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EMAS JA25A EMAS THERMAL RELAY 0.15 - 0.25 A

EMAS JA25A EMAS THERMAL RELAY 0.15 – 0.25 A

EMAS JA25A thermal relay from the JA Series, designed for motor overload and phase failure protection with a 0.15 to 0.25 A calibration interval, 25 A current rating and IP20 protection degree.

SKU: JA25AMPN: JA25A
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EMAS JA25A Thermal Overload Relay 0.15-0.25A 25A Motor Protection Relay

The EMAS JA25A is a thermal overload relay from the JA Series designed to provide reliable motor protection against overload and phase failure conditions. Featuring a 25A rated current, adjustable thermal current range of 0.15A to 0.25A, AC-3 utilisation category, and manual or automatic reset functionality, the JA25A is suitable for industrial control panels, contactor assemblies, automation systems, and motor protection applications.

Product Overview

The EMAS JA25A thermal relay is designed to protect electric motors and electrical circuits from excessive current conditions that can cause overheating and equipment damage. It provides protection against overload and phase failure for both single-phase and three-phase motor applications.

With an adjustable thermal calibration range of 0.15A to 0.25A, IP20 protection, AgNi contact material, and support for manual or automatic reset operation, the JA25A provides dependable performance in industrial automation and motor control systems.

Key Features

  • Manufacturer: EMAS
  • Product Series: JA Series
  • Model: JA25A
  • Thermal overload relay for motor protection
  • 25A contact current rating
  • Adjustable thermal current range: 0.15A-0.25A
  • Protection against overload conditions
  • Protection against phase failure
  • Manual or automatic reset capability
  • AC-3 utilisation category
  • Suitable for single-phase and three-phase applications
  • Compact design for industrial control panels

Applications

  • Electric motor protection circuits
  • Industrial automation systems
  • Electrical control panels
  • Contactor assemblies
  • Pumps and fan motor protection
  • Production machinery
  • Machine control systems

Technical Specifications

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Current Range 0.15–0.25 A
Device Type Thermal Overload Relay
Current 0.25 A
Phase Single Phase
Series JA Series
Product type Thermal relay
Current rating 25 A
Thermic current calibration interval 0.15-0.25 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

Frequently Asked Questions

What is the EMAS JA25A used for?

The EMAS JA25A is used to protect electric motors and control circuits against overload and phase failure conditions.

What is the adjustment range of the JA25A?

The EMAS JA25A has an adjustable thermal current calibration range of 0.15A to 0.25A.

Can the EMAS JA25A protect three-phase motors?

Yes. The JA25A provides overload and phase failure protection suitable for both single-phase and three-phase motor applications.

Does the JA25A support manual and automatic reset?

Yes. The EMAS JA25A supports both manual and automatic reset operation for flexible industrial control applications.

What protection rating does the EMAS JA25A have?

The JA25A has an IP20 protection rating and is designed for installation inside suitable electrical enclosures and control panels.