E1 Plus Relays Selection Guide
The E1 Plus Relay Selection Guide offers a comprehensive insight into Allen Bradley's electronic overload relays. These relays are equipped with their power source. This immediately measures current, reduces temperature increase, and makes simple installation to provide exact motor protection. Their broad adjustment range and rugged construction make them a cost-effective choice. The explanations of catalog numbers, which are essential for identifying products, are also included in the book. This manual offers an unmatched range to fit your individual demands, providing superior performance in several applications, whether you're looking for dependable industrial automation solutions or need to replace old relays.
Understanding E1 Plus Relays
The Allen Bradley E1 Plus is an electronic overload relay that has its own power source. This enables it to be equipped similarly to conventional overload relays. We can set up the instrument by adjusting the potentiometer settings to match the motor's FLA rating. Temperature rise difficulties within control cabinets are minimized by the electronic design's low energy consumption. The bimetallic option requires twice as many catalog numbers to cover the exact electrical current range as the broad 5:1 adjustment range. This lowers the expense of maintaining inventory and gives dual-voltage equipment more installation options. The installation configuration is made easier by the evenly placed setting tick marks.
Features
Reliable Operation
- Protection based on measuring current: The “E1 Plus Overload Relay” detects motor current directly as opposed to electromechanical overload relays, which simulate motor heating by passing motor current via heating elements. The thermal state of a motor is more correctly modeled by current measurement-based overloading safety. In addition, across the designated temperature working range, the performance of contemporary measurement-based systems is unaffected by ambient temperature.
- Electronic Layout: Electronic precise solid-state elements are used to do thermal modeling, and the application-specific integrating circuit (ASIC) that powers the “E1 Plus Overload Relay” serves as its brain. The ASIC continuously analyzes motor current information to precisely track the motor's thermal ability application value over time.
- Thermal Memory: It empowers the E1 Plus Overload Relays to replicate the cooling and heating effects caused by the motor on and off duration. This capability accurately protects motors operating in elevated and lower temperature conditions.
- Improvements in Phase Loss Prevention: The E1 Plus Overload Relays have an isolated phase loss recognizing circuit that enables it to react swiftly to phase loss circumstances; the normal response time is 3 seconds.
Simple Selection and Implementation
- Simplified Installation: The “E1 Plus Overload Relay” installs similarly to conventional overload relays because of its self-powered layout. Configure the instrument by adjusting the potentiometer to match the motor's FLA rating. Temperature rise difficulties within control cabinets are minimized by the electronic design's low energy consumption.
- Wide Customization Options: For the identical current spectrum, a broad 5:1 changes range needs half as many catalog numbers as the bimetallic option. This lowers the expense of maintaining inventory and gives dual-voltage devices more installation options. The installation configuration is made easier by the evenly placed setting tick marks.
Rugged Structure
- Power connections with over-molding: Unrivaled in the manufacturing sector, the distinctive line-side power connections with over-molded provide a strong two-component starting assembly. The power connections are already established, making starting setup simple every time.
- Electrical Current Transformers: The electrical current transformers are held independently in the overload casing to provide the highest resistance to stress and vibration circumstances. Varnished layers offer reliable performance and extra corrosion protection.
- Bistable Relay: The sturdy construction of the bi-polar bistable relay ensures reliable operation in the most demanding applications. For usage in industrial settings, the self-enclosed relay provides extra environmental protection.
Application Versatility
- DIP switch setting: The 193-EE relay provides DIP Switch options for choosing the trip class (10, 15, 20, or 30) and the reset mode, enhancing the versatility of these devices.
- Isolated contacts: The arrangement of isolated contacts permits the utilization of N.C. (Normally Closed) and N.O. (Normally Open) contacts in circuits functioning at varying voltage levels, devoid of any polarity constraints. With a B600 contact rating, these contacts can be employed in circuits rated up to 600 volts.
Pass-through Choice
Compared to an E1 Plus put-in panel mounting adapter, the E1 Plus Pass-thru takes about 48% less panel area. The design gives an integrated panel mount holes DIN Rail mounting. It is available for catering to various applications, including Panel Mount and DIN Rail scenarios, externally current transformers, and compatibility with contactors other than Allen-Bradley. While offering the same extensible safety and communication features as a conventional E1 Plus, the E1 Plus Pass-thru Overload Relay does not need an extra panel mount adaptor. This is ultimately saving money and important panel space.
E1 Plus Relays Catalog Number Explanation
Understanding the catalog numbers of E1 Plus relays is pivotal for effective product identification and selection. This section offers insight into the composition and significance of these catalog numbers. However, please note that the examples provided here are solely for illustrative purposes and should not be utilized for actual product selection, as not all groupings result in valid catalog numbers.
193 (a) – EE (b) C (c) B (d)
A) Bulletin Number
The Bulletin number serves as the first part of the catalog number and signifies the specific series or type of E1 Plus relay. Below are the available Bulletin numbers and their respective descriptions:
- 193: This Bulletin number designates IEC Three-phase E1 Plus relays.
- 193S: The "193S" Bulletin number corresponds to IEC Single-phase E1 Plus relays.
- 592: "592" identifies NEMA Three-phase E1 Plus relays.
- 592S: Finally, "592S" is used for NEMA Single-phase E1 Plus relays.
B) Type
The second part of the catalog number, denoted as "b," represents the type of E1 Plus relay. It provides information about the specific characteristics and functionality of the relay. Below are the available types and their descriptions:
- ED1: This type is associated with “E1 Plus Overload Relay,” which offers a fixed Trip Class 10. It is primarily utilized for protection against overloads.
- EE: The "EE" type signifies E1 Plus relays with a Selectable Trip Class. These relays offer the flexibility to adjust the trip class according to specific application requirements, enhancing protection customization.
C) Adjustment Range
The "Adjustment Range" code descriptions provide vital information about the permissible adjustment range for three-phase E1 Plus relays. This range indicates how much the relay's settings can be customized to suit specific applications. Here are the code descriptions, along with their corresponding adjustment ranges:
- A: Adjustable from 0.1 to 0.5 times the continuous current rating.
- B: Customizable range 0.2 to 1.0 times.
- C: Allows adjustment lying between 1.0 to 5.0 times.
- D: Provides flexibility from 3.2 to 16 times.
- E: Adjustable range 5.4 to 27 times.
- F: Customizable between 9 to 45 times.
- G: Allows adjustments from 18 to 90 times.
- H: Provides a range of 30 to 150 times.
- J: Customizable range 40 to 200 times.
- K: Allows adjustment from 60 to 300 times.
- L: Provides flexibility from 100 to 500 times.
- M: Adjustable in the range of 120 to 600 times.
- N: Customizable within the range of 160 to 800 times.
- W: Allows adjustments from 80 to 400 times.
- Q: Provides customization options ranging from 11 to 55 times.
Code descriptions for single-phase E1 Plus relays' "Adjustment Range" indicate the range within which the relay's settings can be customized:
- P: 1.0 to 5.0 times.
- R: 3.2 to 16 times.
- S: 5.4 to 27 times.
- T: 9 to 45 times.
- U: 18 to 90 times.
- V: 60 to 120 times.
These codes offer flexibility for precisely customizing the relay's settings to suit specific single-phase applications, ensuring adequate protection and performance.
D) Bulletin 100 IEC Contactor Size
The Bulletin 100 IEC Contactor has Size codes, which help users identify the compatible contactor size for E1 Plus relays:
- B: C09 to C23
- D: C30 to C43
- E: C60 to C97
- F: D115 to D180
- G: D210 to D420
- H: D630 to D860
- J: E116 to E205
There are Bulletin 500 NEMA Contactor Size codes, which help users identify the compatible NEMA contactor size:
- T: Compatible with NEMA Size 00 contactors.
- C: Suitable for NEMA contactor sizes from 0 to 2.
- D: Indicates compatibility with NEMA Size 3 contactors.
- E: Designed for NEMA Size 4 contactors.
- F: Matches with NEMA Size 5 contactors.
- G: Corresponds to NEMA Size 6 contactors.
Mounting Options
- Integrated Mounting for Streamlined Wiring: Streamlined panel mounting with pass-through wiring.
- Panel mounting with current transformers: Panel mounting with external current transformers for precise current measurement and protection.
Conclusion
The E1 Plus Relays Selection Guide demonstrates the adaptability and effectiveness of Allen Bradley's electronic overload relays. These relays provide a dependable answer to motor protection demands due to their distinct self-powered design and accurate current-based protection. The detailed catalog number explanations in the guide enable users to make knowledgeable decisions and ensure compatibility. With a wide range of models catering to various current ratings and communication options, these relays simplify installation, enhance motor safety, and reduce operational costs. The E1 Plus relays demonstrate to be a solid option, combining resilience, adaptability, and simplicity of use, whether in industrial settings or other automation applications.
