AC voltage detector HST-V

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Overview
This category groups high/medium voltage detectors of the universal joint type for AC systems. Models cover detection ranges from approximately 1 kV up to 550 kV and include non-contact detectors as well as audio/LED signaling models. Common design elements are FRP insulating sticks for reduced weight, universal-joint compatibility for shared control rods, and multi-stage light/sound indication on selected units.

Products included

• HWB-550A — Non-Contact Voltage Detector: AC 11 kV–550 kV. Features FRP insulating stick, light weight, easy operability, universal joint type.
• HST-35V — Audio Signaling and Light Emitting Voltage Detector: AC 6–35 kV. Electronic buzzer and high-luminance LED indication; compact and easy to handle.
• HST-138V — Audio Signaling and Light Emitting Voltage Detector: AC 66–138 kV. Audio buzzer and LED indication; compact and easy to handle.
• HST-550V — Audio Signaling and Light Emitting Voltage Detector: AC 210–550 kV. Audio and LED indication; compact and easy to handle.
• HWB series — Non-Contact Voltage Detectors (HWB-35, HWB-110, HWB-138, HWB-550): Various AC ranges (6–35 kV, 35–110 kV, 66–138 kV, 210–550 kV). FRP insulating stick; universal joint type.
• HWA series — High Voltage Detectors (HWA-33X, HWA-33P): HWA-33X AC 11–33 kV; HWA-33P AC 1–35 kV. Notes: HWA-33X references IEC61243-1. Interchangeable tip fittings (hook, straight, Y-shaped, etc.). Multi-function display with 3-step light/sound approach indication and a red lamp at the change point; HWA-33P offers 4-stage light/sound indication depending on measured voltage. Universal joint provided for connection to shared control rods.

Additional information
Specification images and product catalogues/flyers are available per model to detail ratings and technical data; some models include downloadable flyers and specification images for rating details.

Characteristics / Technical specifications

• Insulating stick material: FRP (fiber-reinforced plastic) for low weight and improved operability.
• Joint type: Universal joint compatible with shared control rods for connection to control rods.
• Indication methods: Electronic buzzer and high-luminance LED; selected models implement 3-step or 4-stage light and sound functions, with a red lamp indication at the changing point to clearly show detector results.
• Standards: IEC61243-1 referenced for HWA-33X.
• Representative voltage coverage: HWA-33P 1 kV–35 kV; HST-35V 6–35 kV; HST-138V 66–138 kV; HST-550V 210–550 kV; HWB-35 6–35 kV; HWB-110 35–110 kV; HWB-138 66–138 kV; HWB-550 210–550 kV; HWB-550A 11–550 kV.
• Accessories / tips: Changeable tip fittings available where specified (hook, straight, Y-shaped, etc.).