Operating Instructions and Installation Instructions

Danfoss Randall can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss Randall
reserves the right to alter its products without notice. This also applies to products already on order provided that such alterations can
be made without subsequent changes being necessary in specifi cations already agreed.
Part No: 3046 Issue 9 12/05
2
Danfoss Ltd,
Ampthill Road,
Bedford MK42 9ER.
Tel: [phone] Fax: [phone]
Email: [e-mail]
Website: www.heating.danfoss.co.uk
Technical Specifi cation Model 811 Model 851
Power Supply 220/240Vac, 50/60Hz
Switch Action 1 x SPST, type 1 B (volt free) 1 x SPDT, type 1 B (volt free)
Switch Rating 220/240Vac, 50/60Hz, 30(10)A 220/240Vac, 50/60Hz, 10(4)A
Setting and Running Accuracy +/- 1 min and +/- 1min/month
Power Reserve 3 month on fully charged battery
Max number of programmable operations up to 200 ON or OFF operations per week
Enclosure Rating IP30
Max Ambient Temperature 45°C
Overall Dimensions 228mm wide, 115mm high, 50mm deep
Control Pollution Situation Degree 2
Software Classifi cation Class A
Designed to meet BS EN60730-2-7
Rated Impulse Voltage 2.5kV
Ball Pressure Test 75°C
THIS WAY UP
Spare
N
L
1
2
Alternative position
for cable clamp
Aperture
for
cable
entry
4 fi xing
holes
2 cable
clamps
3 knockouts for
surface cable
entry
Rating and
model label
Terminal block Do not route
surface mounted
cables through
shaded area
C/L
Do not slacken the
screws on this side of
the terminal block
Polarised
plug
Model 811
THIS WAY UP
Alternative position
for cable clamp
Aperture
for
cable
entry
4 fi xing
holes
2 cable
clamps
3 knockouts for
surface cable
entry
Rating and
model label
Terminal block Do not route
surface mounted
cables through
shaded area
C/L
Polarised
plug
N
L
6
5
4
3
2
1
Model 851