ES-8054 Rev.12
MD7RB
Lightning Surge Protectors for
Electronics Equipment M-RESTER
LIGHTNING SURGE PROTECTOR FOR RTD USE
(ultra-slim)
Functions & Features
• High discharge current capacity 20 kA (8 / 20 μs), 1 kA (10 / 350 μs)
• Ultra-thin 7-mm-wide module can be mounted
in high density
• Excellent protection employing multi-stage SPD circuits
• DIN rail mounting and grounding
• Shield terminal provided
• Does not affect instrumentation signal when combined with a 3-wire RTD, thanks to the internal high accuracy series resistors
MODEL: MD7RB–[1][2][3]
ORDERING INFORMATION
• Code number: MD7RB-[1][2][3]
Specify a code from below for each of [1] through [3].
(e.g. MD7RB-FF0/Q)
For the safety approval code 2, specify the product’s destination country using Ordering Information Sheet (No. ESU-8057).
• Specify the specification for option code /Q
(e.g. /C01)
[1] SHIELD TERMINAL (line / earth)
FF
: Floating / Floating
FG
: Floating / Grounding
GF
: Grounding / Floating
GG
: Grounding / Grounding
[2] SAFETY APPROVAL
0
: None
2
: ATEX intrinsic safety
[3] OPTIONS
blank
: none
/Q
: With options (specify the specification)
(ATEX intrinsic safety not available)
SPECIFICATIONS OF OPTION: Q
COATING (For the detail, refer to our web site.)
/C01
: Silicone coating
/C02
: Polyurethane coating
GENERAL SPECIFICATIONS
Construction
: Slim-sized front terminal structure
Degree of protection
: IP20
Connection
: Euro terminal block (torque 0.3 N·m)
Applicable wire size
: 0.2 – 2.5 mm
2
, stripped length 8 mm
Grounding
: DIN Rail
Housing material
: Flame-resistant resin (black)
INSTALLATION
Operating temperature
: -25 to +85°C (-13 to +185°F)
(See Safety Parameters for use in a hazardous location.)
Operating humidity
: 30 to 90 %RH (non-condensing)
Mounting
: DIN Rail (TH35-7.5, 1-mm-thick)
Oxide film on the surface of an aluminium DIN rail may lower the electric conductivity between this module and the ground. Use a steel or copper rail.
Weight
: 70 g (2.5 oz)
PERFORMANCE
STANDARDS & APPROVALS
EU conformity
:
ATEX Directive
Ex ia EN 60079-11
EMC Directive
EMI EN 61000-6-4
EMS EN 61000-6-2
RoHS Directive
Safety approval
:
SAFETY PARAMETERS
DESCRIPTIONS
CONNECTION EXAMPLES
EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]
SCHEMATIC CIRCUITRY