The Megger PAT450-UK is a dual-voltage downloading portable appliance tester designed for UK electricians and PAT technicians who need reliable performance for high-volume testing in workshops, hire centres and service environments. Built for speed and accuracy, it performs comprehensive 110 V and 240 V PAT tests, including Flash and RCD checks, helping you stay compliant with UK safety standards.
A FREE bundle (1000 PASS + 200 FAIL labels) is now available with this item. Just select it from the drop-down menu.
Why choose the PAT450-UK for professional testing?
With its 5.7-inch colour LCD, intuitive menu navigation and full QWERTY keypad, the PAT450-UK simplifies asset entry and test control. Designed for efficient on-site use, it stores up to 10,000 results, supports barcode scanners and printers and transfers data via USB for easy certification and record keeping. It’s ideal for contractors handling large-scale appliance safety inspections.
Order today to enjoy free delivery, expert support and our 90-day satisfaction guarantee. Need advice? Our team is here to assist you.
230 V ±10% @ 50/60 Hz / 110 V ±10% + 110 V ±10% @ 50 Hz
Earth Bond / Bond Test (10 A & 25 A)
Open-circuit voltage: 9 V AC ±10% ± 0.1 V (supply: 230 V 50 Hz)
Resistance accuracy: ±5% ±3 digits (0 to 0.49 Ω), ±5% ±5 digits (0.5 to 0.99 Ω)
Resolution: 10 mΩ (0 to 1.99 Ω)
Display range: 0 – 1.99 Ω
Continuity Test (200 mA)
Test voltage: 4.0 V DC –0% / +10%
Resistance accuracy: ±5% ±3 digits (0 to 0.49 Ω), ±5% ±5 digits (0.5 to 0.99 Ω)
Resolution: 10 mΩ (1 to 19.99 Ω)
Display range: 0 – 19.99 Ω
Insulation Test
Test voltages: 250 V and 500 V DC
Resistance accuracy: ±2% ±5 digits (0 to 19.99 MΩ), ±5% ±10 digits (20 to 99.99 MΩ)
Resolution: 0.01 MΩ
Display range: 0 – 99.99 MΩ
Substitute / Leakage Current Test
Test voltage: 40 V AC ±10% (nominal mains frequency)
Current accuracy: ±5% ±5 digits
Resolution: 0.01 mA
Display range: 0 – 19.99 mA
Flash (Hi‑pot) Test
Voltage: 1.5 kV AC (Class I), 3.0 kV AC (Class II)
Flash test current: < 3.5 mA (short circuit @ 253 V primary supply)
Breakdown current accuracy: ±5% ±5 digits
Resolution: 0.01 mA
Display range: 0 – 3.0 mA
Portable RCD Test
Voltage: nominal mains supply
Test current accuracy: –8% to –2% (½×I), +2% to +8% (1×I, 5×I)
Trip time accuracy: ±1% ±5 digits
Trip time resolution: 0.1 ms
Display range: 0 – 1999 ms (½×I), 0 – 300 ms (1×I), 0 – 40 ms (5×I)
Fuse Test
Test voltage: 3.3 V — audible beep if fuse is OK
Other Tests / Features
Extension‑lead test (bond, insulation, polarity), Touch current test, Differential leakage test, Operational (VA) test
Dimensions
~ 210 mm (H) × 280 mm (W) × 390 mm (L) (alternative spec: 180 × 255 × 320 mm) Weight: ~ 5.0 kg
Environmental / Safety
Operating temperature: –10 to +50 °C
Storage temperature: –20 to +60 °C
Humidity: 90% RH @ –10 to 30 °C, 75% RH @ +30 to 50 °C
Maximum altitude: 2000 m
Ingress protection: IP40
Safety / EMC compliance: IEC 61010‑1 (CAT II 300 V), IEC 61326‑1 / IEC 61326‑2‑2
Why choose Instrotech for your electrical test equipment?
With over 40 years’ experience supporting UK electricians, technicians and engineers, Instrotech is your trusted partner for quality tools and expert service. When you purchase from us, you benefit from:
Free UK shipping on all orders
Access to our knowledgeable technical support team
Available calibration services to maintain safety compliance
A 90-day money-back guarantee for complete peace of mind
We’re committed to helping you work safely and efficiently with industry-leading products and ongoing support.
