GE WEA13-13 2508-21001 Universal coil electromechanical relay
GE WEA13-13 2508-21001 Technical Specification
(Multi-Voltage Electromechanical Relay Module)
Specification
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Attribute
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Detail
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|---|---|
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Part Number
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WEA13-13 (2508-21001 variant)
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Manufacturer
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General Electric (GE)
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Series
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WEA Industrial Relay Series
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Country of Origin
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Hungary (GE Tungsram)
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Function
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Heavy-Duty Power Switching Relay
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Description
The GE WEA13-13 2508-21001 is a universal-coil electromechanical relay with 4PDT (4 Form C) contacts designed for industrial control circuits. Features wide-voltage compatibility (24–240V AC/DC) and 10A switching capacity. Sealed construction resists dust, humidity, and corrosive gases in turbine control panels and locomotive systems.
Features
- Electrical Flexibility:
- Multi-Voltage Coil: 24–48V DC / 48–240V AC (50/60Hz)
- Contact Configuration: 4 Form C (4PDT)
- LED Status Indicator: Red (energized) / Green (de-energized)
- Robust Construction:
- Hermetically sealed contacts (nitrogen-filled)
- -40°C to +85°C operational range
±8kV surge immunity (IEC 61000-4-5)
- Safety Compliance:
- SIL 3 (IEC 61508) / CAT III (600V)
| Model Variations | WEA13-13 (2508-21001) | Standard WEA13 |
|—————————-|—————————-|——————–|
| Contact Material | AgCdO (anti-welding) | AgNi |
| Terminal Type | Screw clamp (Cu alloy) | Solder lug |
- SIL 3 (IEC 61508) / CAT III (600V)
Electrical Specifications
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Parameter
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Specification
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|---|---|
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Contact Rating
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10A @ 250V AC (resistive) / 6A @ 30V DC
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Max Switching Voltage
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600V AC / 250V DC
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Max Inrush Current
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40A (20ms)
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Coil Power Consumption
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1.2W (DC) / 3.5VA (AC)
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Contact Resistance
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<50 mΩ (initial)
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Insulation Resistance
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>1000 MΩ (500V DC)
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Switching Time
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<15 ms (operate) / <10 ms (release)
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Product Properties
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Property
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Specification
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|---|---|
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Enclosure Rating
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IP67 (dust/waterproof)
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Terminals
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13-pin (ISO 50017-13 screw clamp)
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Material
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PBT thermoplastic housing, stainless steel spring
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Dimensions
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29 × 65 × 53 mm (1.1 × 2.6 × 2.1 in)
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Weight
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120 g (0.26 lbs)
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Mechanical Life
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10⁷ operations
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Electrical Life
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10⁵ operations (10A resistive)
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Thermal Derating Curve
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Ambient Temperature
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Max Continuous Current
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|---|---|
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20°C
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10A
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50°C
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8.5A
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70°C
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6A
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85°C
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4A (intermittent only)
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Key Applications
- Turbine Protection Circuits:
- Lube oil pump interlocks (Mark VIe controllers)
- Generator breaker trip coils
- Railway Signaling:
- Track circuit control (GE VitalLogic systems)
- Level crossing gate motors
- Industrial Automation:
- Conveyor emergency stop circuits
| Industry | Typical Load |
|———————–|———————————-|
| Power Generation | Solenoid valves (12A inrush) |
| Oil & Gas | Gas detector alarms (24V DC) |
| Water Treatment | Chemical dosing pumps (240V AC) |
- Conveyor emergency stop circuits
️ Critical Integration Notes:
- Coil Suppression:
- DC Coils: Install 1N4007 diode across coil terminals (cathode to +)
- AC Coils: Use RC snubber (100Ω + 0.1μF 250V) to suppress arcing
- Contact Protection:
- For inductive loads (contactors/relays): Add varistor (V130LA20AP) across contacts
- For lamp/motor loads: Derate to 60% of nominal current
- Installation:
- Maintain ≥15 mm clearance between adjacent relays for heat dissipation
- Torque terminals to 0.6 N·m – overtightening cracks housing
- Fail-Safe Design:
- Configure NC contacts for critical shutdown paths (failsafe on coil loss)
- Avoid parallel contacts for current sharing – use interposing relays instead
- Maintenance:
- Replace after 100,000 cycles or 5 years (whichever first) in high-vibration environments
- Clean terminals annually with contact enhancer (CX-80) to prevent oxidation
- Safety Compliance:
- SIL 3 applications require dual-channel wiring (two relays in series)
- UL 508 isolation barriers needed when switching >150V AC
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