Specifications:

All the models:
★ Max input power :15KW,
★ Max input current : 23A/40A
★ Output Oscillation Frequency : 30-80KHZ
★ Input voltage : Three-phase 380V/220V, 50 or 60 HZ
★ MOSFET Power device
★ Duty cycle : 80%
★ water cooling desire: 0.2Mpa, 5 L/min

What are the differences of them?

Model No.	Type	Timer function	Transformer attached	Heating/ Retaining time	Transformer cable length	Dimension (W) X (H) X (L) cm	Weight
SP-25	Normal	NO	NO			44 X 27 X 39	18kg
SP-25A	Auto-control	YES	NO	1-99 seconds		46 X 20 X 44	20kg
SP-25B	Split	NO	YES		2 meters	Main unit:    2 X 20 X 48    Transformer:    31 X 19 X 33	Main unit:   16kg   Transformer:     14kg
SP-25AB	Auto-control/Split	YES	YES	1-99 seconds	2 meters

Features:

1. Adopt the IGBT devices and our the first generation of current-converting control technology,
    output oscillation frequency is 30-80KHz.
2. Super portable,light weight.
3. Simple operation.
4. Easy to install,connecting power and cooling water can be done in several mintues, can save
    costs for customer without expert installing.
5. The power and time of heating and retaining are adjustable to improve quality and simplify operation.