Contactor - Mechanical Emergency Pump Starter Type
Mechanical Emergency Pump Start Device: ZSEE C1 series is a mechanical emergency pump start product based on a contactor as the main component, designed and developed specifically for fire water supply systems with a manual forced start function. It meets the requirements of “Chapter 11: Control and Operation” in GB50974-2014 “Technical Code for Fire Water Supply and Fire Hydrant Systems” regarding the manual mechanical closing function of fire pumps. When fire linkage or automatic control fails (malfunctions), the pump can be manually forced to start locally by personnel, ensuring the normal operation of the fire pump during emergencies to protect lives and property.
The product is suitable for starting, stopping, and related control of motors with an AC frequency of 50Hz (or 60Hz), a rated operating voltage of 380V or below, and a rated operating current of 500A or below. It can also be used in conjunction with thermal relay products to provide real-time protection for motors.
The product offers two start modes: single-unit direct start and two-unit direct start in a delta configuration, making it suitable for mechanical emergency start of fire pumps in different scenarios and power ratings, effectively meeting the diverse needs of customers.
Compliance Standards
GB/T 14048.1 “Low-voltage Switchgear and Controlgear – General Rules”
GB/T 14048.4 “Low-voltage Switchgear and Controlgear – Low-voltage Electromechanical Contactors and Motor Starters”
GB/T 14048.5 “Low-voltage Switchgear and Controlgear – Control Circuit Devices and Switching Elements Electromechanical Control Circuit Devices”
IEC 60947-1 “Low-voltage Switchgear and Controlgear – General Rules”
IEC 60947-4-1 “Low-voltage Switchgear and Controlgear – Low-voltage Electromechanical Contactors and Motor Starters”
IEC 60947-5-1 “Low-voltage Switchgear and Controlgear – Control Circuit Devices and Switching Elements Electromechanical Control Circuit Devices”
Operating Environment
Altitude: Not exceeding 2000m
Ambient temperature: Not higher than +40°C and not lower than -5°C, with an average temperature not exceeding +35°C over 24 hours
Atmospheric conditions: At +40°C, the relative humidity of the air should not exceed 50%. Higher relative humidity is allowed at lower temperatures. The average minimum temperature in the wettest month should not exceed +25°C, and the average maximum relative humidity in that month should not exceed 90%, taking into account condensation on the product due to temperature changes.
Pollution level: Level 3
Installation category: Category III
Installation conditions: The installation surface should not have an inclination greater than ±5° relative to the vertical surface
Shock and vibration: The product should be installed and used in places free from significant shaking, shock, or vibration.
Application Scope
Primarily used for controlling fire pumps and other types of motors with AC frequency of 50Hz (or 60Hz), rated insulation voltage of 1000V, and rated operating voltage of 380V and operating current up to 500A under AC-3 category. It is widely applied in light industry, metallurgy, coal mining, railroads, residential buildings, offices, and other industrial and civil buildings' fire pump control cabinets as well as other pump control cabinets. It can also be used as a conventional contactor product.
Model Description
- Rated current: 16, 25, 32, 38, 50, 65, 80, 95, 110, 150, 180, 250, 400, 500;
- Control power supply voltage②(V):
- Below 95A: 127, 220 (unmarked), 380
- Above 110A: 110, 220 (unmarked), 380
Note:
- Depending on the current and start method, the ZSEEC1-SD series can be equipped with various specifications of external operation handles. For details, refer to the model and appearance appendix in the sample. Confirm the specific handle specifications with the business department before ordering.
- For products below 95A, the control power supply voltage is AC. For products above 110A, the control power supply voltage is AC and DC dual-use.
Auxiliary Contact Configuration Table
| Location | Applicable Model | Accessory Model | Order Model | Configuration Model |
|---|---|---|---|---|
| Manual Mechanism Section | ZSEEC1-16~95/SD | 2 open | None | Standard configuration |
| ZSEEC1-16~95/SDZ | 4 open | None | Standard configuration | |
| ZSEEC1-110~500/SD(Z) | 4 open 4 closed | None | Standard configuration | |
| Contactor Section (Maximum optional quantity per unit) |
ZSEEC1-16~95/SD | F44-XX | F44-40 (4 open) F44-04 (4 closed) F44-13 (1 open 3 closed) F44-31 (3 open 1 closed) F44-22 (2 open 2 closed) |
Optional Must be ordered separately |
| ZSEEC1-110~500/SD | A21R (Each contactor can be equipped with up to 2 sets, forming 3 open 3 closed) |
F12 (1 open 2 closed) F21 (2 open 1 closed) F33 (3 open 3 closed) |
Optional |
Note:
- When ordering the ZSEEC1-110~500/3SDZ series, the auxiliary contact A21R should be ordered as Fxx/xx. The left contactor is placed at the front and the right contactor at the back by default. If one of the units does not require auxiliary contacts, it should be marked as 00. Example: ZSEEC1-110/3SDZF21/00, ZSEEC1-500/3SDZF12/33.
- When purchasing the A21R accessory separately, the order model does not need to be filled in; only A21R needs to be specified.
Selection Examples
| ZSEEC1-80/3SDJ | Rated current 80A, single-unit direct start, 3 poles, regular external type, 220V control voltage |
| ZSEEC1-180/3SDJ F21 | Rated current 180A, single-unit direct start, 3 poles, regular external operation 220V control voltage, 2 open 1 closed auxiliary contacts |
| ZSEEC1-400/3SDZJL380 F33/21 | Rated current 400A, dual control, lockable external operation, 380V control voltage, left contactor auxiliary contacts 3 open 3 closed, right contactor auxiliary contacts 2 open 1 closed |
Product Features
- Equipped with manual forced closing function to meet the manual closing requirements of fire pumps;
- Mature mechanical structure design ensures stability and reliability during manual switching;
- The contact system of the product is silver-plated, and the metal parts on the surface are nickel-plated;
- The coil winding uses copper enameled wire, with an insulation class of H (160°C);
- Convenient and flexible accessory installation, safe and reliable;
- Integrated structure of two-unit direct start in a delta configuration, easy installation.
Technical Specifications
Note: ① The operating power of a controllable three-phase squirrel-cage motor refers to the motor’s power parameter during normal operation after starting. It should not be used as a reference for model selection. For selection, refer to the “380V Motor and ZSEE Mechanical Emergency Contactor Model Comparison Table” on page 12.
ZSEEC1-16~95 Product Outline and Installation Dimensions
ZSEEC1-110~500 Product Outline and Installation Dimensions
Handle Model and Appearance Appendix
Auxiliary Contact Terminal Diagram
380V Motor and ZSEE Mechanical Emergency Contactor Model Comparison Table
Note:
- All motors and accessories involved in this solution are produced by certified manufacturers and strictly comply with national standards.
- This comparison table is for typical design application reference only. Actual selection should be based on site-specific design conditions.
- The star-delta starting method models in the diagram refer to the main contactor and delta contactor models. The star contactor needs to be selected separately.
- Due to continuous product upgrades and optimizations, all product information contained in this document is subject to the actual product. If changes occur, no further notice will be given. Our company and its employees do not bear any joint responsibility for disputes caused by unverified information from this document that has not been confirmed by our business department.