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Watlow
Watlow Ring Terminal Thermocouple
Quote on request
No online payment · add lines to RFQ BOM
Style 70 ring terminal TC; mounts under screw/bolt; J/K/T/E. RFQ + selection help.
Download datasheet PDF
RFQ cart holds BOM lines only. Submit for engineering quote.
Key parameters
Measuring range
Fiberglass leads continuous to 480 °C (900 °F); PFA typically to 260 °C (500 °F)
Accuracy
Standard ASTM E230 thermocouple tolerances (type/temperature dependent)
Sensor type
Thermocouple types J, K, T, E; grounded standard; ungrounded only with 24-gauge wire
Construction Style
Style 70 ring terminal thermocouple
Stud Hole Sizes
A No.6; B No.8; C No.10; D 1/4 in; E 3/8 in (A–C 24-gauge only)
Terminal
Nickel ring terminal for mounting under screws/bolts
Fits surface temperature under fasteners where you need a Watlow Style 70 ring terminal thermocouple that mounts beneath an existing screw or bolt without process penetration.
Key advantages
- Style — Style 70 ring terminal thermocouple
- Types — J, K, T, E; grounded standard (ungrounded only with 24-gauge)
- Stud holes — No.6, No.8, No.10, 1/4 in, 3/8 in
- Temperature — Fiberglass to 480 °C (900 °F); PFA to 260 °C (500 °F)
- Leads — 6–360 in; fiberglass/PFA plain or SS overbraid
Typical applications
- Equipment skin temperature under bolts.
- Industrial heater surface sensing.
- Retrofits without drilling process walls.
Selection guide
- Stud hole — Match fastener size (A–E)
- Calibration — J/K/T/E
- Lead gauge / braid — 20 vs 24 gauge; overbraid yes/no
- Terminations — Plugs, spades, BX, push-on
Common mistakes
- Using ungrounded on wire gauges that do not support it.
- Stud hole too small for fastener.
- Exceeding PFA lead temperature.
When to RFQ / what to tell us
- Stud size, type, lead length/insulation.
- Terminations; quantity; ship-to.
Request a Quote · Get selection help
Specs
| Spec | Value |
|---|---|
| SKU | 22616 |
| Brand | Watlow |
| Model | Ring Terminal Thermocouple |
| Product type | Thermocouple |
| Construction | Style 70 ring terminal thermocouple |
| Sensor type | Thermocouple types J, K, T, E; grounded standard; ungrounded only with 24-gauge wire |
| Measuring range | Fiberglass leads continuous to 480 °C (900 °F); PFA typically to 260 °C (500 °F) |
| Stud hole sizes | A No.6; B No.8; C No.10; D 1/4 in; E 3/8 in (A–C 24-gauge only) |
| Terminal | Nickel ring terminal for mounting under screws/bolts |
| Lead protection | Fiberglass or PFA, plain or with stainless steel overbraid (20/24 gauge) |
| Lead length | 6 to 360 in (over 360 in contact factory) |
| Terminations | Split leads, #6 spade lugs, BX, standard/miniature plugs/jacks, ¼ in push-on |
| Accuracy | Standard ASTM E230 thermocouple tolerances (type/temperature dependent) |
| Applications | Surface temperature under fasteners; equipment skin; industrial heaters |
| Features | Mounts beneath existing screws/bolts without process penetration |
Documents
FAQ
Q: How does it mount? A: Nickel ring terminal under an existing screw/bolt.
Q: Stud sizes? A: No.6 through 3/8 in (A–E).
Q: What should I send for a quote? A: Stud/type/leads, quantity, ship-to.
Links
| Parameter | Value |
|---|---|
| Measuring range | Fiberglass leads continuous to 480 °C (900 °F); PFA typically to 260 °C (500 °F) |
| Accuracy | Standard ASTM E230 thermocouple tolerances (type/temperature dependent) |
| Sensor type | Thermocouple types J, K, T, E; grounded standard; ungrounded only with 24-gauge wire |
| Construction Style | Style 70 ring terminal thermocouple |
| Stud Hole Sizes | A No.6; B No.8; C No.10; D 1/4 in; E 3/8 in (A–C 24-gauge only) |
| Terminal | Nickel ring terminal for mounting under screws/bolts |
| Lead Protection | Fiberglass or PFA, plain or with stainless steel overbraid (20/24 gauge) |
| Lead Length | 6 to 360 in (over 360 in contact factory) |
| Terminations | Split leads, #6 spade lugs, BX, standard/miniature plugs/jacks, ¼ in push-on |
| Applications | Surface temperature under fasteners; equipment skin; industrial heaters |
| Special Features | Mounts beneath existing screws/bolts without process penetration |
| Catalog Family | Watlow general applications tube-and-wire thermocouples |