EMAS JA25O thermal relay from the JA Series, designed for motor overload and phase failure protection with a 10.00 to 15.00 A calibration interval, 25 A current rating and IP20 protection degree.
£37.54
The EMAS JA25O is a reliable thermal overload relay designed to protect electric motors and industrial control circuits from overload and phase failure conditions. Featuring an adjustable thermal current calibration range of 10.00A to 15.00A, the JA25O provides accurate motor protection for automation systems, electrical panels and machinery applications.
Part of the EMAS JA Series, the JA25O thermal relay is designed for use with compatible contactors and provides dependable protection for single-phase and three-phase motor applications. It includes manual or automatic reset functionality and complies with TS EN 60947-4-1 standards.
| Specification | Value |
|---|---|
| Brand | EMAS |
| Product Code | JA25O |
| Product Type | Thermal Relay |
| Current Calibration Range | 10.00-15.00A |
| 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 |
| Isolation Resistance | 10 MΩ (500V DC) |
| Operating Temperature | -5°C to +40°C |
| Pollution Degree | 3 |
| Protection Degree | IP20 |
| Contact Material | AgNi |
| Cable Section | 1.5-2.5mm² |
| Screw Torque | 1.8Nm |
| Mechanical Life | 100,000 operations minimum |
| Electrical Life | 100,000 operations minimum |
| Short Circuit Breaking Capacity (Ics) | 50kA |
| Standard | TS EN 60947-4-1 |
The EMAS JA25O thermal relay is suitable for industrial motor starters, electrical control panels, automation systems, pumps, fans, conveyors, machinery and other motor-driven equipment requiring reliable overload protection.
The EMAS JA25O has an adjustable thermal current calibration range of 10.00A to 15.00A.
The JA25O provides motor overload protection and phase failure protection for industrial motor control applications.
Yes, the EMAS JA25O supports both manual and automatic reset operation for flexible industrial applications.
The EMAS JA25O complies with TS EN 60947-4-1 standards for low-voltage switchgear and controlgear equipment.
{ "@context": "https://schema.org", "@type": "Product", "name": "EMAS JA25O Thermal Relay 10.00-15.00A", "brand": { "@type": "Brand", "name": "EMAS" }, "sku": "JA25O", "description": "Thermal overload relay with adjustable 10.00-15.00A current range, overload protection and phase failure protection for industrial motor control applications.", "category": "Thermal Overload Relay", "additionalProperty": [ { "@type": "PropertyValue", "name": "Rated Thermal Current", "value": "25A" }, { "@type": "PropertyValue", "name": "Current Adjustment Range", "value": "10.00-15.00A" }, { "@type": "PropertyValue", "name": "Usage Category", "value": "AC-3" } ] } { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "What is the current adjustment range of EMAS JA25O?", "acceptedAnswer": { "@type": "Answer", "text": "The EMAS JA25O provides an adjustable thermal current range of 10.00A to 15.00A." } }, { "@type": "Question", "name": "What protection does EMAS JA25O provide?", "acceptedAnswer": { "@type": "Answer", "text": "The JA25O provides overload protection and phase failure protection for industrial motor control applications." } } ] }| Current | 25 A |
|---|---|
| Phase | Single Phase |
| Series | JA Series |
| Product type | Thermal relay |
| Current rating | 25 A |
| Thermic current calibration interval | 10.00-15.00 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 |
● Service Agreements
Credit Accounts
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
● frequently asked questions
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
● latest blog
LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
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...
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...