SYR water level limiter 933 - with locking / without locking

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Company/ Manufacturer

Hans Sasserath GmbH & Co. KG

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Article number

0933.20.000

GTIN

4017905006477

Article description

SYR water level limiter 933 - 933.1 with locking mechanism

Level of Detail

Length of switching unit L1

Total length L2

165.1

Length of grommet + seal L3

Connection A nominal size

DN 20

Connection A1 nominal size

DN 25

Connection A2

G1 1/2"

Distance H1

195

Total height H2

336.5

Housing diameter D1

Width switching unit B1

Total width B2

117.5

Operating pressure max.

bar

Operating temperature max.

120

°C

Installation position

Main axis vertical

Protection class

IP 65

Microswitch changeover

1-pole

Load capacity of the switch alternating current

10 (4) A / 250 V

A / V

Standards/Approvals

DIN EN 12828; component identification: TÜV.HWB.21-190; VDE certificate: 139223; CE marking

Info

Data sheet

Long text

The SYR water level limiter 933.1 is used to protect boilers in hot water heating systems against burning out due to a lack of water. Installation is mandatory for closed heating systems in accordance with DIN EN 12828 with a heating output of more than 300 kW. Installation is mandatory for boilers with a lower heating output if it cannot be ruled out that impermissible heating may occur in the event of a lack of water. In addition, the SYR water level limiter 933.1 can be used wherever water level-dependent electrical switching processes are to be triggered and a test option is required without lowering the water level. The SYR water level limiter 933.1 is designed as a device with magnetic transmission of the float movement to a microswitch and enables testing without lowering the water level. The electrical switching unit can be rotated 360° and replaced without emptying the system. The SYR water level limiter 933.1 locks after being switched off. Once the fault has been rectified, the system can be switched on again using the release button on the water level limiter.

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0933.20.000