068-2-60
Shipbuilding data
Temperature	D
Humidity	A
Vibration	B/C
EMC	B
Enclosure	Required protection according to the Rules shall be provided upon installation on board

Electromagnetic compatibility	Conformance with EMC directive
Low Voltage Directive	Conformance with Low Voltage Directive

Standards/regulations	IEC 60947-5-1
	EN 50155 (VDE 0115 part 200)
	EN 61373
	EN 50121

Mounting type	DIN rail mounting
Assembly note	in rows with zero spacing
Mounting position	any

Commercial data

Item number	2900321
Packing unit	10 pc
Minimum order quantity	1 pc
Sales key	DK62AL
Product key	DK62AL
GTIN	4046356510042
Weight per piece (including packing)	33,275 g
Weight per piece (excluding packing)	33 g
Customs tariff number	85364190
Country of origin	DE

Classifications

Approvals

Environmental product compliance

Compatible products

Accessories

Your advantages

Optimum relay operation thanks to wide-range electronics

Certified in accordance with EN 50155

Vibration and shock resistance in accordance with EN 50155

Safe isolation between coil and contact side

Temperature range: -40 °C ... + 70 °C (short-term 85 °C)

Input voltage range of 0.7 to 1.25 x UN (1.4 x UN briefly)

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: 7439-92-1)
SCIP	0a7d6da6-fee0-47ff-87c1-a60cc1791c14

Automate

Connect

Mark, assemble, and install

Supply, charge, and protect

Switch, Measure and Monitor

PLC-RPT- 24UC/21AU/RW - Relay module

2900321

Product details

ECLASS

ETIM

UNSPSC

EAC

DNV GL

cULus Listed

cUL Recognized

UL Recognized

UL Listed

cUL Listed

Compatible products

Your advantages

Automate

Connect

Mark, assemble, and install

Supply, charge, and protect

Switch, Measure and Monitor

PLC-RPT- 24UC/21AU/RW - Relay module 2900321

Product details

ECLASS

ETIM

UNSPSC

Compatible products

FBST 500-PLC RD - Continuous plug-in bridge 2966786

FBST 500-PLC BU - Continuous plug-in bridge 2966692

FBST 500-PLC GY - Continuous plug-in bridge 2966838

FBST 6-PLC RD - Single plug-in bridge 2966236

FBST 6-PLC BU - Single plug-in bridge 2966812

FBST 6-PLC GY - Single plug-in bridge 2966825

FBST 8-PLC GY - Single plug-in bridge 2967688

ZB 6:UNBEDRUCKT - Zack marker strip 1051003

ZB 6 CUS - Zack marker strip 0824992

ZB 6,LGS:L1-N,PE - Marker for terminal blocks 1051414

ZB 6,LGS:U-N - Marker for terminal blocks 1051430

UC-TM 6 - Marker for terminal blocks 0818085

UC-TM 6 CUS - Marker for terminal blocks 0824589

UCT-TM 6 - Marker for terminal blocks 0828736

UCT-TM 6 CUS - Marker for terminal blocks 0829602

NS 35/ 7,5 PERF 2000MM - DIN rail perforated 0801733

NS 35/ 7,5 UNPERF 2000MM - DIN rail, unperforated 0801681

NS 35/ 7,5 WH PERF 2000MM - DIN rail perforated 1204119

NS 35/ 7,5 WH UNPERF 2000MM-VPE 10 - DIN rail, unperforated 1204122

NS 35/ 7,5 AL UNPERF 2000MM - DIN rail, unperforated 0801704

NS 35/ 7,5 ZN PERF 2000MM - DIN rail perforated 1206421

NS 35/ 7,5 ZN UNPERF 2000MM - DIN rail, unperforated 1206434

NS 35/ 7,5 CU UNPERF 2000MM-VPE 10 - DIN rail, unperforated 0801762

NS 35/ 7,5 CAP - End cap 1206560

NS 35/15 PERF 2000MM - DIN rail perforated 1201730

NS 35/15 UNPERF 2000MM - DIN rail, unperforated 1201714

NS 35/15 WH PERF 2000MM - DIN rail perforated 0806602

NS 35/15 WH UNPERF 2000MM-VPE 10 - DIN rail, unperforated 1204135

NS 35/15 AL UNPERF 2000MM - DIN rail, unperforated 1201756

NS 35/15 ZN PERF 2000MM - DIN rail perforated 1206599

NS 35/15 ZN UNPERF 2000MM - DIN rail, unperforated 1206586

NS 35/15 CU UNPERF 2000MM-VPE 10 - DIN rail, unperforated 1201895

NS 35/15 CAP - End cap 1206573

NS 35/15-2,3 UNPERF 2000MM-VPE 10 - DIN rail, unperforated 1201798

PLC-ATP BK - Separating plate 2966841

PLC-ESK GY - Power terminal block 2966508

SZF 1-0,6X3,5 - Screwdriver 1204517

REL-MR- 12DC/21AU - Single relay 2961163

Your advantages

PLC-RPT- 24UC/21AU/RW - Relay module

2900321