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Small rectangular relay module in green phenolic or fiberglass housing with terminal pins visible

ALTRONIX

ALTRONIX RBST Relay Module 6/12/24VDC 30Ma DPDT

SKU CH-ZPE2-22ZJM

A relay module switching 12 or 24 VDC at 30 mA with DPDT contacts, measuring 2.75 by 1.90 by 1.10 inches and built from phenolic or fiberglass

  • Main materialPhenolic or Fiberglass
  • Versatile power compatibility with 12/24VDC input voltage
  • Space-saving design fits tight enclosures at 2.75 x 1.90 x 1.10 in
  • Reliable switching via DPDT contacts for dual-circuit control
  • Low 30mA coil current reduces power supply load
  • Durable phenolic or fiberglass construction withstands harsh environments

Relay Module for Access Control

The ALTRONIX RBST relay module switches low-voltage signals in door and window security circuits. It operates on 12 or 24 VDC input and draws 30 mA, making it suitable for access-control panels, intercoms and alarm systems that require a dry-contact output.

DPDT Contacts and Compact Housing

The double-pole double-throw configuration provides two independent change-over contacts from a single coil, allowing one module to control two separate circuits. The phenolic or fibreglass body measures 2.75 in long, 1.90 in wide and 1.10 in high, so it fits inside standard electrical enclosures and junction boxes.

Screw-Terminal Wiring and Clearance Checks

Installation uses screw terminals for the coil and contact wires; no special tools are required beyond a small screwdriver. Installers must verify that the 12 or 24 VDC supply matches the coil rating and that the enclosure offers enough depth for the 1.10 in module height. Builders needing more than two switched circuits or a different coil voltage will need additional modules.

How it compares

Measured against everything we stock in Door Stops, Hinges & Window Hardware, at today’s prices. Recalculated every night.

Price $7.99
Cheaper than about 62% of the 316 comparable items (median $14.99).

Specifications

Product
Brand nameALTRONIX
Size & build
Main materialPhenolic or Fiberglass
Shipping weight0.06 kg
Package size81 × 56 × 38 mm

Questions about this item

Will the relay contacts or coil require periodic replacement in a 12 VDC or 24 VDC access-control circuit?

The solid-state coil has no moving parts to wear out, and the DPDT contacts are rated for the listed 30 mA load, so no scheduled replacement is needed.

What electrical limit appears first when the module is energised continuously at 12 VDC or 24 VDC?

The coil draws a fixed 30 mA, so the 30 mA current limit is reached immediately and stays constant during sustained operation.

How much heat or noise does the phenolic or fiberglass enclosure produce when powered all day?

The coil draws only 30 mA at 12 VDC or 24 VDC, generating negligible heat and zero audible noise inside the compact 2.75 x 1.90 x 1.10 in housing.

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