GE WKA-15 Auxiliary Relay | DPDT Contact Multiplication

The WKA-15 from GE functions as an auxiliary relay for protective relay systems. It provides contact multiplication and isolation for control circuit applications. This relay extends the output capability of protection relays and control devices. Engineers depend on its reliable operation for critical power system protection.

Technical Specifications & Hardware Details

Specification	Detail
Manufacturer	GE
Model Number	WKA-15
Category	Auxiliary Relay
Contact Configuration	2 Form C (DPDT)
Contact Rating	10 A at 250 VAC, 10 A at 30 VDC
Coil Voltage Options	24 VDC, 48 VDC, 125 VDC, 250 VDC, 120 VAC
Weight	Approximately 0.35 kg (0.77 lbs)
Dimensions (H x W x D)	3.5 in x 2.5 in x 4.0 in (89 mm x 64 mm x 102 mm)
Interface	Screw terminals for coil and contact connections
Component Count	Single-unit assembly with coil, armature, and contact block
Energy Storage	None (Electromechanical switching only)

Contact Configuration and Switching Capability

The WKA-15 provides two Form C contacts with double-pole double-throw configuration. Each contact handles up to 10 amps for controlling auxiliary circuits reliably. You can use this relay for interposing, signal duplication, or isolation applications. Furthermore, the design includes silver alloy contacts that resist welding and arcing. This durability ensures long service life in demanding environments.

Coil Design and Power Requirements

This auxiliary relay accepts various coil voltages for flexible system integration. You can select the appropriate coil rating based on application voltage availability. The WKA-15 features a sealed coil construction that resists moisture and contaminants. Its pickup and dropout characteristics meet protective relay coordination requirements. Operators gain consistent performance across temperature variations.

Physical Construction and Mounting Options

The relay features a rugged construction suited for panel mounting or socket installation. Its clear terminal labeling simplifies wiring and troubleshooting procedures. The WKA-15 mounts on standard DIN rails or using through-panel hardware. You can install this relay in new or existing control panels with minimal effort. For similar industrial applications, static trip units and protective relays use comparable auxiliary contact principles. However, this auxiliary relay specifically addresses contact multiplication requirements within GE protective relay systems. Facilities rely on it for extending output capacity and providing isolation between circuits.