EFIT SCR Power Controllers

The Perfect Fit for Simple Applications

Uncompromising process performance in a cost effective format

Easy to integrate and commission, yet highly cost effective, the EFit power controller provides no compromise control for resistive and infrared heating elements. Ideal for all heating applications and fully compliant to international quality, immunity, and emissions standards, Efit achieves outstanding stable, precise control in the most demanding industrial environments, even when cabinet space is at a premium.

The perfect fit for simple heating applications

Some Industrial processes such as heat treatment require precise temperatures in order to comply with regulations and it is imperative that the workpiece temperature is kept within specific limits. This can be difficult to achieve in industrial plants where the operation of large machinery can cause fluctuations in the voltage supply. In the case of resistive heaters a variation of 10% in the supply voltage will generate a 20% variation in the power to the load, resulting in undesirable temperature fluctuations. EFit contains built in compensation that continues to apply stable power with better than ±2% linearity at the boundaries of the load, even during fluctuations in the supply. The result is a reliable, repeatable heating process and high quality end products compliant to demanding heat treatment standards.

  • Connect Easily
    — No configuration
    — Compact installation
    — Global standardization
  • Control precisely
    — Eliminate voltage fluctuations
    — Achieve tight tolerances
    — Optimise energy use
  • Improve processes
    — Minimise downtime
    — Maximise throughput
    — Reduce cost of ownership
EFit SCR Power ControllerEFit SCR Power Controller

The perfect fit

Connect Easily

Straightforward connection and commissioning, combined with a compact format to maximise use of
cabinet space makes EFit the perfect fit for power control in both new and retrofit applications.

Easy Installation

  • Nothing to configure — plug and play
  • Nothing to fix — just clip onto DIN rail
  • Minimal connection — pre-wireable plug in connectors

Easy Integration

  • Compact dimensions reduce cabinet costs
  • Integrates worldwide — global standard approvals and international
    voltages
  • Consistent form factor — same height and depth across the range
  • Ideal form and fit drop in replacement for Eurotherm TE10A

Improve Processes

Designed to give a fast stable response even in heavy industrial
environments, EFit will enable you to run continuously optimised
heating processes with minimum down time. This faster throughput improves OEE (Overall Equipment Effectiveness), helping you achieve
your KPIs (Key Performance Indicators).

Increase throughput

  • Maximise utilisation of plant equipment
    thanks to fast stable control response

Reduce down time

  • Reliably operates in heavy industrial conditions — high immunity to electromagnetic disturbances
  • Robust — operates in high temperature, humidity and altitude environments

Control Precisely

EFit offers built in power stabilisation and a variety of firing modes for different types of load, which lead to energy savings and higher quality end products when compared to more basic power controllers.

Reduce hidden energy costs

  • No wasted energy — built in compensation provides stable power control even during power fluctuations, eliminating unexpected changes in heater temperature
  • Better power factor— save hidden energy costs with dedicated firing modes for each type of load, including a variety of burst modes that provide an efficient alternative to Phase Angle, such as advanced single cycle firing to reduce flicker in short-wave infrared heaters

Consistently high quality end products that comply to standards

  • No scrap or rework - linearity better than ±2% of range, accurately controls heaters and maintains the correct load temperature

Standardise Globally

EFit power controllers offer peace of mind for installers working in a
global environment where industry regulations form an essential part of the engineering supply chain.

  • Conformity to cUL directive (Canada and
    USA)
  • CCC exempt: product not listed in catalogue of products subject to compulsory certification
  • China RoHS
  • CE compliance to power controller product standards

EFit SCR Power ControllerEFit SCR Power Controller
EFit SCR Power ControllerEFit SCR Power Controller
EFit SCR Power ControllerEFit SCR Power Controller

Technical Specification

General
Directive : EMC directive 2004/108/EC
Low Voltage Directive 2006/95/EC
Safety specification:

EN 60947-4-3:2000 ( 2000-01-12)
+ EN 60947-4-3:2000/A1:2006 (2006-12-08)
+ EN 60947-4-3:2000/A2:2011 (2011-09-02)

EMC emissions specification: EN 60947-4-3:2000 ( 2000-01-12)
+ EN 60947-4-3:2000/A1:2006 (2006-12-08)
+ EN 60947-4-3:2000/A2:2011 (2011-09-02)
Class A product
EMC immunity specification: EN 60947-4-3:2000 (2000-01-12)
EN 60947-4-3:2000/A1:2006 (2006-12-08)
EN 60947-4-3:2000/A2:2011 (2011-09-02)
Vibration tests: EN60947-1 annex Q category E
Shock tests: EN60947-1 annex Q category E
Approvals
cUL: UL60947-4-1A and UL60947-1
CE: EN60947-4-3 and EN 60947-1
A certificate of conformity can be provided
on simple request
CCC exempt: Product not listed in catalogue of products
subject to compulsory certification
China RoHS:
Restriction of Hazardous Substances compliant
Protection: IP20, According to EN60529 – CE
Open type – UL
Condition of use 
Atmosphere: Non-corrosive, non-explosive, non-conductive
Operatoring temperature:
0 to 45°C without derating
Storage temperature:
–25°C to 70°C (maximum)
Altitude:
1000m maximum at 45°C
2000m maximum at 40°C
For higher temperature see de-rating curves
below
Degree of pollution:
Degree 2
Humidity limits:
5% to 95% RH (non-condensing)

 EFit SCR Power Controller Technical Specification

Current derating curves as a function
of ambient temperature
I N = nominal current at 45°
for an altitude up to 1000m.

EFit SCR Power Controller Technical Specification

Current derating curves as a function
of ambient temperature
I N = nominal current at 40°C
for an altitude up to 2000m.

Power
Nominal current: 16 to 50A
Nominal voltage: 100V to 500V (+10%/–15%). Refer to
order code for more details
Frequency: 47Hz to 63Hz
Thyristor protection: High speed fuse
Type of loads:
AC51: Pure resistive
AC56a: Transformer Primary
AC55b: Short wave infra-red
Power terminals: Safe cage type, cable size 1.5 to 16mm²
tightening torque 2.3Nm (20.4 lb.In)
Safety earth screw terminal: Cable size 1.5 to to 16mm²
tightening torque 2.3Nm (20.4 lb.In)
Control
Supply of electronics: Self powered product: 100V ac to 500V ac
Auxiliary supply: 115V ac or 230V ac
Auxiliary supply must be in phase with the
line. The control circuit shall be protected by
a ATM2 fuse rated 600V ac/dc, 2A, 100kA
Control setpoint: Either analogue (analogue input or
potentiometer) or logic
Analogue input signal:

DC voltage:

0-5V, 0-10V, Input impedance 100k ohms
DC current: 4-20mA 250 ohms
Burden resistor 250 ohms
Potentiometer: A ‘5V user’ voltage is available between
terminals 5 and 7 to be used with an external
potentiometer of 10Kohm. One
potentiometer per unit should be used
Logic: Contact for On/Off logic operation
Control terminals Plug-in connector 0.5 to 2.5mm²
(24 to 12AWG) cables
Tightening torque 0.6 Nm (5.31 lb.In)
Control Performance
Linearity: Better than ±2% of the full range
Stability: Better than ±2% of the full range with
constant resistance
Automatic compensation for supply
fluctuation (variation: between –10% and
+10% of the nominal voltage).
Firing modes:
Burst: Burst variable (16 periods)
Single cycle
Advanced single cycle
Phase angle: With or without current limit
EFit SCR Power Controller example

Mechnical Details

 Model      Height Width Depth Weight Mounting
16A 115mm 52.5mm 92.5mm 0.55kg DIN rail
25A 115mm 70mm 92.5mm 0.7kg DIN rail
40A 115mm 105mm 92.5mm 0.9kg DIN rail
50A 115mm 122.5mm 92.5mm 1.2kg DIN rail

Mounting: DIN rail

EFit SCR Power Controller Mechnical DetailsEFit SCR Power Controller Mechnical Details
EFit SCR Power Controller Mechnical DetailsEFit SCR Power Controller Mechnical Details
EFit SCR Power Controller Mechnical DetailsEFit SCR Power Controller Mechnical Details

Order Codes

Basic Product
EFIT Basic SCR Power Controller
1 Current
16A 16 amps
25A 25 amps
40A 40 amps
50A 50 amps
2 Voltage
100V 100 volts
115V 115 volts
200V 200 volts
230V 230 volts
240V 240 volts
277V 277 volts
380V 380 volts
400V 400 volts
415V 415 volts
440V 440 volts
480V 480 volts
500V 500 volts

 

3 Input
0V5 0–5V dc
4mA20 4–20mA
0V10 0–10V
4 Firing Mode
FC Fast cycle
FC1 Single cycle
SCA Advanced single cycle
PA Phase angle
5 Language
ENG English
FRA French
GER German
6 Supply
SELF Self-powered
115V Auxiliary 115V
230V Auxiliary 230V
7 Current Limit
XX Without current limit
CL With current limt (only with Phase angle)
8 Fuse
NOFUSE Without fuse
MSFUSE Fuse with microswitch
FUSE Fuse without microswitch

Temperature Controllers:

Process Application Control

Whether it is Open-Loop or Closed-Loop Control, a good Control System is critical for long heater life.*

Here we demonstrate a Closed-Loop (Feedback) Control Set-up ~
Generally considered the optimal method, a closed-loop heater control system uses a power controller, temperature controller, and thermocouple to provide a constant output temperature, regardless of changes in airflow.

Process Application ControlProcess Application Control

*CAUTION - 
Only qualified individuals should
wire these installations

INDUSTRY-NET-PREFERRED-SUPPLIER-LOGOINDUSTRY-NET-PREFERRED-SUPPLIER-LOGO
INDUSTRY-NET-PREFERRED-SUPPLIER-LOGOINDUSTRY-NET-PREFERRED-SUPPLIER-LOGO
  • Calculator
  • Standard Flow Rate (SCFM) Calculator

    Calculate the SCFM.

    Power Flowrate Calculator

    Calculate the electrical power, flow rate or temperature requirement.

    Temperature Conversion

    Fill in one value to calculate the other.

    Ohms Law Calculator

    Fill in two values to find the other two.

    Pressure Conversion

    Fill in one value to calculate the other.

    Three Phase Unit Calculator

    Fill in two values to find the 3rd.

    Single Phase Unit Calculator

    Fill in two values to find the 3rd.

    Parallel Resistance Calculator

    Calculate the total resistance in ohms of resistors that are in parallel by entering the value of each below.

    Series Resistance Calculator

    Calculate the resistance in ohms of resistors connected in series by entering the value of each.

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