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Chint CJ19-3211 is a dedicated capacitor switching contactor with built-in current-limiting resistors, 3-pole main contacts (32ก), and 1NO+1NC auxiliary contacts, designed specifically for low-voltage reactive power compensation systems. Below is a comprehensive cross-reference table with equivalent models from major domestic and international brands:
Equivalent Models Comparison Table
| ยี่ห้อ | แบบอย่าง | Rating | ติดต่อเสริม | Key Features | ความเข้ากันได้ |
| ชินท์ | CJ19-3211 | 32ก, AC-6b, 690วี | 1NO+1NC | Built-in current-limiting resistors, direct-acting double-breakpoint structure | Original model, capacitor switching only |
| อร่อย | CDC19S-32/11 | 32ก, AC-6b, 690วี | 1NO+1NC | Same CJ19 series design, improved contact material | Direct replacement, identical mounting and wiring |
| CDC9-32/11 | |||||
| Tengen | TGCC1-32/11 | 32ก, AC-6b, 690วี | 1NO+1NC | Enhanced arc suppression, wider operating temperature range (-35°C~+70°C) | Drop-in replacement, compatible with all CJ19 applications |
| People | R19-32/11 | 32ก, AC-6b, 690วี | 1NO+1NC | Industry-standard CJ19 design, cost-effective alternative | Same dimensions and electrical characteristics |
| เอบีบี | UA30-30-10 | 30ก (equivalent to 32A), AC-6b, 690วี | 1เลขที่ | ABB capacitor switching series, built-in surge suppression | Slight current difference (30A vs 32A), compatible for most 20kvar capacitor applicationsABB Group |
| UA30-30-11 | 1NO+1NC | ||||
| ชไนเดอร์ อิเล็คทริค | LC1D32K* | 32ก, AC-6b, 690วี | 1NO+1NC | TeSys D Green series, energy-efficient coil | Requires separate current-limiting resistor if not K series |
| (K series for capacitor) | |||||
| ซีเมนส์ | 3RT2027-1AN20 | 32ก, AC-6b, 690วี | 1NO+1NC | SIRIUS series, can be used with external current-limiting module | Standard 3RT series requires additional components for capacitor switching |
| (with surge suppressor) | |||||
| Lovato | B32C10 | 32ก, AC-6b, 690วี | 1NO+1NC | Dedicated capacitor contactor, built-in pre-charging contacts | Direct European alternative, compatible mounting holes |
Key Technical Equivalence Notes
- Domestic Brand Replacements (Direct Drop-in)
Delixi CDC19S-32/11: Fully compatible with CJ19-3211, same mounting dimensions, terminal layout, and electrical specifications
Tengen TGCC1-32/11: Enhanced version with better thermal performance, designed to replace CJ19 series directly
People R19-32/11: Cost-effective alternative with identical functionality
- International Brand Considerations
ABB UA30-30-11: Preferred choice with 1NO+1NC auxiliary contacts, rated at 30A (close enough to 32A for most applications)
Schneider LC1D32KUE: Specifically designed for capacitor switching with built-in current-limiting resistors, ensure to select the “K” series
Siemens 3RT2027: Requires external surge protection module for proper capacitor switching, as standard models lack built-in current-limiting resistors
- Critical Compatibility Factors
| Factor | Requirement | Why It Matters |
| Utilization Category | AC-6b (capacitor switching) | Standard AC-3 contactors will fail prematurely with capacitor inrush currents |
| Current Rating | 32ก (or 30A for ABB) | Must match capacitor bank current (typically 20kvar at 400V) |
| ติดต่อเสริม | 1NO+1NC | Essential for interlocking and status feedback in compensation systems |
| Mounting Type | Screw-fixed (not DIN rail for CJ19) | Ensure panel cutouts match (standard 4-hole mounting) |
| แรงดันไฟฟ้าคอยล์ | AC220V/380V (matching control circuit) | Incorrect voltage will damage the coil or prevent operation |
Application Recommendations
- For Reactive Power Compensation Systems:
Prefer domestic brands (อร่อย, Tengen, People) for direct compatibility and cost-effectiveness
For European systems, ABB UA30-30-11 is the most equivalent international model
- When Replacing Existing CJ19-3211:
Verify auxiliary contact configuration (1NO+1NC) before purchasing
Ensure new contactor has built-in current-limiting resistors (critical for capacitor protection)
Match coil voltage (AC220V/380V) with existing control circuit
- หมายเหตุการติดตั้ง:
All equivalent models use the same screw-fixed mounting (M4/M5 bolts, torque 2.5~3.5N·m)
Main circuit wiring requires 4mm² copper cables, control circuit uses 1.5mm² cables
Maintain proper spacing (10cm) for heat dissipation, separate main and control circuits to avoid interference
