https://www.phoenixcontact.com/pi/products/2987891
Single relay - REL-MR- 24AC/21HC/MS - 2987891
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Plug-in miniature relay, with power contact, 1 PDT, test button, mechanical switch position indicator, status
LED, input voltage 24 V AC
Your advantages
With detectable manual operation
Switching current of up to 16 A
Integrated status LED
Mechanical switch position indicator
DC types with integrated freewheeling diode
Key Commercial Data
Packing unit
Minimum order quantity
GTIN
GTIN
4046356481021
10 pc
10 pc
Technical data
Dimensions
Width
Height
Depth
12.7 mm
29 mm
25 mm
Ambient conditions
Ambient temperature (operation)
Ambient temperature (storage/transport)
-40 °C ... 70 °C
-40 °C ... 85 °C
Coil side
Nominal input voltage U
N
Mains frequency
24 V AC
50/60 Hz
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https://www.phoenixcontact.com/pi/products/2987891
Single relay - REL-MR- 24AC/21HC/MS - 2987891
Technical data
Coil side
Typical input current at U
N
Typical response time
Typical release time range
Power dissipation for nominal condition
32 mA
3 ms ... 12 ms (depending on phase relation)
2 ms ... 8 ms (depending on phase relation)
0.77 W
Contact side
Contact type
Type of switch contact
Contact material
Maximum switching voltage
Minimum switching voltage
Min. switching current
Maximum inrush current
Limiting continuous current
Interrupting rating (ohmic load) max.
Switching capacity in acc. with DIN VDE 0660/IEC 60947
1 PDT
Single contact
AgNi
250 V AC/DC
12 V (at 10 mA)
10 mA (at 12 V)
32 A (20 ms)
16 A
4000 VA (for 250 V AC)
2 A (at 24 V, DC13)
3 A (at 24 V, AC15)
3 A (at 120 V, AC15)
3 A (at 240 V, AC15)
Switching capacity according to IEC 60947-5-1
2 A (at 24 V, DC13)
3 A (at 24 V, AC15)
3 A (at 120 V, AC15)
3 A (at 240 V, AC15)
Motor load according to UL 508
1/2 HP, 120 V AC (N/O contact)
1 HP, 240 V AC (N/O contact)
1/3 HP, 120 V AC (N/C contact)
1/2 HP, 240 V AC (N/C contact)
General
Test voltage relay winding/relay contact
Mechanical service life
5 kV AC (50 Hz, 1 min.)
5x 10 cycles
6
Standards and Regulations
Connection in acc. with standard
Standards/regulations
CUL
EN 61810-1
VDE 0435-201
EN 50178
Environmental Product Compliance
China RoHS
Environmentally friendly use period: unlimited = EFUP-e
No hazardous substances above threshold values
Drawings
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https://www.phoenixcontact.com/pi/products/2987891
Single relay - REL-MR- 24AC/21HC/MS - 2987891
Diagram
2,6
2,4
2,2
2
1,8
1,6
1,4
1,2
1
0,8
0,6
Dimensional drawing
29
12,7
Coil voltage U/UN
0
40 50 60 70 80 90
Ambient temperature [°C]
DC coils, 0 A contact current
DC coils, 16 A contact current
AC coils, 0 A contact current
AC coils, 16 A contact current
10
20
30
100
Operating voltage range
Diagram
20
10
3,6
25
Diagram
1
1
0,9
Switching current [A]
5
2
1
0,5
0,2
0,1
10
Reduction factor
200
300 400 500
0,8
0,7
0,6
0,5
0,4
0,3
1
0,9
0,8
0,7
0,6
0,5
0,4
0,3
0,2
2
20
30
50
70
100
Switching voltage [V]
1
AC, ohmic load
2
DC, ohmic load
COS
j
Interrupting rating
Service life reduction factor with various cos phi
Circuit diagram
A1
A2
12
11
14
Approvals
Approvals
Approvals
UL Recognized / cUL Recognized / VDE Zeichengenehmigung / EAC / cULus Recognized
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https://www.phoenixcontact.com/pi/products/2987891
Single relay - REL-MR- 24AC/21HC/MS - 2987891
Approvals
Ex Approvals
Approval details
UL Recognized
http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/index.htm
FILE E 195083
cUL Recognized
http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/index.htm
FILE E 195083
VDE Zeichengenehmigung
http://www2.vde.com/de/Institut/Online-Service/
VDE-gepruefteProdukte/Seiten/Online-Suche.aspx
40027210
EAC
RU C-
DE.A*30.B.01082
cULus Recognized
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http://www.phoenixcontact.com
PHOENIX CONTACT GmbH & Co. KG
Flachsmarktstr. 8
32825 Blomberg
Germany
Tel. +49 5235 300
Fax +49 5235 3 41200
http://www.phoenixcontact.com
11/06/2018 Page 4 / 4
嵌入式系统
