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1 Years
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| Brand Name : | ABB |
| Model Number : | CA4-01 |
| Certification : | COO & COC |
| Price : | $111-$123 |
| Payment Terms : | T/T,paypal,alipay |
| Supply Ability : | 99+ |
| Delivery Time : | 3-5 days |
CA4-01 ABB Thermal overload relay Provide reliable motor protection
Product Overview
ABB CA4-01 is a thermal overload relay in the ABB CA4 series specifically designed for extremely small power three-phase asynchronous motors, with a rated working current range of 0.1A to 1.6A. This product integrates one normally open (NO) auxiliary contact and features dual protection functions of overload and phase loss. It is suitable for control application scenarios with high requirements for space compactness and protection accuracy. The CA4-01 can be directly assembled with ABB A series contactors to form an integrated motor starting protection unit, which is widely used in automation equipment, building systems and OEM complete sets of equipment.
Key features
✅ high sensitivity protection
Optimized for microcurrent motors, with a starting voltage of 0.1A, it precisely responds to minor overloads, avoiding misoperation or protection blind spots.
✅ phase loss protection function
It is equipped with a built-in three-phase current imbalance detection mechanism. When any phase is disconnected, it will automatically trip to prevent the motor from burning out due to single-phase operation.
✅ compact modular structure
The width is only 45mm
Supports 35mm DIN rail mounting
It can be directly assembled on the right side of ABB A series
contactors, saving space inside the cabinet and simplifying wiring
✅ security compliance certification
It has passed international certifications such as CE, UL, CSA, CCC, and TUV, complies with IEC/EN 60947-4-1 and GB 14048.4 standards, and meets the global project access requirements.
✅ is easy to operate and maintain
The transparent window allows for a direct view of the tripping status. The reset button is easy to operate. It resets automatically by default. A manual reset module can also be optionally equipped to enhance safety.
Basic parameters
Model CA4-01
Series ABB CA4 thermal overload relay
Rated operating current (Ie) 0.1-1.6 A (AC- 3,400 V)
Rated insulation voltage (Ui) : 690 V AC
Rated operating voltage (Ue) 230/400/690 V AC (50/60 Hz)
Auxiliary contact configuration 1 NO (Always open)
The deduction level is Class 10A
Reset mode: Automatic reset (default), manual reset of attachments
(such as HHRM -11)
Protection grade IP20 (front)
Installation method: 35mm DIN rail or assembled on ABB A series
contactors
Operating temperature range: -25°C to +55°C
Storage temperature: -40°C to +85°C
Altitude ≤ 2000 m (no volume reduction)
Dimensions (width × height × depth) : 45mm × 78mm × 78mm
Weight ≈ 0.1 kg
Typical application scenarios
Industrial automation
It is used for the starting, stopping and protection of
medium-voltage motors, such as water pumps, fans, compressors and
other equipment.
Power transmission and distribution
Load switching and protection in scenarios such as medium-voltage
switch cabinets and substations.
Energy and infrastructure
Auxiliary control of photovoltaic inverters, pumping stations of
water treatment plants, and backup power switching systems.
OEM equipment integration
As a standard component embedded in the OEM control cabinet, it
enhances the reliability of the entire machine.
Product Images
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