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5906S
Thermal Magnetic Circuit Breaker, SENTRY, 6 A, 1 Pole, 240 VAC, DIN Rail
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- Manufacturer: HONEYWELL
- Product type: Thermal Magnetic Circuit Breakers
- No. of Poles: 1 Pole
- Product Range: SENTRY
- Current Rating: 6A
- Voltage Rating VAC: 240VAC
- Circuit Breaker Mounting: DIN Rail
| Delivery and price | |
|---|---|
| Units per pack | 250 |
| Price | 5.16 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
TECHNICAL DATA SHEET ## **Sentry** ## **Miniature Circuit Breakers** 1:3 ## **Sentry[®] MCBs** ## **Description** |**PRODUCT RANGE**<br>**Type B Single pole**<br>**Rating**<br>has|**PRODUCT RANGE**<br>**Type B Single pole**<br>**Rating**<br>has|**PRODUCT RANGE**<br>**Type B Single pole**<br>**Rating**<br>has|**PRODUCT RANGE**<br>**Type B Single pole**<br>**Rating**<br>has|**PRODUCT RANGE**<br>**Type B Single pole**<br>**Rating**<br>has|**PRODUCT RANGE**<br>**Type B Single pole**<br>**Rating**<br>has|**PRODUCT RANGE**<br>**Type B Single pole**<br>**Rating**<br>has|**PRODUCT RANGE**<br>**Type B Single pole**<br>**Rating**<br>has|**PRODUCT RANGE**<br>**Type B Single pole**<br>**Rating**<br>has|**PRODUCT RANGE**<br>**Type B Single pole**<br>**Rating**<br>has|**PRODUCT RANGE**<br>**Type B Single pole**<br>**Rating**<br>has|**PRODUCT RANGE**<br>**Type B Single pole**<br>**Rating**<br>has|**PRODUCT RANGE**<br>**Type B Single pole**<br>**Rating**<br>has|**PRODUCT RANGE**<br>**Type B Single pole**<br>**Rating**<br>has|**PRODUCT RANGE**<br>**Type B Single pole**<br>**Rating**<br>has|**PRODUCT RANGE**<br>**Type B Single pole**<br>**Rating**<br>has|**PRODUCT RANGE**<br>**Type B Single pole**<br>**Rating**<br>has|**PRODUCT RANGE**<br>**Type B Single pole**<br>**Rating**<br>has|**PRODUCT RANGE**<br>**Type B Single pole**<br>**Rating**<br>has|**PRODUCT RANGE**<br>**Type B Single pole**<br>**Rating**<br>has|**PRODUCT RANGE**<br>**Type B Single pole**<br>**Rating**<br>has|**PRODUCT RANGE**<br>**Type B Single pole**<br>**Rating**<br>has|**PRODUCT RANGE**<br>**Type B Single pole**<br>**Rating**<br>has|**PRODUCT RANGE**<br>**Type B Single pole**<br>**Rating**<br>has|**PRODUCT RANGE**<br>**Type B Single pole**<br>**Rating**<br>has|**PRODUCT RANGE**<br>**Type B Single pole**<br>**Rating**<br>has|**PRODUCT RANGE**<br>**Type B Single pole**<br>**Rating**<br>has|**PRODUCT RANGE**<br>**Type B Single pole**<br>**Rating**<br>has|**PRODUCT RANGE**<br>**Type B Single pole**<br>**Rating**<br>has|**PRODUCT RANGE**<br>**Type B Single pole**<br>**Rating**<br>has|**PRODUCT RANGE**<br>**Type B Single pole**<br>**Rating**<br>has|**PRODUCT RANGE**<br>**Type B Single pole**<br>**Rating**<br>has|**PRODUCT RANGE**<br>**Type B Single pole**<br>**Rating**<br>has|**PRODUCT RANGE**<br>**Type B Single pole**<br>**Rating**<br>has|**PRODUCT RANGE**<br>**Type B Single pole**<br>**Rating**<br>has|**PRODUCT RANGE**<br>**Type B Single pole**<br>**Rating**<br>has|**PRODUCT RANGE**<br>**Type B Single pole**<br>**Rating**<br>has|**PRODUCT RANGE**<br>**Type B Single pole**<br>**Rating**<br>has|**PRODUCT RANGE**<br>**Type B Single pole**<br>**Rating**<br>has|**PRODUCT RANGE**<br>**Type B Single pole**<br>**Rating**<br>has|**PRODUCT RANGE**<br>**Type B Single pole**<br>**Rating**<br>has|Sentry MCBs are of the thermo-magnetic,<br>current limiting type and are available with<br>either Type B or Type C operating characteristics.| |---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---| ||5903s|||||||||||||||||||||||3A|||||||||||||||||The operating dolly may be locked in either| ||5906s|||||||||||||||||||||||6A|||||||||||||||||the ON or OFF position without affecting the| ||5910s|||||||||||||||||||||||10A|||||||||||||||||ability of the trip mechanism to operate. The<br>contacts themselves are manufactured from| ||5916s<br>5920s<br>5932s<br>5940s|||||||||||||||||||||||16A<br>20A<br>32A<br>40A|||||||||||||||||carefully chosen materials, selected specifically<br>for their low electrical resistance and low<br>propensity to weld under fault conditions.<br>**Positive contact status indication**| ||5945s|||||||||||||||||||||||45A|||||||||||||||||When the green portion of the dolly is visible,| ||5950s|||||||||||||||||||||||50A|||||||||||||||||then a contact gap of 4mm has been achieved.| ||**Type C Single pole**<br>8703s|||||**Type C Single pole**||||||||||||||||||**Rating**<br>3A|||||||||||||||||Sentry MCBs may therefore be used as single<br>pole isolating switches where appropriate.<br>**Terminals**| ||8706s<br>8710s|||||||||||||||||||||||6A<br>10A|||||||||||||||||The Sentry MCB features tunnel terminals of<br>generous capacity, with 25mm2 on ratings up| ||8716s|||||||||||||||||||||||16A|||||||||||||||||to and including 20A, and 35mm2 on all| ||8720s|||||||||||||||||||||||20A|||||||||||||||||ratings 32A and above. The terminal screws| ||8732s<br>8740s|||||||||||||||||||||||32A<br>40A|||||||||||||||||are touch proof to IP2X, captive and feature<br>combination heads.<br>**Retrofit kit 5567s**| ||8750s<br>Retrofit kit<br>5567s|||||||||||||||||||||||50A|||||||||||||||||The Sentry MCB/RCBO retrofit kit is designed<br>for use when installing MCB/RCBOs into| ||||||||||||||||||||||||||||||||||||||||||superceded Sentry Consumer Units. The kit| ||||||||||||||||||||||||||||||||||||||||||contains a busbar extension terminal (5562s),| ||||||||||||||||||||||||||||||||||||||||||a 100A rated cable and a 25mm2 capacity| |**Standards and approvals**|||||||||||||||||||||||||||||||||||||||||spade connector terminal with clamp screw.| |Sentry MCBs are designed to fully comply with the<br>relevant requirements of BS EN 60898: 1991.|||||||||||||||||||||||||||||||||||||||||It may be used to fit up to 3 Sentry<br>MCB/RCBOs. If more need to be installed,| ||||||||||||||||||||||||||||||||||||||||||then use the MK 5511s busbar with kit.| ## **Modes of operation** The mechanism of the Sentry MCB has been carefully designed and engineered using thermal and magnetic elements to detect overcurrents due to both overload and fault currents. The MCB will operate and interrupt the supply to prevent damage to the installation. The thermal component is a carefully calibrated, thermally operated bi-metal element. Larger overloads and fault current situations are dealt with using the magnetic tripping mode of the MCB. This acts very quickly, overriding the thermal operation. BS EN 60898 requires the tripping to occur within 100 milliseconds and the design of the Sentry MCB allows fault currents of up to 6000A (M6) to be safely interrupted well within this time scale. ## **Operating characteristics** ## **TYPE B** The magnetic operating limits are between 3 and 5 times the current rating of the MCB. Under these conditions the mechanism of a 10A MCB will operate between 30A and 50A in an overcurrent situation. ## **TYPE C** In the case of Type C MCBs, the magnetic operating limits are between 5 and 10 times the current rating of the MCB. Under these conditions the mechanism of a 10A MCB will operate between 70A and 100A in an overcurrent situation. The MCBs feature positive contact status indication in accordance with 16th edition IEE Wiring regulations (537-02-03 and 537-03-02). ©2002 MK Electric Limited The Arnold Centre, Paycocke Road, Basildon, Essex SS14 3EA, United Kingdom Tel: +44 (0)1268 563720 Fax: +44 (0)1268 563064 email: more@mkelectric.co.uk www.mkelectric.co.uk Edition 09-02 TECHNICAL DATA SHEET ## **Sentry** **Miniature Circuit Breakers** 2:3 Type C devices are capable of supplying the majority of inductive and capacitive loads such as motors, transformers and tungsten or fluorescent lighting. Time/Current and Energy let through characteristics of Sentry MCBs are shown graphically on the Time current characteristics chart (See separate document). ## **TYPE D** ## **(not offered in the Sentry Range)** The Type D MCB is suitable for applications involving equipment generating very high inrush currents, e.g. x-ray equipment, transmitters and computer power supplies. The magnetic operating limits are between 10 and 20 times the current rating of the MCB. ## **Features** - I Meet BS EN and IEE Wiring Regulation requirements - I ‘Trip-free’ mechanism - I Positive contact status indication ## **Installation** ## **TECHNICAL SPECIFICATION** Selection of the most suitable MCB should take into account the following considerations: ## **Electrical** Voltage rating: 250V/415V a.c. Operating frequency: 50Hz Rated short circuit capacity Icn: 6000A Service short circuit capacity Ics: 6000A Energy limiting class: **3** ## **1. Operating voltage and frequencies** It is possible to use the Sentry MCB on other voltages than 240/415V a.c. 50Hz, but it should be noted that this takes the MCB outside the scope of BS EN 60898. ## **2. Type of load** RESISTIVE No derating is required in the case of resistive loads. ## **Physical** Ambient operating temperature: –25°C to +60°C Calibration temperature +30°C ## INDUCTIVE In the case of inductive loads from direct-onCalibration temperature +30°C line motors, the surge on energisation can IP rating: produce up to 9 times full load current, Front face IP4X, screw IP2X which may be present for several seconds. It Max. installation altitude: is therefore recommended that Type C MCBs 2000 metres are used for such circuits. When using assisted start motors, the usually quoted figures are 2.5 times the full load current, for periods generally longer than those for direct-on-line starters. It is thus important to establish the degree of inrush current in order to select a suitable MCB. In all instances, reference should be made to both the motor manufacturer’s curves and MK’s circuit breaker curves in order to select the compatible miniature circuit breaker. ## CAPACITIVE Surges on energisation, for example with discharge lighting, may well reach 25 times the rated current of the device, but only for very short duration. Type B devices will often be adequate, but for more specialised circuits, a Type C may be required. The lighting fitting manufacturer’s recommendations should be observed. - I Tunnel type, touch-proof, captive terminals - I Generous terminal capacity - I Can be used as single pole isolating switch ## **3. Fault breaking capacity** All Sentry MCBs have a short circuit breaking capacity of 6,000A (M6). For applications where the prospective fault current is in excess of this, a BS 88, 100A (maximum) fuse should be used upstream of the MCB to provide a system breaking capacity of 20,000A. ## **4. Discrimination with HRC fuses** A Sentry MCB consumer unit will normally be supplied via an HRC fuse. The HRC in such instances will be the major device and remain unaffected by any fault current which causes the MCB to operate. The level of fault current up to which this can be assured is determined by comparing the I[2] t characteristics of the two devices. Discrimination will theoretically occur up to the level at which the value of the total operating I[2] t of the MCB is below the minimum pre-arcing I[2] t of the fuse, although in practice, discrimination will be achieved at higher levels than this. ## **5. Cable protection** The current carrying capacity of the cable should always exceed the current rating of the MCB to prevent damage. However, should this not be the case, a further calculation may show that the MCB can still interrupt the current in a sufficiently short time to prevent overheating of the cable insulation. Although this will prevent mechanical damage to the cables, further overload protection should be provided by a separate device, e.g. a motor overload relay. In case of doubt please contact the MK Technical Sales and Service Department. ©2002 MK Electric Limited The Arnold Centre, Paycocke Road, Basildon, Essex SS14 3EA, United Kingdom Tel: +44 (0)1268 563720 Fax: +44 (0)1268 563064 email: more@mkelectric.co.uk www.mkelectric.co.uk Edition 09-02 TECHNICAL DATA SHEET ## **Sentry** **==> picture [68 x 9] intentionally omitted <==** **----- Start of picture text -----**<br> Dimensions (mm)<br>**----- End of picture text -----**<br> ## **Miniature Circuit Breakers** 3:3 **==> picture [212 x 191] intentionally omitted <==** **----- Start of picture text -----**<br> 18 60<br>T T =<br>LN 5945 s<br>B 45<br>81 240V60003 45<br>I ON<br>[: i<br>||<br>5.5 44 24<br>**----- End of picture text -----**<br> ©2002 MK Electric Limited The Arnold Centre, Paycocke Road, Basildon, Essex SS14 3EA, United Kingdom Tel: +44 (0)1268 563720 Fax: +44 (0)1268 563064 email: more@mkelectric.co.uk www.mkelectric.co.uk Edition 09-02
Updated at February 9, 2023
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