REED RELAYS FOR PHOTOVOLTAIC SYSTEMS

The largescale harvesting of electricity through photovoltaic (PV/solar) cells is extremely popular in the renewable energy sector and continues to reduce our dependence on fossil fuels.
Solar farm efficiency must be high to produce a good ROI, and the most common threat to that efficiency is electrical current leaking to ground. Leaks can be the result of poor installation but, more commonly, they develop over time in the PV panels and in the cables carrying the DC voltage to the inverters for conversion into AC for connection to the grid.
Pickering Electronics has an extensive range of high-performance, high voltage isolation reed relays that are ideally suited to use in PV current leakage monitoring applications. Furthermore, with device footprints starting at just 46 mm2, many relays can be accommodated on a single PCB. We particularly recommend the following series below:
application guide_small

Read our guide to find out more about monitoring photovoltaic solar farm efficiency and how to detect faults in order to prevent power loss, permanent damage, or even fire.

Full contents of the guide:

  • PV System Monitoring
  • Switching Technologies
  • Reed Relay Terminology
  • Recommended Products
  • Why Pickering for Reed Relays?
Series 131 High Voltage Reed Relay

Series 131 Mini SIL up to 1.5 kV

The smallest high voltage relays available. 1 Form A. Up to 1500 V stand-off, 1000 V switching. 3, 5, or 12 V coils. Suitable for mixed signal semiconductor testers.

These SPST N.O. relays switch up to 0.7 Amp, 10 Watts and feature the highest quality, vacuumed, sputtered ruthenium reed switches. An internal mu-metal magnetic screen allows side by side stacking without magnetic interaction.

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High Voltage Reed Relays - Series 119

Series 119 Mini SIL up to 3 kV

Very small isolation reed relays in Form A and Form B configurations. Up to 3000 V stand-off, 1000 V switching. 3, 5 or 12 V coils. Suitable for cable testers.

The Series 119 is a range of Micro-SIL reed relays intended for voltages that are beyond the capabilities of conventional single-in-line reed relays. Insulation resistance >1012Ω. The 1 Form A, 1kV version is pin & package compatible with the industry standard Series 109P.

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Series 104 Mini SIL up to 4kV

Small high voltage reed relays in Form A and Form B. Up to 4000 V stand-off, 1000 V switching. 5, 12 or 24 V coils. Suitable for transformer testing.

Stacking on a 0.25-inch pitch. There is also an option for an electrostatic shield between the switch and the coil to help minimise noise between the coil drive and high voltage circuits. A good choice for automatic test equipment where high voltages are involved. Where mains voltages are switched, for example to control and isolate S.C.R. or triac gates, they are an ideal choice.

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Shop High Voltage Reed Relays for Photovoltaic Systems

The below table will help you narrow down our offering to get you the correct reed relay for your application.

Once you narrow your selections down you can download a reed relay data sheet for more information or request a quote to find out prices and lead times.

PEL Series
3
PEL Contact Configuration
Coil Voltage
Switching Current
(Amps)
Switching Power
(Watts)
PEL Diode
Switching Voltage
(DC/AC peak)
to GO
Stand-off Voltage
(DC/AC peak)
to GO
Width (mm)
to GO
Depth (mm)
to GO
Height (mm)
to GO
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PEL Series: Series 131
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Part Number
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Contact Configuration
Switching Current (Amps)
Switching Power (Watts)
Switching Voltage (DC or AC peak)
Stand-off Voltage (DC or AC peak)
Coil Voltage
Coil Resistance (Ω)
Switch Type
Diode
Depth (mm)
Width (mm)
Height (mm)
View Datasheet
Sample Service
Stock
Price
Add to Bag
1 Form A - SPST N.O.
1
Amps
25
1000
1500
12V
1000 Ω
1.5kV Standoff
Yes
6.22
24.1
8.13
Request a Free Sample
11
$15.90
Max: 11
Min: 1
Step: 1
Add
2 Form A - DPST N.O.
1
Amps
25
1000
1500
24V
2000 Ω
1.5kV Standoff
Yes
6.22
29
12.5
Request a Free Sample
0 - MTO
$21.97
1 Form A - SPST N.O.
1
Amps
25
1000
3000
5V
220 Ω
3kV Standoff
No
6.22
24.1
8.13
Request a Free Sample
0 - MTO
$18.04
1 Form A - SPST N.O.
1
Amps
25
1000
4000
12V
500 Ω
1.5kV Standoff
Yes
6.22
24.1
8.1
Request a Free Sample
0 - MTO
$19.41
1 Form B - SPST N.C.
1
Amps
25
1000
2000
5V
750 Ω
2kV Standoff
Yes
6.22
29
12.5
Request a Free Sample
0 - MTO
$21.29
1 Form A - SPST N.O.
1
Amps
10
1000
1500
12V
1000 Ω
1.5kV Standoff
No
6.22
24.1
8.13
Request a Free Sample
31
$15.39
Max: 31
Min: 1
Step: 1
Add
2 Form A - DPST N.O.
1
Amps
25
1000
1500
24V
2000 Ω
1.5kV Standoff
No
6.22
29
12.5
Request a Free Sample
0 - MTO
$21.46
114151620
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