Technical Parameters
Parameter Specification
Series ABB CAL Series (Thermal Overload Relay)
Product Type Three-Phase Thermal Overload Relay with Phase Loss Sensitivity
Order Code CAL5X-11
Rated Operational Current (Ithe) Adjustable Range: 0.10 - 18 A (The "5X" indicates this specific current range. Other CAL models cover different ranges).
Trip Class Class 10 (Trips within 10 seconds at 720% of set current).
Phase Loss Sensitivity Yes (Standard feature of the "-11" version).
Ambient Temperature Compensation Yes, compensated for -20°C to +60°C.
Auxiliary Contacts 1 NC (95-96) + 1 NO (97-98)
Contact Rating: Typically 600V AC, 5A.
Reset Mode Selectable (Auto/Manual) via a switch.
Mounting DIN Rail (35mm) mounting. Can also be side-mounted to compatible contactors using an adapter (e.g., MA series adapter).
Rated Insulation Voltage (Ui) 690V AC
Rated Impulse Withstand Voltage (Uimp) 6 kV
Control Supply Self-powered from the main motor current. No external supply required.
Standards Compliance IEC/EN 60947-1, IEC/EN 60947-4-1
Electrical Durability ≥ 1000 operations at maximum setting current.
Ambient Temperature (Operation) -25°C to +70°C (with compensation active within -20°C to +60°C)
Test Button Yes, for simulating an overload condition and testing the trip mechanism.
The ABB CAL5X-11 is a thermal overload relay from the ABB CAL series, specifically designed for the protection of three-phase AC motors. It is a direct replacement and evolutionary product of the classic TA series dual-function thermal relays, offering enhanced features and accuracy.