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  3. QF(26) - Series Miniature Circuit Breakers - Low Rating (5 - 63 A)

QF(26) - Series Miniature Circuit Breakers - Low Rating (5 - 63 A)

QF(26) - Series Miniature Circuit Breakers - Low Rating (5 - 63 A)

QF(26) - Series Miniature Circuit Breakers - Low Rating (5 - 63 A)

Product catalog summary
Overview: The QF(26) Series Miniature Circuit Breakers are designed for low voltage applications with current ratings ranging from 5 to 63 A. These breakers utilize hydraulic-magnetic technology and are suitable for various applications including telecom, lighting control, and industrial equipment.
Specifications: The circuit breakers are available in one, two, three pole, 1+N, and 3+N configurations. They operate at voltages of 240 V AC and 415 V AC, with an interrupting capacity of 5 kA or 6 kA depending on certification. The breakers are approved by VDE, EAC, CCC, and CE, and comply with VC 8036 and IEC/EN 60947-2 standards.
Technical Features: The breakers feature precision tripping characteristics, trip indication with mid-trip position, and immediate reset after overload. They are designed for dual mounting and are suitable for electrical isolation. The operating temperature range is from -40 °C to +85 °C, and they are tested for endurance up to 10,000 operations.
Time Delay Curves: The document includes time delay curves for different delay settings, indicating the tripping time in relation to the percentage of rated current. These curves are generated at 30°C ambient temperature.
Ordering Information: The ordering code is structured to specify frame type, switch/neutral options, number of poles, module width, mounting type, time delays, and current ratings. Optional accessories include handle locks, surface mounting clips, and busbars.
Environmental and Safety Standards: The breakers are designed to withstand shock and vibration as per MIL-STD-202G standards. They have a flammability rating of I3 and a toxicity rating of F1, with a pollution degree of PD2.
Contact Information: The document provides contact details for CBI-electric offices in Australia, South Africa, and the USA.
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Catalog excerpts

QF(26) - Series Miniature Circuit Breakers - Low Rating (5 - 63 A)-1

QF(26) - Series Miniature Circuit Breakers - Low Rating (5 - 63 A) Dual Mount 1 pole Dual Mount 2 pole AC circuit breaker Hydraulic-magnetic technology 100% rating capability, independent of ambient temperature One, two, three pole, 1+N and 3+N (VDE) VC 8036 compliant (SANS 556-1) VDE, EAC and CCC approved, CE certified Ratings 5 to 63 A (subject to certification) Precision tripping characteristics Trip indication with mid-trip position Reset immediately after overload Dual mount product in black shells Suitable to use for electrical isolation Box terminals suitable for cables up to 50 mm2 AC branch circuit protection (IEC / EN 60947-2) Telecom / datacom equipment Lighting control UPS equipment Alternative energy equipment Mobile power generation equipment Railway signalling equipment Residential equipment Industrial equipment Optional Accessories • • • • • Handle lock Surface mounting clips Busbar Escutcheon blank Safety blank

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QF(26) - Series Miniature Circuit Breakers - Low Rating (5 - 63 A)-2

QF(26) - Series Miniature Circuit Breakers - Low Rating (5 - 63 A)Technical Data Product Type Data Sheet Page 2 of 6

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QF(26) - Series Miniature Circuit Breakers - Low Rating (5 - 63 A)-3

Data Sheet Page 3 of 6

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QF(26) - Series Miniature Circuit Breakers - Low Rating (5 - 63 A)-4

QF(26) - Series Miniature Circuit Breakers - Low Rating (5 - 63 A) Time Delay Curves Tripping Time (Seconds) % Rated Current Data Sheet Page 4 of 6

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QF(26) - Series Miniature Circuit Breakers - Low Rating (5 - 63 A)-5

Time Delay Curves Maximum <“>LO ooo ooo 2 oooooo CO LO O OOO 2 oooooo * The published time delay curves are generated at 30oC ambient temperature with the Circuit Breaker mounted in the up-right position. The “must hold”, “must trip” and “instantaneous trip” current values are not affected by temperature, although delay time for the other operating current values may have to be adjusted using the temperature compensation curve which is available on request. Data Sheet Page 5 of 6

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QF(26) - Series Miniature Circuit Breakers - Low Rating (5 - 63 A)-6

QF(26) - Series Miniature Circuit Breakers - Low Rating (5 - 63 A) Internal Impedance vs Current Rating Q-Range impedance values Outline Dimensions: Dual Mount Please review our Customer Terms and Conditions on www.cbi-lowvoltage.co.za All rights reserved. Unless otherwise indicated, all materials on these pages are copyrighted by CBI (Pty) Ltd. No part of these pages, either text or image may be used for any purpose other than personal use. Therefore, reproduction, modification, storage in a retrieval system or retransmission, in any form or by any means, electronic, mechanical or otherwise,...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.