RI-tech s.r.o. > Products > Industry > Power Utility > Auxiliary, trip and supervision relays

Auxiliary, trip and supervision relays

  • Alpha AR High Performance Auxiliary Relays

     The Alpha AR Series represents a new generation of electro-mechanical tripping relays for power utility protection and control applications. The AR is built on the Alpha relay platform and provides high performance and reliability while reducing production and supply lead times. Application of the AR auxiliary relays ensures reliable multi-contact operation combined with a high visibility mechanical flag. Five (5) contact version:                    AR5 Twelve (12) contact version:            AR12 2x Five…

  • Alpha TR High Speed Tripping Relay

     The Alpha TR Series represents a new generation of high speed electro-mechanical tripping relays for power utility protection and control applications. The TR is built on the Alpha relay platform and provides high performance and reliability while reducing production and supply lead times. Application of the TR multi-contact high-speed trip relays ensures fast operation of less than 8 ms. The unique patented design and topology ensures minimal contact bounce. (more…)

  • Alpha XR High reliability supervision relays

     The Alpha XR Series Relays are low burden electro-mechanical supervision relays for application on high security tripping and auxiliary supply circuits. The Alpha XR relays have been designed to provide a balance of low burden to minimize the possibility of circuit breaker mal-operation while maintaining a minimum contact whetting current to avoid nuisance alarm conditions. A key feature of the design is a high visibility flag indicator that can only…

  • D series, instantaneous power relays

     D relays, 4 C/O, 10A Heavy duty relays for demanding applications, switching of AC&DC voltages, resistive and/or inductive loads. Plug-in power relay Smitt-style pinning 4 C/O contacts Rated load 1 A /110 VDC1 , 10A/230 VAC1 Coil voltages 12...350 VDC, 12...440 VAC AC & DC coil (DC coil standard with back EMF diode) LED indicator Integrated 'snap-lock' retaining clip Dimensions 40 x 40 x 53 mm See the datasheet in the download section for all…

  • D-B series, high DC breaking capacity relays

     D-B relays, 4C/O, up to 7A/110V DC1 Heavy duty relays for demanding applications. Integrated magnetic arc blow-out function for higher DC breaking capacity. Plug in relay Smitt-style pinning 4 C/O contacts Rated load 7A /110V DC1 , 10A/230V AC1 Coil voltages 12...350VDC, 12...440VAC AC&DC coil, DC with standard back EMF diode LED indicator Integrated 'snap-lock' retaining clip Magnetic arc blow-out (option B) Dimensions 40 x 40 x 53 mm

  • D-R4, fast relay (pull-in)

     D-R4, fast relay (pull-in) Heavy-duty, fast relay for demanding applications. Fast switching/pull-in Plug in relay Fast switching Smitt-style pinning 4 C/O contacts Rated load 1A /110V DC1 Coil voltages 6...220VDC DC coil Integrated 'snap-lock' retaining clip Back EMF diode Dimensions 40 x 40 x 53 mm

  • Delta ARD4 Compact electro-mechanical auxiliary relays

     The Delta ARD4 relay provides a robust and reliable interface between protection and control system circuits. A more economical alternative to traditional auxiliary relays, the Delta ARD4 provides a compact, flexible and high performance solution while meeting relevant IEC standards. A wide voltage range and standard hand reset flag reduces the number of model variations. The Delta range is packaged in a size 2, 2U high case that may be…

  • Delta TRD4 Compact electro-mechanical tripping relays

     The Delta TRD4 is a high speed, high burden electro-mechanical tripping relay for power utility protection and control applications. The TRD4 is built on the Delta relay platform providing high performance and reliability while reducing production and supply lead times. Application of the Delta TRD4 multi-contact high-speed trip relays ensures fast operation of less than 10 ms. (more…)

  • Delta XRD Compact supervision relay

     The Delta XR Series Relays are low burden electro-mechanical supervision relays for application on high security tripping and auxiliary supply circuits. The Delta XR relays have been designed to provide a balance of low burden to minimize the possibility of circuit breaker maloperation while maintaining a minimum contact whetting current to avoid nuisance alarm conditions. (more…)

  • Delta XRD-8 Trip Circuit Supervision Relay

     Features Trip circuit supervision for magnetic actuator circuit breakers Auxiliary supply supervision Green Supervision healthy LED Self-reset red Supervision Fail LED Two C/O alarm contacts Rated auxiliary voltages available for 24, 30/32, 48, 110, 125, 220, 240 or 250V dc Panel, rack or rail mount options Compact size 2, 2U high case Plug-in terminal block M4 screw terminals Application The Delta XRD-8 has been designed to specifically operate with magnetic…

  • Delta-Flex

     Modular auxiliary relay system Delta-Flex (more…)

  • TCM Trip Circuit Manager

     The TCM System is a modular and cost-effective high-performance tripping relay with integrated supervision functions designed for power utility protection and control applications. The TCM System provides a robust and reliable high-speed interface between the protection system and the circuit breaker. A more economical alternative to traditional tripping relays, the TCM provides a compact, flexible and high-performance solution to meet applicable IEC standards. A wide voltage range, high burden operation…

  • V34 relay socket

     Features Relay sockets with rear M4 screw connections For use with relays in the Mors Smitt D series housing Suits 14 terminal relays Suitable for surface mounting with rear connection Optional flush panel mount adaptor kits Description The V34 socket provides a rear screw connection option to suit a range of Mors Smitt plug in relay types that use the D series housing, including: D series BD series Timers Optional…