Heavy-Duty Solid State Relay (MPN: BLX-SSR-6100) is an industrial-duty component engineered for continuous factory operations, piping systems, and machinery maintenance in Kenya. Key verified ratings include Rated Load Current: 40 A RMS (With appropriate heatsink), Load Voltage Range: 24 - 480 V AC (50/60 Hz), Control Input Voltage: 3 - 32 V DC. Standard plant applications include Rapid PID duty-cycle pulse control of industrial heating elements (Band, Immersion, Cartridge), Plastic injection molding machine and extruder temperature control zones, Packaging machine heat-sealing jaws, flow wrappers, and shrink tunnels. Held at our STARNEX counter on Enterprise Road, Nairobi Industrial Area for immediate collection or same-day dispatch. When requesting a quotation, please specify required quantity, operating voltage/phase, pipe connection size, and delivery destination.
Heavy-Duty Solid State Relay
Heavy-Duty Solid State Relay (MPN: BLX-SSR-6100) is an industrial-duty component engineered for continuous factory operations, piping systems, and machinery maintenance in Kenya. Key verified ratings include Rated Load Current: 40 A RMS (With appropriate heatsink), Load Voltage Range: 24 - 480 V AC (50/60 Hz), Control Input Voltage: 3 - 32 V DC. Standard plant applications include Rapid PID duty-cycle pulse control of industrial heating elements (Band, Immersion, Cartridge), Plastic injection molding machine and extruder temperature control zones, Packaging machine heat-sealing jaws, flow wrappers, and shrink tunnels. Held at our STARNEX counter on Enterprise Road, Nairobi Industrial Area for immediate collection or same-day dispatch. When requesting a quotation, please specify required quantity, operating voltage/phase, pipe connection size, and delivery destination.
Functional engineering application
The BLX-SSR-6100 Heavy-Duty Solid State Relay provides reliable, arc-free power switching for electric heating elements, ovens, packaging sealing bars, and plastic processing machinery across Kenya. Unlike mechanical contactors that suffer from contact pitting, carbon buildup, and audible chatter under rapid PID pulsing, the BLX-SSR-6100 employs solid-state semiconductor thyristors capable of switching millions of cycles without degradation. Featuring advanced zero-crossing detection circuitry, the relay switches on only when the AC sine wave crosses zero volts, drastically minimizing high-frequency electromagnetic interference (EMI) and current spikes. A heavy nickel-plated copper baseplate ensures efficient thermal conduction to external aluminum heatsinks.
Industrial 40A solid state relay featuring 24-480VAC load switching, 3-32VDC logic control input, zero-cross switching, 4000V optical isolation, copper baseplate, and LED indicator.
Quotation & fulfilment
Parametric technical attributes
| Generic BLX-SSR-6100 | |
| IDENTIFICATION | |
| Component Type | Heavy-Duty Solid State Relay |
| Manufacturer / Brand | Generic |
| Part Number (MPN) | BLX-SSR-6100 |
| Stock Keeping Unit (SKU) | STX-BLX-BLXSSR6100 |
| TECHNICAL PARAMETERS | |
| Rated Load Current | 40 A RMS (With appropriate heatsink) |
| Control Input Current | 6 - 25 mA @ 12VDC |
| Switching Mechanism | Zero-Cross Switching (Zero Voltage Turn-On) |
| Dielectric Isolation Strength | ≥ 4000 V RMS (Input to Output / Base) |
| Peak Non-Repetitive Surge | 400 A (10 ms half-sine wave) |
| Off-State Leakage Current | ≤ 5 mA @ 480VAC |
| Turn-On / Turn-Off Time | ≤ 1/2 AC cycle (≤ 10 ms @ 50Hz) |
| Protection Cover | Snap-on Transparent Touch-Safe Terminal Cover (IP20) |
| PERFORMANCE & RATINGS | |
| Load Voltage Range | 24 - 480 V AC (50/60 Hz) |
| Control Input Voltage | 3 - 32 V DC |
| On-State Voltage Drop | ≤ 1.6 V AC @ rated current |
| Operating Temperature Range | -30°C to +80°C |
| CONSTRUCTION & CONNECTION | |
| Baseplate Material | Heavy Nickel-Plated High-Conductivity Copper |
| COMPLIANCE & LOGISTICS | |
| Stock Availability | On request |
System fitment & verified replacements
Interchangeable models
- Crydom D2440
- Omron G3NA
- Autonics SR1
Commonly installed on equipment from
Common questions on this part
Yes. All solid state relays generate heat (approximately 1.2 to 1.5 Watts per Amp switched). When switching loads over 5 Amps, the BLX-SSR-6100 must be mounted on a properly sized finned aluminum heatsink with thermal grease to prevent semiconductor overheating.
No. The BLX-SSR-6100 uses AC thyristor semiconductor outputs that naturally turn off at AC zero-crossing. It is designed strictly for AC loads (24-480VAC). Dedicated DC-DC solid state relays are required for DC loads.
Yes. The 3-32VDC input is engineered to accept the 12VDC pulse output from temperature controllers like the BLX-TC-5100 or Pixsys ATR series.
Semiconductors require ultra-rapid semiconductor protection fuses (gR or aR type) sized to the I²t rating of the relay to protect against short circuits.
Yes. Standard 25A, 40A, 60A, and 100A SSR models and matching DIN-rail heatsinks are available off-the-shelf at STARNEX.
