Voltage Detectors (LV MV HV 11kV 33kV)

Voltage Detectors (LV MV HV 11kV 33kV)
CATU voltage detectors are suitable for use on low, medium and high voltage applications including distribution, overhead line and transmission systems.
The range of voltage detectors from CATU which include IEC rated, offer reliable and precise detection for maximum electrical safety. Detection is provided by double notification – audible alarm and flashing visible light.
Detectors are used for varying voltages and applications and are rated for use on 3.3kV, 6.6kV, 33kV and above when determining if an overhead line or similar installation is carrying power and to what level.

LV, MV & HV Voltage Detectors
Low Voltage Detectors
CATU LV Voltage Detectors
The Detex New Generation NG 917-EX, NG 917/2-EX and MS-920-EX are designed based on IEC 61243-3 rates, in response to the requirements of the EN 50110-1 European standard.
The MS-917-VE NVT voltage detector is specially designed to check for no voltage and direct current voltages on electric or hybrid vehicles.
CATU Part Ref | Voltage 12-690 V AC 12-750 V DC |
50/60 Hz +/- 3% | Continuity | Protection IP65 IK06 | Class II | Category IV 600 V | Operations -15 to +45°C (class N) | 2 AAA batteries 1.5 V | Rotary Field | Suitable for standard 2P+T.19 mm | Lighting unit. | Weight |
MS-917-EX * | ♦ | ♦ | 200 | ♦ | ♦ | ♦ | ♦ | ♦ | – | ♦ | – | 210g |
MS-917/2-EX * | ♦ | ♦ | 100 | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | 210g |
CATU Part Ref | Voltage 12-690 V AC 12-800 DC |
50/60 Hz | Continuity < 100 Ω | Protection IP65 IK06 | Class II | Category IV 600 V | Operations -15 to +55°C (class N) | 2 AAA batteries 1.5 V | Rotary Field | Suitable for standard 2P+T.19 mm | Lighting unit. | Weight |
MS-920 * | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | ♦ | 210g |
CATU Part Ref | Voltage | 50/60 Hz +/- 3% | Continuity | Protection IP65 IK06 | Class II | Category IV 600 V | Operations -15 to +45°C (class N) | 2 AAA batteries 1.5 V | Rotary Field | Suitable for standard 2P+T.19 mm | Lighting unit. | Weight |
MS-917-VE | 12-750 V DC | ♦ | – | ♦ | ♦ | ♦ | ♦ | ♦ | – | ♦ | ♦ | 210g |
*Supplied without accessories.

CATU Low Voltage (LV) Detectors (IEC 61243 EN 50110-1)
Medium Voltage Detectors
CATU IEC Voltage Detectors (IEC 61243)
CATU IEC voltage detectors are compact and light providing reliable voltage detection from 3.3kV to 33kV – compliant with IEC 61243-1 a standard applicable to portable voltage detectors.
IEC 61243-1 voltage detectors are compact (59 Dia x 270mm) and light (420g) and suitable for indoor and outdoor use, CATU IEC voltage detectors are designed for use with medium and high voltage electrical cables and equipment.
CATU Part Ref | Power | Operating Voltage (KV) | Battery Type | Weight |
CC-765-55/20 | 50/60 Hz | 5.5 – 20 kV | 9 V | 350 g |
CC-765-3/10 | 50/60 Hz | 3 – 10 kV | 9 V | 350 g |
CC-765-10/36 | 50/60 Hz | 10 – 36 kV | 9 V | 350 g |
CC-765-10/30 | 50/60 Hz | 10 – 30 kV | 9 V | 350 g |
IEC Voltage Detector
with antenna for indoor and outdoor uses
CATU Part Ref | Operating Voltage | Total Length | Weight |
CC-965-10/30 | 10 – 30 kV | Length:1.55 m Diameter: 59 mm |
850 g |
CC-965-5/15 | 5 – 15 kV | Length: 1.45 m Diameter: 59 mm |
820 g |
voltage detector for indoor and outdoor use
CATU Part Ref | Power | Operating Voltage | Battery Type | Weight |
CC-365-3/10 | 50 Hz | 3 – 10 kV | 1.5 V | 500 g |
CC-365-10/30 | 50 Hz | 10 – 30 kV | 1.5 V | 500 g |
(*)Specify type of mounting when ordering: C or K.Packaging: unit supplied complete in a case with batteries and contact electrodes (straight and V-shaped). Total weight: 1100 g. Total size: 340 x 275 x 83 mm.

CATU IEC Medium Voltage (MV) Detectors For Indoor or Outdoor Use (IEC 61243)
Voltage detector with leds for indoor use
CATU Part Ref | Operating Voltage | Folded Length | Total Length | Weight |
CL-4-10/30-M * | 10 – 30 kV | – | 1.35 m | 1000 g |
CL-4-10/30-2 ** | 10 – 30 kV | 0.85 m | 1.26 m | 950 g |
CL-2-5/36-2 | 5 – 36 kV | 0.33 m | 0.9 m | 400 g |
CL-2-10/30-2 | 10 – 30 kV | 0.33 m | 0.9 m | 400 g |
*Delivered in vinyl sheath with wall brackets CI-06-D.**Delivered in canvas, waterproofed with ramp.
High Voltage Detectors
CATU IEC Voltage Detectors (IEC 61243)
CATU high voltage detectors (AC) provide reliable voltage detection for HV power cables, overhead lines and switchgear applications, 66-765kV according to IEC 61243-1.
All CATU HV detectors are CE Marked and are suitable for detecting voltages both indoor and outdoor.
CATU Part Ref | Operating Voltage | Contact Electrode | Type LR 61 | Temperature | Weight |
CC-765-44/132 | 44 – 132 kV | Ø120mm | 9V | -25/+55°C | 350 g |
CC-245-63/90 -(*) | 63 – 90kV | Ø120mm | 9V | -25/+55°C | 650 g |
CC-245-150-(*) | 150 kV | Ø120mm | 9V | -25/+55°C | 650 g |
CC-245-225/420-(*) | 225 – 420 kV | Ø120mm | 9V | -25/+55°C | 650 g |
CC-245-60/150-K or-C | 60 – 150 kV | Ø120mm | 9V | -25/+55°C | 650 g |
CC-245-63/150-(*) | 63 – 150 kV | Ø120mm | 9V | -25/+55°C | 650 g |
CC-245-90/225-(*) | 90 – 225 kV | Ø120mm | 9V | -25/+55°C | 650 g |
CC-245-150/420-K or-C | 150 – 420 kV | Ø200mm | 9V | -25/+55°C | 650 g |
CC-245-225/550-K or-C | 225 – 550 kV | Ø200mm | 9V | -25/+55°C | 650 g |
CC-245-315/765-1-K or-C | 315 – 765 kV | Ø200mm | 9V | -25/+55°C | 650 g |
Delivered in synthetic case with handle, battery and electrodes 370 x 165 x 145mm. (*)Please specify type of mounting when ordering: C or K.

CATU IEC High Voltage (HV) Detectors (IEC 61243)
HOW TO SELECT THE CORRECT VOLTAGE DETECTor
Key factors to consider when selecting a voltage detector:
- Low or high voltage – is the detector required to test the power of a low or high voltage application.
- Are there any other detection instruments or electrical protection products required.
- What operating voltage does the product need to detect – voltage detectors are separated by their different operating limits.
Typically, voltage detectors are used in conjunction with insulating gloves or an electrical hot stick. This is to ensure the operator is fully protected against any live electrical power that is still present or if the cables are live.

CATU offer a range of Arc Flash Clothing For High Voltage Utility Cable Jointers & Lloyds NERS LV-HV Electrical Contractors

CATU provide a complete range of Electrical Safety Equipment including insulating ladders and insulating matting for medium and high voltage electrical protection.