Bosch SL 3 Phase Tester
The Bosch Phase Tester SL3 provides a reliable method for detecting live AC voltage in residential and commercial electrical systems. This tool operates within the standard 200V to 250V range. It functions as a primary safety check for electricians, maintenance crews, and site supervisors before beginning work on any terminal or socket.
Built for the Job
Electrical contractors require a durable indicator for rapid circuit identification. This single-pole device identifies live conductors in power outlets, light fittings, and distribution boards. The 3.0mm slotted tip matches common terminal block screws, allowing the user to check for power while making adjustments. Its compact size fits easily into a breast pocket or tool belt pouch for immediate access. The transparent handle houses a high-sensitivity neon bulb that illuminates clearly when contact is made with a live phase and the user provides a ground path via the metal contact plate.
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Testing for live current in standard 230V wall sockets and switches.
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Identifying phase conductors in terminal blocks and consumer units.
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Verifying power supply to industrial machinery and HVAC control panels.
Product Highlights
- Safety Compliance
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The unit meets DIN VDE 0680-6 safety standards for single-pole voltage testers used in low-voltage ranges.
- Precision Slotted Tip
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- 3.0mm width for compatibility with small terminal screws
- Hardened steel construction prevents tip deformation under torque
- 60mm blade length reaches recessed contacts in deep sockets
- Integrated Pocket Clip
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A heavy-duty spring steel clip secures the device to workwear, preventing loss during movement on site.
Technical Specifications
| Specification | Detail |
|---|---|
| Voltage Range | 200V – 250V AC |
| Tip Type | Slotted (SL) |
| Tip Width | 3.0 mm |
| Standard | DIN VDE 0680-6 |
What’s Included
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1 x Bosch SL 3 Single-Pole Phase Tester
On-Site & Workshop Notes
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Check the indicator on a known live circuit before testing the target terminal to confirm the neon lamp is functional.
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Maintain direct skin contact with the metal plate at the rear of the handle to ensure a proper path for the indicator bulb.
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Keep the insulation clean and dry to prevent surface tracking and ensure accurate readings in dusty environments.
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The glow intensity of this fitting depends on the brightness of the surrounding environment; shade the handle in direct sunlight.
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