Enapros India

Sector 33, Gurugram, Haryana

Onics UHPAR series resistor are capable of withstanding very high pulse loads, at the same time they get cooled faster compared to conventional resistors and are best suitable for wind turbines and other braking applications. These resistors are available in eleven different power ratings. These resistors are continuously rated.

Features :

• Low Cost
• High over load Capacity
• Compact Design
• Protection IP 54; other IP classes are also available
• Low Inductivity
• Thermal cut-off
• For higher wattage ratings, lifting hooks are also provided

Ordering Process
For Example :

• ONICS
• UHPAR 1KW 100R K T W3 MM/YY
• ONICS – Brand Name
• UHPAR1KW – Model Number
• 100R = Resistance Value,
• K =Tolerance 10% , T = Thermal Switch, W3= Wire Terminal 300MM Length, MM/YY = Month/year Of

Note :

• For 5% tolerance use J instead of K.
• For 500mm wire terminal length use W5 instead of W3.
• For clip terminal use C instead of W3 or W5.

These resistors are constructed by coiling wire and supported by ceramic insulatorson a steel strip. The resistive element is of stainless steel, fecral or Nickel Chromium. The standard end terminal is welded or screwed firmly to the resistive element, which provides good electrical connections to the resistive elements.

Features :

• Very economical.
• Low temperature coefficient elements for more stable resistance.
• High temperature ceramic core resists shock and vibration.
• With stands severe short time overlaods.
• Reliable terminals.
• Resistors can also be supplied in enclosure.
• Custom built resistors can be made.
• Easy to assemble as a bank.
• Closer Tolerance available.

Application : These Resistors are used in conjuction with appropriate control equipment to accelerate, dynamic braking of motors. These resistors are also ideally suited for use in the secondary of AC wound rotor motors for accelerating speed regulating services. These resistors are also used as neutral grounding resistors. AC and DC dynamic braking load banks, current limiting and blast for mercury vapor lamp.

Material Specifications :

• Enclosure options 2mm, 1.6mm and 1.2mm
• Powder coated or Galvanized Sheet enclosure.
• Resistive material Fecral, Nichrome or Stainless Steel.
• Thermal cutoff 160oC (Optional)
• Power Connection Copper/Aluminium Bus Bar or connector.
• Protection class available as per requirement.
• Dimensional Tolerance +/- 10mm.
• Custom Design Available.

Features :

• Low temperature coefficient elements for more stable resistance.
• Edge wise helical design for efficient cooling ensures long life.
• Massive high temperature ceramic core resists shock and vibration.
• With stands servere short time overloads.
• Reliable, stainless steel elements and terminals.
• Industry standard size for quick replacement of other major brands.
• Resistors can also be supplied in enclosure.
• Custom built resistors can be made.
• Easy to assemble as a bank.
• Standard mounting frame available.
• Available in various size as per customers requirement.
• Closer tolerance available.
• Alternate mounting available.
• Variable Terminal Clamp available.

Application : These Resistors are used in conjuction with appropriate control equipment to accelerate, dynamic braking of motors. These resistors are also ideally suited for use in the secondary of AC wound rotor motors for accelerating speed regulating services. These resistors are also used as neutral grounding resistors. AC and DC dynamic braking load banks, current limiting and blast for mercury vapor lamp.

Features :

• Low Price Small Size.
• High Power and Excellent load life stability
• Excellent short time over load
• Strongly resistant to moisture & solvent.
• Self-extinguish material is used in encapsulation.
• Non-inductive type available.
• High-surge-resistant items are available.
• Wire terminals available. Standard length 300mm
• longer length upto 1.25 mtrs. can also be supplied.
• Models with thermal switch available.
• Custom built resistors is our speciality.

Ordering Process
For Example :

• ONICS
• HPAR 1.5KW 100R K T W3 MM/YY
• ONICS – Brand Name
• HPAR1.5KW – Model Number
• 100R = Resistance Value,
• K = tolerance 10% , T = Thermal Switch, W3= Wire Terminal 300MM Length, MM/YY = Month/year Of

Note :

• For 5% tolerance use J instead of K.
• For 500mm wire terminal length use W5 instead of W3.
• For clip terminal use C instead of W3 or W5.

Onics DCR series resistor are capable of with standing high pulse loads, at the same time they get cooled faster compared to conventional resistors and are best suitable for dynamic braking. These resistors are available in five different power ratings. DCRE resistors are also available with standard enclosure upto 4500W, where multiple resistor are connected in series or paralled.

ConstructionDCR series resistor are manufactured by winding resistance wire coil of different resistive material on ceramic part supported by metal strip, ends of resistance wire are screwed firmly to end clamps These resistor are available individually or assembled in enclosure. Enclosures are yellow or white zinc or galvanized.

Features :

• Low Cost
• High Over Load capacity
• Compact Design
• Protection IP 20
• Low Inductivity
• Optional Mounting Available

features

low price small size.high power and excellent load life stabilityexcellent short time over loadstrongly resistant to moisture & solvent.self-extinguish material is used in encapsulation.non-inductive type available.high-surge-resistant items are available.wire terminals available. Standard length 300mm longer length upto 1.25 mtrs.(optional) can also be supplied.models with thermal switch available.custom built resistors is our speciality.

technical parameters

1. Operating temp. - -55°c - +275°c2. Insulation resistance - >20m min3. Dielectric strength - ac1500v, 3500v, 5000v for 1 min4. Temp. Coefficient - 50 ppm/°c, 100 ppm/°c, 260 ppm/°c5. Short time over load - 10 x wattage rating, 5 sec6. Moisture resistance - temp 40°c moisture 95% dc100v500h7. Thermal shock - wattage rating 30min. -25°c, 15min8. Vibration - 10c/c 50 c/s 10 c/s (1min) -2h each of paralleled and right angle.9. Load life - wattage rating 1.5 h on, 30min off, 1000h10. Derate to zero - at 275°c

note:if finned heatsink is used, surface area should be equal to the above heat sink area.

Features :

• Low cost & Light Weight
• Non-Inductive Type Available
• Good Heat Conduction
• Excellent Space Factor For Installation
• Higher or Lower Ohmic Values available
• Modules with Thermal Switch available

Applications :

• Charging Resistor
• Dynamic Braking Resistor
• Snubber Resistors
• Drives, Elevators, cranes, Hoists, CNC Machines
• Electric Cars and Power Source of Industrial Instruments

Material Specifications :

• Enclosure options 2mm, 1.6mm and 1.2mm
• Powder coated or Galvanized Sheet enclosure.
• Resistive material Fecral, Nichrome or Stainless Steel.
• Thermal cutoff 160oC (Optional)
• Power Connection Copper/Aluminium Bus Bar or connector.
• Protection class available as per requirement.
• Dimensional Tolerance +/- 10mm.
• Mounting U Slot  - 12mm
• Custom Design Available.

Construction : These type of resistors use sheets of Nichrome or Fecral or Stainless Steel as resistive material. These sheets are punched to required Ohmic values and then assembled on tie rod with ceramic support and insulation as module. Such multiple modules are assembled in an enclosure to achieve required power.

Applications :

• Loading Resistors
• Dynamic Braking Resistor
• Starting Resistors
• Neutral Grounding Resistor

Material Specifications :

• Enclosure options 2mm, 1.6mm and 1.2mm
• Powder coated or Galvanized Sheet enclosure.
• Resistive material Fecral, Nichrome or Stainless Steel.
• Thermal cutoff 160°C (OPTIONAL)
• Power Connection Copper/Aluminium Bus Bar or connector.
• Protection class available as per requirement.
• Dimensional Tolerance +/- 10mm.
• Custom Design Available.

In this type resistor is wound with Copper Nickel or Nickel Chromium wire on ceramic tube and then coated with high temperature non-flammable silicone coating. These resistors are suitable as loading resistors, braking resistor, capacitor discharge & many more application.

Features :

• Strong Terminals
• Resistance Value unchanged after long term use.
• Multi-terminal Types or adjustable types available.
• Non-inductive type available.
• Mounting hardware for all resistors available.
• Custom built resistors is our speciality

Note : Mounting hardware Optional. Add M if mounting hardware requires. eg. SVRV-M, SVRF-M

Onics load banks are designed to mimic electrical load such as generator and Ups, etc. in AC And DC circuits. Load banks are designed using specially maufactured elements. The elements are either made of  Iron-Chromium-Aluminum alloy or nickel-Chromium alloy. In AC circuits, it can provide both resistive and resistive-reactive loads. Load Banks are fan cooled with over temperature protection for efficient operation.

Features :

• Pan cooled Permanent/ Portable
• Main breaker (ncomer) provided
• Switching through MCB/ Contactor
• AC/DC
• Resistive/ Reactive
• Manual/ PLC controlled
• Touch Scree, / Remote controlled Data acquisition possible
• Digital energy meter provided
• Thermal protection
• Overcurrent protection
• Pan- failure protection

Applications :

• Generator testing
• UPS Testing & discharging
• Turbine Testing
• Reduce Wet Stacking
• Load Balancing

Where to use onics power resistors :

• Lift
• Hoists
• Railways
• Elevators
• Tower Lift
• Golf Carts
• Escalators
• Good Lift
• A/C Drivers
• D/C Drivers
• Generator
• Conveyors
• Soft starters
• Electric Cars
• Automobiles
• Tower Cranes
• Wind Turbines
• Textile Machinery
• Amusement Rides
• Amusement  Cars
• Medical Equipments
• Electric Pallet Lifters
• Centrifugal Machines
• Metal Working Machines
• Over head Cranes
• Minning Equipment
• Dumper Trucks
• Load banks

Features :

• Economical Fire-Proof Case
• Completely Welded Construction
• High Resistance Values Available.
• Non-Inductive type Available.

Constructions : These resistors are made by winding resistive wire on fibre glass cord or ceramic rods. Terminals are crimped or welded to end caps. This resistor assembly is then encapsulated in ceramic boat with high Temperature and fire retardant cement.

ConstructionAluminium housed Resistor are wound with Nickel Copper or Nickel Chromium wire for obtaining required resistance on a ceramic core fitted with end caps. The winded assembly is then encapsulated in a anodised Heat sink using high temperature moulding compound.

Features

• Low Cost, Light weight & Compact.
• Non-inductive Type available.
• Custom Values available.

ApplicationThese Resistors are applied where high wattage dissipation is required in a small space. The metal heat sink ensures good heat dispersal & allows a low hot-spot temperature. Major application include Induction furnace, Medical equipments, Humidity Chambers etc.

Deratings

• Deratings required for reduced chassis
• Mounted area and for high ambient temperatures.
• Derate to zero Power Linearly at 250^oC ambient.
• Derating necessary for unmounted resistors at ambient