NP-CLAW – HEAT KIT CERAMIC

Ceramic claw insulators support and insulate the heating elements inside an electric heat kit (heat strip). If a claw is cracked or broken, the heating element can sag, short out, or make contact with the frame — which can trip breakers or cause a burning smell.

Specs: Ceramic construction, universal fit for standard heat strip assemblies

Replaces: NP-CLAW

Fits: Universal — used in electric heat kits from Goodman, Rheem, Trane, Carrier, Lennox, and other brands

In stock at Open To Public HVAC Parts in Dallas. We test parts at the counter before you buy. Call or text (214) 340-9421.

Specs

• TypeCeramic (PTC) heat kit
• Voltage208/240V (verify)
• OEM CompatibilityUniversal

Cross-reference numbers

This part replaces the following OEM and aftermarket numbers:

• NP-CLAW

Not sure if your number matches? Call (214) 340-9421 or bring the old part in — bench-testing is free.

Fits these models

• Ceramic (PTC) heat kit — self-regulating positive-temperature-coefficient element
• Common applications: package units, fan coil units, supplemental heating zones
• Verify your equipment supports PTC ceramic before installing

How do I size a heat kit for my air handler?

Rule of thumb: ~100 CFM per kW of strips. So a 1,600 CFM air handler (4 tons cooling) handles up to about 15 kW. Going beyond your air handler's CFM capacity makes the strips overheat and trip the high-limit. Always verify against your air handler's spec sheet for max kW.

Can I add electric heat to my heat pump system?

Yes — heat pumps almost always use electric strips as backup ("auxiliary heat" or "emergency heat"). The thermostat energizes the strips when outdoor temps drop below balance point (typically 35-40°F in DFW). Match the heat kit to your air handler model.

What does the suffix on the part number mean?

The suffix typically indicates breaker configuration: - BRK = factory breaker included - BR = breakerless (you provide the disconnect) - Other suffixes = circuit count, voltage taps, or thermostat compatibility

How long does an electric heat kit last?

20+ years typical for the kit itself; individual heating elements (sheath heaters) may fail in 8-15 years from cycling. Most kits have replaceable elements — you don't have to replace the whole kit for one bad strip.

Why is my heat kit tripping the high-limit?

Restricted airflow is the #1 cause: clogged filter, dirty blower wheel, undersized return, closed-off supplies. The strips overheat when air doesn't move across them fast enough. Diagnose airflow before condemning the heat kit or limit switch.