Single-Phase ATS Panel
You must ignore all unsafe and miscellaneous practices you may find on the internet. For safety and code compliance, only a qualified electrician can install a suitable and certified electric panel designed for this task. . Proper integration into your main breaker box is the only method to prevent hazardous backfeeding into the utility grid. Follow our tutorial.
Who Are We?
Bernini Design manufactures professional-grade, single-phase standby generator control panels designed for home generators. Built with 40 years of European engineering excellence, our solutions offer an intelligent alternative to so-called standard ATS panels.
Quick Guide: Finding Your Solution
Discover the load management issues you're likely facing:
Discover the load management issues you're likely facing:
Bernini Design ATS Bernefits :
Portable or Power Statioin up to 5kW:
Stationaly Generator up to 10kW:
Why not use a standard ATS panel for household use?
Motorized transfer technology is the foundation of a standard ATS (Automatic Transfer Switch) panel. However, it is often inappropriate for residential applications for the following reasons:
1) Insufficient Torque: If the mains voltage drops consistently rather than failing completely, the switch may remain closed. 2) The electric motor: often lacks the torque required to force the switch open under these unstable conditions.
3) Lack of Switching Control: You are forced to wait for the secondary source to sequence the opening of the mains and the closing of the secondary circuit.
4) Uncontrolled "Dead Period": The interval between switching power sources is fixed. You cannot adjust this timing unless you invest in high-end, expensive industrial-grade devices.
5) Limited Configuration: Creating an effective standby system requires fine-tuning at least ten distinct electrical parameters and time delays—most standard ATS panels do not offer the user-level control needed to tailor these settings to a home environment.
The ATS "Worst Case" Scenario: The AMF Trap
Often, when a consumer requests an ATS panel, they are sold an AMF (Automatic Mains Failure) panel instead, which relies on a contactor-based changeover. While this may seem functionally sound on paper, it presents significant risks for a homeowner:
1) Mechanical Fatigue: The contactor coil must operate continuously, day and night, to hold the circuit closed. Eventually, this coil will fail.
2) Dependency: When the coil fails, you are left without power. Because these units are not user-serviceable, you are forced to call an electrician for a repair just to restore basic electricity to your home.
3) Hidden Energy Costs: Because the contactor coil is energized 24/7, it consumes power constantly. For a small home, an AMF panel can consume at least 10Wh continuously—a "vampire" load that adds unnecessary cost to your monthly electricity bill.
Benefits in installing the Bernini Design panels
Switching between the grid and the generator—and vice versa—is performed by mechanically interlocked contactors featuring a neutral position. In the event of a power failure, the contactors open the circuit.
This pause allows any electric motors found in air conditioners, fans, and refrigerators to come to a complete stop.
Standard ATS panels on the market lack this important feature and cause serious damage to appliances. A Bernini Design transfer panel features a manual switch that overrides any electronic function.
With four decades of specialized experience, we have curated three core products that cover every residential standby requirement. Select your power range below, or contact us for a fully customized architecture.
The Conect 5 kW ATS Panel (32 A)
Cost-effective & reliable solution for your house
Engineered for simplicity and long-term durability. The Conect 5kW ATS panel provides seamless automatic power management for your home standby generator. This universal Automatic Transfer Switch is engineered by Bernini Design for the safe integration of stationary or portable generators and power stations into residential electrical systems. The Conect 5kW ATS panel combines the advantages of a contactor-based chageover, with a mechanical switch that overrides all automatic circuits.
Fully compliant with international standards and manufactured in Europe.
5 kW Single-Phase ATS panel Specifications
| Dimensions / Ingress Protection | 320mmx250mmx140mm / IP42 |
| Holes footprint | 250mm (base) 170mm (high) 4-hole |
| Weight | 3 kg |
| Relay Outputs | Positive Voltage (V batt) MAX 1A |
| Digital Inputs | Dry contacts, no voltage is allowed. |
| Load Maximum Peak Current (30 minutes) | 32 A - 230 V |
| Load Maximum Continuous Current | 25 A - 230 V |
| Recommended external circuit breaker protection rating | 25 A - 230 V |
| Internal ATS protection | 4 X SIOV S20K275 Varistors |
| Continuous Internal ATS rating | 25 A AC1 FUSE 32 A 10X38 |
| 12V Battery Charger | 12.8 V 0,5A |
| Mains nominal voltage | 210 V-250 V |
| Generator nominal voltage | 210 V-250 V |
| Frequency Range | 45 Hz - 56 Hz |
| Utility Power Short-Cuts detections | 500 ms |
| Utility Power Transient Filter | T3 5-15-30-45 sec, 1-2-3 mins |
| Mains Failure - Restore time | T2 5-15-30-45 sec, 1-2-3 mins |
| Warm-up Cooling-down time | T1 5-15-30-45 sec, 1-2-3 mins |
| Change-over technology | 2x4-pole contactors with mechanical interlock
(40 amp AC1) |
| Max cable size | 10 mmq |
| Norms compliance | EN61349X, 214/35/UE, CEI121-5, 2014/30/UE |
| Environmental Conditions | -10/+40 °C / 85% |
| Certification /Warranty | CE/5-year |
Connectable generator types
Electric-start generator sets, portable generators, photovoltaic systems, or battery power stations
Automatic starting is only possible if the generator engine is correctly connected; a portable generator requires manual starting. Similarly, a battery power station must also be activated manually.
Buy the Conect 5 kW Single-Phase ATS Panel
ATS Switch Installation Manual
349 €
5-YEAR WARRANTY
Delivery time is 10 days after purchase confirmation.
Functional Overview
The unit features a 3-position manual changeover switch: BYPASS, OFF, and AUTO.
The BYPASS mode provides a mechanical override of all electronic circuits, connecting your house directly to utility power. Designed for decades of continuous operation, the system includes robust internal protection against utility-side over-voltage and electrical surges.
Using a Stationary Generator
When paired with a stationary generator, the system provides full automatic start/stop functionality, managing the power transition seamlessly upon utility failure.
Using a Portable Generator or a Power Station
The system accommodates portable generators for cost-effective emergency power.
Preparation: Set the panel to AUTO mode. Ensure non-critical loads (e.g., HVAC, laundry appliances) are disconnected to prevent generator overload.
Activation: Start the generator according to the manufacturer’s instructions and close the generator's circuit breaker.
Synchronization: Once the generator achieves stable voltage and frequency, the "G" indicator will light continuously. If parameters are out of limits, the indicator will blink, preventing transfer.
Load Transfer: Once verified, the panel automatically connects the generator to your home load.
Technical Integration Overview
The universal 3-relay configuration supports any engine type. If your generator utilizes a standard 3-pole or 5-pole ATS connector, we can supply the compatible interface cable for the most popular generators like Pramac and Hyundai.
Digital Inputs
REMOTE START: Initiates engine start even while utility power is present.
STOP: Commands engine shutdown.
MAINS SIMULATED: Disables the generator during power failure events if required.
Digital Outputs
FUEL SOLENOID RELAY: the basic commandfor commencing a start cycle.
STARTER MOTOR: Commands engine shutdown.
Miscellaneous
ENGINE RUNNING STATUS FEEDBACK: when you connect an electric start generator, this analog input contributes to a safe crank termination.
BATTERY CONNECTION TERMINALS: you can maintain the supply of the ATS panel in case of mains or generator failure. The LED indicators help you deconding alarms. When mains is normally available,the ATS panels keeps the battery charged when mains is present.
MAINS-GENERATOR-LOAD: the Conect 5kW ATS panel features Phoenix Contact removable terminal blocks that accept a wire range of wire sizes.
The Conect 5kW ATS panel is the ideal choice when you can not afford th cost of a fix generator. On request we can supply the connction Kit cable for Pramac and Hyundai generator.
Pramac / Hyundai adapter cable
49€
5-YEAR WARRANTY
The Evolve 10 kW (50 A) ATS Panel
Experience the next generation of power management. Featuring our signature this ATS panel delivers industrial-grade automation and total protection for your residential power architecture maintaining a user-friendly interface.
The Internal Bypass Switch Will Never Let You Down!
The Evolve 10kW ATS panel features an interanl 3-position, 50 A, mechanical switch: "Bypass"(left), "Off"(centre) and "Auto"(right). Normally, keep it in the "Auto" mode. Switch to off to disable any source of power. In case you do no longer need the automatic mode , choose the "Bypass" position: the switch overrides your panel and connects your house directly to the mains.
Wiring Diagram
Thanks to the programmable input/outputs, you can connect any kind of engine. You can purchase an old generator or a second-hand generator with or without an embedded auto start module.
The changeover is built with two interlocked contactors. To avoids overvoltages and overcurrent that can potentially damage your appliances, a programmable dead time is included on each transition. You can set up over/under voltage, frequency, and overload protections. Not to mention the wide range of settings for control and monitoring of the engine, auxiliary alarms and fuel. Despite the Be242 10kW ATS panel is supplied with "default settings", you can set up the controller at will.
Evolve 10 kW ATS Panel Electrical Specifications
| Description | Notes |
| Manufacturer - Production Date | Bernini Design Srl -..... |
| Model / Serial No. | Evolve 10 kW (Serial Nr...) |
| Structure / Protection | Polycarbonate IP62 |
| External Dimensions | 34X43X16 / 7 kg |
| Maximum Rated Power | 11 kVA @ 35°C |
| Continuous Rated Power | 10 kVA @ 40°C |
| Rated Voltage | 230 V / 360-440 V |
| Insulation Voltage | 1000 V |
| Rated Current AC1 | 50 A |
| Continuous Duty Current at 40°C | 44 A @ 230 V |
| Frequency / Range | 50 Hz / 45-55 Hz |
| Electrical Protections | Min-Max V-Hz, Max Amp |
| Changeover | 2 X Ghisalba GH15E |
| Norms / Standards | IEC 61439-1-2-34-5-6-7 IEC 60529 |
| Internal Protections | 3 Fuses 5x20 2 A |
| Humidity Class | 5-85 % |
| Operating Temperatures | -5/+40 °C Nominal |
| Temperature-Dependent Power Reduction | Reduce the power by 5% for each degree °C above 35 °C. |
| Connections | UT25 Terminal Blocks |
| Battery Charger | 12 V / 1 A |
| Standby Power Supply | 10 VA |
1) The panel must be installed only by qualified personnel.
2) Electrical protection devices must be installed to limit the power and current flowing through the panel, from the mains or generator, to a maximum of 63 amps at 230 volts.
3) Neutral and ground connections are mandatory.
4) The negative battery terminal must be grounded on the engine side.
5) Do not open the door when mains or generator voltage is present. The panel's interior contains components that present a risk of direct contact (IP00).
6) Consider placing advice about the presence of a standby generator
Purchase the Evolve 10 kW ATS panel
799€
5-Year Warranty
Delivery time is 20 days after purchase confirmation.
Free Shipping to the EU
Bernini Design Srl