ERECTA SWITCH® by Compac Engineering
Series 50 · ERECTA SWITCH Accessories

Solid State Relays, Latchers & Accessories

Reed switch sensors pilot loads — Series 50 relays switch them. Solid state AC switching from 24–240V with no moving parts, no arcing, and no audible clicking. Designed expressly for OEM integration with ERECTA SWITCH sensor systems.

24–240 VAC Non-Latching & Latching Up to 10A · 40A Inrush RoHS Compliant Made in USA

Why you need a relay with your ERECTA SWITCH sensor: Reed switch sensors deliver reliable, low-power contact closure — but they cannot directly switch pump motors, solenoids, or high-current loads. Series 50 relays bridge that gap. The sensor pilots the relay; the relay switches the load. The result is a complete, solid-state control circuit with no mechanical contacts to wear out.

Choose Your Switching Mode

Two relay architectures — non-latching for simple on/off, latching for wide-differential level control.

50-NP-AC5 NistorPac Solid State Relay
Available Now
50-NP-AC5
NistorPac — Non-Latching Relay

Solid state AC switching relay that turns ON when the sensor switch closes and turns OFF immediately when the switch opens. The simplest relay configuration for direct on/off load control. 5-pack. Eurostyle screw terminals. Built-in heat sink sufficient to 0.75A continuous — attach to supplemental heat sink above that threshold.

Voltage24–240 VAC
Max Load5A · 40A inrush
SwitchingSPST · N.O.
Pack Size5-pack
QuantityUnit Price
1–10$47.74
11–20$45.83
21–49$42.96
50–74$38.20
75–99$33.41
100–999$31.02
As low as $112.84 / 5-pack
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50-LP-AC10 LatchPac Solid State Latching Relay
Coming Soon
50-LP-AC10
LatchPac — Latching Relay

Solid state latching relay for wide-differential level control. Combines two ERECTA SWITCH sensors to create precise start/stop setpoints — one switch starts the latch energizing the load, the other stops it. Eliminates short-cycling and sensor chatter in pump and valve control applications. 10A continuous load capacity.

Voltage24–240 VAC
Max Load10A · 40A inrush
SwitchingDP · Latching
Dims2.43″ × 1.60″
Coming SoonThe 50-LP-AC10 LatchPac is in development. Contact us for availability and pre-order information.
Coming Soon — Request Info