product name: B1 Series Pressure Switch
Introduction
1.The B1 Series Pressure Switch incorporates a new compact design and is well-suited to today's low and mid-range washing machines and dishwashers requiring single level control.
2. The B1 Series Pressure Switch is also suitable for the use with either hybrid or full electronic controls. The switch allows quick installation and combines with high performance for accurate fills to ensure low water level and energy consumption, with overflow and dry heater safety.
Design Features & Specifications
1.Functions
One level and one overflow protection
(optional)
Heater-safety contact is always present
2. Levels
Make pressure: 50 to 400 mm W.C.
Break pressure: 20 to 350 mm W.C.
Differential: minimum 15 mm W.C.; maximum
110 mm W.C.
Overflow pressure: 150 to 600mm W.C.
3. Electrical ratings
ENEC and CQC Approved:
16(4) A @125/250V – Main contacts NO
4(4) A @125/250V – Main contacts NC
1(1) A @125/250V – Overflow protection
UL Approved:
16 A , 1/2HP @125/250V – Main contacts NO
4 A , 1/3HP @125/250V – Main contacts NC
1 A @125/250V – Overflow protection
4.Tolerance
Make/ Break Set-point: ±5 mm W.C. standard
Lower tolerance available on request Overflow
protection: ±15 mm W.C. standard
5.Contacts
Main contact: SPDT snap action contact
Overflow protection contact: Slow action
contact, which is normally open
6. Terminals
6.35 x 0.80 according to IEC 760
Group connector Rast 5/Rast 2.5
Single connector using Rast 5 Code
(Without additional isolation)
7.Mounting
Standard screw mounting
Snap-fixation mounting
Others on demand
8. Pressure connection position
Two positions for choice
Other positions for tailor-made
9.Operating Temperature
Maximum 85°C
10. Relative Humidity
Maximum 95% at 40°C
Basic Switch Dimensions
Socket Types
Hose Connection Position
Two hose connection positions for customer choice, if you need other position in your applications, please
contact our representative.
Mounting types
Mounting Orientation and Set point Variation
The calibration orientation is to be "diaphragm in vertical plane", unless otherwise specified; the other
orientations' set point value will be converted by the table below:
Notes: For higher accuracy, please let us know the mounting orientation in your applications; we will calibrate the set point according to your mounting orientation. Consult our sales representatives for more information.
Circuitry
Notes to markings:
11—COM terminal; 12—Main contact NC terminal;14—Main contact NO terminal;16—Overflow protection terminal
Ordering Instructions
B1 Series Pressure Switch
