Eaton Circuit Breaker - NZMN1-M63 - 265720
Best current price£236.57from Tameson UK
Best offers
Shopping.co.uk recommended and popular offers
Tameson UK£236.57Visit shop Eaton Industries Eaton Nzmb1-A50 3P 50A Circuit Breaker - 259076
Visit shopTameson UK£236.57Visit shop All Offers
13 offers from £236.57 - £5,009.67
View price history by clicking the chart icon.
Tameson UKEaton Industries Eaton Nzmb1-A50 3P 50A Circuit Breaker - 259076
Free delivery in 1–3 days
£236.57
Visit shop
Eaton Industries Eaton 3P 63A Circuit Breaker Nzmn1-M63 50Ka Iec - 265720Free delivery in 1–3 days£440.94Visit shop →
Eaton Industries Eaton 3-Pole 250A Circuit Breaker Nzmb2-A250 - 259090Free delivery in 1–3 days£628.54Visit shop →
Eaton Industries Eaton Circuit Breaker Nzmn2-M160 3P 160A Iec Rated - 265724Free delivery in 1–3 days£687.78Visit shop →
Eaton Industries Eaton Nzmn3-4-Ae630 Circuit Breaker 4 Pole 630A 50Ka Iec - 265894Free delivery in 1–3 days£2,339.54Visit shop →
LZM NZM LN N PN 265720 Motor Protector 3P 50-63A 30kW£13.00 delivery£576.55Visit shop →
Motor switch 3P 37kW 63-80A LZM, NZM, LN, N, PN 265721£16.00 delivery£621.56Visit shop →
NZMN2-M160 3-Pole Circuit Breaker 265724£16.00 delivery£1,113.45Visit shop →
Motor switch 3P 75kW 125-160A LZM, NZM, LN, N, PN 265724£16.00 delivery£1,547.29Visit shop →
Motor Protection Circuit Breaker 3P 75kW 125-160A LZM NZM 265724£16.00 delivery£1,547.29Visit shop →
Circuit Breaker 3P 250A 25kA NZMB2-A250 LZM, NZM, LN, N 259090£16.00 delivery£1,814.61Visit shop →
LZM NZM LN N PN 265894 4P 630A 50kA Circuit Breaker£22.00 delivery£5,009.67Visit shop →
Product Information
Full details
The Eaton NZMN1-M63 circuit breaker is designed for industrial and commercial applications requiring robust motor protection. Its key benefit is reliable safeguarding against overloads and short circuits, ensuring operational continuity. A potential consideration is the specific setting range for overload protection, which requires careful adjustment for optimal performance. This 3-pole breaker offers a nominal continuous current of 63A and a high breaking capacity of 105kA at 400V, featuring thermomagnetic releases and phase-failure sensitivity.
All features
| Series | NZMN1-M63 |
|---|---|
| Model Part Number | 265720 & NZMN1-M63 |
| Brand | Eaton |
Extended Product Information
FAQs
What is the nominal continuous current (Iu) of the NZMN1-M63?
The nominal continuous current (Iu) for the Eaton NZMN1-M63 is 63A.
What is the breaking capacity (Icu) at 400V?
The nominal shutdown capacity (Icu) is 105kA at 400V.
Can this circuit breaker be used for general lighting circuits?
While it offers protection, the NZMN1-M63 is specifically designed and optimized for motor protection with its thermomagnetic releases and phase-failure sensitivity. For general lighting, standard circuit breakers might be more appropriate.
What standards does this circuit breaker comply with?
It complies with IEC/EN 60947-4-1 and IEC/EN 60947-2 standards.
How is the overload protection adjusted?
The overload protection features a setting range for overload protection of 380 - 630A, which requires manual adjustment based on the application's requirements, typically outlined in the product's installation manual.
What is tripping class 10A?
Tripping class 10A indicates the time within which the circuit breaker will trip under a specific overload condition (e.g., 6 times the set current). Class 10A is a common standard for motor protection, allowing for motor starting currents while protecting against sustained overloads.
Is this a thermal or magnetic trip breaker?
The NZMN1-M63 utilizes thermomagnetic releases, combining thermal elements for overload protection and magnetic elements for short-circuit protection.
Troubleshooting
Circuit breaker trips frequently under normal load.
Verify that the overload setting is appropriate for the connected motor's full load current. Ensure the motor is not experiencing issues causing it to draw excessive current. Check for any obstructions or mechanical problems with the driven equipment.
Circuit breaker does not trip during a short circuit.
Confirm that the short circuit setting is correctly configured. This is a critical safety device; if suspected faulty, replace it immediately and consult a qualified electrician.
Phase failure does not cause tripping.
Ensure the phase-failure sensitivity feature is enabled and correctly configured if applicable to the specific model variant. Test the breaker's response to phase loss under controlled conditions by a qualified technician.
Difficulty in adjusting the settings.
Refer to the specific installation manual for the NZMN1-M63 for detailed instructions on setting the overload and short-circuit release. Ensure you are using the correct tools and have adequate knowledge of the adjustment mechanism.
Pros and Cons
Pros
- Excellent protection against overloads and short circuits.
- High breaking capacity ensures safety in demanding environments.
- Adjustable settings provide tailored motor protection.
- Robust construction for industrial use.
- Compliance with international safety standards.
Cons
- The adjustment range for overload and short circuit settings may be wider than required for some smaller applications.
- Requires specific knowledge for correct setting and installation.
- Fixed mounting limits installation flexibility compared to plug-in types.
- Primarily designed for motor protection; may not be suitable for all types of load circuits without assessment.
Setup, Compatibility & Care
Setup: The NZMN1-M63 is designed for fixed mounting. Ensure proper electrical connections are made to the screw terminals for the main circuit. Installation should be performed by qualified personnel familiar with electrical codes and safety procedures. Verify that the setting ranges for overload and short-circuit protection are correctly adjusted based on the motor's nameplate data and the specific application requirements.
Compatibility: This circuit breaker is suitable for IEC market applications and complies with IEC/EN 60947-4-1 and IEC/EN 60947-2 standards. It is compatible with AC-3 switching category loads. Ensure the rated AC voltage (up to 690V) and DC voltage (up to 500V) ratings are suitable for your system.
Care: Regular visual inspection for dust accumulation or physical damage is recommended. Keep the unit clean and dry. No user-serviceable parts are inside; any maintenance or repair should be handled by qualified professionals. Ensure ventilation around the breaker is adequate to prevent overheating.