We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Transparent octal-base relay with rotary knob and LED indicator, 2.9 by 2.33 inches

Macromatic

Macromatic SFP120A100 Pump Seal Failure Relay 120VAC 8-Pin

SKU CH-X03G-XKYCY

Monitors pump seal integrity with adjustable 700 to 100,000 ohm sensitivity and SPDT relay output at 10A

  • TypeIndustrial Electrical Controls & Automation
  • ColorTransparent
  • Detects seal leaks from 700 to 100,000 ohm resistance range
  • SPDT contact rated 10 A at 240 V AC and 7 A at 28 V DC
  • LED status indicator provides immediate visual feedback on relay condition
  • Adjustable sensitivity via rotary knob for precise trip-point setting
  • Plug-in octal base with 8-pin terminal enables quick installation and replacement

Industrial Pump Seal Monitor

The Macromatic SFP120A100 relay monitors pump seal integrity in harsh industrial environments. It detects leakage by measuring resistance between 4,700 ohm and 100,000 ohm thresholds. A built‑in LED indicator provides immediate visual status of the seal condition. The unit operates on 120V AC supply voltage.

Plug‑In 8‑Pin Installation

The octal base plugs directly into standard 8‑pin sockets for quick mounting. A rotary knob allows on‑site adjustment of the sensitivity setting without tools. SPDT contacts switch loads up to 10 A at 240V AC or 7 A at 28V DC. The transparent housing lets technicians verify the indicator at a glance.

Single‑Channel Seal Detection

This relay provides one dedicated monitoring channel for a single pump seal. It does not support multi‑zone or multi‑pump configurations. Buyers who need simultaneous monitoring of several seals must install additional relays. The 2.9 in body depth and 2.33 in height fit standard control‑panel cut‑outs.

Highlights

  • Detects seal leaks from 700 to 100,000 ohm resistance range
  • SPDT contact rated 10 A at 240 V AC and 7 A at 28 V DC
  • LED status indicator provides immediate visual feedback on relay condition
  • Adjustable sensitivity via rotary knob for precise trip-point setting
  • Plug-in octal base with 8-pin terminal enables quick installation and replacement

Specifications

BrandMacromatic
ModelSFP120A100
TypeIndustrial Electrical Controls & Automation
ColorTransparent

Questions about this item

Will the SPDT contacts need replacement after extended switching at 10 A?

The relay is rated for 10 A at 240 V AC and 7 A at 28 V DC; contact life depends on load type and switching frequency, so plan inspection intervals around your actual duty cycle.

What limits continuous operation before the 8-pin base overheats?

The plug-in octal base handles the rated 10 A continuously; sustained loads near that level will generate the most heat, so ensure socket terminals stay tight and ventilation is adequate.

How much heat and noise does the unit produce when powered at 120 V AC all day?

Only the LED indicator and coil are energised, so audible noise is negligible and heat rise is low; the 2.9 in deep by 2.33 in high body dissipates warmth passively.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.