Martindale BZ201 Industrial Socket Tester
Electrical maintenance teams often need a quick way to check industrial socket wiring before using equipment. The Martindale BZ201 Industrial Socket Tester provides a fast method to identify wiring faults and unsafe conditions. It allows engineers to confirm that a socket is wired correctly before connecting plant or tools.
Designed for industrial environments, the Martindale BZ201 checks single phase sockets fitted with 230V supplies. Clear LED indicators show wiring status immediately, while a built in buzzer confirms correct connections. Because results appear instantly, technicians can quickly assess installations during inspections or servicing.
Clear Fault Identification
Three bright LEDs show different wiring conditions using a simple pattern system. This fail safe design helps users identify up to 28 common wiring faults through the combination of illuminated indicators. In addition, the Martindale BZ201 measures mains voltage levels and highlights both high and low voltage conditions.
Designed for Practical Site Use
A strong ABS moulded housing protects the Martindale BZ201 during daily work on industrial sites. The tester is compact and maintenance free, which makes it easy to keep in a tool bag. It can also act as a basic fuse finder because the buzzer stops sounding when the correct fuse is removed.
Industrial electricians often work in tight spaces where visual confirmation is difficult. Therefore, the audible sounder helps confirm correct wiring even when LEDs are not easy to see. While it does not replace full installation testing, the Martindale BZ201 offers a reliable first line safety check.
Key Features
- Quick testing of single phase industrial socket wiring
- Compatible with 16A and 32A industrial sockets
- Detects up to 28 possible wiring fault conditions
- Three bright LED indicators show wiring status
- Clear LED pattern system for fault identification
- Audible buzzer confirms correct wiring connection
- Integrated high and low voltage indication
- Rugged ABS housing supports site use
- Maintenance free design for daily operation
- Can operate as a simple fuse finder tool
Technical Specifications
| Manufacturer | Martindale Electric |
| Product name | BZ201 Industrial Socket Tester |
| Available models | BZ201-16 and BZ201-32 |
| Nominal operating voltage | 230V AC rms |
| Operating frequency | 50Hz |
| Power consumption | Less than 2.5W |
| Power supply | Powered directly from socket under test |
| Standby function | Automatic standby after approximately 10 minutes |
| Low voltage indication | Below 195V ±5% |
| High voltage indication | Above 270V ±5% |
| Earth neutral voltage high indication | Above 30V nominal |
| Plug type | 16A or 32A 3 pin plug to BS EN IEC 60309-1 |
| Dimensions | 91 mm (L) × 80 mm (W) × 38 mm (D) |
| Weight | 195 g |
| Operating environment | Indoor and outdoor use in dry conditions |
| Operating temperature | -10°C to 40°C at maximum 85% RH |
| Maximum altitude | Up to 2000 m |
| Overvoltage category | CAT III 300V |
| Pollution degree | 2 |
| Safety compliance | BS EN 61010-1 CAT III 300V Class II double insulation |
| EMC compliance | BS EN 61326-1 and BS EN 61326-2-2 |
Comparison Table
| Feature | BZ201-16 | BZ201-32 |
| Nominal voltage | 230V AC rms | 230V AC rms |
| Frequency | 50Hz | 50Hz |
| Plug type | 16A 3 pin plug to BS EN IEC 60309-1 | 32A 3 pin plug to BS EN IEC 60309-1 |
| Power consumption | Less than 2.5W | Less than 2.5W |
| Dimensions | 91 × 80 × 38 mm | 91 × 80 × 38 mm |
| Weight | 195 g | 195 g |
| Safety rating | CAT III 300V | CAT III 300V |
What’s Included
- Martindale BZ201 Industrial Socket Tester
- Integrated industrial plug for socket testing






