KSD301-50C Elite Limit Disc Thermostat – 122°F (50°C) NC, Open on Rise, 250V 16A
The KSD301-50C Elite Limit Disc Thermostat is a compact, reliable temperature control device designed to protect heating and cooling equipment from overheating. Operating at 122°F (50°C), this thermostat is normally closed (NC) and opens on temperature rise to interrupt current when the set limit is reached. Built for durability and consistent performance, it’s ideal for a wide range of appliances, HVAC systems, and heating applications.
🔑 Key Features
✅ Temperature Rating: 122°F (50°C)
✅ Function: Normally Closed (NC) – opens on rise
✅ Electrical Rating: 250V AC, 16 Amp
✅ Reliable bimetal disc design for accurate temperature response
✅ Compact and easy to install
✅ Protects equipment from overheating by cutting off power at the set temperature
📊 Technical Specifications
| Specification | Details |
|---|
| Product Code |
KSD301-50C |
| Temperature Rating |
122°F (50°C) |
| Contact Type |
Normally Closed (NC) – Opens on Rise |
| Voltage Rating |
250V AC |
| Current Rating |
16 Amp |
| Mounting Style |
Disc-type limit switch |
| Application |
HVAC, appliances, heaters, temperature safety cut-off |
🔄 Cross Reference / Replacement Compatibility
| Elite Part # | Equivalent / OEM |
|---|
| KSD301-50C |
KSD301 Series Thermostats (50°C / 122°F, NC, Open on Rise) |
| KSD301-50C |
Common OEM appliance and HVAC limit thermostats |
⚠️ Common Symptoms of a Faulty Limit Thermostat
-
Equipment overheats or shuts down unexpectedly
-
Heating element or appliance fails to cycle properly
-
System continues running past safe temperature limits
-
No continuity when thermostat should be closed
✅ Quick Compatibility Reference
| Series | Temperature / Spec |
|---|
| KSD301 Series |
50°C (122°F), NC, Open on Rise, 250V 16A |
❓ Frequently Asked Questions (FAQ)
Q1: What does “Normally Closed (NC), Open on Rise” mean?
A: It means the thermostat maintains a closed electrical circuit under normal temperatures. When the set temperature (122°F / 50°C) is reached, the contacts open, cutting off power.
Q2: Can this thermostat be reset?
A: Yes, the KSD301-50C is an automatic reset thermostat. Once the temperature falls below the set limit, it will close again.
Q3: Where is this thermostat used?
A: Common in HVAC systems, appliances, heaters, fan controls, and safety cut-off applications.
Q4: What is the voltage and current rating?
A: Rated for 250V AC at 16 Amps.
Q5: Can it replace other KSD301 thermostats?
A: Yes, as long as the temperature rating, contact type (NC), and electrical ratings match.
