(I) Surge Protective Devices

CITEL DS AC power Surge Protective Devices (SPD) are designed to meet all surge protection needs for low voltage installations. Designed for mounting on DIN rails, these protectors are easy to install in standardized panels and cabinets and are equipped with thermal disconnection devices and indicators allowing total operating safety. DS surge protectors are available with several protection diagrams to comply with different installation needs and standard requirements. CITEL AC power surge protectors offer three levels of surge protection corresponding to different IEC or EN classes.

DS40-230 was submited to PSB Corporation (Singapore) for testing under the requirement standards SSCP33 and BS6651. The result was within the permissable limits which was specified by Citel 2cp.

Below are some of the job reference that Citel Surge Arrestors were being installed
* Orchid Country Club
* Singapore Island Country Club
* Tanah Merah Country Club
* Paya Lebar Power Station
* Changi Power Station

Citel Surge Arrestors were also installed in some of the Public & Residential Swimming Pool's control panels.





Type 1 AC power Surge Protector

The DS150E is a Heavy Duty Type 1 AC Surge Protector Device (SPD) designed to be connected at the entrance of the electrical installation. This SPD provides an efficient protection against direct and indirect effects and is particularly useful in a high lightning density area where the risk of heavy surge current or even direct strike is high (i.e. : buildings equipped with lightning rods).


Type 2 AC power Surge Protector

DS40 Type 2 AC Surge Protectors are used mainly for primary protection of single and 3-Phase networks at the main electrical panel. They provide common-mode (between L and PE) or common and differential mode (L/PE and L/N) when associated with DS40G

1-phase Type 2 AC power Surge Protector

The DS240 Type 2 surge protectors are compact devices designed to protect single phase networks at the main switchboard. They provide a common mode protection.

AC Surge Protection Panel
M Series

AC Surge protection panels, single or 3-Phase, available in several discharge capabilities (Imax = 80, 100, 160 and 200 kA) and built in NEMA 4 enclosures. Surge protection diagram is based on high energy MOVs and filtering capacitors in order to provide very high discharge currents, low residual voltages and EMI/RFI filtering operation. In compliance with UL1449 standard, the operation safety, in case of end of life, is given by internal disconnectors linked to status indicators and a remote signalling circuit.

Type 1 Surge Protector for Photovoltaic DS60PV

DS60PV are Type 1 Heavy Duty Surge Protectors are designed to protect against lightning surge voltages in photovoltaic power supply networks. These units must be installed in parallel on the DC networks to be protected and provide common mode protection. These protectors are recommended when a direct lightning strike is possible on the installation.

The DS60PV is available for the main operating voltages in photovoltaic: 500 and 1000 Vdc.


Type 2 Surge Protector for Photovoltaic DS50PV

DS50PV are Type 2 Surge Protectors are designed to protect against lightning surge voltages in photovoltaic power supply networks. These units must be installed in parallel on the DC networks to be protected and provide common and differential modes protection. The DS50PV is available for the main operating voltages in photovoltaic : 500, 800 and 1000 Vdc.


(II) Radio Wave Protection

P8AX series

The P8AX series is based on gas discharge tube (GDT) and designed for RF line surge protection. Available for different power and with coaxial connectors (N, BNC, TNC, UHF, SMA, 7/16, 7/8 cable), P8AX units could be provide in feedthrough mounting version and with various impedance (50 or 75 ohms).





PRC series

PRC protectors are based on «Quarter-Wave» technology and are available in more than 30 versions : various connectors (7/16, N, TNC, 7/8 cable, BNC) and bandwidth (from 450 MHz to 6 GHz). These devices provide a very low residual voltage and are maintenance free.


CXP and CXP-DCB series

CXP protectors are based on GDT to provide high discharge current capability without destruction. Its particular mounting allows good adaptation to radio and TV system. Typical applications include radio terminals and TV sets (antenna, cable or satellite) CXP-DCB version is built-in with an extra «DC block» stage in order to reduce low frequency disturbances (DC and lightning voltages) and decrease significantly the residual voltage.