The Strand Archive

Act Dimmers

Act 2

Act 2 (1983)
Portable Lighting Control

Compact, rugged and easy to use, Act 2 is the economical way to control up to four 650W lighting loads from a mains supply of 13 Amps. The two dimmers are mastered by independent faders, and each of the four output sockets can be switched off, full on, or under control of a dimmer.

Act 2 is supplied with 5 metres of mains cable and four output plugs, and the optional mounting plate converts the unit into a wall or stand mounted dimmer.

Developed at the request of agents for a basic two channel lighting control. Introduced Autumn 1983.

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NEW: Act 2 DataSheet

Act 3
The three 25A dimmers are housed in a rugged case and have individual circuit breaker protection.
Connections to the load are made through CEE17 32A socket outlets. Fader control may be by local or remote operation. Available in analogue or multiplex versions for compatibility with Strand desks.

Act 6 Dimmer range

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Act 6 (1984) Economy priced portable dimmers
1984 - 5A, 15A, Schuko versions
The chassis design of Act 6 will permit a wide range of socket types to be used for individual market areas. All types incorporate specially chosen panel fuses which will survive the usual form of abuse that this type of dimmer inevitably suffers - namely the removal and replacement of fuses on load - and LED indication of fuse continuity and the status of the power supply.
All the dimmer electronics are mounted on a single pcb which includes the power intake terminals, and connections to the triacs, mounted on the extruded aluminium heatsink case, and the connection to the control panel pcb. Each dimmer circuit is rated at a full 10 Amps, and the total continuous load is 45 Amps. If the pack is overloaded for any appreciable time, an internal thermal safety trip will switch off power, and will reset when the temperature reduces to within its normal operating range.

The circuit design of Act 6 incorporates a low voltage power supply to supply a Tempus desk which will plug directly into the local control panel of Act 6 when a full manual remote control is required.

As mentioned above, Act 6 is not intended to replace Tempus as it performs to a different specification.

Tempus ACT 6
Dimmers 6 x 10A Thyristor hard-fired for tungsten loads or transformer loads. Continuously rated at full load. 40W minimum load. 6 x 10A Triac controlled for tungsten loads only. 75% rated with thermal overload protection. 100W minimum load.
Installation Portable, or with optional brackets, wall mounting. Portable, wall mounting or rack mounting.
Outlets Two per dimmer One per dimmer
Indicators Incoming supply (one per phase). Fuse continuity. Control circuit, fuse continuity.
Fuses Reyrolle or Neozed HRC 32 x 6.3mm HRC
RFI Suppression BS800, VDE 0875. BS800, VDE 0875.
Inductive Filters Iron cored choke Toroidal choke.
Risetime Greater that 250ms. 50µS.
Dimmer Law Linear Power Law S Law
Alignment Top set per dimmer. Top set per pack.
Variants 6 x 10A 5A, 15A, Schuko sockets
3 x 20A CEE17 sockets
6 x 10A 5A, 15A, Schuko sockets.
Construction Separate pcbs for dual dimmer channels, psu, RFI etc. Motherboard with all electronics, and plug-in local control card.


From Strand Lighting catalogue (undated) and from Sales info sheet


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