https://www.phoenixcontact.com/us/products/2987888
Single relay - REL-MR- 24DC/21HC/MS - 2987888
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Plug-in miniature relay, with power contact, 1 PDT, test button, mechanical switch position indicator, status LED,
freewheeling diode, polarity A1+, A2-, input voltage 24 V DC
Product Features
■
■
■
■
■
With detectable manual operation
Integrated status LED
Switching current of up to 16 A
Mechanical switch position indicator
DC types with integrated freewheeling diode
Key Commercial Data
Packing unit
Minimum order quantity
Weight per Piece (excluding packing)
Custom tariff number
Country of origin
1 pc
10 pc
18.0 g
85364190
China
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
24 V DC
04/22/2016 Page 1 / 6
https://www.phoenixcontact.com/us/products/2987888
Single relay - REL-MR- 24DC/21HC/MS - 2987888
Technical data
Coil side
Input voltage range in reference to U
N
Typical input current at U
N
Typical response time
Typical release time
Power dissipation for nominal condition
see diagram
18 mA
9 ms
6 ms
0.43 W
Contact side
Contact type
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
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)
General
Test voltage relay winding/relay contact
Mechanical service life
Standards/regulations
5 kV AC (50 Hz, 1 min.)
5 x 10 cycles
DIN EN 61810-1
VDE 0435-201
EN 50178
IEC 62103
6
Standards and Regulations
Connection in acc. with standard
Standards/regulations
CUL
DIN EN 61810-1
VDE 0435-201
EN 50178
IEC 62103
Classifications
eCl@ss
eCl@ss 4.0
27371104
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https://www.phoenixcontact.com/us/products/2987888
Single relay - REL-MR- 24DC/21HC/MS - 2987888
Classifications
eCl@ss
eCl@ss 4.1
eCl@ss 5.0
eCl@ss 5.1
eCl@ss 6.0
eCl@ss 7.0
eCl@ss 8.0
eCl@ss 9.0
27371104
27371001
27371001
27371001
27371001
27371601
27371601
ETIM
ETIM 2.0
ETIM 3.0
ETIM 4.0
ETIM 5.0
EC000196
EC000196
EC000196
EC001437
UNSPSC
UNSPSC 6.01
UNSPSC 7.0901
UNSPSC 11
UNSPSC 12.01
UNSPSC 13.2
30211916
39121515
39121515
39121515
39121515
Approvals
Approvals
Approvals
UL Recognized / VDE Zeichengenehmigung / cUL Recognized / EAC / EAC / cULus Recognized
Ex Approvals
Approvals submitted
Approval details
04/22/2016 Page 3 / 6
https://www.phoenixcontact.com/us/products/2987888
Single relay - REL-MR- 24DC/21HC/MS - 2987888
Approvals
UL Recognized
VDE Zeichengenehmigung
cUL Recognized
EAC
EAC
cULus Recognized
Accessories
Required add-on products
Relay socket - PR1-BSC3/2X21 - 2833521
Relay socket PR1..., for miniature power relay or miniature switching relay with 1 or 2 PDT or solid-state relay of same
construction, 1/3 level design, screw connections, connection facility for input/interference suppression modules
Relay socket - PR1-BSP3/2X21 - 2833534
Relay socket PR1..., for miniature power relay or miniature switching relay with 1 or 2 PDT or solid-state relay of same
construction, 1/3 level design, spring-cage connections, connection facility for input/interference suppression modules
Drawings
04/22/2016 Page 4 / 6
https://www.phoenixcontact.com/us/products/2987888
Single relay - REL-MR- 24DC/21HC/MS - 2987888
Dimensional drawing
29
12,7
Diagram
2,6
2,4
2,2
2
1,8
1,6
1,4
1,2
1
0,8
0,6
3,6
Coil voltage U/U
N
25
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
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
04/22/2016 Page 5 / 6
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