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Miniature relays

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Relpol Miniature relay RM85-2011-35-5024 (604651)

Relpol Miniature relay RM85-2011-35-5024 (604651)

Morele.net
€4.23 +VAT
PLN 19.50
  • EAN: 5900005022012
  • Manufacturer: Relpol
Supplier
Morele.net
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Miniature relay 1P 16A 24V AC PCB AgNi RM85-2011-35-5024 604651

Miniature relay 1P 16A 24V AC PCB AgNi RM85-2011-35-5024 604651

TT Partner Artur Krupa
€3.37 +VAT
PLN 15.54
  • EAN: 5900005022012
  • Manufacturer: relpol
Supplier
TT Partner Artur Krupa
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Relpol Miniature industrial relay 2P 5A IP40 R2M-2012-23-5230 - 802541

Relpol Miniature industrial relay 2P 5A IP40 R2M-2012-23-5230 - 802541

Morele.net
€7.93 +VAT
PLN 36.58
  • EAN: 5900005031687
  • Manufacturer: Relpol
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Morele.net
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Voltage free bistable relay 12-230V AC / DC

Voltage free bistable relay 12-230V AC / DC

HEMPIS Sp. z o.o.
€16.77 +VAT
PLN 77.38
  • Manufacturer: ZAMEL SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ
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HEMPIS Sp. z o.o.
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230V AC bistable relay

230V AC bistable relay

HEMPIS Sp. z o.o.
€7.67 +VAT
PLN 35.37
  • Manufacturer: ZAMEL SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ
Supplier
HEMPIS Sp. z o.o.
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Voltage-free bistable relay 230V AC

Voltage-free bistable relay 230V AC

HEMPIS Sp. z o.o.
€16.72 +VAT
PLN 77.15
  • Manufacturer: ZAMEL SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ
Supplier
HEMPIS Sp. z o.o.
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Bistable relay 230V AC PBM-02

Bistable relay 230V AC PBM-02

HEMPIS Sp. z o.o.
€11.98 +VAT
PLN 55.28
  • Manufacturer: ZAMEL SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ
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HEMPIS Sp. z o.o.
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Universal bistable relay 230V AC, 10A PBP-04

Universal bistable relay 230V AC, 10A PBP-04

HEMPIS Sp. z o.o.
€10.54 +VAT
PLN 48.64
  • Manufacturer: ZAMEL SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ
Supplier
HEMPIS Sp. z o.o.
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Relay BIS- 404 2x 5A for the box

Relay BIS- 404 2x 5A for the box

HEMPIS Sp. z o.o.
€13.90 +VAT
PLN 64.12
  • Manufacturer: F&F FILIPOWSKI SPÓŁKA JAWNA
Supplier
HEMPIS Sp. z o.o.
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Relay BIS-413 with shutdown 10A / 230V + contact

Relay BIS-413 with shutdown 10A / 230V + contact

HEMPIS Sp. z o.o.
€14.22 +VAT
PLN 65.59
  • Manufacturer: F&F FILIPOWSKI SPÓŁKA JAWNA
Supplier
HEMPIS Sp. z o.o.
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BIS-403 relay for the box

BIS-403 relay for the box

HEMPIS Sp. z o.o.
€11.82 +VAT
PLN 54.54
  • Manufacturer: F&F FILIPOWSKI SPÓŁKA JAWNA
Supplier
HEMPIS Sp. z o.o.
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Relay BIS- 414 2x10A

Relay BIS- 414 2x10A

HEMPIS Sp. z o.o.
€15.49 +VAT
PLN 71.49
  • Manufacturer: F&F FILIPOWSKI SPÓŁKA JAWNA
Supplier
HEMPIS Sp. z o.o.
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Bistable relay 230V 16A contact 1 NO

Bistable relay 230V 16A contact 1 NO

HEMPIS Sp. z o.o.
€12.89 +VAT
PLN 59.48
  • Manufacturer: F&F FILIPOWSKI SPÓŁKA JAWNA
Supplier
HEMPIS Sp. z o.o.
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Bistable relay with off time 230V AC PBM-03

Bistable relay with off time 230V AC PBM-03

HEMPIS Sp. z o.o.
€13.10 +VAT
PLN 60.43
  • Manufacturer: ZAMEL SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ
Supplier
HEMPIS Sp. z o.o.
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Finder Miniature relay 1P 6A 12V DC (34.51.7.012.0010)

Finder Miniature relay 1P 6A 12V DC (34.51.7.012.0010)

Morele.net
€5.64 +VAT
PLN 26.01
  • Manufacturer: Finder
Supplier
Morele.net
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Relpol Miniature relay RM45N-3021-85-1024 (2614955)

Relpol Miniature relay RM45N-3021-85-1024 (2614955)

Morele.net
€2.46 +VAT
PLN 11.37
  • Manufacturer: Relpol
Supplier
Morele.net
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Wago Miniature relay 24V DC 2P (788-156)

Wago Miniature relay 24V DC 2P (788-156)

Morele.net
€3.61 +VAT
PLN 16.67
  • Manufacturer: Wago
Supplier
Morele.net
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Finder Miniature relay 1P 16A 24V DC AgSnO2 contact (40.61.9.024.4000)

Finder Miniature relay 1P 16A 24V DC AgSnO2 contact (40.61.9.024.4000)

Morele.net
€4.95 +VAT
PLN 22.82
  • Manufacturer: Finder
Supplier
Morele.net
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Finder Miniature relay 3P 10A 24V DC test button mechanical indicator AgNi 60.13.9.024.0040

Finder Miniature relay 3P 10A 24V DC test button mechanical indicator AgNi 60.13.9.024.0040

Morele.net
€11.27 +VAT
PLN 52.02
  • EAN: 8012823050775
  • Manufacturer: Finder
Supplier
Morele.net
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Schneider Electric Miniature relay 1P 15A 24V DC (RPM12BD)

Schneider Electric Miniature relay 1P 15A 24V DC (RPM12BD)

Morele.net
€5.46 +VAT
PLN 25.20
  • Manufacturer: Schneider Electric
Supplier
Morele.net
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Miniature relays

Miniature relays are used in industrial automation systems, intermediary systems and electronic devices. They are implemented both as electromagnetic and semiconductor.

Miniature electromagnetic and semiconductor relays

Electromagnetic and semiconductor relays (SSR) differ from each other in terms of design and the way of making connections. In electromagnetic relays they are performed mechanically, while the SSR contains an optical element (e.g. an optocoupler) and switching is performed by thyristors, triacs (alternistors) and transistors.

Miniature relays keep the advantages and disadvantages of their larger counterparts. It is these features that determine the choice of an SSR or miniature electromagnetic relay in a given case. The most important advantages of semiconductor relays are: durability, mechanical resistance and resistance to pollution, speed of operation, no electromagnetic interference, no electric arc and no moving parts, as well as low power sufficient for actuation and the ability to switch large inrush currents.

In turn, electromagnetic relays are characterized by negligible voltage drops, high resistance to overvoltage and zero leakage current, therefore they are better suited to systems where these features are essential.

Coils and contacts - the most important elements of electromagnetic relays

The basic elements of the construction of electromagnetic relays are coils and contacts. In order for the relay to work, the electromagnet coil must be actuated, i.e. the voltage must be applied to it. The excitation creates a magnetic field, thanks to which the steel armature is attracted, and the contact is closed or opened - depending on its type. The relays use make contacts (Z), which do not conduct current before applying voltage and close when the coil is actuated, normally open contacts (R) conduct current and break the circuit when voltage is applied to the coil, and changeover contacts (P) - switching between two states.

Printed circuits, twilight switches, alarm systems and other automation systems with electromagnetic relays

Electromagnetic miniature relays are widely used in industrial automation systems, residential building installations and control devices. They are the basic elements of automation of alarm systems, lighting control systems or devices such as twilight switches, and even household appliances.

Miniature relays are also used for printed circuits (PCBs), which are used in the assembly of electronic components. They are present in many electronic devices such as a computer, monitor, TV or printer. They are also found in some toys, such as educational robots and programmable dolls or stuffed animals.

Miniature solid state relays

Semiconductor relays are used in automatic systems and control devices. In terms of functionality, SSRs are equivalents of electromagnetic relays and their task is to control the current load with the participation of a power semiconductor component (e.g. triac or thyristor).

Galvanic separation in SSR is realized by means of an optical coupling (optocoupler, optotriac), which separates the input circuit of the relay from the output circuit, i.e. power executive circuit. A solid-state relay provides a much wider spectrum of possibilities than an electromagnetic relay in terms of the type of load control. It allows for a fairly significant increase in the switching frequency, performs load switching off at zero current and provides the possibility to select the moment of load switching. The SSR provides the perfect interface between the low voltage control circuit and the high voltage zone of the electrical circuits. They also enable pulse switching on and off of the flow of electricity from the source to the receiver.