EMAS JA25H thermal relay from the JA Series, designed for motor overload and phase failure protection with a 1.70 to 2.60 A calibration interval, 25 A current rating and IP20 protection degree.
£35.52
The EMAS JA25H is a high-quality thermal overload relay designed for reliable motor protection in industrial control applications. Featuring an adjustable thermal current range of 1.70A to 2.60A, the JA25H provides effective protection against overload conditions and phase failures when used with compatible contactors.
Built for demanding automation environments, the EMAS JA25H thermal relay supports AC-3 utilization category applications and offers manual or automatic reset functionality. It is engineered according to TS EN 60947-4-1 standards and provides dependable protection for single-phase and three-phase motor circuits.
| Specification | Value |
|---|---|
| Brand | EMAS |
| Product Code | JA25H |
| Product Type | Thermal Relay |
| Current Setting Range | 1.70-2.60A |
| Rated Thermal Current (Ie) | 25A |
| Frequency | 50-60Hz |
| Usage Category | AC-3 |
| Insulation Voltage (Ui) | 690V AC |
| Impulse Withstand Voltage (Uimp) | 6kV |
| Protection Degree | IP20 |
| Operating Temperature | -5°C to +40°C |
| Mechanical Life | 100,000 operations |
| Electrical Life | 100,000 operations |
| Short Circuit Breaking Capacity (Ics) | 50kA |
| Standard | TS EN 60947-4-1 |
The EMAS JA25H thermal relay is suitable for use in motor starters, industrial automation panels, machinery control systems, pumps, fans, conveyors, and other applications requiring dependable overload protection.
The EMAS JA25H has an adjustable thermal current range of 1.70A to 2.60A.
The JA25H provides protection against motor overload and phase failure conditions for single-phase and three-phase applications.
The product complies with TS EN 60947-4-1 requirements for low-voltage switchgear and controlgear assemblies.
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|---|---|
| Phase | Single Phase |
| Series | JA Series |
| Product type | Thermal relay |
| Current rating | 25 A |
| Thermic current calibration interval | 1.70-2.60 A |
| Operational frequency | 50 / 60 Hz |
| Usage category | AC-3 |
| Mechanical life | 100,000 operations minimum |
| Electrical life | 100,000 operations minimum |
| Operating frequency | 600 mechanical / 600 electrical operations per hour |
| Insulation voltage | 690 V AC |
| Impulse withstand voltage | 6 kV |
| Dielectric strength | 1890 V AC |
| Isolation resistance | 10 MΩ at 500 V DC |
| Operating temperature | -5°C to +40°C |
| Pollution degree | 3 |
| Protection degree | IP20 |
| Contact material | AgNi |
| Cable section | 1.5-2.5 mm² |
| Screw torque | 1.8 Nm |
| Short circuit breaking capacity | 50 kA |
| Standard | TS EN 60947-4-1 |
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...