
16 GOSSEN Mueller & Weigert
Bimetal Movement, 90° Scale
Narrow Bezel per DIN 43718
Front Dimensions 48 x 48 mm 72 x 72 mm 96 x 96 mm
Type BM 48 BM 72 BM 96
Scale Length 34 mm 63 mm 97 mm
Weight (standard model), max. 0.1 kg 0.17 kg 0.25 kg
Power Consumption,
Approx.
secondary transformer terminal: 1 A 1.1 VA 1.6 VA 1.6 VA
secondary transformer terminal: 5 A 1.9 VA 2.5 VA 2.5 VA
Accuracy Class 333
Nominal Line
Voltage
phase-to-neutral (= operating voltage) ≤300 V ≤300 V ≤300 V
3-phase 3-wire systems ≤500 V ≤500 V ≤500 V
3-phase 4-wire systems ≤277/480 V ≤277/480 V ≤277/480 V
Test Voltage 2.2 kV 2.2 kV 2.2 kV
Front Housing-Panel Protection IP 52 IP 52 IP 52
Type BM 96
Square Panel Meters
for Alternating Current
Technical Data
Description
Analog Panel Meter with Bimetal Movement
Reference Conditions
Dimensions
Display
Scale Graduation Medium fine
Pointer Bar indicator with knife-edge
Red slave pointer for display of maximum value
Reset button for slave pointer can be locked
Mechanical Design
Housing Material Polycarbonate, self-extinguishing and drip-proof per UL94V-0
or sheet metal housing for front panel dimensions
72 x 72 mm and 96 x 96 mm as option.
Mounting Fasteners Standard: S type screw clamp
alternative: see next page
Scale Interchangeable scales
➲ Scales may only be replaced under voltage-free conditions!
Replaceable Bezels and glass faceplates
➲ May only be replaced under voltage-free conditions!
Terminals M4 screw terminals with self-lifting terminal clips. Screws
can be turned with cross-head or standard screw drivers.
Terminal Designation “11” and “12”
Contact Protection Includes finger-safe full cover for BM 72 and BM 96,
as well as finger-safe individual cover for BM 48.
Reference Quantities Reference Conditions
Ambient Temperature 23°C ± 2°C
Position of Use control panel vertical ± 1°
Other DIN EN 60051
Front in mm Nominal Dimensions, mm Cutout Dimensions, mm
Installation Depth Including
Terminals (t) mm
Installation Depth Incl.
Cover (f) mm
a
1
x a
2
h
I
1
x I
2
M4 Full Cover Individual Cover
48 x 48 48 x 48 5 mm 45
+0.6
x 45
+0.6
56 − 61
72 x 72 72 x 72 5 mm 68
+0.7
x 68
+0.7
54 62.5 −
96 x 96 96 x 96 5 mm 92
+0.8
x 92
+0.8
54 62.5 −
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