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IDEC NR21 Miniature Circuit Breaker
The IDEC NRA series circuit breakers are designed for reliable overload and short circuit protection in a variety of industrial applications. These breakers offer a compact footprint, a long operational life exceeding 10,000 cycles, and are recognized under UL1077 standards for supplementary protection. Available in multiple pole configurations and with optional auxiliary and alarm contacts, the NRA series provides versatility for diverse electrical systems. They are commonly used in control panels, machinery, and other industrial equipment where reliable circuit protection is essential.
IDEC NR21 Miniature Circuit Breaker Specifications:
- Protection Method: Electromagnetic tripping
- Internal Circuit: Series current trip
- Number of Poles: NRAS and NRAN: 1, 2, 3; NRAR: 1
- Rated Voltage: 250V AC, 50/60Hz, 65V DC
- Rated Tripping Currents: 0.3A, 0.5A, 0.75A, 1A, 2A, 3A, 5A, 7.5A, 10A, 15A, 20A, 25A, 30A
- Rated Interrupting Capacity: 250V AC, 50/60Hz, 1,000A; 65V DC, 1,000A
- Auxiliary Contact: SPDT microswitch 250V AC, 5A (resistive load); 50V DC, 1A (resistive load)
- Alarm Contact: SPDT microswitch 250V AC, 5A (resistive load); 50V DC, 1A (resistive load)
- Reference Temperature: 25°C
- Operating Temperature: –40 to +85°C
- Insulation Resistance: 100MΩ minute
- Dielectric Strength: Between main circuit terminals: 2,000V AC, 1 minute; Between main circuit and auxiliary contact: 2,000V AC, 1 minute
- Vibration Resistance: 100N (approximately 10G) (10 to 100Hz)
- Shock Resistance: 1,000N (approximately 100G)
- Life Expectancy: Minimum 10,000 cycles
- Termination: Main terminal: Quick-connect receptacle 0.250" (accepts M3.5 screw terminal adapter); Auxiliary contact, alarm contact: Quick-connect receptacle 0.080"
- Illumination Voltage: Neon: 120, 240V AC, 50/60Hz
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Frequently Asked Questions
Where can I buy IDEC NR21?
You can click on the BUY or RFQ button to purchase NR21 from an authorized IDEC distributor.
How do I troubleshoot issues or seek technical support for part NR21?
You can download the NR21 datasheet or visit the IDEC website for support.
Who is the manufacturer of NR21?
IDEC