Overview
The ITE E41B020 is a molded case circuit breaker designed for reliable protection in industrial and commercial electrical installations. Manufactured by ITE (now part of Siemens), this E4-series breaker delivers proven performance in load centers, motor control panels, and distribution systems. The bolt-on design and thermal-magnetic trip mechanism make it a standard choice for single-pole 20-amp circuits operating at 277 volts.
Key Features
- Molded case construction for durability and compact mounting
- Bolt-on connection for easy installation in standard panelboards
- Thermal-magnetic trip unit with long-time and instantaneous functions (LI)
- Single pole, single phase configuration
- 22kA interrupt rating at 277V for standard interrupting capacity
- Operating temperature range: 40°C ambient
Technical Specifications
The E41B020 meets standard electrical specifications for reliable circuit protection:
- Rated Current: 20 amps
- Voltage Rating: 277 VAC (also rated 125 VDC)
- Poles: 1 (single pole)
- Phase: Single phase
- AIC Rating: 22,000 amps at 277V
- Connection: Bolt-on with load-side lug terminals
- Trip Unit: Thermal-magnetic with LI (Long-Time and Instantaneous) functions
- Frame Size: E frame (E/ED frame, 15–125 amp range)
- Protection Type: Standard interrupting capacity
Typical Applications
The ITE E41B020 is ideal for:
- Industrial motor circuits and machine tool control
- Lighting and receptacle branch circuits in commercial buildings
- HVAC system distribution panels
- General-purpose load center protection
- OEM panel builders and system integrators requiring proven breaker performance
Compatibility & Replacements
Compatible With
- ITE/Siemens load centers and panelboards
- Standard E-frame mounting locations (15–125 amp)
- 277V single-phase electrical systems
- Standard DIN rail and bolt-on breaker slots
Replaces / Drop-In Replacement For
- ITE Gould E41B020 variants
- Imperial Electric E41B020
- Other manufacturers’ E-frame 20A single-pole breakers (verify with your system integrator)
Works With
- ITE/Siemens panelboard assemblies
- Standard electrical distribution equipment
- Thermal-magnetic protection systems
- Industrial motor starters and control circuits
