E-T-A Electronic Overcurrent Protection Devices are ideally suited to protect equipment components in industrial applications and supply lines which are fed by means of a DC24V switch-mode power supply.

Electronic overcurrent protection prevents dips of the output voltage of switched mode power supplies both in the event of short circuit and overload. At the same time these devices provide selective protection or disconnection. Switching high capacitive loads and indicating a functional error is possible without any problems. Fault indication is by means of LEDs and auxiliary contacts. This helps with trouble-shooting and increases machine run times.

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DG11 – With Additional Magnetic Release

• Thermo-magnetic circuit breaker for increased
  short-circuit protection
• V-Lock cord retention
• Water- and dustproof (IP67)

The Schurter DG11 power entry module, which has been optimized and proven over many years, is now available in a version with an additional magnetic release to protect against very high overcurrent (short circuit).

Circuit breakers are usually designed according to the thermal principle with a bimetal. If a defined temperature is exceeded due to the overcurrent, the circuit is interrupted. Once the bimetal has cooled down, the device is ready for use again. However, this process is very slow. For this reason, thermal circuit breakers are usually combined with a fuse.

New with Additional Magnetic Module
Schurter is upgrading its TA35 2-pole miniature circuit-breakers with an additional, optional magnetic module. From now on, no additional fuse is required for the thermal-magnetic versions. Depending on the application, the magnetic modules are available with both slow and fast characteristics.

V-Lock Cord Retention
The new versions of the DG11 connectors are equipped with the proven V-Lock cord retention protection as standard.

Splash- and Dustproof: IP67
The DG11 power entry module is fitted with special sealing elements (gaskets) to achieve the very high degree of protection IP67.

Application Areas
Wherever dirt, dust particles or water occurs, and the highest safety standards are required, these new Schurter power entry modules are the perfect choice. Typical areas of application are harsh industrial environments or demanding medical applications where cleaning and disinfection as well as maximum protection against overcurrent (short circuit) are required.

Applications

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PLS6-DC xPole Miniature Circuit Breaker

The PLS6 miniature circuit breaker (MCB) is a protective device that’s equipped with both a thermal and an electromagnetic release. The former responds in the event of an overload, while the latter offers protection against short circuits. The 1- and 2-pole PLS6 devices for DC applications are available with rated currents from 1 A to 50 A and can withstand rated voltages of up to 250 V DC. The switching capacity is 10 kA. The PLS6 is busbar compatible, and double life/claw terminals are available at the top as well as at the bottom for easy mounting.

Core Feature

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Reliable. Compact. Cost-Effective.

The 3120 thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120 is ideally suited for overload protection of motors, pumps, transformers and cables. After tripping, it can reliably, easily and quickly be reset. The positively trip-free mechanism ensures reliable disconnection of the circuit even with the actuator blocked.

Benefits:

• Dual Functionality: Combines a circuit breaker and switch in a single compact unit.
• High-Performance Bimetal Technology: Responds to overloads based on current intensity and ambient temperature for precise protection.
• Quick Reset: Eliminates downtime and the hassle of replacing fuses.
• Cost-Effective Design: Streamlines installation, wiring, and logistics—ideal for mass production or modular systems.

Versions Upon Request:

• ON/OFF Switch without overcurrent protection according to the relevant standard for switches for appliances IEC/EN 61058
• Thermal-Magnetic version for an additional short circuit protection

Typical Applications:

• Medical and Laboratory Equipment
• Apparatus and Machine Construction
• Professional Tools
• Household and Garden Appliances
• Offices Machines
• Audio Equipment
• Machine Tools

Key Features:

• Single or double pole thermal circuit breaker/switch combination
• Voltage ratings: AC 240 V, DC 50 V
• Current rating range: 0.1 … 20 A (up to 30 A upon request)
• Optional: push-in terminals for easy and quick wiring with a long-term stability
• Functional extension options with add-on modules for low voltage release, auxiliary contact function or remote trip

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PLS4 xPole Miniature Circuit Breaker

The PLS4 miniature circuit breaker from the xPole series is a protective device equipped with both a thermal and an electromagnetic release that is available in 1-, 2-, 3-, 4- and 3+N pole versions. The PLS4 is compatible with AC and DC applications up to 48 V with rated currents from 0.16 A to 63 A and is available with tripping characteristics B and C. The switching capacity is 4.5 kA.

Core Features

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Compact. Reliable. Globally Certified.

The 4230-T is a high-performance thermal-magnetic miniature circuit breaker (MCB) designed for DIN rail mounting, offering dependable protection with a compact footprint. Available in single-pole and multipole configurations, the 4230-T combines advanced safety features with global compliance, making it an ideal solution for a wide range of industrial and commercial applications.

Typical Applications:

• Protection of cables, motors, generators and transformers, thyristors and silicon rectifiers.
• Protection of computers and their peripheral equipment, industrial process control systems, telecommunications equipment, power supplies.

Key Features:

• Standards Compliant: Fully compliant with IEC/EN 60947-2 and UL 489, ensuring suitability for global markets.
• High Breaking Capacity: Rated up to 63 A, making it ideal for use as a Supplementary Protector in demanding environments.
• Snap Action Mechanism: A positively trip-free design ensures reliable disconnection, even under fault conditions.
• Toggle Actuation: With clear visual status indication for quick and easy monitoring.
• DIN 43880 Housing: Standard enclosure design fits seamlessly into existing panel layouts.
• Modular Flexibility: Expandable with auxiliary contacts, working current modules, and other add-ons to adapt to various use cases.
• Custom Trip Characteristics: A variety of trip curves are available to match your specific protection needs.

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OGN
Fuseholder Open Design, 5 x 20 mm, THT, SMT, THR, IEC 60335-1

OGN open Fuseholders are perfectly designed for control electronics. Available for all assembly cases in THT, SMT and THR. Small PCB footpring and small height.

Description:

• For appliances in unattended use
• Fulfills increased glow wire requirements acc. IEC 60335-1

Unique Selling Proposition:

• Available for all your assembly cases in THT, SMT and THR
• Suitable for fully automated PCB assembling (SMT and THR)
• Reflow capable and small design height (SMT and THR)
• Available preassembled with fuses and covers (SMT only)

Applications:

• Household appliances
• Industrial Equipment
• Control electronics

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PLN6 xPole Miniature Circuit Breaker

The PLN6 miniature circuit breaker (MCB) is a protective device that’s equipped with both a thermal and an electromagnetic release. The former responds in the event of an overload, while the latter offers protection against short circuits. The 1+N-pole MCB is only 1 HP wide and is available with rated currents from 2 A to 40 A. The switching capacity is 6 kA.

The circuit breaker, which is available with tripping characteristics B and C, is equipped with a red-green contact-position indicator for indicating the device state: green means that the contacts are open, and red that they are closed.

Core Features

• Premium 1+N pole miniature circuit breaker for residential and non-residential buildings
• Highly compact – only 1 HP wide
• Current limiting class (formerly selectivity class) 3
• Back-up fuse with high selectivity, thanks to low let-through energy
• Contact position indicator red – green
• Rated currents up to 40 A
• Tripping characteristics B, C
• Rated switching capacity 6 kA according to IEC/EN 60898-1
• Complies with the insulation coordination requirements (= distance between the contacts ≥ 4 mm)
• Busbar compatible
• Lift/claw double terminals at top and bottom
• For mounting on busbar at top or bottom, as required
• Guide for secure terminal connection
• Comprehensive range of accessories, which can also be retrofitted
• Switch-grip in rated current color

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PLN4 xPole Miniature Circuit Breaker

The PLN4 miniature circuit breaker (MCB) is a protective
device that’s equipped with both a thermal and an
electromagnetic release. The former responds in the event
of an overload, while the latter offers protection against
short circuits.

The 1+N-pole MCB is only 1 HP wide and is
available with rated currents from 2 A to 40 A. The switching
capacity is 4.5 kA. The circuit breaker, which is available with
tripping characteristics B and C, is equipped with a red-green
contact-position indicator for indicating the device state.

Core Features

• Premium 1+N pole miniature circuit breaker for residential and non-residential buildings
• Highly compact – only 1 HP wide
• Current limiting class (formerly selectivity class) 3
• Back-up fuse with high selectivity, thanks to low let-through energy
• Contact position indicator red – green
• Rated currents up to 40 A
• Tripping characteristics B, C
• Rated switching capacity 4.5 kA according to IEC/EN 60898-1
• Complies with the insulation coordination requirements (= distance between the contacts ≥ 4 mm)
• Busbar compatible
• Lift/claw double terminals at top and bottom
• For mounting on busbar at top or bottom, as required
• Guide for secure terminal connection
• Comprehensive range of accessories, which can also be retrofitted
• Switch-grip in rated current color

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E-T-A High Performance Circuit Breakers

Typical Applications

High performance circuit breakers are ideally suited to protect against overcurrent and short circuit for use in aircraft and vehicles and other specialised equipment where safety is paramount. Battery isolation switches are ideally suited for installation in the main battery systems of heavy duty vehicles including tankers, boats, off-road plant and other battery-powered equipment.

Technology

High performance circuit breakers feature thermal or thermal-magnetic trip and an extremely high rupture capacity. Battery isolation switches are also based on a thermal-magnetic trip mechanism. The thermal part of the circuit breaker provides delayed protection in the event of overload, the magnetic part disconnects the faulty circuit in the event of overload or short circuit within milliseconds.

Customized High Performance Circuit Breakers such as SG, AP or CBM types are available on request. All products of this group provide genuine physical contact isolation.

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