CA90/B MTL SURGE TECHNOLOGIES, CA90/B Datasheet - Page 3

• Manufacturer Part Number: CA90/B
• Description: AERIAL PROTECTOR
• Manufacturer: MTL SURGE TECHNOLOGIES
• Series: CAr

Specifications of CA90/B

• Suppressor Type: Data Line
• No. Of Outlets: 1
• Outlet Type: BNC
• Voltage Rating: 90V
• Peak Surge Current: 10kA
• Connector Type: BNC
• Clamping Voltage: 90V
• Clamping Voltage Vc Max: 90V
• External Depth: 60mm
• Svhc: No SVHC (15-Dec-2010)

Figure 5 shows a typical remote telemetry unit
(RTU). Signals are passed to the transmitter via
data cabling, shown here as a 4-20mA loop. AC
power for the transmitter enters the bottom of the
RTU shed.
For optimum protection it is essential to employ
surge protection devices where cabling enters the
RTU building. The antenna feed connects directly
to a CA Series SPD and then into the tranmsitter
using a short cable link. The CA is mounted onto
an MK2 mounting kit and an earth connection us-
ing at least 2.5mm
earth stud to the RTU electrical earth, typically
the enclosure earth stud. This cable length should
be kept to a minimum to reduce the voltage drop
across it during surge conditions.
Data lines should be protected using an SD series
surge protector. These mount onto DIN rail and
provide an automatic, high integrity earth connec-
tion via the DIN rail. Mains powered equipment can
be protected using the MA Range of AC power
SPDs.
CA Series Mounting Kits and Enclosures
The CA series has a full range of mounting kits and enclosures to simplify installation. Telematic offers a choice of enclosures to suit every application. Panel
mounting can be achieved using either the MC range of mounting brackets or, for a larger number of units, the MK range of busbar mounting kits.
Mounting options
Installation
MC1
MC2
MK2
MK5
MK10 mounting kit for up to 10 CA devices
mounting bracket for 1 CA device
mounting bracket for up to 2 CA devices
mounting kit for up to 2 CA devices
mounting kit for up to 5 CA devices
2
MK mount
cable is taken from the MK2
Figure 5 Protection of a remote telemetry unit (RTU)
MC mount
Weatherproof enclosures
WP3
WP5
WP12
Polycarbonate to IP65, holds 3 CA devices
Polycarbonate to IP65, holds 5 CA devices
Polycarbonate to IP65, holds 12 CA devices
WP enclosure