Product Description

Model Number Definition

• 22: Indicates 22mm standard industrial form factor for panel-mounted components.

• KA: Series identifier for Reliance Electric’s custom control/terminal assemblies.

• 847126: Unique OEM internal part number denoting the specific circuit layout, terminal configuration, and material specifications.

• -XM: Suffix for eXtra Module or custom modified version, signifying enhanced environmental protection, extended temperature range, or application-specific customization.

Technical Specifications

• Rated Voltage: 380–460 VAC (three-phase) / 24 VDC (control circuit).

• Rated Current: 32.7 A (continuous, power circuit) / 5 A (control circuit).

• Insulation Voltage: 1500 VAC (between power and control circuits).

• Operating Temperature: -10°C to +60°C (extended industrial range).

• Storage Temperature: -40°C to +85°C.

• Enclosure Rating: NEMA 1 (IP20), dust-resistant, panel-mount design.

• Material: Flame-retardant thermoplastic housing, tin-plated copper terminals.

• Dimensions: 120 × 80 × 35 mm.

• Weight: ~0.8 kg.

• Certifications: RoHS compliant, UL recognized component.

Interface & Communication Configuration

• Power Terminals: L1, L2, L3 (input); U, V, W (output) – 6 screw terminals for three-phase power connections.

• Control I/O Terminals: 8 digital inputs (24 VDC), 2 relay outputs (250 VAC / 5 A), 2 analog inputs (4–20 mA / 0–10 V), 2 analog outputs (0–10 V).

• Communication Port: Onboard RS-232 interface (9-pin D-sub) for direct connection to drive keypad or external HMI/PLC systems.

• Termination: Screw-type terminals with captive screws for secure, vibration-resistant connections.

Core Functions

• Signal Conditioning: Converts and isolates control signals between the main drive and external devices (sensors, PLCs, HMIs).

• Power Distribution: Provides a centralized, organized connection point for three-phase power and control wiring, simplifying system layout.

• Electrical Isolation: Offers high-voltage isolation between power and control circuits to prevent electrical noise interference and enhance safety.

• System Protection: Integrates basic overcurrent and short-circuit protection for control circuits, safeguarding sensitive drive components.

• Compatibility: Seamlessly interfaces with Reliance Electric GV3000/SE, FlexPak 3000, and other 460 VAC drive systems for plug-and-play integration.

Application Scenarios

• Industrial Drives: Primary use with Reliance Electric 20V, 20FN, 20FR series AC/DC VFDs for motor control in manufacturing.

• Material Handling: Conveyors, cranes, and hoists requiring reliable power and control connections.

• Process Industry: Pumps, fans, mixers, and extruders in chemical, food and beverage, and water treatment plants.

• HVAC Systems: Large-scale heating, ventilation, and air conditioning systems in commercial and industrial buildings.

• Legacy System Retrofits: Replacement or upgrade of aging Reliance Electric drive systems in existing industrial facilities.

Usage & Maintenance Instructions

• Installation: Mount vertically on a DIN rail or panel with a minimum 50 mm clearance around the unit for ventilation. Torque terminal screws to 1.2–1.5 Nm to ensure secure connections.

• Wiring: Use shielded cables for control signals to minimize electromagnetic interference. Separate power and control wiring by at least 100 mm to avoid cross-talk.

• Operation: Verify all connections are tight and insulated before applying power. Avoid operating in environments with excessive moisture, dust, or corrosive gases.

• Maintenance: Inspect terminals quarterly for tightness and signs of corrosion. Clean the housing annually with a dry cloth to remove dust buildup. Replace the unit immediately if housing is cracked or terminals are damaged.

• Safety: Disconnect all power before performing maintenance. Do not expose the unit to live circuits or high-voltage environments without proper personal protective equipment.