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Manufacture of Sensor and Magnetic Components
Series Datasheet – MRX Reed Relays
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MRX Series
Reed Relays
Features: Ex-Approved for Intrinsic Safety Circuits
Applications: Process Automatization in Refineries, Mining and Chemical Industry & Others
Markets: Explosive Environment & Others
Part Description:
MRX 00-0X00
Nominal Voltage
05, 12, 24
Contact QTY
1, 2, 4
Contact Form
A, C
Switch Model
21
5
100
0.25
0.5
150
0.25
2.5
2
10
9
0.8
71
10
200
0.5
1.25
150
0.3
0.5
0.1
10
10
0.3
79
10
250
0.5
1
150
0.4
0.5
0.2
10
11
0.4
Switch Model
21, 71, 79, 90
Customer Options
Contact Data
Rated Power (max.)
Any DC combination of V&A not to exceed their individual max.’s
90
7
28
0.24
0.5
150
0.25
2
2
10
9
1.0
Unit
W
V
A
A
mOhm
kVDC
ms
ms
Ohm
pF
Switching Voltage (max.)
DC or peak AC
Switching Current (max.)
DC or peak AC
Carry Current (max.)
DC or peak AC
Contact Resistance (max.)
@ 0.5V & 50mA
Breakdown Voltage (min.)
According to EN60255-5
Operating Time (max.)
Incl. Bounce; Measured with w/ Nominal Voltage
Release Time (max.)
Measured with no Coil Excitation
Insulation Resistance (typ.)
Rh<45%, 100V Test Voltage
Capacitance (typ.)
@ 10kHz across open Switch
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Asia:
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Version 01
27.01.2015
Modifications in the sense of technical progress are reserved.
A Global Leader in the Design, Development, and
Manufacture of Sensor and Magnetic Components
Series Datasheet – MRX Reed Relays
Coil Data
Contact Switch
Form
Model
Unit
1A
71
79*
71
79**
71
21***
90
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Coil Voltage
(nom.)
VDC
05
12
24
05
12
24
24
05
12
24
Coil Resistance
(typ.)
Ohm
360
305
5,880
250
890
1,000
1,780
360
305
5,880
Pull-In Voltage
(max.)
VDC
3.8
9
18
3.8
9
18
18
3.8
9
18
Drop-Out Voltage
(min.)
VDC
1.0
2
3.5
1.0
2
3.5
3.5
1.0
2
3.5
Nominal Coil Power
(typ.)
mW
70
110
100
100
260
165
320
70
110
100
2A
4A
1C
The Pull-In / Drop-Out Voltage and Coil Resistance will change at rate of 0.4% per °C.
*1A79 only available with Coil Voltage 12 ** 2A79 only available with Coil Voltage 24 ***1C21 only available with Coil Voltage 05 & 12
Environmental Data
Shock Resistance (max.)
1/2 sine wave duration 11ms
Unit
50
20
-20 to 85
-40 to 105
260
g
g
°C
°C
°C
MRX Reed Relay
Vibration Resistance (max.)
Operating Temperature
Storage Temperature
Soldering Temperature (max.)
5 sec. max.
Handling & Assembly Instructions
Switching inductive and/or capacitive loads create voltage
and/or current peaks, which may damage the relay.
Protective circuits need to be used.
External magnetic fields needs to be taken into
consideration, including a too high packing density. This may
influence the relays’ electrical characteristics.
Mechanical shock impacts e.g. dropping the relays may cause
immediate or post-installation failure.
Wave soldering: maximum 260°/5 seconds.
Reflow soldering: Recommendations given by the soldering
paste manufacturer need to be considered as well as the
temperature limits of other components/processes.
Life Test Data
*Load increase reduces life expectancy of Reed Switches
USA:
Europe:
Asia:
+1.866.782.6339
+49.7731.8399.0
+86.21.37820625
│
salesusa@standexmeder.com
│ info@standexmeder.com
│ salesasia@standexmeder.com
Version 01
27.01.2015
Modifications in the sense of technical progress are reserved.
A Global Leader in the Design, Development, and
Manufacture of Sensor and Magnetic Components
Series Datasheet – MRX Reed Relays
Glossary Contact Form
Form A
Form B
Form C
NO = Normally Open Contacts
SPST = Single Pole Single Throw
NC = Normally Closed Contacts
SPST = Single Pole Single Throw
Changeover
SPDT = Single Pole Double Throw
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Pin Out
Top View
USA:
Europe:
Asia:
+1.866.782.6339
+49.7731.8399.0
+86.21.37820625
│
salesusa@standexmeder.com
│ info@standexmeder.com
│ salesasia@standexmeder.com
Version 01
27.01.2015
Modifications in the sense of technical progress are reserved.
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