QF(18)- Series Miniature Circuit Breakers
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QF(18) - Series Miniature Circuit Breakers AC circuit breaker Hydraulic-magnetic technology 100% rated current capability, independent of ambient temperature One, two, three pole, 1+N and 3+N VC 8036 compliant SANS 556-1 tested VDE, EAC and CCC approved, CE certified Ratings 1 A to 63 A Wide range of time delays & operating currents Precision tripping characteristics Trip indication with mid-trip position Can be switched on immediately after tripping DIN mount product in grey shells Suitable to use for electrical isolation 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 Auxiliary Switch: Features Optional Accessories Factory fitted Attached to right hand side of the circuit breaker Compact 6.5 mm width IEC 60947-5-1 110 Vdc, 0.5 A; 240 Vac, 6A Handle lock ( QFAP001) Surface mounting clips (2096001) Busbar (2121381) Hydraulic-Magnetic Circuit Breakers are unaffected by ambient temperature and carries 100% rated current QF18-SER

QF(18) - Series Miniature Circuit Breakers Technical Data Product Type Approvals Number of Poles Operating Voltages Minimum Current Rating Maximum Current Rating Ultimate S/C Breaking Capacity (Icu) Product Type Approvals Number of Poles Operating Voltages Minimum Current Rating Maximum Current Rating Ultimate S/C Breaking Capacity (Icu) Product Type Approvals Number of Poles Operating Voltages Minimum Current Rating Maximum Current Rating Ultimate S/C Breaking Capacity (Icu) Product Type Approvals Number of Poles Operating Voltages Minimum Current Rating Maximum Current Rating Ultimate S/C...

QF(18) - Series Miniature Circuit Breakers Technical Data Product Type Ambient Operating Temperature Mounting Options Time Delay Curves Endurance Dielectric Strength Rated Impulse Withstand Voltage Weight Altitude Shock Vibration Flammability Toxicity Pollution Degree QF(18) -40 °C to +85 °C DIN rail, surface mount 1, 2, 9 10000 operations; 1500 with current, 8500 without current (IEC 60947-2 Clause 7.2.4.2)* 1000 - 2000 Vac for one minute (IEC 60947-2 Clause 8.3.3.3)* 4 kV (IEC 60947-2 Clause 8.3.3.2) 120 g per pole, 180 g with auxiliary (unpacked) Certification tests done at altitude ≈...

QF(18) - Series Miniature Circuit Breakers Long Code Example Code: QF---A-3(18)-D-2-50A-----Group Long Code Switch / neutral Auxiliary switch Triple pole Medium delay curve 2 Shunt trip Special requirement Special termination Customer specific Ordering Information Group 1: Frame Type Miniature circuit breaker Green handle Green handle Comments Group 3: Auxiliary / Trip Alarm Auxiliary switch (1 x Aux in 1 module) 6.5 mm module fitted on right-hand side Single pole Double pole Triple pole Four pole Group 5: Module Width DIN mount supplied in grey body only - 45 mm escutcheon Group 7: Time...

QF(18) - Series Miniature Circuit Breakers Ordering Information continues Group 10: Shunt Trip Group 11: Special Requirement Group 12: Special Termination Group 13: Customer Specific For options not listed, please contact CBI Data Sheet Page 5 of 10

QF(18) - Series Miniature Circuit Breakers Time Delay Curve 100000 QI Info Info gained from curve Time (seconds) Percentage of rated current Data Sheet Page 6 of 10

QF(18) - Series Miniature Circuit Breakers Time Delay Curve 100000 QI Info Info gained from curve Percentage of rated current Time (seconds) Data Sheet Page 7 of 10

QF(18) - Series Miniature Circuit Breakers Time Delay Curve 100000 Time (seconds) Percentage of rated current * The published time delay curves are generated at 30 oC 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 8 of 10

QF(18) - Series Miniature Circuit Breakers Internal Impedance vs Current Rating Q-Range impedance values Data Sheet Page 9 of 10

QF(18) - Series Miniature Circuit Breakers Outline Dimensions: DIN 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, for reasons other than personal use, is strictly prohibited without prior written...