Innovators in Protection Technology The Ultimate Safety Breaker

All products supplied from this catalogue carry a guarantee against defects in materials and workmanship for a period of 12 months from date of purchase as standard. manufacture, sale and distribution of all products featured in this catalogue. Technical Support is Free We offer free technical support and application software to all customers. This could range from selecting a product for an unusual application through to carrying out a protection study. Please call one of the telephone numbers shown below. We have made ordering easy for you by colour coding the sections of this catalogue and...

Safety and protection are the prime purposes of Terasaki products. You care about safety and protection. The users of products you specify care about safety and protection. We call TemBreak 2 the Ultimate Safety Breaker. Throughout this catalogue you will see our Safety+ mark. This is designed to draw your attention to safety features which exceed international standards. Please read further to discover the benefits of TemBreak 2.

PRODUCT LINES MOULDED CASE CIRCUIT BREAKERS Rated current (7n) from 20A to 1600A. Breaking page 3 TemBreak The Ultimate Safety Breaker

TEMBREAK 2 MOULDED CASE CIRCUIT BREAKERS 16A TO 1600A 1. Welcome to TemBreak 2 • Easy Selection Guide • Safety Plus • Exceeding Standards • Reducing Environmental Impact 2. Ratings and Specifications 3. Operating Characteristics 4. Application Data 5. Accessories 6. Installation 7. Dimensions The Ultimate Safety Breaker

WELCOME TO TEMBREAK 2 EASY SELECTION GUIDE The TemBreak 2 range of products includes: - Moulded Case Circuit Breakers (MCCBs) - Switch-Disconnectors in the same compact moulded case frame sizes as MCCBs - A comprehensive range of accessories which are common to MCCBs and Switch-Disconnectors. All internal accessories are common to all frame sizes. Key to Model and Type Designations Model Denoted by Type Denoted by Low breaking capacity Medium breaking capacity High breaking capacity Extra High breaking capacity Fixed thermal, fixed or adjustable magnetic Adjustable thermal, adjustable magnetic...

EASY SELECTION GUIDE Frame Rating (A) MCCBs Model Switch-Disconnectors Model Note: All breaking capacities are r.m.s. symmetrical at 415V AC The Ultimate Safety Breaker

10 REASONS TO USE TEMBREAK 2 1. FIELD-INSTALLABLE ACCESSORIES • Accessories can be fitted by the switchboard builder or added by the end-user. • Handles and motor operators can be rapidly fitted using the locking pegs. It takes less than 10 seconds to secure a handle or motor to the MCCB – a great time saving compared to alternative products. • All accessories are endurance tested to the same level as the host MCCB. Locking Pegs 2. SAFETY LOCK FOR PLUG-IN VERSIONS The plug-in MCCB is locked to the base when the toggle is ON. It cannot be removed unless the toggle is OFF or TRIPPED. The safety...

6. COMPACT CHANGEOVERS The mechanical interlock is installed on the front of the MCCB, and is compatible with motor operators and handles. An automatic changeover system can be assembled very easily by a switchboard builder or end-user. Changeover Pair with Link Interlock and Motor Operators Viewed from Below (250A frame) 7. DIRECT OPENING Under the heading “Measures to minimise the risk in the event of failure”, IEC 60204-1 Safety of Machinery-Electrical Equipment of Machinery includes the following recommendation: “-the use of switching devices having positive (or direct) opening operation.”...

WELCOME TO TEMBREAK 2 SAFETY PLUS Terasaki have an innovative approach to product design. Our goal is to develop products which not only meet, but exceed recognised standards. We use our knowledge of related applications to improve circuit breaker designs. For instance, when developing the Direct Opening Action, we applied ideas from a machinery safety standard to the design of the TemBreak 2 switching mechanism. This proactive development policy confirms our reputation as Innovators in Protection Technology. Machine Safety Opening force is transmitted directly from the toggle switch Contacts...

SAFETY PLUS Visual Safety You can easily see if a breaker is open, closed or tripped. SAFETY+ coloured indicators boldly display the ON or OFF status. The indicators are fully covered if a breaker trips, and black is the only visible colour. This is a unique safety feature. You can identify faulty circuits at a glance. The toggle position always matches the position of the main contacts. Touch Safety The risk of touching live parts has been minimised by design. These features reduce the risk of touching live parts: • There are no exposed metal screws on the front face • IP20 protection at the...

WELCOME TO TEMBREAK 2 EXCEEDING STANDARDS Safety Plus TemBreak 2 MCCBs exceed the requirements of recognised standards. International Compliance • The TemBreak 2 MCCB complies with the international standard IEC 60947-2 • TemBreak 2 Switch Disconnectors comply with IEC 60947-3 • Accessories comply with IEC 60947-5-1 or IEC 61058-1 • The entire range conforms to the IEC general rules for switchgear, IEC 60947-1 • TemBreak 2 MCCBs comply with JIS C 8201-2-1 Ann.1 • The TemBreak 2 range complies with the EC Low Voltage Directive and all models are CE marked • TemBreak 2 MCCBs carry the IEC symbol...

REDUCING ENVIRONMENTAL IMPACT Longer Life Cycle It makes good environmental sense to install a product with a long life expectancy. If you install a TemBreak 2 MCCB, you can expect it to stay in service for at least 30,000 mechanical operations (250A Frame). This is 22,000 more operations than recommended by IEC 60947-2, the international standard for circuit breakers. If a system must be upgraded in future, we have made the following provisions for recycling: 1 The modular design of TemBreak 2 allows component parts and accessories to be easily disassembled and separately disposed of. Moulded...