# Fireboy-Xintex Auxiliary Relay [MB30-RLY]

**Auxiliary Relay**  
  
30 Amp, single pole double throw relay for extra heavy loads.  
  
**For use with the following fume detectors:**  

-   MB-1-R  
    
-   S-2A

**Specifications:**

-   Blower Relay: No
-   Generator Shutdown: No
-   Box Dimensions: 2"H x 2"W x 3"L WT: 0.1 lbs
-   UPC: 619749211624

## Details

- **Price:** 59.99 USD
- **Type:** Fume Detectors
- **Tags:** 1st Class Eligible, Automotive/RV, Automotive/RV | Fume Detectors, Brand_Fireboy-Xintex, Marine Safety, Marine Safety | Fume Detectors

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 59.99 USD | In stock |

## Images

- Fireboy-Xintex Auxiliary Relay [MB30-RLY] Fireboy-Xintex

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> Source: [Besafe1st](https://besafe1st.com/products/xintex-auxiliary-relay-mb30-rly)
> Updated: 2026-07-07