Roxburgh Surge Protection Devices (SPDs)

This range of Surge protectors reduce the transient overvoltages inside a facility or equipment, protecting against the indirect effects of lightning, and transients which originated within the facility.

All cables leaving a building can also provide a route back into the building, therefore, protection must be installed on: Mains Power Supplies (including UPS Class C and Class B); Data Communications and Local Area Network Cables; Signal, Control, Instrumentation and Alarm Lines; Telephone and Telemetry Lines.

Class B - Low Voltage Power System Protection

The Class B series of over-voltage surge protective devices has been developed to protect against partial direct and indirect lightning discharges and is intended to provide protection in zones 0A – 1, per IEC 62305.

Category IEC / EN / VDE: Class I, II / Type 1, 2 / B + C. This range incorporates remote signalling contacts for central monitoring of SPD health.

DVSB275652TNS for TNS single phase networks with separate N and PE conductors.

DVSB400654TNS (65kA) for TNS three phase networks with separate N and PE conductors.

DVSB4001004TNS (100kA) for TNS three phase networks with separate N and PE conductors.

DVSB4001004TT for TT three phase networks, where N to PE galvanic isolation is required.

Product Variants

Class C - Low Voltage Power Supply Protection

The Class C series of over-voltage surge protective devices has been developed to protect against the effects of indirect lightning discharges and induced voltages and is intended to provide protection in zones 1 2 per IEC 62305.

Category IEC / EN / VDE: Class II / Type 2 / C. Available with and without remote signalling contacts.

DVSC27545 consists of a high performance varistor block with thermal disconnection device. The plug-in module/base design facilitates replacement of a failed module in situ without the need to remove system wiring.

DVSC275452TNS series combines two 45kA varistor modules to provide protection for single phase TNS networks.

DVSC275452TT series combines a 45kA varistor and gas discharge tube to provide protection for TT single phase networks, where N to PE galvanic isolation is required.

DVSC400453TNC series combines three 45kA varistor modules, to provide protection for TNC three phase networks with a combined PEN conductor.

DVSC400454TNS series combines four 45kA varistor modules, to provide protection for TNS three phase networks with separate PE and N conductors.

DVSC400454TT series combines three 45kA varistor modules and a gas discharge tube, to provide protection for TT three phase networks, where N to PE galvanic isolation is required.

Product Variants

Class C - DC Power Protection

The Class C – DC power series – has been designed to meet the unique requirements of protection of DC power systems found in telepower and railway applications.

Category IEC / EN / VDE: Class II / Type 2 / C. Available with and without remote signalling contacts.

DVSC 24/48 provides both common and differential mode protection using high nominal discharge rating for extended operating life under DC conditions.

DVS – A range of DIN rail mounted voltage suppressors with 24V, 48V, 110V and 240V nominal operating voltages.

Product Variants

Voltage Suppression unit (External) - 2W, 3W and 4W VSU

The VSU range of voltage suppression units.

The VSU range of Voltage Suppression Units are available in single, three and three phase + neutral.

All products are RoHS compliant.

Product Variants

Roxburgh EMC brochure