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HS1B2NT025E230 Lovato SOLID STATE RELAY 1P 25A
Lovato HS1B2NT025E230 is a single-phase 25 A solid state relay with an 18–280 V AC/DC control input, 12–280 V AC load voltage, SCR output and zero-crossing switching for industrial resistive loads.
£35.15
Why Choose the Lovato HS1B2NT025E230 Solid State Relay?
The Lovato HS1B2NT025E230 is a single-phase 25 A solid state relay designed for reliable electronic switching of AC resistive loads. Part of the Lovato HS1B series, its industrial hockey-puck construction combines an SCR semiconductor output with zero-crossing switching for fast, silent operation without mechanical switching contacts.
The HS1B2NT025E230 features a particularly versatile 18–280 V AC/DC control input and switches loads across a rated operating voltage range of 12–280 V AC. Its broad control-voltage range makes it suitable for a variety of industrial control circuits while the zero-crossing output helps minimise switching disturbances when controlling compatible AC loads.
Rated for 25 A AC-51 at 40 °C and 20 A AC-51 at 55 °C, the relay is well suited to heaters and other resistive loads. High electrical isolation, integrated TVS output protection and robust screw terminals provide a dependable solution for industrial machinery, temperature-control equipment and automation panels.
Key Advantages
- 25 A single-phase solid state relay for AC resistive-load switching.
- Wide 18–280 V AC/DC control voltage range.
- 12–280 V AC rated operating voltage.
- Zero-crossing switching helps minimise electrical switching disturbances.
- SCR semiconductor output provides silent, contactless switching.
- 4000 V input-to-output isolation for strong electrical separation.
- Integrated TVS output protection.
- Industrial hockey-puck format with secure screw terminals.
Key Features
- Lovato HS1B solid state relay series.
- Single-phase, 1-pole configuration.
- 25 A AC-51 rated current at 40 °C.
- 20 A AC-51 rated current at 55 °C.
- 18–280 V AC/DC control input.
- 12–280 V AC load operating range.
- SCR semiconductor output.
- Zero-crossing switching mode.
- 45–65 Hz operational frequency range.
- Maximum switching-on and switching-off time of half a cycle.
- 340 A non-repetitive surge peak current for 10 ms.
- Screw terminals for control and load connections.
Reliable Contactless Switching for Resistive Loads
The Lovato HS1B2NT025E230 switches AC loads electronically through an SCR semiconductor output, eliminating the moving contacts found in conventional electromechanical relays. This enables quiet operation and makes the relay particularly suitable for applications involving frequent switching cycles.
Its zero-crossing switching activates the output close to the AC waveform's zero-voltage point, helping reduce electrical disturbances when switching compatible resistive loads. Correct thermal management remains important at high load currents, and a suitably rated heatsink should be selected according to the relay current and installation conditions.
Typical Applications
- Industrial electric heating systems.
- Resistive heating-element control.
- Industrial ovens and drying equipment.
- Temperature-control systems.
- Packaging and processing machinery.
- Industrial automation and control panels.
- Electronic AC load switching.
- Applications requiring frequent, quiet switching.
Technical Specifications
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| Device Type | Solid State Relay | |
|---|---|---|
| Coil / Supply Voltage | 110 V AC, 110 V DC, 115 V AC, 120 V AC, 125 V DC, 208 V AC, 220 V AC, 220 V DC, 230 V AC, 24 V AC, 24 V DC, 240 V AC, 250 V DC, 48 V AC, 48 V DC, 60 V DC, 72 V DC | |
| HS Code | 85365003 | |
| Manufacturer | Lovato Electric | |
| Series | HS1B Solid State Relays | |
| Model | HS1B2NT025E230 | |
| Product type | Solid state relay | |
| Configuration | Single-phase | |
| Number of poles | 1 | |
| Housing format | Hockey puck | |
| Control voltage | 18–280 V AC/DC | |
| Operating pick-up voltage | 18 V | |
| Operating drop-out voltage | 8 V | |
| Input current | 4.5–6 mA | |
| Static output type | SCR (silicon controlled rectifier) | |
| Switching mode | Zero crossing | |
| Rated operating voltage | 12–280 V AC | |
| Blocking voltage | 600 V | |
| Operational frequency | 45–65 Hz | |
| Rated operating current AC-51 at 40 °C | 25 A | |
| Rated operating current AC-51 at 55 °C | 20 A | |
| Minimum operational current | 0.05 A | |
| Non-repetitive surge peak current | 340 A at 10 ms | |
| Off-state leakage current | 1 mA | |
| On-state voltage drop | 1.25 V | |
| Critical rate of rise of off-state voltage | 500 V/µs | |
| Thermal resistance, junction to case | 1.6 K/W | |
| Required heatsink thermal resistance at rated AC-51 current | ≤2.2 K/W | |
| Input-to-output isolation | 4000 V | |
| Input/output-to-metal-base isolation | 4000 V | |
| Output protection | TVS | |
| I²t | 600 A²s | |
| Control terminals | M4 screw | |
| Load terminals | M5 screw | |
| Operating temperature | −40 to +90 °C | |
| Storage temperature | −40 to +100 °C | |
| Weight | 90 g | |
| Package dimensions | 75 × 49 × 38 mm | |
| Conformity | IEC/EN/BS 60947-4-3, IEC/EN/BS 60947-4-2, IEC/EN/BS 62314, IEC/EN/BS 60335-1 | |
| EAN | 8013975321553 |
Frequently Asked Questions
What is the Lovato HS1B2NT025E230 used for?
The HS1B2NT025E230 is a single-phase solid state relay designed primarily for electronic switching of AC-51 resistive loads such as industrial electric heaters.
What control voltage does the HS1B2NT025E230 accept?
The relay accepts a wide 18–280 V AC/DC control voltage, allowing it to operate with compatible AC or DC industrial control circuits.
What is the rated current of the HS1B2NT025E230?
The HS1B2NT025E230 is rated at 25 A AC-51 at 40 °C and 20 A AC-51 at 55 °C, subject to correct installation and thermal management.
What load voltage can the HS1B2NT025E230 switch?
The relay has a rated operating voltage range of 12–280 V AC with an operational frequency range of 45–65 Hz.
Does the HS1B2NT025E230 use zero-crossing switching?
Yes. The SCR output uses zero-crossing switching, making the relay particularly suitable for controlled switching of compatible AC resistive loads.
Trusted by Industrial Automation Professionals
Lovato HS series solid state relays provide machine builders, panel manufacturers and automation engineers with robust semiconductor switching solutions for frequent, silent and reliable control of industrial electrical loads.
