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UL

Underwriters Laboratories® Inc. (UL) is an independent product safety certification organization Based in Northbrook, Illinois.

UL develops standards and test procedures for products, materials, components, assemblies, tools and equipment, chiefly dealing with product safety.

UL does not “approve” products. Rather it evaluates products, components, materials and systems for compliance to specific requirements, and permits acceptable products to carry a UL certification mark, as long as they remain compliant with the standards.

Ametherm SL22 2R515

Inrush current limiting thermistor
Resistance of 2.5Ω(at 25°C)
Maximum steady state current of 15A
Maximum recommended energy of 90J
Voltage ratings of 120VAC and 240VAC
Body temperature of +172°C at maximum current

Ametherm SL22 30005

Inrush current limiting thermistor
Resistance of 30Ω ±20% (at 25°C)
Maximum steady state current of 5A
Maximum recommended energy of 80J
Voltage ratings of 120VAC and 240VAC
Body temperature of +172°C at maximum current

Ametherm SL22 4R014

Inrush current limiting thermistor
Resistance of 4Ω (at 25°C)
Maximum steady state current of 14A
Maximum recommended energy of 100J
Voltage ratings of 120VAC and 240VAC
Body temperature of +214°C at maximum current

NVE IL422E

Industry-standard Isolated RS-485/RS-422 transceiver
1ns pulse skew
Low EMC footprint
Isolation of 2.5 kV_RMS
Working voltage of 600V_RMS
Thermal shutdown protection
UL 1577 approved; VDE V 0884-10 certified, meets or exceeds ANSI 422-B, EIA 485-A and ITU recommended V11
0.3″ 16-pin SOIC package

NVE IL485E

Industry-standard Isolated RS-485 transceiver
1ns pulse skew
Isolation of 2.5 kV_RMS
Thermal shutdown protection
UL 1577 & IEC 61010-2001 approved; meets or exceeds ANSI RS-485 and ISO 8482:1987(E)
0.3″ 16-pin SOIC package

NVE IL485WE

Industry-standard Isolated RS-485 transceiver with handshake
1ns pulse skew
Isolation of 2.5 kV_RMS
Thermal shutdown protection
UL 1577 & IEC 61010-2001 approved; meets or exceeds ANSI RS-485 and ISO 8482:1987(E)
0.3″ 16-pin SOIC package

RARA ULF100C

Flat type metal clad wire wound resistor
Resistance options from 1Ω up to 1.1kΩ
Power rating of 100W (on a heat sink)
Tolerance options between ±0.5% and ±10.0%
TCR of +260 ppm/°C maximum
For Non UL Approval see the IRF Series

RARA ULF150C

Flat type metal clad wire wound resistor
Resistance options from 1Ω up to 1.75kΩ
Power rating of 150W (on a heat sink)
Tolerance options between ±0.5% and ±10.0%
TCR of +260 ppm/°C maximum
For Non UL Approval see the IRF Series

RARA ULF200C

Flat type metal clad wire wound resistor
Resistance options from 1Ω up to 2.2kΩ
Power rating of 200W (on a heat sink)
Tolerance options between ±0.5% and ±10.0%
TCR of +260 ppm/°C maximum
For Non UL Approval see the IRF Series

RARA ULF250C

Flat type metal clad wire wound resistor
Resistance options from 1Ω up to 2.79kΩ
Power rating of 250W (on a heat sink)
Tolerance options between ±0.5% and ±10.0%
TCR of +260 ppm/°C maximum
For Non UL Approval see the IRF Series

RARA ULF300C

Flat type metal clad wire wound resistor
Resistance options from 1Ω up to 3.5kΩ
Power rating of 300W (on a heat sink)
Tolerance options between ±0.5% and ±10.0%
TCR of +260 ppm/°C maximum
For Non UL Approval see the IRF Series

RARA ULF400C

Flat type metal clad wire wound resistor
Resistance options from 1Ω up to 3.08kΩ
Power rating of 400W (on a heat sink)
Tolerance options between ±0.5% and ±10.0%
TCR of +260 ppm/°C maximum
For Non UL Approval see the IRF Series

RARA ULF500C

Flat type metal clad wire wound resistor
Resistance options from 1Ω up to 2.46kΩ
Power rating of 500W (on a heat sink)
Tolerance options between ±0.5% and ±10.0%
TCR of +260 ppm/°C maximum
For Non UL Approval see the IRF Series

RARA ULH60

Metal clad wire wound resistor
Option of flying leads (tab terminals are standard)
Inductive or non-inductive design
Insulation resistance of 20MΩ minimum
Temperature range of -55°C up to +200°C
UL approved
Extruded aluminium horizontal housing
Short time overload of 5 x power rating is 5 seconds

RARA ULH80

Metal clad wire wound resistor
Option of flying leads (tab terminals are standard)
Inductive or non-inductive design
Insulation resistance of 20MΩ minimum
Temperature range of -55°C up to +200°C
UL approved
Extruded aluminium horizontal housing
Short time overload of 10 x power rating is 5 seconds

RARA ULH80F

Precision shunt resistor
4-terminal metal-clad design
Resistance values between 1.3333mΩ up to 3.3333mΩ
Rated current of 30A, 40A, 50A or 75A
Tolerance values of ±0.1%, ±0.5% or ±1.0%
Rated voltage 100mV
UL Approved