NOARK B1E Series High Current Miniature Circuit Breakers
B1E series Miniature Circuit Breakers (MCB) are UL 489 compliant high-current breakers designed for demanding applications. Available in 1-pole, 2-pole, 3-pole, and 4-pole configurations with current ratings up to 125A.
B1E Series Overview
NOARK B1E series MCBs provide essential protection for high-current circuits in commercial and industrial applications. These circuit breakers are specifically designed to handle large loads while maintaining the compact form factor of standard MCBs with current ratings up to 125A.
Key Features
- High Current Ratings: Available in ratings up to 125A for demanding applications
- Multiple Configurations: Available in 1-pole, 2-pole, 3-pole, and 4-pole versions
- Various Trip Curves: B-curve for sensitive loads, C-curve for standard applications, and D-curve for high inrush current scenarios
- Voltage Ratings: Suitable for 240Vac and 480Y/277Vac systems
- High Interrupting Rating: 5kA at 480Y/277Vac and 10kA at 240Vac
- Box Lug Connections: Secure termination for large conductors
- DIN Rail Mounting: Easy installation on standard 35mm DIN rails
- UL 489 Compliant: Meets strict safety standards for circuit protection
Applications
- Commercial Buildings: Main distribution panels and large power systems
- Industrial Facilities: Protection for high-current machinery and equipment
- HVAC Systems: Large air handling units and cooling equipment
- Data Centers: Critical power distribution and backup systems
- Manufacturing: High-power production machinery and equipment
- Motor Control Centers: Protection for large motor loads
B1E4P80 - 80A 4-poles (4P) P-curve MCB
Miniature Circuit Breaker (MCB) / supplementary protector - UL 1077 - NOARK (B1E series) - 4-poles (...
B1E4D8 - 8A 4-poles (4P) D-curve MCB
Miniature Circuit Breaker (MCB) / supplementary protector - UL 1077 - NOARK (B1E series) - 4-poles (...
B1E3B8 - 8A 3-poles (3P) B-curve MCB
Miniature Circuit Breaker (MCB) / supplementary protector - UL 1077 - NOARK (B1E series) - 3-poles (...
B1E4P125 - 125A 4-poles (4P) P-curve MCB
Miniature Circuit Breaker (MCB) / supplementary protector - UL 1077 - NOARK (B1E series) - 4-poles (...
B1E4P100 - 100A 4-poles (4P) P-curve MCB
Miniature Circuit Breaker (MCB) / supplementary protector - UL 1077 - NOARK (B1E series) - 4-poles (...
B1E4D60 - 60A 4-poles (4P) D-curve MCB
Miniature Circuit Breaker (MCB) / supplementary protector - UL 1077 - NOARK (B1E series) - 4-poles (...
B1E4D6 - 6A 4-poles (4P) D-curve MCB
Miniature Circuit Breaker (MCB) / supplementary protector - UL 1077 - NOARK (B1E series) - 4-poles (...
B1E4D5 - 5A 4-poles (4P) D-curve MCB
Miniature Circuit Breaker (MCB) / supplementary protector - UL 1077 - NOARK (B1E series) - 4-poles (...
B1E4D4 - 4A 4-poles (4P) D-curve MCB
Miniature Circuit Breaker (MCB) / supplementary protector - UL 1077 - NOARK (B1E series) - 4-poles (...
B1E4D35 - 35A 4-poles (4P) D-curve MCB
Miniature Circuit Breaker (MCB) / supplementary protector - UL 1077 - NOARK (B1E series) - 4-poles (...
B1E4D30 - 30A 4-poles (4P) D-curve MCB
Miniature Circuit Breaker (MCB) / supplementary protector - UL 1077 - NOARK (B1E series) - 4-poles (...
B1E4D3 - 3A 4-poles (4P) D-curve MCB
Miniature Circuit Breaker (MCB) / supplementary protector - UL 1077 - NOARK (B1E series) - 4-poles (...
Technical Information
| Specification | 1-Pole | 2-Pole | 3-Pole | 4-Pole |
|---|---|---|---|---|
| Rated Voltage | 480Y/277Vac | 480Y/277Vac, 220Vdc | 480Y/277Vac | 480Y/277Vac |
| Rated Current Range | 15A - 125A | 15A - 125A | 15A - 125A | 15A - 125A |
| Interrupting Rating | 5kA @ 480Y/277Vac | 5kA @ 480Y/277Vac, 10kA @ 220Vdc | 5kA @ 480Y/277Vac | 5kA @ 480Y/277Vac |
| Trip Characteristics | B, C, D curves | B, C, D curves | B, C, D curves | B, C, D curves |
| Connection Type | Box lug | Box lug | Box lug | Box lug |
| Standard | UL 489, IEC 60898 | UL 489, IEC 60898 | UL 489, IEC 60898 | UL 489, IEC 60898 |
| Mounting | 35mm DIN rail | 35mm DIN rail | 35mm DIN rail | 35mm DIN rail |
Need Assistance?
Our product specialists can help you select the right NOARK B1E circuit breaker for your high-current application requirements.