Overview
The Telemecanique GB2 CB08 is a single-pole thermal-magnetic circuit breaker rated at 3 amperes. Manufactured by Schneider Electric’s Telemecanique division (part number 021462), this miniature breaker provides dependable overcurrent protection for industrial control systems, motor starters, and machinery automation circuits. The GB2 series combines thermal and magnetic trip mechanisms for fast response to both gradual overloads and instantaneous faults.
Key Features
- 3-ampere rated current, single-pole (1P) configuration
- Thermal-magnetic trip mechanism for dual-mode protection
- Compact DIN-rail mountable design
- Factory-new condition, sealed in original packaging
- Standard interrupting capacity for control circuit applications
- Plug-in terminal connections for easy installation
Technical Specifications
- Manufacturer: Telemecanique (Schneider Electric)
- Part Number: 021462 / GB2 CB08
- Rated Current: 3 amperes
- Poles: 1 (Single-pole)
- Trip Type: Thermal-Magnetic
- Operating Voltage: 48 VDC / 277 VAC (per distributor spec)
- Instantaneous Trip Rating (Id): 40 amperes
- Series: GB2
- Condition: New in Box
- Certification: RoHS Compliant
- Terminal Style: Plug-in
Typical Applications
- Industrial automation and control systems
- Motor starter circuits and overload protection
- Machinery and equipment protection
- HVAC and ventilation control systems
- Compact distribution boards and control panels
- Low-voltage circuit protection in 110V–277V systems
Compatibility & Replacements
Compatible With
- Telemecanique / Schneider Electric GB2 series DIN-rail systems
- Standard 35 mm DIN-rail enclosures
- Industrial control panels requiring single-pole circuit protection
- Machinery equipped with Telemecanique thermal-magnetic protection
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. While the GB2 CB08 shares the same mechanical form-factor with other GB2 single-pole breakers, confirm your exact amperage and voltage requirements before substitution.
Works With
- DIN-rail mounted control assemblies
- Telemecanique TeSys motor starter packages
- Standard industrial PLC and relay-based automation systems
- 110V, 230V, and 277V three-wire control circuits






