Fire pump control cabinets
- Design basis: GB 50974-2014 (Technical code for fire protection water supply and hydrant systems), requirements for pump set power distribution and starting
- Dual power supply: automatic transfer switch (ATS) at the end of the circuit, automatic transfer to the standby source, transfer time configured to project requirements
- Starting method: direct-on-line, star-delta reduced voltage, autotransformer reduced voltage or soft start, selected by pump rating and supply conditions
- Emergency function: mechanical emergency pump start device, allowing forced manual start even if the control circuit fails
- Protection and signals: overload, phase loss, short circuit and low-water protection; run, fault and supply status signals output to the fire control room
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 | Floor-standing fire pump control panel, single pump or multiple pumps in one cabinet (inspection cabinet optional) |
|---|---|
| Standard sizes (W×D×H) | 800×600×2000 / 1000×600×2000 mm; multi-pump configurations widen with the number of pumps |
| Enclosure construction | 2.0 mm cold-rolled carbon steel, bent and welded with reinforcing ribs, electrostatic powder coated |
| Surface treatment | Degrease → derust → phosphating → electrostatic powder coating 60-80 μm, baked at 200 °C for 30 minutes |
| IP rating | IP54 as standard (indoor pump room installation); IP55 / IP65 available for outdoor or damp environments |
| Door and lock | Double-door construction; panel labeling includes pump number, function and operating direction; mechanical emergency device clearly positioned |
| Installation | Floor mounting, with ≥1200 mm operating and service access in front of the panel |
| Cable entry | Cable entry from the bottom through a gland plate; main circuit outgoing connections brought out on copper busbar |
| Design basis | GB 50974-2014 Technical code for fire protection water supply and hydrant systems (pump set power distribution and starting requirements) |
|---|---|
| Power supply configuration | Two incoming supplies + automatic transfer switch (ATS) at the end of the circuit, automatic transfer to the standby source |
| Pump configuration | Single pump, duty/standby, duty/duty/standby, or multiple pumps in parallel (sized to the design flow of the fire water system) |
| Starting method | Direct-on-line, star-delta reduced voltage, autotransformer reduced voltage, or soft starter — selected by pump power and transformer capacity |
| Start conditions | Pressure switch / flow switch / manual start from the fire control room / local emergency pushbutton — multiple signals in parallel |
| Mechanical emergency | Mechanical emergency pump start device — allows manual forced closing to start the pump if the control circuit loses power or fails |
| Protection | Overload, phase loss, short circuit, and overheat protection; low water level protection in the reservoir (prevents dry running) |
| Signal interface | Volt-free contacts for run, fault, power supply, and auto/manual status, wired out to the fire control room |
| Duty/standby hydrant pump | Two pumps in duty/standby operation, started by pressure switch signal, with automatic transfer on fault |
|---|---|
| Duty/duty/standby sprinkler pump | Three pumps in duty/duty/standby configuration, staged in according to the rate of pressure drop in the piping network |
| Jockey pump + main pump interlock | The jockey pump maintains piping network pressure; when pressure drops to the main pump start setpoint, the main pump is brought in |
| Mechanical emergency start option | Supplied with a mechanical emergency pump start device for manual forced start if the control circuit fails |
| Patrol inspection cabinet option | Supplied with an automatic patrol inspection cabinet for fire pumps, which runs periodic low-frequency checks to prevent pumps and valves from failing after long idle periods |
| Dual power supply with transfer at the point of use | Two power feeds switched through an ATS, with power status monitoring and fault alarm |
| Design basis | GB 50974-2014; assembly construction per GB/T 7251.1 / IEC 61439-1 |
|---|---|
| Clearance & creepage | Meets pollution degree 3 and overvoltage category III requirements |
| Insulation resistance | ≥1 MΩ (500V megohmmeter) |
| Power frequency withstand voltage | Main circuit 2500V / 1 min, control circuit 1500V / 1 min |
| Dual power transfer test | Item-by-item measured records of main/standby power transfer, transfer time, and pump operating status after transfer |
| Routine tests (every unit) | Circuit checks, insulation and dielectric withstand, actuation of multiple start signals, fault transfer, mechanical emergency pump start, and on-load trial run |
| Documents with shipment | Electrical schematic, terminal wiring schedule, test report, BOM, factory photos (certification-related documents provided per project requirements) |
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.
End-of-line power transfer
The two power sources transfer automatically at the end of the line inside the cabinet. If the primary source fails, the backup source is switched in automatically and the power status is signaled to the fire control room. Transfer time and pump starting status after transfer are measured and recorded for each pump.
Mechanical emergency backup
If the control circuit fails, a module is damaged, or the program runs away, there is still a mechanical emergency pump start path. This path is function-tested individually before shipment and does not depend on any electronic component.
Parallel start signals
Pressure switch, flow switch, manual start from the control room, and local emergency pushbutton run in parallel — any one active path starts the pump. In fire protection systems we do not cut corners with an "OR gate is good enough" design.
Every protective action tested
Overload, phase loss, short circuit, and low-level protection are each simulated and recorded before shipment. Fire pumps are no place to leave protection at "it should be fine."
Front operating space
A 1200 mm operating and service aisle is left in front of the cabinet, and the location of the mechanical emergency device is clearly marked on the panel — when things go wrong, nobody has time to dig through drawings.
Standing idle is also a failure source
Where an inspection cabinet is provided, periodic low-frequency inspection checks the condition of the pump set and valves. The most common problem with fire pumps is not wearing out from use — it is deteriorating from sitting idle.
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.
Plant and warehouse fire protection
Main/standby control and dual power transfer for fire hydrant pumps and sprinkler pumps.
Commercial complexes and office buildings
Fire pump group control for the fire pump room, with signals tied into the fire control room.
Underground pump room in a residential community
Fire pump group control cabinet in a combined domestic and fire water pump room.
Hospitals and data centers
Fire water supply and pressure stabilization systems with high reliability requirements.
Chemical and petrochemical plant areas
Pump group power distribution and control schemes per the project's fire protection design requirements.
Fire pump room retrofit
Retain the pump group and replace the control cabinet and dual power supply device, adding emergency start and signal output.
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
Does a fire pump control panel require mandatory certification?
Fire pump control panels fall under fire product market access requirements, and these requirements are not identical across projects. Please specify the project's certification and acceptance requirements at the inquiry stage; we will match the supply scope to the project requirements and provide the corresponding documents.
Which part of the dual power supply transfer do you supply?
We supply the end-of-line automatic transfer switch (ATS) inside the cabinet: two power supply incoming lines, automatic transfer to the standby source, and transfer status and fault signal output. The incoming power source, transformer and upstream switching are determined by the project's electrical design.
What does the mechanical emergency pump start do?
When the control circuit loses power or a control component fails and neither automatic nor manual electrical start will operate, the mechanical emergency device closes the circuit directly to start the pump. It is the fallback measure for fire pump power distribution and is function-tested individually before shipment.
How many pumps can one cabinet handle?
The common configurations are one duty plus one standby (two pumps in one cabinet) and two duty plus one standby (three pumps in one cabinet). Multiple pumps in parallel can also be built into one cabinet or split across several cabinets. The number and power rating of the pumps are determined by the flow and head specified in the fire water system design.
Will a low water level in the tank stop the pumps?
Yes, protection is provided, but it must be considered together with the actual fire water intake requirements. The standard approach is to alarm on low water level and stop the pumps to prevent damage from dry running; the specific trip point is set according to the effective volume of the fire water tank and the design requirements.
What do I need to provide for an inquiry?
The fire pump model, power rating, quantity and starting method; dual power supply requirements; the source of the start signal (pressure switch / flow switch / control room); the pump room dimensions and installation method; and the project's certification and acceptance requirements. A fire water system drawing is preferred, but we can issue a scheme without one.
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.
New fire pump room or retrofit?
Send us the pump model, power rating, quantity, starting method and project certification requirements, and we will provide a free control scheme and dual power supply configuration · 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.