Power relays are capable of switching strong electrical currents. They take the form of a component to be soldered onto a circuit board, mounted on a DIN rail or another support or as a contactor.
Power relays cutting AC voltage are used in electrical machine controls, in heating and air conditioning and in motor and pump controls. Automobiles use DC power relays.
Power relays are single-pole or multi-pole, and are monostable or bistable. The coil's switch-mode voltages and power supply can be DC or AC. These relays are characterized by the nominal current they can switch. The breaking capacity must be superior to the switched current's actual value.
Power contacts are designed to operate without creating electrical arcs as the circuit opens and closes. The electric rigidity between the relay's components indicates the limits of the acceptable voltage.
Special monitoring to power relays mounted on DIN rails are used in electrical installations. They open the circuit to cut off power if a problem is detected. They monitor power factor, phase order and amperage by detecting electrical overloads and isolation defects.
Some power relays are use semiconductor technology. Such solid state devices contain no moving parts.
Breaking capacity (measured in amps), isolation voltage limits and relay pole configuration are the main elements to consider.
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PCB bistable power relay 6 / 6 VDC | K-RP HENGSTLER
Labelling KOO-RP_-4125 Drive System bistabil Voltage nominal 6 / 6 Coil Resistance 25 / 25 Normally Open Contact 0 Normally Closed Contact...
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Power relay 12 A, 0.3 W | 56 Series FINDER France
56 Series - Miniature Power Relays 12 A Sockets 96 Series Miniature...
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Power relay Honeywell Sensing and Control
Small size. Big Control. Offering a diverse line of power relays to amplify, signal transfer, signal conversion, noise...
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Power relay 220 VDC, 10 A | MK-S(X) OMRON
MK-S-series Power Relays with DC Switching Models That Can Switch 220 VDC, 10 A (Resistive Load) * Switch a DC load of 220 VDC, 10 A (resistive load). *...
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Panel mount power relay 725 series DWYER
Power Relays are designed to switch high current loads in the most demanding of applications. By having a high dielectric strength from the coils to the contacts, the relay...
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Magnetic latching power relay max. 3 A | MYK Omron Europe
Magnetic latching relay ideal for memory- and data-transmission circuits Double-winding latch system that holds residual magnetism....
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Slim power relay 3 - 6 A | Slim Series Panasonic Electric Works Europe AG
PRODUCT DESCRIPTION *...
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PCB miniature power relay Yaskawa Controls
Yaskawa's Bestact high capacity 3 and 5 amp reed relays (RI & RZDR- series) offer industry DIP standard mounting format. They have UL/cUL recognition for gaseous...
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PCB miniature power relay 8 A, 250 V, 200 mW COMITRONIC - BTI
1. Compact with high capacity High capacity switching in a small package: 1 Form A, 10 A 250 V AC; 1 Form A 1 Form B and 2 Form A, 8 A 250 V AC. 2. High sensitivity: 200 mW nominal operating power 3. High breakdown voltage Independent...
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PCB power relay 26 series Werner Electric GmbH
26 Series - PC Board Relays Keywords: Relays, board mounting relay, PC board mounting relay, board relay, Power relays, blade relay, relay with LED, single C/O relay, 2 C/O relay, werner relay contact material WERNER`s 26 Series PC Board Relays are the product of your choice if your designs require SPDT or even DPDT abilities...
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Power relay 63 - 690 V | Selco G2000 series Littelfuse
The G2000 Power Relay is intended for detection of power level for protection, control and monitoring purposes. In the default configuration, the G2000 acts as a reverse power relay...
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Power factor monitoring relay D24SC Tele Haase Steuergeräte
Power factor monitoring With 2 independently selectable threshold values and optional temperature monitoring, these devices allow...
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PCB miniature power relay 5 - 10 A TE Connectivity - Schrack Relays
1 pole 5 A, 1 form C (CO) or 1 form A (NO) contact Cadmium-free...
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PCB miniature power relay RELPOL
- contains RM40, RM50, RM84, RM84 SMD, RM85, RM85 inrush, RM85 faston, RM85 SMD, RM85 105 °C, RM87,...
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Miniature solar power relay max. 30 A, 8 310 VA | AZ2150W ZETTLER
FEATURES 1.75 mm contact gap DC coils up to 48V High dielectric...
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Monostable power relay 12 – 48 V DC, 100 – 300 A | PR60 E-T-A
Monostable power relay for single pole disconnection with a variety...
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PCB miniature power relay 16 A | F series Italiana Relè
All-or-Nothing relays ideally suited for any modern electronic application demanding real low profile and minimum power consumption. Design includes...
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Power factor monitoring relay FRAKO
power factor control relay Microprocessor-based control relay for intelligent control of capacitor banks with 12 control contacts. Simple Commissioning By automatic identification of threshold current (c/k...
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RR series relays provide reliable switching for industrial loads. Using pure silver contacts, they are rated up to 10A and 240V AC. Terminals are available in two styles, 8 or 11 pin tubular (octal) or .187" plug-in. Coil voltages range from 6VDC to 240VAC. Carrying...
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Power relay RR series IDEC USA
RR series relays provide reliable switching for industrial loads. Using pure silver contacts, they are rated up to 10A and 240V AC. Terminals are available in two styles, 8 or 11 pin tubular (octal) or .187" plug-in. Coil voltages range from 6VDC to 240VAC. Carrying...
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RR series relays provide reliable switching for industrial loads. Using pure silver contacts, they are rated up to 10A and 240V AC. Terminals are available in two styles, 8 or 11 pin tubular (octal) or .187" plug-in. Coil voltages range from 6VDC to 240VAC. Carrying...
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Power relay 8 - 16 A | 750, 782 ELKO
Power relays plug-in type 750, 782 Power relays plug-in Output contacts: 4/3 x changeover contact/ SPDT 8/16 A Plug-in type. Serves for switching of...
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Power relay 30 A, 277 V AC | SFC Dongguan Sanyou Electrical Appliances
External Dimension(mm) 68.5×34.5×49.0 Contact Capacity 30A 277VAC Coil Power 1.90W,2.50-2.70VA Dielectric...
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Power relay 40 - 50 A | 199 series Magnecraft
The Magnecraft 199 relay is the powerhouse open relay. Standard parts can handle up to 40A and there are options to handle up to 50A. The device is available in...
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Power relay with polarized latching 8 - 20 A, 250 VAC GRUNER
The Leading Supplier of Latching Relays for Energy Management Download Product Range Latching Relays With their superior characteristics and shared design principle, the relays of the 700 series cover a wide variety of energy management functions, such as load management, tariff-switching, disconnect-and-reconnect...
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Power relay with non-polarized latching 12 - 60 kV | E series Ross Engineering
E Series Latching 12kV-60kV For transfer, safety grounding, or tap selection, at 12kV to 60kV peak test. Most HV contacts have full installation above ground,...
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Slim plug-in power relay 6 A | MIRO 6.2 series MURRELEKTRONIK
Coupling modules from Murrelektronik can disconnect, switch, or convert voltage - even where space is at a premium. Our product portfolio comprises a diversity of relay and optocoupler modules that use the practical terminal block format....
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Power factor monitoring relay DWA01, PWA01 CARLO GAVAZZI
- Cos j monitoring relays - Measuring if power factor is within set limits - Measure their own power supply (voltage) and current for balanced...
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Power factor monitoring relay RP81 COMADAN
Load guard for 3-phase motors Power factor metering (cos phi) Adjustable time delay 0-20 sec. at motor start Selectable release of relay at max. or min. load 1-pole relay output 8A / 250 VAC Made in accordance with the CE and EMC regulations The C-mac...
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Reverse power relay 57.7 - 480 V, 2 - 10 A | PAT - PAS series Crompton Instruments
Reverse Power (Current) The Reverse Power protector trip relay monitors a single- or three-phase supply for reverse power and trips a relay if it detects...
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PCB miniature power relay Series 38 O/E/N India Ltd.
Series 38 Mounting Style: Plug-In Contact...
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Power factor monitoring relay FX series Federal Elektrik
FX series reactive power control relays, which are manufactured in accordance with CE, perceives the system current digitally...
