The MVAJ 11 to 34 range complements the more cost-effective range of MVAJ051 to MVAJ205 tripping relays. This range has been maintained to cater to historical users and their preference for these models. This range of tripping relays benefits from its high-speed operation and offers high and low burden alternatives. These particular models are kept to cater to historical users.

Three groups for type MVAJ relays

Type MVAJ relays can be roughly divided into three groups. High burden tripping relays comply with ESI 48-4 Class EB2. Low burden tripping relays comply with ESI 48-4 Class EB1 and control relays meet the requirements of National Grid Company SPEC.NGTS 2.19:1996. All high burden relays are for DC operation only.

High-speed operations and high/low burden alternatives

The MVAJ 11 – 34 range offers high-speed operations and high and low burden alternatives. Also available are models with surge proof against high capacitance discharge currents in the DC supply system. It can also provide AC-immune control relays.

Last time buy has been announced for the following models.

Orders may be placed until 15th August 2025 and will be fulfilled based upon availability.

• 11 Single element with self reset contacts. As an alternative, please refer to MVAJ051 or MVAJ101.
• 13 Single element with hand reset contacts. As an alternative, please refer to MVAJ053 or MVAJ103.
• 14 Single element with electrical reset contacts. As an alternative, please refer to MVAJ055, MVAJ104, or MVAJ105.
• 21 Double element with self reset contacts. As an alternative, please refer to MVAJ051 or MVAJ101.
• 23 Double element with hand reset contacts. As an alternative, please refer to MVAJ053 or MVAJ103.
• 25 Double element with hand & electric reset contacts. As an alternative, please refer to MVAJ055 or MVAJ105.

Manufacturing for the following models has been discontinued:

• Manufacturing for MVAJ15 and MVAJ17, 24, 28, 29, and 31 has been discontinued.  As an alternative, please refer to the MVAJ055 and MVAJ105 relays.
• Manufacturing for MVAJ26 has been discontinued. As an alternative, please refer to the MVAJ102
• Manufacturing for MVAJ27 has been discontinued. As an alternative, please refer to MVAJ103.
• Manufacturing for MVAJ34 has been discontinued. As an alternative, please refer to the MVAJ104 or MVAW.