EMAS JA25I thermal relay from the JA Series, designed for motor overload and phase failure protection with a 2.50 to 3.70 A calibration interval, 25 A current rating and IP20 protection degree.
£35.52
The EMAS JA25I is a thermal overload relay designed to provide reliable motor protection in industrial automation and control systems. With an adjustable thermal current calibration range of 2.50A to 3.70A, the JA25I protects motors against overload conditions and phase failure while ensuring dependable operation in demanding environments.
Designed for use with EMAS JA Series contactors, the JA25I thermal relay features single-phase and three-phase overload protection, manual or automatic reset options, and compliance with TS EN 60947-4-1 standards.
| Specification | Value |
|---|---|
| Brand | EMAS |
| Product Code | JA25I |
| Product Type | Thermal Relay |
| Thermal Current Calibration Range | 2.50-3.70A |
| Rated Thermal Current (Ie) | 25A |
| Frequency | 50-60Hz |
| Usage Category | AC-3 |
| Insulation Voltage (Ui) | 690V AC |
| Impulse Withstand Voltage (Uimp) | 6kV |
| Dielectric Strength | 1890V AC |
| Protection Degree | IP20 |
| Contact Material | AgNi |
| Cable Section | 1.5-2.5mm² |
| Screw Torque | 1.8Nm |
| 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 JA25I thermal relay is suitable for motor starters, industrial control panels, machinery automation systems, pumps, fans, conveyors, and other applications requiring dependable motor overload protection.
The EMAS JA25I has an adjustable thermal current calibration range of 2.50A to 3.70A.
The JA25I provides motor overload protection and phase failure protection for single-phase and three-phase motor applications.
The EMAS JA25I complies with TS EN 60947-4-1 standards 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 | 2.50-3.70 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...