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© 2024 Fluke Corporation
Specifications subject to change without notice.

You can depend on Fluke tools to keep your world up and running.

Fluke® tools perform like champions in the most challenging utility-scale food-and-beverage  environments. You can depend on Fluke tools to keep your world up and running.

Electrical Measurement Window

Fluke PQ400

Electrical Measurement Window

There are various potential risks exposed to personnel at the plant and safety always be a priority when working with electrical measurement onsite. Fluke PQ400 Electrical Measurement Window enables the connection of three phase measurement equipment to energised panels, without the need to open the panel door which increases measurement efficiency.

  • Reduced risk - Permanently installed voltage and current connections can be accessed without opening the panel door

  • Increased efficiency - Quickly connect your logger or analyzer and begin taking measurements faster than ever

  • Easy installation - A standard step drill bit and electro-hydraulic hole punch provide the simple means to quickly mount the window in the panel

General
Maximum voltage between any voltage terminal and earth ground
1000 V
Maximum voltage between any current terminal and earth ground
30 V
Safety
General
IEC 61010-1: pollution degree 2
Measurement
IEC 61010-2-030: CAT IV 600 V / CAT III 1000 V
Dimensions
Outside
148 mm x 187 mm x 23 mm (W x H x D)
(148 mm x 370 mm x 19 mm with cover opened)
Inside
140 mm x 158 mm x Di (W x H x D)
Di = 58 – thickness of panel door in mm
Supported electrical enclosures
Enclosure
UL 50/NEMA environmental type 1 (Type 12 when PQ400 cover is closed)
Panel thickness
Max. 3.5 mm (10 gauge)
Environment
Operating/storage temperature
-25 °C to 60 °C
Humidity
10 % to 90 % in dependency of temperature according to IEC 60721-3-3 Class 3K6 (modified):-25 °C to 35 °C: 10 % to 90 %, 50°C: max. 35 %, 60°C: max. 23 %
Altitude
Operating
2,000 m (up to 4000 m derate to CAT II 1000 V, CAT III 600 V, CAT IV 300 V)
Storage
12,000 m
Ingress protection
Rating
IEC 60529: IP67 with cover closed, IP50 with cover opened and all connectors attached
Vibration
IEC 60068-2-6 , MIL-PRF28800F: Random vibration class 2
Weight
2.1 kg
Voltage
Input
Number of inputs
5 (A/L1, B/L2, C/L3, N, and earth/ground)
Wire gauge
Solid/flexible: 0.25 mm2 to 1.5 mm2 (AWG 24 to AWG 16)
Voltage
Max. 1000 V
Fuse
2 A 1000 V 1.5 A²s, 10 kA IR (A/L1, B/L2, C/L3, N)
Output
Connectors
5x 4 mm safety terminals, 3x red for A/L1, B/L2, C/L3, 1x black for N, 1x green for earth/ground
Load current
Max. 1 A rms
Current
Input/output
Connectors
5x 4-pin circular compatible with Fluke 354x FC, 173x, and 174x power and power quality loggers (these loggers can all be power from the measured voltage up to 500V)v
Electrical Measurement Window

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