Helvar Ltd
Hawley Mill,
Hawley Road
Dartford, Kent
DA2 7SY
UK
www.helvar.com
Helvar 499
8道闭合继电器单元
Doc: 9999, issue 1
日期: 2015-07-20
安装指南
8道闭合
继电器单元(499)
Connections
DALI: 0.5 mm² – 1.5 mm² stranded or solid core
(max. 300 m @ 1.5 mm²)
Mains/relay: Up to 4 mm² solid core or up to 2.5mm²
stranded
SDIM/DMX: 0.22 mm² – 1.5 mm² low-loss RS485 Type
multistranded, twisted and shielded
Cable rating: All cables must be mains rated.
Power
Mains supply: 85 VAC – 264 VAC
45 Hz – 65 Hz
Power consumption: 0.3 W
Internal losses: 0.6 W per channel at 20 A
Control circuit
protection:
6 A maximum. The unit’s mains supply must
be protected.
Isolation: 3 kV between every connector, with these
exceptions:
SDIM 0V and OVR 0V are NOT isolated from
each other.
Mechanical data
Dimensions: 160 mm × 100 mm ×46mm
Housing: 9 U white plastic (polycarbonate) DIN-rail case
Weight: 425 g
IP code: IP20 (IP00 at terminals)
Operating and storage conditions
Ambient
temperature:
0 °C to +40 °C
Relative humidity: Max. 90 %, noncondensing
Storage
temperature:
–10 °C to +70 °C
Conformity and standards
DALI standard: IEC 62386:101 2014
IEC 62386:102 2014
IEC 62386:208 2009
Emission: EN 55015
Immunity: EN 61547
Safety: EN 60950
SDIM: Helvar SDIM protocol
DMX: DMX512-A protocol
Environment: Complies with WEEE and RoHS directives.
DALI
DALI addresses: 8, 4, or 2
DALI consumption: 2 mA
Inputs
Communication: DALI, SDIM and DMX
Override: Wired override input
User interface: 2 push buttons for configuration
Channels: 8
Relay contacts: High inrush 500 A / 2 ms
Relay voltage: 240 VAC / 400 VAC
Max. load per
contact:
20 A resistive / incandescent;
20 A, PF 0.6 / fluorescent
Number of devices: For ballasts, quantity is limited by MCB; refer
to manufacturer’s data.
Relay circuit external protection must not
exceed 20A.
These are power relays and are not suitable
for extra-low voltage operation.
Where power relays are used to control
contactors, snubbers must be fitted.