• Protects power semiconductors from thermal runaway
• Integrated current measuring sensor (shunt)
• SMD reflow solderable up to 260 °C
• Meets requirements according to AECQ

Schurter's RTS thermal fuse, successfully launched in 2018, gets a new variant with an integrated shunt. The RTS is a particularly compact overtemperature protection device for power semiconductors in SMD technology for highest demands.

RTS stands for Reflowable Thermal Switch. It was developed to protect highly integrated power semiconductors from overheating. Prior to mechanical activation, the new thermal fuse can be soldered on conventional reflow soldering machines with profiles up to 260 °C.

Minimal Footprint
The new overtemperature protection device comes in the same minimal dimensions and maximum breaking capacity despite its additional shunt functionality. On its small 6.6 x 8.8 mm footprint the RTS can handle operating currents of up to 130 A and rated voltages of up to 60 VDC.

Integrated Current Measuring Sensor (Shunt)
The shunt version has an integrated resistance with particularly low temperature dependence. This resistance, known as a shunt, enables precise current measurement and enables an additional – non-thermal – circuit protection, e.g. via a controller.

Protection Against Thermal Runaway
Thermal runaway refers to the overheating of a power semiconductor due to a self-reinforcing, heat-producing process. One of the reason is the trend towards increasing power density and miniaturization of electronic circuits. The RTS protects these power semiconductors against thermal runaway. In such an event, the thermal fuse reliably interrupts the circuit at a precisely defined temperature as a fail-safe device.

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• First IEC connector system on the market for 400 VDC according to TS 62735-1 (2.6 kW)
• Designed for PDU and UPS in Data Center
• Various terminal options
• Safe disconnect under load

With the GP21 plug connector and the GS21 socket-outlet, SCHURTER launches the world's first UL approved IEC TS 62735-1 standardized DC connector system designed to enable efficient DC power distribution in data centre power distribution strips and UPS.

With a complete DC power supply architecture, from source to load, the cost-intensive and failure-prone transformations and conversions, including their components, are completely eliminated. Operational reliability increases with improved efficiency.

In the digital age, vast quantities of DC-powered devices are in use: consumer electronics, industrial IT, communications technology, and electric vehicles to name a few. New technologies are beginning to emerge to enable direct current at the source of supply, which in turn is driving the establishment of standards.

Direct current improves the quality of the power being supplied. Problems with harmonics and harmonic distortions are eliminated. Phase compensation is also not necessary. Furthermore, coupling synchronization to different sources and networks is no longer necessary.

IEC TS 62735-1
The new standard for DC power distribution up to 2.6 kW requires a more complex design. The Connector system must be designed considering the potential for arcing associated with disconnecting the DC power supply. The permissible temperature range of the connector pins is -5 °C to +105 °C. An additional interlock for arc protection, while hot plugging, is not required for the version up to 2.6 kW.

Plug GP21 / Socket-Outlet GS21
The re-connectable SCHURTER GP21 plug accommodates a cable cross-section of between 0.75mm²/18 AWG and 1.5 mm²/16 AWG. The corresponding socket-outlet GS21 is designed for front panel thicknesses of 1.5 mm or 2.0 mm. Quick Connect 6.3 x 0.8 mm or PCB terminals are available for the connection.

Outlook
The reduction of steps to convert power resulting in less power loss, clearly speaks to the need for the use of DC power supply in data centres.

IEC TS 62735-2 is in process for the standardization of a higher DC power requirement of up to 5.2 kW. The appropriate interconnect with the necessary safety interlock (cold switch) are currently being developed.

To increase operational safety, SCHURTER will also be equipping its 2.6 kW plug with a cord retaining system. Appliance-side DC components, such as inlets and cord connectors, are being standardized in IEC TS 63236. This standard is currently in the draft phase and is expected to be published by the IEC in 2021.

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The IEC appliance filter series 5120 and 5123 are now as standard equipped with the V-Lock cord retention feature. With the V-Lock system, the power connector is equipped with a latch that interlocks with a special notch in the inlet and thus reliably prevents the cord from being pulled out.

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• Compact Construction
• Prewired Blocks with 2, 4 or 6 outlets
• V-Lock Cord Retention
• Color Coding in Black, Grey and White

With the series 4751 SCHURTER is introducing a new ganged IEC block style outlet, which provides an efficient solution for power distribution units and uninterruptible power supply units.

For the safe operation of systems in data centers, telecommunication or PA-systems, standardized, high grade and automated mounting processes are a necessity.

The blocks include 2, 4 or 6 IEC outlets type F, and are prewired and terminated with Quick Connectors 6.3 x 0.8 mm. An asymmetric panel cur-out allows for an efficient mounting process, ensuring proper outlet assembly. The series is certified by VDE and CCC for 10 A at 250 VAC and by UL for 15 A at 250 VAC.

For better optical distinction, especially useful in a multi-phase system, the individual blocks can be produced in black, grey and white.

To prevent an inadvertent disconnection of power, the new blocks are compatible with the V-Lock cord retaining system. The snap-in mounting is standard for a 1.5 mm panel thickness.

BC320: Blind Cover for Outlets of Type F / Type J
In order to prevent overload of modern power distribution strips with multiple IEC outlets, individual outlets can be protected by means of tamper resistant blind covers. These protective caps are mounted onto the outlets in the power distribution strip just like a plug. For safety reasons, the optionally available protective caps cannot be removed without the special tool/key.

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• Unique UL rating of 277 VAC
• Rocker actuated
• Various colour switches
• IP 65 with optional cover

With the TA35 series, Schurter offers a particularly versatile generation of miniature circuit breakers with a newly attained UL rating of 277 VAC, the North America rating for 1 of 3 phase used in lighting applications and other mains connected 1-phase devices. They are available in 1-, 2- or 3-pole versions and are especially impressive with their compact and attractive design.

The TA35 offers both the function of a ON/OFF switch and thermal overcurrent protection. Finely graduated rated currents are available from 0.05 A to 20 A for 1-pole and 2-pole circuit breakers, and 0.05 A to 12 A for 3-pole circuit breakers. An optional protective cover offers an IP 65 degree of protection, making the switch suitable for use in harsh environments exposed to dust and splashing water.

The rocker switch can be supplied with or without illumination in six colours with standard print legends, or customer-specific symbols. The circuit breakers are designed for efficient snap-in mounting in panel thicknesses from 1 to 4 mm. The terminals are quick-connect 6.3 x 0.8 mm.

Applications for the TA35, with its increased rating, are commercial lighting and power distribution. Other 1-phase mains connected applications include power generators, cleaning equipment, laboratory equipment for chemical and medicinal use, or machines for food service or processing.

Technical Data / Approvals
The rated AC voltage according to UL was increased to 277 VAC for all non-illuminated 1-pole and 2-pole versions. The voltage rating according to IEC remains at 240 VAC

In addition to the wide application areas of the TA35, the new rating of 277 VAC opens the following new possibilities:
• Industrial lighting arrays (277 VAC)
• Medical and laboratory equipment (277 VAC)
• Industrial Power (277 VAC)
- power supplies
- power distribution strips
- surge/transient voltage suppressors
- power conditioners
- step down transformers

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• High IP protection up to IP67
• Recessed rocker switch prevents accidental switch-off
• Versatile mounting options
• V-Lock cord retention

With the DG12, Schurter launches its most versatile power entry module with IEC inlet, integrated circuit breaker and a mains filter – with optional IP protection. Thanks to its extremely compact dimensions and a wide range of mounting options, it consolidates discrete power components into one space-saving unit suitable for a variety of applications.

The new DG12 filter series from SCHURTER combines an IEC inlet with a TA35 miniature circuit breaker and a mains filter – with optional IP protection. The DG12 is available for almost any mounting variant with snap or screw mounting. In addition, the flange mount version is available in either vertical or horizontal arrangement.

Thermal Circuit Breaker
The DG12 has an integrated TA35 bi-pole circuit breaker. It offers the function of a device switch as well as thermal overcurrent protection. The overcurrent protection is available with a bi-metal switching package on one or two poles and with rated currents from 0.05 A to 15 A. The rocker switch is available illuminated or non-illuminated, as well as in a variety of colours and markings.

IP Protection
In addition to the standard versions with IP40 protection, the DG12 is available in a version with IP67 seal protection to the panel and circuit breaker. The use of the DG12 in harsh environments with dust or splashing water is ensured with a cover for the circuit breaker, as well as sealing gasket and four sealing screws for fastening the flange.

Wide Range of Applications
The DG12 series is certified for currents up to 10 A/250 VAC according to IEC standard and 15 A/125/250 VAC UL/CSA standard. The filter series is available in standard or medical versions and for protection class I and II. For applications that require a particularly high immunity to interference, versions with high inductance filters are available. Such applications for example are IT or telecom systems according to IEC 90650, and medical devices according to IEC 60601-1. The series is compatible with V-Lock cord retention connection cables.

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• New nickel plated steel case
• Complete closed housing
• Extended climatic category 40/100/21

The successful 1 phase filter series FMBB NEO has been redesigned. The new shiny filter housing is made of nickel plated steel and complete enclosed. This ensures better contact with the equipment chassis. With an extended temperature range of -40 up to 100°C the filters can now be used for application with extra low temperatures.

Characteristics
• Designed for current applications of 1 - 36 A
• Protection against interference voltage from the mains
• Possible interferences generated in the equipment are strongly attenuated
• Especially designed for industrial applications such as: Frequency Converters, Stepper Motor Drives, UPS-Systems, Inverters
• Suitable for use in equipment according to IEC/UL 60950
• Suitable for use in medical equipment according to IEC/UL 60601-1

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Chip Fuse for Highest Demands
* Pulse- and temperature-resistant non-aging chip fuse
* Sealed against potting compound
* Meets requirements according to AECQ

With the UAI 1206, Schurter offers a pulse and temperature resistant chip fuse with time-lag characteristics for applications where durability and maximum reliability are requested.

Conventional fuses have a sort of memory. If they are exposed to pulse-shaped current peaks and high temperature fluctuations, their properties change. Every pulse makes the fuse a little weaker, every temperature fluctuation a little more susceptible. Not so with the Schurter UAI 1206.

Pulse and Temperature Resistance
Because of the a special fuse construction, dubbed by SCHURTER as “trace in air” technology, the UAI’s ability to resist current pulses smaller than the melting integral (I2t) is thereby increased exponentially. Comparably, the UAI 1206 has practically no derating to the usual extent. The ingenious design of the fuse body also dampens temperature fluctuations to a high degree. The SCHURTER UAI 1206 is also hermetically sealed against potting compound for use in intrinsically safe applications.

Areas of Application
The new chip fuse, which is offered in two versions with rated currents of 5.3 A and 7.5 A, was specificially developed for automotive applications. The Schurter UAI 1206 meets all requirements according to AEC-Q200. It is also suitable wherever high levels of pulse currents, high thermal fluctuations, and high mechanical loads are present.

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Common Mode Chokes for 4 line Applications mount on PCB
• Compact size and light weight
• Open design for optimal cooling
• Nanocrystalline ring cores
• Customer specific pin configurations available

Schurter expands its successful range of current-compensated chokes with a series for 4-wire high-current applications on printed circuit boards. The new DKIH-4 series is available for three phase applications with neutral line at rated currents from 10 A to 40 A. Due to the open design, the chokes are particularly compact and light.

Like most electronic assemblies, the power section is increasingly being mounted on the printed circuit board with discrete components. However, due to the high integration density required to achieve a compact design, thermal problems can arise due to the high currents on the PCB. EMC interference can affect adjacent modules due to the lack of spatial separation. Therefore, a compact filter on the PCB with discrete components is often the best solution. A current-compensated choke with capacitors is the most efficient method of suppressing EMC interference.

The new DKIH-4 series is suitable for three phase applications with neutral line from 10 A up to 40 A . Light weight and compact, the common mode chokes are easily placed on the PCB with through hole technology (THT). The common mode chokes are designed according IEC 60938 and rated 500 VAC or 760 VAC, making them suitable for almost any applications.

The DKIH-4 has been designed for a wide temperature range from -40 °C to +100 °C. In addition to the standard versions, customer-specific pin configurations or variants can be created on request.

Technical Data / Approvals
- Rated voltage: 500 VAC, 760 VAC
- Rated currents: 10 to 40 A at 40°C
- Rated inductance: 0.75 to 6.50 mH
- Other pin outs available on request

Application
- Frequency converters for photovoltaic or energy storage
- Charge stations for electric vehicles
- UPS-systems
- Switching power supplies

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Compact protection for 3-phase systems
* High rated voltages of up to 500 VAC / VDC
* High breaking capacity of up to 1500 A
* Also available as pigtail version (from 1A)

Schurter extends the range of rated currents in the compact high-performance fuse SHF 6.3x32 down to 500mA. The SHF 6.3x32 is a ceramic fuse for higher voltages (AC and DC) with fast tripping characteristics. The high dielectric strength and the high breaking capacity of 1500 A opens up new fields of application.

Schurter now offers the SHF 6.3x32 in nineteen rated currents between 500 mA and 32 A. The high breaking capacity of 1500 A at a rated voltage of up to 500 VAC/VDC characterizes the fuse. Besides a multitude of applications in the energy and industrial sector, the SHF 6.3x32 is especially suitable for the protection of 3-phase systems.

The SHF 6.3x32 is available as a fuse link and a pigtail version (from 1 to 8 A). Fuse links are suitable for mounting in clips and fuseholders, which makes it possible to quickly replace the fuse. SCHURTER therefore offers an extensive range of clips and fuseholders. The pigtail version allows direct mounting on printed circuit boards using THT soldering technology.

The SHF 6.3x32 can be used as RoHS-compliant fuse for lead-free systems. The compatibility with competitor products allows SCHURTER to offer the SHF 6.3x32 as a replacement product. The fuse is approved by cURus.

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