Finder has introduced a pair of solid state relays for silent, high-speed switching of single and 3-phase loads rated at up to 5A.  The 77 Series relays’ 300A peak current handling capability makes them particularly suitable for use with high inrush current loads, including electronic starters and igniters for fluorescent and gas discharge lamps.

Two 77 Series relay variants are available:  ‘zero-crossover’, minimising voltage and current stresses to improve reliability and greatly reduce EMI, and ‘instant switching’, ensuring a consistent time between relay input and output, of importance where simultaneous switching is desirable as in 3-phase switching.

The relays have a single AC output and can be specified with either AC or AC/DC control inputs for added flexibility.  5kV insulation between input and output assures a high level of application safety and security.  Provided in a compact 17.5mm wide housing for 35mm rail mounting, the 77 Series also features an LED operational status indicator and an integral heat sink.

The solid state relay’s spark- and bounce-free switching characteristics ensure a virtually infinite electrical life, of particular benefit in high-speed, repetitive applications and in domestic and office environments, where electrical interference needs to be kept to the absolute minimum.

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To add a third protective element to fuses and filters, SCHURTER now also offers overvoltage protection components, thereby making it possible for users to obtain all components required for the electrical protection of their electronic appliances from one source.

SCHURTER now offers radial leaded varistors, also referred to as MOV (Metal Oxide Varistors), which help to protect electronic circuits against surge transients, such as can be caused by lightning strikes and switching of contacts and inductive loads. Varistors are suited to a wide variety of applications including switching mode power supplies, ballasts and motor protection used in areas such as industry, telecom and medical technology as well as in consumer goods.

There are different types for various applications fields available: AVTS for secondary protection, AVTP for primary protection, and AVTT for 3-phase applications. The varistors, all approved according to IEC 61051, UL 1449, UL 1414 as well as CSA C22.2 and conforming to RoHS regulations, are available in plastic bags, taped and reeled and in ammo packaging.

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NDK Control Circuit Transformers

1. General Information
* Electric ratings: AC 50Hz/60Hz
* Application: for control power supply of apparatus, partial illumination and indicator light of machine tool and other mechanic equipments
* Standards: IEC/EN 61558

2. Type Designation
* Rated ouput capacity (VA): 25VA~5kVA
* Control Transformer Series

3. Operation conditions
* Temperature: -5C ~ +40C the average value within 1 month should not exceed +30C and within 1 year +20C
* Altitude:≤2000m
* Relative humidity: ≤95%

4. Features
The transformer is characterized by excellent performances, reliable operation, compact design, safe wiring, and wide application, etc.

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