EMAS JA25Q thermal relay from the JA Series, designed for motor overload and phase failure protection with an 18.00 to 26.00 A calibration interval, 25 A current rating and IP20 protection degree.
SKU:JA25QMPN:JA25Q
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EMAS JA25Q Thermal Relay 18.00-26.00A | Motor Overload Protection Relay
EMAS JA25Q Thermal Relay 18.00-26.00A
The EMAS JA25Q is a high-quality thermal overload relay designed to provide reliable motor protection in industrial automation and electrical control applications. Featuring an adjustable thermal current calibration range of 18.00A to 26.00A, the JA25Q protects motors against overload conditions and phase failures while ensuring dependable operation in demanding environments.
Part of the EMAS JA Series, the JA25Q thermal relay is suitable for single-phase and three-phase motor protection applications. It provides overload protection, phase failure protection, and supports manual or automatic reset functionality. The product is manufactured according to TS EN 60947-4-1 standards.
EMAS JA25Q Product Features
Manufacturer: EMAS
Model: JA25Q
Product Type: Thermal Overload Relay
Adjustable Current Range: 18.00-26.00A
Rated Thermal Current: 25A
Usage Category: AC-3
Single-Phase and Three-Phase Motor Protection
Motor Overload Protection
Phase Failure Protection
Manual or Automatic Reset Function
Compatible with EMAS JA Series Contactors
Technical Specifications
Specification
Value
Brand
EMAS
Product Code
JA25Q
Product Type
Thermal Relay
Current Calibration Range
18.00-26.00A
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
Operating Frequency
600 mechanical / 600 electrical operations per hour
Short Circuit Breaking Capacity (Ics)
50kA
Standard
TS EN 60947-4-1
Applications
The EMAS JA25Q thermal relay is suitable for industrial motor starters, electrical control panels, automation systems, pumps, fans, conveyors, machinery and other motor-driven equipment requiring accurate overload protection.
Why Choose EMAS JA25Q?
Reliable thermal protection for industrial motors
Wide adjustable current range for accurate motor protection
Protection against overload and phase failure
Compact design for electrical control panels
Manual or automatic reset flexibility
Designed for long-term industrial operation
Frequently Asked Questions
What is the current adjustment range of the EMAS JA25Q?
The EMAS JA25Q has an adjustable thermal current calibration range of 18.00A to 26.00A.
What protection does the EMAS JA25Q provide?
The JA25Q provides motor overload protection and phase failure protection for single-phase and three-phase motor control applications.
Does the EMAS JA25Q support manual and automatic reset?
Yes, the EMAS JA25Q supports both manual and automatic reset operation for flexible industrial applications.
What standard does the EMAS JA25Q comply with?
The EMAS JA25Q complies with TS EN 60947-4-1 standards for low-voltage switchgear and controlgear equipment.
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Technical Specifications
Current
25 A
Phase
Single Phase
Series
JA Series
Product type
Thermal relay
Current rating
25 A
Thermic current calibration interval
18.00-26.00 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
Current
25 A
Phase
Single Phase
Series
JA Series
Product type
Thermal relay
Current rating
25 A
Thermic current calibration interval
18.00-26.00 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
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
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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...