Pump station distribution cabinets
- Incoming line: single source or automatic dual-source transfer (ATS) for continuous pump house operation
- Pump circuits: DOL / star-delta / soft start / VFD configured to pump power rating and process
- Interlock: automatic start/stop and rotation by level / pressure, automatic duty/standby pump changeover
- Auxiliary circuits: screens / ventilation / lighting / maintenance socket / anti-condensation heater
- Environment: moisture and condensation protection designed for long-term operation in hot-humid and semi-underground pump houses
Specifications
The table below covers 80% of factory distribution room cases. Anything outside it we can still build — those are engineered items, quoted separately, with an indicative price the same day.
| Type | GGD modular floor-standing assembly (sectionable), installed inside the pump house |
|---|---|
| Standard sizes (W×D×H) | From 800×600×2000, sectioned by circuit count, custom build available |
| Enclosure construction | 2.0 mm cold-rolled carbon steel, moisture-resistant door gasket + bottom cable glands |
| IP rating | IP54 (standard pump house) / IP65 (washdown environment) |
| Moisture-proof | Anti-condensation heater + thermostat, no condensation in hot-humid pump houses |
| Foundation | Channel steel base raised above floor level (flood protection), cable trench / tray entry per pump house drawing |
| Rated voltage | AC 380V / 400V, 50 Hz |
|---|---|
| incoming feeder | Single-source or dual-source ATS (utility + backup / generator) |
| Pump circuits | DOL (≤15 kW) / star-delta / soft start / VFD, configured per pump |
| Automatic control | Automatic start/stop by level or pressure, duty/standby rotation with automatic transfer on fault |
| Auxiliary circuits | Bar screen / ventilation / lighting / maintenance socket / anti-condensation heater |
| Signal | Level transmitter (float / hydrostatic / ultrasonic) wired in per accuracy selection |
| Monitoring | Current / energy / pump run status, optional RS485 reporting to the pump station platform |
| Component brands | Schneider / ABB / Siemens / Chint; customer-supplied components accepted for factory installation |
| Sewage lift pump station type | Two pumps, duty/standby + level-based rotation + bar screen and ventilation auxiliary circuits |
|---|---|
| Water supply booster pump station type | Constant pressure VFD + air tank, sleep function |
| Flood drainage / stormwater pump station type | Multi-pump staged starting + dual source + remote reporting |
| Irrigation pump station type | Multi-pump grouping + timed zone irrigation control (with JP box) |
| Semi-basement pump room type | Flood-proof base + forced ventilation + reinforced dual source |
| Assembly standard | GB/T 7251.1 / IEC 61439-1 |
|---|---|
| Interlock verification | Simulate level signals pump by pump to verify start/stop, rotation and automatic transfer on fault logic |
| Routine tests (every unit) | Insulation resistance, dielectric withstand, full-circuit energization and interlock commissioning |
| Temperature rise | Terminal and busbar connections ≤70 K |
| Documents with shipment | System diagram, level interlock description, terminal schedule, BOM, test report |
Five steps to specify your run
A configuration summary is generated as you go. It travels with your inquiry, saving a round of confirmation.
Build details
Systems have been in service for decades, and the failure points are always the same few: poor busbar contact, water ingress at the door seal, high temperature rise in the correction cabinet, and mis-phased outgoing feeders. The six hard rules below are written for exactly these points — every cabinet can be traced to them.
Level logic fixed in firmware
Start / stop / alarm levels and rotation logic are hard-coded to the process and delivered with the interlock documentation: the pump house runs unattended, and the logic does not depend on what a commissioning technician decides on site.
Equalized running hours
Duty/standby pumps rotate automatically by running hours to equalize wear — no more "one pump runs until it dies, the other rusts in place." We manage the pump life ledger for you inside the cabinet.
Raised above floor level
The cabinet's channel-steel base sits above the pump house floor, with incoming and outgoing cables routed toward the cable trench: in a semi-basement pump house, the cabinet stays dry first — a flooded pump can be replaced, but a flooded cabinet takes down the whole station.
Heater + ventilation, dual protection
In hot, humid pump houses, condensation is heavy day and night: a thermostatically controlled anti-condensation heater plus a linked ventilation circuit keep the interior dry and the components free of corrosion.
Full sequence simulated at the factory
A signal generator simulates level changes, and the start/stop, rotation, automatic failure changeover and alarm sequences are all powered up and run through end to end — on site you only calibrate the level transmitter.
Reporting activated on demand
RS485 is reserved and pre-commissioned (current / status / level reporting). Once the pump station platform is built, connect directly; if no platform is built, the system still runs locally — no dead-end, no half-finished integration.
Photos & enclosure construction
Below are photos taken in our own shop — from the complete unit down to the internal busbars and secondary wiring. Every build detail can be checked item by item.
Image key: 01–05 are shop photos (the numbers match the shot list). The line drawing shows the front elevation of the enclosure; dimensions match the specification table above.
Where these cabinets go
These are the routine applications — we can talk scheme and configuration directly. For the industry view, see the industry pages.
Wastewater lift pump station
Duty/standby rotation + automatic level control.
Water supply booster pump station
VFD constant pressure + sleep mode energy savings.
Urban stormwater pumping station
Multi-pump staging + dual power supply + remote reporting.
Farmland irrigation pumping station
Grouped rotation irrigation + time-sequence control.
Plant circulating water pump house
Process pump group coordinated with cooling towers.
Semi-underground pump house retrofit
Flood protection and ventilation upgrades, dual power supply upgrade.
Commercial terms
Specification dated September 2026; quotations follow this.
| Drawings & design | Free |
| MOQ | 1 unit (5 or more recommended for production) |
| Production lead time | 15-25 days after drawing approval |
| on-time delivery | 98% |
| Warranty | 12 months |
| Loading port | Ningbo / Shanghai, China |
| Component brands | Schneider / ABB / Siemens / Chint |
| Factory visit & dispatch confirmation | Factory visits welcome; finished-cabinet photos and video before dispatch |
| Capacity | 5,800+ units / year |
Documents for your engineering team
Selection manual, outline dimensions and RFQ checklist — for the customer's electrical engineer. All three documents are being organized by product line; download links go live once complete.
Six questions procurement and electrical engineers ask most
What is the difference between a pump station distribution cabinet and buying a few pump control cabinets and wiring them together?
Assembled design: incoming line, pump circuits, level interlocking and auxiliary circuits are engineered together in one cabinet, with interlock logic fixed at the factory and full-unit testing. A pieced-together setup means field wiring, commissioning and split responsibility across suppliers. For projects with tight pump house space and short schedules, an assembled cabinet gets it right the first time.
Should the level transmitter be a float switch or a static pressure / ultrasonic type?
Float switch: inexpensive and reliable, moderate accuracy, and often tangled by debris in wastewater stations with heavy screening. Static pressure: continuous signal, supports staged control, choose a clog-resistant type for wastewater. Ultrasonic: non-contact, maintenance-free, higher cost. For high control accuracy such as staged pump starts, use a continuous signal; for simple start/stop, a float switch is sufficient.
How does duty/standby rotation work?
Automatic duty/standby rotation by cumulative running hours: after pump A reaches the set hours, pump B takes priority next time, balancing wear. If the running pump faults, the standby pump starts automatically and an alarm is raised. The rotation strategy is documented in the interlock description and can be set on site.
What should be considered for a semi-underground pump house?
Flood protection (raised cabinet base + incoming cables routed in trenches), moisture protection (heater + forced ventilation), dual power supply (water ingress and power loss often occur together). Send us the pump house section drawing and we will provide the layout and foundation plan based on elevation.
Can it connect to a pump station remote platform?
RS485 / Modbus is standard: pump status, current, level and alarms are reported, and remote start/stop authorization can be enabled. If the platform is not built yet, run locally first with the interface reserved for later connection. For unmanned facilities like pump stations, remote monitoring will be needed sooner or later.
How do you replace cabinets when retrofitting an old pump house?
Evaluate reuse of existing pumps and level transmitters: pump circuits are configured to the old pump parameters, and level transmitters are connected by model. The cabinet is custom-built to the actual pump house space and cable entry direction. Send site photos and pump parameters and we will provide a retrofit plan free of charge.
Other cabinet types in the same main circuit
Related products use color-block placeholders for now (product photos not yet complete; they will be replaced together). Internal links will be filled in once live URLs are confirmed.
Send the pump house layout and pump parameters and we will provide the complete assembled solution
Send pump parameters (quantity / power) and pump house conditions and we will provide a free assembled power distribution and interlocking solution · Quotation within 24 hours. Direct from the source factory, MOQ 1 unit, 15–25 day delivery, 1-year warranty.
ISO 9001:2015 · CE(LVD+EMC) · CQC · IP65
When you write, include: single-line diagram or primary scheme, switch room layout, load list, and component brand requirements. You do not need complete drawings — capacity and cabinet type are enough to start.