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Dyne Industries Pty Ltd
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Dyne Industries
41 Barry St
Bayswater
Vic 3153 AU

Tel:  +61.397207233
Fax: +61.397207551

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Transformers, Power Transformers, Toroids, Current Transformer

Surge Diverters

E40/280 & E40/280/NONC
  • Designed for DIN rail mount
  • Failure indicator
  • Dry contacts for remote sensing
  • Complies with AS 1768 & IEC 1312-3
  • Part No. E40/280 - Basic model
  • Part No. E40/280/NONC - Remote sense contacts
 

The Electromark surge diverter is designed for primary mains protection. Installed just after the main switch and before any earth leakage unit, it is connected from line(s) to earth and neutral to earth; checking that earth is well grounded. These units are designed to dissipate extremely severe lightening-induced transients of up to 40,000 Amps, and divert them to ground.

Surge diverters are installed in parallel, preferably after the main switch and before any earth leakage units. They are connected from one phase to a solid ground at the power inlet, thus protecting any equipment down stream. Surge Diverters soak up any spikes that come in on the 240Vac line, either Lightening induced or Electrically induced, eg "spot welders" or "motor starters".

There are 2 models available, both constructed from electrical grade plastic with a case that is designed to be DIN rail mounted, both with MOV modules inside for circuit protection and a fused mechanical disconnect. In the disconnect condition a flag colour change appears at the "indicator window" and the exhausted unit is disconnected from the circuit. At this stage the unit should be replaced, as it offers no protection.

The basic model offers an "indicator window" showing unit status, "OK" or "REPLACE" and the unit automatically disconnects on "REPLACE" condition.

The remote-sensing model offers an "indicator window" showing unit status, "OK" or "REPLACE" and the unit automatically disconnects on "REPLACE" condition. In addition there are a set of dry contacts on this unit, used for remote sensing, They can indicate either, healthy or replace depending on requirements. The contacts give N/O or N/C options and can be used to check unit status, either by PLC alarm or indicator lights if a change occurs in the condition of the surge diverter. Max. Current on the contacts is 1A/240Vac or 500mA at DC.

Both units are rated at 40kA but other sizes are also available. IEEE considers lightening strikes induce a maximum of 10kA inside buildings. 40kA metal oxide protection will offer reliable protection with extra margin.


Technical Specifications - General
Static conditions @ 25°C Mains 230/240 Vac
Max continuous voltage (per phase) 280 V rms (350 Vdc)
Typical earth leakage current (per phase) <1mA
Operating temperature -10°C to +55°C
Typical capacitance 2700pF
 
Transient conditions @ 25°C  
Max voltage withstand (1.2/50µS) >10kV
Max current withstand (8/20µS) 40 kA
Max energy withstand (2µS) 550 joules
Max clamping voltage 710 V
Typical response time <25 nS
Size Standard DIN 17.5mm wide

Part No. E40/280 Gray Body Window Code
With failure indicator window Gray = OK
No remote sensing contacts Black = Replace
 
Part No. E40/280/NONC Red Body Window Code
With failure indicator window Red = OK
Remote sensing contacts White = Replace
Remote sensing contacts code
OK Failed (Replace)
Contacts Max. 1A/250VAC