53
8-6. Mechanical construction
Design, dimensions
Specifications in mm (in)
)5
9.0(
1.
42
)3.
1(
33
)3
7.1(
4
4
Ø
)8
2.0(
7
Ø
Ø5 (0.2)
B
C
A
Fig. 8-1. Model with screw terminals
Pos. A: Spring range L .5 mm (not applicable to US - M4 mounting screws)
Pos. B: Fixing elements for detachable measured value display
Pos. C: Interface for contacting measured value display
Weight
approx. 40 to 50 g (1.4 to 1.8 oz)
Material
All materials used are RoHS-compliant.
Housing: Polycarbonate (PC), complies with UL94 HB (fire prevention characteristics)
Terminals
Screw terminals: Nickel-plated brass and gold-plated contact
Spring terminals: Tin-plated brass, contact spring V2A
Potting: PU, complies with UL94 V0 WEVO PU 403 FP / FL (fire prevention
characteristics)
Terminals
Choice of screw or spring terminals (see “Design, dimensions” diagram) for sensor and
fieldbus wires:
Terminals version
Wire version
Conductor cross-section
Screw terminals (with latches at the
fieldbus terminals for easy connection
of a handheld terminal, e.g. DXR375)
Rigid or flexible
≤ 2,5 mm
2
(14 AWG)
Spring terminals
Stripped length = min. 10 mm (0.39in)
Rigid or flexible
0,2...1,5 mm
2
(24...16 AWG)
Flexible with wire-end ferrules
with.out plastic ferrule
0,25...1,5 mm
2
(24...16 AWG)
Flexible with wire-end ferrules
with plastic ferrule
0,25...0,75 mm
2
(24...18 AWG)
Note: When connecting flexible cables and spring terminals, it is not recommended to use
ferrules.