The KENJING DFW-12 is outdoor pad mounted switchgear engineered for medium-voltage loop and radial networks. It integrates metering, protection I/O, fast communications, and arc-resistant primary switching in a compact pad mounted switchgear enclosure. With utility-grade EMC (DL/T 721-2013 Level IV), wide-range auxiliary supply, and mechanical life to 10,000 operations, it suits feeders, industrial plants, renewables tie-ins, and underground distribution switchgear projects.
Key Features and Advantages
Primary performance (MV): short-circuit breaking 25 kA, making 63 kA (peak), short-time withstand 25 kA; typical continuous current up to 630 A—aligned with pad mounted switchgear feeder duties.
High-speed protection I/O: contact inputs (DC24 V) with ≤2 ms response; two relay output groups (AC250 V/16 A; DC48 V/10 A; DC30 V/16 A) for tripping, interlocks, or transfer on pad mounted switchgear schemes.
Accurate measurement: current 0–100 A range; accuracy U: 0.5%, Q: 1%, f: 0.01 Hz—supports fault location and load studies within pad mounted switchgear assets.
Robust control power: AC220 V ±20%, 50 Hz; total consumption ≤15 VA for efficient pad mounted switchgear auxiliary design.
Comms for SCADA/DMS: 4× RS-232/RS-485 and 2× 10/100M Ethernet; IEC 60870-5-101/104 for easy substation and feeder automation across pad mounted switchgear fleets.
Environmental resilience: −40 to +70 °C, ≤95% RH (no condensation); three-phase operation asynchronism ≤2 ms—stable in harsh pad mounted switchgear environments.
Long life, low OPEX: 30 fault O-C duties at rating; mechanical life 10,000—ideal for pad mounted switchgear in ring and spur applications.
Compatible topologies: works as cable branch box, RMU node, or sectionalizing point within pad mounted switchgear networks.
Why Choose Us (KENJING)
Engineer-focused delivery: application sizing, protection coordination, and wiring diagrams optimized for pad mounted switchgear deployments.
Proven reliability: type-tested assemblies and documented QA; fast spares and lifecycle support across pad mounted switchgear installations.
Integration ready: pre-configured protocols and I/O mapping reduce commissioning time for pad mounted switchgear and ring main unit (RMU) sites.
Upgrade your feeder reliability with KENJING pad mounted switchgear. Send your single-line diagram and duty requirements—our engineers will return a matched DFW-12 configuration, drawings, and delivery plan.
| Item | Parameters |
| Operating Power Supply | Control terminal part: AC220V ± 20%, 50Hz |
| Total Power Consumption | ≤ 15VA |
| Operating Environment | Operating temperature: -40~70°C Operating humidity: ≤ 95%, no condensation |
| Measurement Input | Measurable range: Voltage: 0100A Accuracy: U: 0.5%; Q: 1%; f: 0.01Hz |
| Signal Input | Contact signal: DC24V Response time: ≤ 2ms |
| Signal Output | Standard configuration: 2 groups Output method: Power relays Contact capacity: AC250V/16A; DC48V/10A; DC30V/16A |
| Communication Method | Standard configuration: 4 RS232/RS485 ports, 2 10/100M Ethernet ports Protocols: Support IEC60870-5-101, IEC60870-5-104 and equivalent standards |
| Electromagnetic Compatibility | Complies with DL/T 721-2013 Power Industry Standard IV level |
| Primary Switch Parameters | Rated short-circuit breaking current: 25kA Rated continuous current: 63kA Rated short-circuit withstand current (peak): 25kA Rated short-circuit making current (peak): 63kA Rated short-circuit breaking current opening-closing frequency: 30 times |
| Mechanical Life | 10,000 times |
| Three-Phase Operation Asynchronism | ≤ 2ms |
