Megger LTW425-EU-BS Loop Impendence & RCD Combined Tester, Loop Impedance Test Type 2 Wire 440V, RCD Test Type AC, RCD
- RS Stock No.:
- 198-441
- Mfr. Part No.:
- LTW425-EU-BS
- Brand:
- Megger
Subtotal (1 unit)*
£795.00
(exc. VAT)
£954.00
(inc. VAT)
FREE delivery for orders over £50.00
In Stock
- Plus 3 unit(s) shipping from 09 February 2026
- Plus 4 unit(s) shipping from 12 February 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 1 + | £795.00 |
*price indicative
- RS Stock No.:
- 198-441
- Mfr. Part No.:
- LTW425-EU-BS
- Brand:
- Megger
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | Megger | |
| Loop Impedance Test Type | 2 Wire | |
| Product Type | Loop Impendence & RCD Combined Tester | |
| Test Equipment Type | Combined Loop and RCD Tester | |
| Maximum Voltage Measurement | 440V | |
| RCD Test Type | AC | |
| RCD Test Current | 4A | |
| Non-Trip Loop Test | Yes | |
| Display Type | LCD | |
| Loop Test Accuracy | ±10 % | |
| Minimum Operating Temperature | -10°C | |
| Battery Type | AA | |
| Power Source | Battery | |
| Maximum Operating Temperature | 50°C | |
| Length | 203mm | |
| Height | 78mm | |
| Standards/Approvals | IEC 61326-1 | |
| Weight | 1kg | |
| Width | 148 mm | |
| Safety Category Voltage | 300V | |
| Safety Category Level | CAT IV | |
| Select all | ||
|---|---|---|
Brand Megger | ||
Loop Impedance Test Type 2 Wire | ||
Product Type Loop Impendence & RCD Combined Tester | ||
Test Equipment Type Combined Loop and RCD Tester | ||
Maximum Voltage Measurement 440V | ||
RCD Test Type AC | ||
RCD Test Current 4A | ||
Non-Trip Loop Test Yes | ||
Display Type LCD | ||
Loop Test Accuracy ±10 % | ||
Minimum Operating Temperature -10°C | ||
Battery Type AA | ||
Power Source Battery | ||
Maximum Operating Temperature 50°C | ||
Length 203mm | ||
Height 78mm | ||
Standards/Approvals IEC 61326-1 | ||
Weight 1kg | ||
Width 148 mm | ||
Safety Category Voltage 300V | ||
Safety Category Level CAT IV | ||
RoHS Status: Exempt
- COO (Country of Origin):
- GB
Megger Loop Impedance and RCD Combined Tester, ±2% ±1V Voltage Measurement Accuracy, Backlit Display - LTW300 Series - LTW425-EU-BS
Examine your circuit protection devices for efficiency with this loop impedance and RCD combined tester from Megger. It checks your loop systems, measuring the resistance of electrical loads and safety components like fuses and breakers to find high-resistance connections. The unit also assesses the trip time and sensitivity of your RCD to ensure it reacts quickly to leakage faults. Thanks to non-trip testing, you can monitor your live network without setting off ≥30mA RCDs, which prevents downtime. A backlit display means you won't miss a thing, even when you're working in dark spots.
Features & Benefits
• Auto-start function improves safety by kicking off the test immediately after you connect the leads
• Wide operating voltage range between 50 and 440V AC for versatile use
• Automatic noise detection and test extension to ensure accurate results
• Built-in front cover for impact protection in harsh environments
Applications
• Audiovisual installations
• Oil and gas plants
• Marine engineering
How much does this tester weigh?
This unit weighs just 1kg excluding the test leads, so it's easy to transport when going about your work.
Related links
- Megger LTW425-EU-BS Loop Impedance & RCD Combined Tester RCD Test Type AC
- Megger LTW325-EU-BS Loop Impedance & RCD Combined Tester RCD Test Type AC
- Megger LRCD220-EN-BS Loop Impedance & RCD Combined Tester RCD Test Type AC
- Megger LTW315-EU-BS Loop Impendance Tester 3 Wire 440V
- Kewtech Corporation FC2000 Loop Impedance & RCD Combined Tester RCD Test Type
- Megger LRCD220-FR Loop Impedance & RCD Combined Tester RCD Test Type AC
- Megger RCDT320-EN-BS RCD Tester RCD Test Type DC, RCD Test Current 1000mA CAT
- Megger RCDT310-EN-BS RCD Tester RCD Test Type AC Selective RCD

