Single-phase protection relays

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Single-phase protection relays | Choosing the Right Protection Relay
Before you buy a protective relay, there are a few more things to bear in mind: What is the current used in your grid? It is essential to know what type of current is used in the grid for which the relay is intended: direct current, alternating current, single-phase, or three-phase. What incidents do you want to prevent? You can configure the relay to trigger when it detects certain faults or malfunctions that you have previously defined. The relay actuates...
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over-voltage protection relay
over-voltage protection relay
111-INSIDER-P

Trigger voltage: 133 V

... its output relay and directly disconnects the pump motor. The relay then begins its user-selectable restart delay (dry-well recovery) timer. When the timer counts to zero or power is removed and reapplied, ...

distance protection relay
distance protection relay
SIPROTEC 7SA series

... distance protection have been designed particularly for the protection of lines in medium-voltage and high-voltage systems. With the high-performance DIGSI 4 engineering tool, the SIPROTEC 4 devices offer user friendly ...

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SIEMENS Energy automation and smart grid
over-current protection relay
over-current protection relay
SEL-351S

... Protection System The SEL-351S Protection System offers comprehensive feeder and overcurrent protection perfect for industrial and utility feeder applications. Enhance your quality of ...

current protection relay
current protection relay
3CR series

Tripping current: 15 A

... 3CR series current type motor starting relay is designed for single- phase AC applications with motor start winding currents up to 15 Amps. It is applicable on both split phase and capacitor ...

current protection relay
current protection relay
4CR series

Tripping current: 25 A

... KLIXON® 4CR current type motor starting relay is a compact, high capacity relay, designed for universal application to split phase and capacitor start, single- phase motors ...

earth-leakage protection relay
earth-leakage protection relay
RG1M series

... Tripped relay. Power LED flashing and leakage LED ON. Detection of a transformer continuity fault Applications The RG1M relays combined with the WG / WGC transformer provides complete differential protection, ...

earth-leakage protection relay
earth-leakage protection relay
RGE series

... Permanently: 100 % Applications The relays of the RGE series and the transformer of the WG / WGC series enable a full earth leakage protection for both single and three- phase lines. ...

over-voltage protection relay
over-voltage protection relay
SIU-C

Trigger voltage: 24 V - 230 V

... SIU-C represents the best and most precise protection solution for transformers and electrical machines in high, medium, and low-voltage distribution systems. The SIU-C is a voltage and frequency protection relay ...

overload relay
overload relay
PS11-R, PS16R

Trigger voltage: 230, 115 V

... The PS-R single- phase devices in this series are underloaded by undercurrent, and operated without any requirements in terms of level sensors for dry running. The single- phase motors ...

phase loss protection relay
phase loss protection relay
MPR-6M

Trigger voltage: 85 V - 265 V

... sound and light alarm, remote control, and automatic tripping. - Protection function: Overvoltage, Undervoltage, Overcurrent stall, Undercurrent, Overload, Underload, Phase failure ( Phase ...

earth-leakage protection relay
earth-leakage protection relay
DER4B/2D

Tripping current: 0.03 A - 30 A
Trigger voltage: 48 V - 400 V

... Din modules Dossena presents the DER4B range, the new generation of type B differential toroid relays. DER4B is recommended for electrical protection in the tertiary sector, where devices that generate alternating, ...

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DOSSENA
earth-leakage protection relay
earth-leakage protection relay
DER4B/2I

Tripping current: 0.03 A - 30 A
Trigger voltage: 48 V - 400 V

... Recessed 96x96mm Dossena presents the DER3B range, the new generation of type B differential toroid relays. DER3B is recommended for electrical protection in the tertiary sector, where devices that generate alternating, ...

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DOSSENA
earth-leakage protection relay
earth-leakage protection relay
DER4/0D

Tripping current: 0.03 A - 30 A
Trigger voltage: 48 V - 400 V

... The residual current relays of the DER4 Dossena range can be used on LV networks in alternating current of the TT and TN type. They make it possible to achieve adequate selectivity and residual current protection thanks ...

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DOSSENA
under-voltage protection relay
under-voltage protection relay
FPC 400

Tripping current: 5,000, 1 mA

... FPC 400 is a family of current or voltage digital protection relays with easy to use interface meant for variety of solutions in industry and power distribution. Its robust design enables it to be placed in demanding ...

over-voltage protection relay
over-voltage protection relay
PAO series

Trigger voltage: 24, 240 V

... set point level Imax, the protector will trip and the red LED will illuminate indicating the fault condition. During the time delay period the red LED will flash for the set time (t) before the relay ...

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Crompton Instruments
over-voltage protection relay
over-voltage protection relay
VPRD2M

Tripping current: 5 A
Trigger voltage: 127 V - 288 V

... • 3 phase and single phase RMS voltage protection relay • Monitors: Over / Under Voltage, Phase asymmetry, Phase failure, Phase ...

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SELEC Controls Pvt. Ltd.
current protection relay
current protection relay
RM2I

... Current relay 2 Module Min or max alarm, selectable on field Input 5A or 1A Adjustable set point, hysteresis and delay Field selectable negative or positive security (fail safe) Intervention inhibition when turning ...

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IME Spa
grid and system protection relay
grid and system protection relay
NA003-M64

Trigger voltage: 24, 110 V

... Grid protection monitoring relay RE series; Frequency and voltage monitoring; Grid and system protection; Functionally Safe; Measuring voltage 3 x 400/230V AC; Supply voltage 24V DC, 110-240V AC; 3 CO ...

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TELE Haase Steuergeraete GmbH
temperature protection relay
temperature protection relay
RZ1PK116

Trigger voltage: 115 V - 240 V

over-current protection relay
over-current protection relay
MS2C139

... Vibration monitors only operate after bearing damage has occurred. By applying the shaft overcurrent protection relay type MS2C139 together with a special current transformer, the machine can be tripped ...

level protection relay
level protection relay
MC Line

... DIGITAL RELAYS FOR PROTECTION, MONITORING AND CONTROL The MC line has been designed to offer to the market a very competitive protective relay responding to the latest requirements ...

overload relay
overload relay
MBS series

... This offers uxiliary, alarm connections and a specific version for single phase motors. The breaker provides motor protection when used with contactors. ...

single-phase protection relay
single-phase protection relay

Tripping current: 63 A
Trigger voltage: 275, 175 V

... under voltage protective device considered modular design. The circuit board adopted good quality Latching relays and others components with reliable performance. When the power supply is unstable (voltage is too high ...

over-voltage protection relay
over-voltage protection relay
KPFV51x series

Trigger voltage: 100 V - 480 V

... KPFV51x - SINGLE PHASE - FREQUENCY AND VOLTAGE GUARD Under and Over Voltage and Frequency Protection Adjustable Voltage and Frequency Deviation Set points "Pathfinder" function Optional very ...

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Meagacon AS
over-voltage protection relay
over-voltage protection relay
RMV-142D

Tripping current: 8 A
Trigger voltage: 250 V

... DEIF's RMV protective voltage relays are applied for generator, motor and transformer protection against adverse system voltage conditions. The versatile unit features a number of adjustable parameters. DEIF's ...

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DEIF
overload relay
overload relay
T series

Tripping current: 3 A - 50 A

... 3/4 inch Motor Protector for single phase motors like hermetic compressors or water pumps from 1/20HP to about 1HP. Various configurations available. Available for automatic or manual reset. ...

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Electrica s.r.l.
overload relay
overload relay
T— Protector

Tripping current: 0.6 A - 25 A
Trigger voltage: 115 V

... T motor protector is designed to protect single phase induction motors against overload and locked rotor conditions up to 65AI • AUTOMATIC RESET: Main application is protection of hermetic ...

phase loss protection relay
phase loss protection relay
TPM5

Tripping current: 5 A

... Protection relay against overload, underload, and phase loss. With display. Codes and references - 10002217 TPM5-230 - 10002218 TPM5-400 - 10002451 TPM5/5-230 - 10002452 TPM5/5-400 Specifications - ...

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Toscano Linea Electronica
thermal protection relay
thermal protection relay
T119

Trigger voltage: 24 V - 240 V

... Any sensor or unit anomaly is signalled as a fault alarm. Accessories and options The T119 thermal protection relay ensures the safety of dry or resin-coated transformers: Standard distribution ...

current protection relay
current protection relay
S91

Tripping current: 0 A - 16 A
Trigger voltage: 220 V - 415 V

... modes: single- phase or three- phase measurement, maximum current range 5 or 16 A, operation with or without PTC. Available model for 230V power supply (S91), and model for 380V power supply (S91-400). Main ...

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