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NCE > Products > ABB LV Product Information
LV Switchgear and Controlgear Solutions
NCE is a solution partner of ABB.
Together with ABB, NCE has developed various Low Voltage Switchboards (LVB) and Motor Control Centres (MCC)
based on ABB LV switchgear and controlgear for different applications for different industries.
NCE provides technical support and switchgear/controlgear spare parts for our customers to ensure smooth and continuous operation and to facilitate testing & commissioning, maintenance, upgrading, modification and even replacement.
Below, you will find some technical information of the major components used in NCE Switchboards and MCC. You can also download product catalogues directly.
The switchgear and controlgear ranges below include ABB Tmax XT moulded case circuit breakers (MCCB), OS fuse switch-disconnectors, OT switch-disconnectors (isolators), and OTM automatic transfer switches (ATS). Ratings are quoted for 415V systems first, followed by 690V where applicable.
For further information and enquiry about spare parts, please contact Mr. Stephen Yuen (stephen.yuen@nce.com.hk).
Or see Contact Us page for more contact information.
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Product Information
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ABB Tmax XT Moulded Case Circuit Breaker (MCCB)
■ Standard: IEC 60947-2
■ Frame Size & Rating: XT2 (16–160A), XT4 (63–250A), XT5 (160–630A)
■ Version: Fixed-Mounted or Plug-In
■ Pole: 3-Pole or 4-Pole
■ Breaking Capacity Icu/Ics at 415V: 36/36kA (B), 50/50kA (S), 70/70kA (H), 100/100kA (V), 150/150kA (L)
■ Breaking Capacity Icu/Ics at 690V: 25/25kA (S), 50/50kA (H), 65/65kA (V), 100/100kA (L)
■ Utilization Category: Class A (XT2/XT4), Class B (XT5)
■ Intelligent Trip Unit: Hi-Touch electronic trip unit with selectable protection curves (LSIG), adjustable overload and short-circuit protection
■ Protection Functions: L (Overload LT), S (Short-time ST), I (Instantaneous INST), G (Ground-fault)
■ Communication: Bluetooth (via Ekip Connect module), Modbus RTU, PROFIBUS DP
■ Service Life: 25,000 mechanical operations (XT2), 20,000 (XT4/XT5)
■ Accessories: Auxiliary contacts, shunt/closing releases, undervoltage release, motorized operator, padlock, door interlock, Ekip Signalling module, Ekip Com module
Download Catalog
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ABB OS Fuse Switch-Disconnector
■ Standard: BS standard, IEC 60947-3
■ Frame Size & Rating: OS30 (32A), OS63 (63A), OS100 (100A), OS160 (160A), OS200 (200A), OS315 (315A), OS400 (400A), OS630 (630A)
■ Version: DIN-rail or direct mounting
■ Pole: 1P+N, 2P, 3P, 3P+N, 4P
■ Rated Voltage: up to 690V AC
■ Fuse Type: BS88 gG/gM fuses, cylindrical fuses (10×38, 14×51, 22×58) for OS30-OS160
■ Utilization Category: AC-23B (fuse combination unit)
■ On-Load Operation: Capable of on-load making and breaking
■ Safety Features: Fuse blown indication (optional), door interlock, visible break (optional for OS30–OS160)
■ Applications: Main distribution, feeder protection, motor circuits with fuse-based short-circuit protection
■ Accessories: Auxiliary contacts, padlock, handle extension, door interlock, fuse blown indicator
Download Catalog
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ABB OT Switch-Disconnector (Isolator)
■ Standard: IEC 60947-3
■ Frame Size & Rating: OT16 to OT3200 (16A–3200A)
■ Version: DIN-rail (OT16–OT125), direct mounting (OT160–OT3200)
■ Pole: 2P, 3P, 3P+N, 4P
■ Rated Voltage: up to 690V AC (415V/500V/690V depending on frame size)
■ Utilization Category: AC-23A (non-fuse load break switch)
■ On-Load Operation: Can make and break load current (AC-23A)
■ Safety Features: Visible break indicator, dual padlocking positions (switch handle & front cover), door interlock mechanism, separate key-operated handle lock
■ Busbar Connection: Top/bottom entry, rear busbars, cable box options
■ Applications: Main distribution isolation, sub-board isolation, feeder disconnection, maintenance isolation with dual safety lock
■ Accessories: Auxiliary contacts, door interlock, handle extension shaft, separate handle, padlock device, position indicator
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ABB OTM and TruOne Automatic Transfer Switch (ATS)
■ Standard: IEC 60947-6-1 (automatic transfer switch equipment), IEC 60947-3
■ Frame Size & Rating: OTM16 to OTM3200 (16A–3200A)
■ Version: Motorized change-over switches with automatic control unit (ACU)
■ Pole: 3P, 3P+N, 4P
■ Rated Voltage: up to 690V AC
■ Utilization Category: AC-33B (change-over duty with automatic control)
■ Transfer Time: Typically <10 seconds (configurable), fast transfer mode <1 second available
■ Control Unit: Automatic Control Unit (ACU) with microprocessor-based voltage and phase monitoring, programmable transfer logic, time delays, generator control interface
■ Safety Features: Mechanical interlock ensures only one source connected at a time, dual-power interlocking, manual emergency operation, position indication
■ Applications: Automatic transfer between mains and standby generator, dual-supply redundancy, critical load automatic switchover, UPS bypass switching
■ Communication: Modbus RTU, optional remote monitoring and control
■ Accessories: Auxiliary contacts, manual bypass switches, voltage sensing connectors, remote control panel, generator interface relay
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