Description
Detailed Parameter Table
| Parameter Name | Parameter Value |
| Product Model | DSTC190 |
| Manufacturer | ABB |
| Product Category | Test Connector / Relay Test Block |
| Terminal Configuration | 19 test terminals + 1 grounding terminal |
| Rated Insulation Voltage | 690 V AC/DC |
| Dielectric Strength | 3.5 kV AC (50 Hz, 1 min) |
| Contact Resistance | ≤ 2 mΩ per pole |
| Wire Cross-Section | 0.5–4 mm² (AWG 20–12) |
| Operating Temperature | -25°C to +70°C |
| Housing Material | Self-extinguishing PC/ABS (UL94 V-0) |
| Mounting | DIN Rail (35 mm) |
| Safety Standards | IEC 61010-1, UL 1059 |
| Protection Rating | IP20 (front) / IP00 (rear) |
ABB DSTC190
Product Introduction
The ABB DSTC190 is a professional-grade test connector designed for safe and efficient testing of protection relays, meters, and control devices in high-voltage substations and industrial automation systems. As a critical component of ABB’s test equipment portfolio, this 19-pole test block enables technicians to isolate, short-circuit, and test secondary circuits without disconnecting wires, significantly reducing commissioning and maintenance downtime. The DSTC190 integrates seamlessly with ABB Relion® protection relays (e.g., REF615, RET670) and other IEDs (Intelligent Electronic Devices), providing standardized interfaces for voltage, current, binary I/O, and communication signals.
Engineered for reliability in mission-critical environments, the ABB DSTC190 ensures electrical safety during live testing through its reinforced isolation barriers and color-coded terminals. Its design prevents accidental contact with live parts and minimizes human error during test procedures. The block serves as a centralized interface point, streamlining routine maintenance, fault diagnosis, and system verification in compliance with IEC 61850 engineering practices. By eliminating the need for direct wire manipulation, the ABB DSTC190 enhances operational safety while preserving the integrity of control system wiring.
Core Advantages and Technical Highlights
Operational Safety and Compliance:
The ABB DSTC190 exceeds IEC 61010-1 safety requirements with 3.5 kV dielectric strength and flame-retardant housing (UL94 V-0). Its terminal design prevents accidental short-circuiting during probe insertion, while integrated grounding terminals ensure safe discharge of capacitive charges.
Precision Engineering for Reliability:
Gold-plated contacts maintain ≤2 mΩ resistance per pole, ensuring measurement accuracy during relay calibration. The screw-clamp terminals accommodate up to 4 mm² wires, providing vibration-resistant connections in rail/energy applications.
Time-Efficient Testing:
Pre-configured test plugs (sold separately) enable one-step connection of multimeters, injection kits, or CMC test sets to all 19 circuits. This reduces test setup time by >70% compared to manual methods. Compatibility with ABB’s Relion® test systems ensures synchronized testing of protection functions.
Durability in Harsh Environments:
With an operating range of -25°C to +70°C and resistance to oils, solvents, and UV radiation, the DSTC190 performs reliably in outdoor substations or industrial plants. DIN rail mounting ensures secure installation in vibrating environments.
Future-Proof Design:
Modular labeling fields support custom identifications (e.g., IEC 61850 signal names), while universal terminal sizing accommodates legacy upgrades and new installations. Cross-compatibility with ABB’s RTSD test plugs extends functionality.
Typical Application Scenarios
The ABB DSTC190 is indispensable in scenarios requiring zero-downtime testing:
Substation Commissioning: Integrates with REF615 feeder relays for primary injection testing of overcurrent protection without de-energizing switchgear.
Predictive Maintenance: Enables quarterly performance validation of RET670 transformer relays in power grids using CMC test sets via pre-wired test plugs.
Fault Diagnostics: Provides isolated test points for tracing communication errors in IEC 61850 GOOSE networks within hydroelectric plants.
Rail Electrification: Safely tests traction protection relays (e.g., REG670) under 25 kV AC catenary systems, utilizing short-circuiting features to isolate HV sections.
Industrial Cybersecurity Audits: Facilitates intrusion testing of control systems by monitoring binary I/O states without disrupting process operations in oil/gas facilities.
ABB DSTC190
Related Model Recommendations
RTSD-12: ABB’s 12-pole test plug for partial circuit testing, compatible with DSTC190 sockets.
CMC256: ABB’s advanced relay test set for automated testing via DSTC190 interfaces.
REF615: Feeder protection relay frequently interfaced with DSTC190 blocks.
RTXP 18: 18-pole test block for legacy systems, upgradable to DSTC190.
REC650: Bay controller requiring DSTC190 for signal integrity validation.
SHC100: Handheld test probe for spot measurements on DSTC190 terminals.
SPTU 240C: ABB’s time-synchronization unit tested via DSTC190 PTP ports.
Installation, Commissioning and Maintenance Instructions
Installation Preparation: Verify DIN rail alignment and clearances per IEC 60297-3. Ensure all connected devices are de-energized. Use insulated tools (VDE 1000V-rated). Label terminals according to schematic diagrams before wiring. Apply recommended torque (0.5–0.6 N·m) to terminal screws to prevent strand damage.
Maintenance Protocol: Perform annual contact resistance tests using micro-ohmmeter. Clean terminals with isopropyl alcohol if oxidation detected. Inspect for thermal stress marks after fault events. Replace if dielectric strength drops below 2.5 kV. Always use ABB-approved test plugs (RTSD series) to prevent socket wear.
Service and Guarantee Commitment
ABB provides a 36-month warranty for the DSTC190, covering material and manufacturing defects. Global technical support includes:
On-site troubleshooting for installation errors (72-hour response for critical infrastructure).
Lifetime access to wiring templates and COMTRADE file analysis tools.
Complimentary calibration verification services at ABB service centers.
Our “Test Safe” program offers replacement units during repairs. Extended warranty options (up to 10 years) include priority access to firmware updates for connected systems. ABB’s certified training centers deliver hands-on certification programs for DSTC190 operation, ensuring compliance with NFPA 70E electrical safety standards.
