Welwyn / TT Electronics WHS-UL Flameproof Wirewound Resistors

Welwyn / TT Electronics WHS-UL Flameproof Wirewound Resistors combine high surge tolerance with failsafe line voltage fusing. Aimed at inrush control applications, Welwyn WHS-UL Flameproof Wirewound Resistors are available in three body sizes rated at 2W, 3W, and 5W. The series offers a UL94-V0 flameproof coating and a 10Ω to 100Ω resistance range.

Features

Enhanced surge and pulse energy capacity
UL1412 recognized fusible resistor (UL file E234469)
Failsafe fusing at 120V_RMS/240V_RMS

UL94-V0 flameproof coating
Leadform options, including surface-mountable

Applications

Uninterruptible power supplies
Large power supplies
Energy meters

Specifications

2W to 5W power rating at +25°C
10W to 25W 5s overload rating at +25°C
10Ω to 100Ω resistance

±200ppm/°C temperature coefficient of resistance
-55°C to +155°C operating temperature range

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