CEP7 Solid State Manual reset or automatic reset can ...

1 cep7 Solid State Advanced Solid State Manual reset or automatic reset can be selected with dip switches on the motor protection Overload Relays The cep7 Solid State overload relay in- cep7 -EE models. CEP7S-EE is a 1-phase application cludes advanced technology with several overload relay packing all features of key features like: the 3-phase cep7 -EE model. Selectable trip class and field B installable modules A wide (5:1) set current adjustment range cep7 Overloads A robust mechanical and electrical mounting Self-sealed latching mechanism The basic concept of utilizing Ap- plication Specific Integrated Circuits (ASICs) results in an affordable Solid State overload relay. This kind of versatility and accuracy is simply not possible with traditional bimetal- lic or eutectic alloy electromechanical overload relays. Wide current adjustment range Fewer units means greater Thermal or bimetallic overload relays application flexibility typically have a small current adjust- The cep7 Soild State Overload Relay ment range of :1 meaning that the is available in three basic models: maximum setting is generally times cep7 -ED1 is a Class 10, Manual re- the lower setting.

2 The cep7 caused set model available up to 45 amperes the industry to take note of the flex- which covers the most common ibility when it first introduced a :1. horsepower motors and your every adjustment ratio. A wider adjustment day application. This model is eco- range is the primary reason the indus- nomically priced to be competitive try has been turning to more specifica- with adjustable bimetallic overload tions calling for electronic overload relays. relay protection over thermal overload cep7 -EE is a full featured select- relays. Sprecher + Schuh's cep7 over- able trip class (10, 15, 20 & 30) load relay is capable of adjustment to a 3-phase application overload relay maximum of five times the minimum with provision for field mountable set current, which dramatically reduces modules to handle remote reset , the number of units required on-hand jam protection, and other modules to cover the full range of current set- previously available only in higher tings up to 200 amperes.

3 Priced electronic overload relays. 5 : 1 Current Range 45A 45A 120A 30A 200A. B2. visit for pricing - All pricing and theshown most in upUS. to dollars date information SSNA2018. Selectable tripping class operate in -20 C. or up to 60 C (140. F.) and withstand 3G of vibration or Because of today's lighter T-frame mo- 30G of shock on a mountain up to tors, Class 10 overload relays (relays an altitude of 2000m or in a jungle at that trip within 10 seconds of a locked 95% humidity. Reliability under every rotor condition) have become the conceivable environmental condition industry standard. If your application is a quality built into the design of the B. requires a longer motor run-up time, cep7 electronic overload relay. the cep7 -EE Selectable Trip Class has DIP-switches providing Trip Class Self-powered design cep7 Overloads selection of 10, 15, 20 or 30 seconds. This ability allows you to closely match the Trip Class with the run-up time of means convenience the motor.

4 By developing the power it requires cep7 overload relays are available with Class 10, 15, 20 or 30 tripping characteristics from the applied voltage, the cep7 is Choice of reset options self-powered, eliminating the need for a separate control power source. Most industrial applications usually This is not the case with some other call for an overload relay that must be electronic overload relays. Since the manually reset in the event of a trip. cep7 is self-powered and a traditional This allows the cause of the overload auxiliary contact is used to interface to be identified before with the contactor, the user can apply the motor is restarted. In the cep7 the same way as an electro- specialized cases, how- mechanical overload. No special con- ever, such as rooftop AC nections or control schematic diagram units or where restarting provisions are required in 3-phase the motor will not harm applications. people or equipment, automatic reset may Selectable DIP switch for: be desired.

5 cep7 -ED1 Superior phase overload relays are avail- Manual versus automatic mode Trip class (10, 15, 20 or 30) able with Manual reset failure protection exclusively which keeps The cep7 's on-board electronics are the cost down. cep7 -EE constantly monitoring all three phases. models have a selectable dip switch for If the ASIC board senses that one Manual or automatic reset modes. phase is missing during a steady State running condition on a fully loaded motor, it will trigger in 3 seconds. If a Robust design single phase condition is present dur- The cep7 has been designed to physi- ing starting, the cep7 will trip within cally extend to the back-pan therefore 8 seconds (for a motor >80% loaded). aligning the mounting of the overload These times are much faster than any with the corresponding contactor. thermal bimetallic overload relay. In Further, the mechanical attachment addition, cep7 overload relays detect and direct electrical connection to the a 50% phase imbalance in the same contactor provides a robust mounting, way as a phase loss.

6 Mechanical which means less damage from ship- attachment ping or during field wire installation. The bipolar latching relay which con- trols the normally closed trip contacts and normally open alarm circuit con- tacts have been self-enclosed, therefore insulating the electromagnet and shielding against airborne metal parti- cles and other potential environmental debris. The cep7 has been tested to B3. SSNA2018 visit for pricing - All pricing and theshown most in upUS. to dollars date information Increased accuracy and improved motor protection Microelectronics provide flexible and accurate motor overload protection. Unlike traditional overload relays that simulate heat build-up in the motor by passing current through B a heater element, cep7 Solid State overload relays measure motor current directly through integrated current cep7 Overloads transformers. The transformers, in turn, create a magnetic field that induces DC voltage onto the ASIC.

7 Board. The electronics identify excessive current or loss of phase more accurately, and react to the condition Additional Protection with with greater speed and reliability than Side Mount Modules traditional overload relays. In addition, cep7 Solid State relays offer setting The cep7 offers a variety of field accuracies from 5% and repeat installable accessories for side mount accuracy of 1%. on the left side. Side mount modules provide additional motor protection 6. functionality traditionally found only 5 Dramatically lowered on more expensive models. Modules 4. energy requirement saves include the following additional Watts 3 features. 2. money, reduces panel space Remote reset provision for reset Because traditional overload relays after trip from a remote pilot device 1. work on the principle of modeling Jam Protection/Remote reset 0. Thermal cep7 -ED1CB cep7 -EE_D cep7 -EE_E the heat generated in the motor provides adjustable Jam set points -ED1EB.

8 (recreating the heat in the bimetal and trip delay plus remote reset Conventional overload relays dissipate as much elements or heaters), a significant Ground Fault Protection/Remote as six watts of energy compared with as little as amount of energy is wasted. In reset combined with ground watts for a camparable size cep7 traditional bimetallic overload relays, fault current transformers provide as many as six watts of heat are adjustable set points for ground dissipated to perform the protective fault trip protection of equipment function. Because the cep7 uses plus remote reset sampling techniques to actually Ground Fault/Jam Protection/. measure the current flowing in the Remote reset combines all three circuit, very little heat is dissipated features as described above in the device as little as watts. PTC Thermistor Relay/Remote This not only reduces the total amount reset manages thermistor sensor of electrical energy consumed in an signals from the motor application, but it can also have a Network Communication dramatic impact on the design and Modules provide motor diagnostic layout of control panels.

9 The density information via Ethernet of motor starters can be much greater communication because less heat is generated by each - Two discreet Inputs and one of the individual components. Higher discreet Output density results in smaller control - Differentiate between various panels. In addition, special ventilation motor protection algorithms or air conditioning that might have - Overload and underload warning been required to protect sensitive - Jam protection electronic equipment such as PLC's - Proactively alert maintenance can now be reduced or eliminated. personnel just before or when a cep7 overload relays dramatically fault occurs reduced energy requirement saves - Plus remote reset money and reduces panel space. B4. visit for pricing - All pricing and theshown most in upUS. to dollars date information SSNA2018. Solid State Overload Relays cep7 . Directly Mounted cep7 Solid State Overload Relays, Manual reset .

10 Trip Class 10. Directly Mounts Adjustment B. Overload Relay to Contactor Range (A) Catalog Number Price Manual reset for 3 Applications . cep7 -ED1AB cep7 Overloads cep7 -ED1BB CA7-9 CA7-23. cep7 -ED1CB CAN7-12, CAN7-16. 16 cep7 -ED1DB 27 cep7 -ED1EB cep7 -ED1CD CA7-30 CA7-55 16 cep7 -ED1DD CAN7-37, CAN7-43 27 cep7 -ED1ED 9 45 cep7 -ED1FD Directly Mounted cep7 Solid State Overload Relays, automatic / Manual reset . Directly Mounts Adjustment Adjustable Trip Class 10, 15, 20 & 30 TIP! Most industrial applications usually call for an Overload Relay to Contactor Range (A) Catalog Number Price overload relay that must be manually reset in the automatic or Manual reset for 3 Applications event of a trip. This allows the cause of the over- cep7 -EEAB load to be identified before the motor is restarted. cep7 -EEBB An overload relay that resets automatically is gen- CA7-9 CA7-23 erally for specialized, or remote applications, such cep7 -EECB as rooftop AC units where restarting the motor CAN7-12, CAN7-16.